The study explores the innovation of economic transaction model in the framework of blockchain technology and optimizes the key algorithms in the transaction. The study integrates the advantages of traditional sharing contracts and smart contracts to construct a blockchain model for sharing economic transaction innovation mode. Based on the feature selection method of chi-square test and feature correlation, the gated recurrent unit (GRU) is combined with the support vector machine (SVM) algorithm to form a detection model for abnormal blockchain transactions. For the Practical Byzantine Fault Tolerance (PBFT) consensus mechanism in the economic model, the study proposes a node pre-prepared layered consensus protocol to optimize it, and introduces a reputation model to rank nodes in terms of their reputation value, enhance the node’s ability to defend itself against Sybil’s witch attack, and improve node’s motivation. The research results show that the anomaly detection model based on feature selection can effectively realize the accurate detection of transaction anomalies, and the detection performance of the GRU-SVM model improves the F1 score by 1.11% in the feature subset than in the full feature dataset. The improved PBFT consensus algorithm has significant improvement over the original PBFT algorithm in terms of algorithmic complexity, communication complexity, and throughput, which effectively guarantees the security of sharing economy transactions.
With the continuous development and popularization of information technology, the field of product packaging design is inseparable from the application of computer graphics design. In order to realize the visualization of complex forms of packaging design, this paper proposes a packaging design image processing algorithm based on the visual characteristics of the human eye to enhance the packaging design pattern. Combining the Transformer and Generative Adversarial Network (GAN) algorithms, the DPformer-GAN model is constructed to realize the layout innovation of the product packaging, and the loss function is designed. The packaging creative design method based on DPformer-GAN model proposed in this paper is applied to design the packaging of clothing products. The average value of the designed clothing product packaging is higher than 4 in each dimension of the evaluation of the effect of color elements, and in the evaluation of the effect of the logo elements of the packaging, the prominence of the packaging logo is the most prominent, and the average value of the psychological evaluation of the purchase intention and the degree of brand impression reaches a high rating of 4.18 and 4.09. The overall visual layout of the packaging elements is also more effective, which strengthens the unique characteristics and visual recognition of the packaging design. The overall visual layout of the package is also more effective, strengthening the unique characteristics and visual recognition of the package design.
With the rapid development of emerging technologies, legal text datatization provides the possibility of intelligent legal judgment assisted decision making. In this paper, a multi-task judgment prediction model based on data mining algorithm and Lawformer is designed to introduce Lawformer pre-training model, incorporate legal theories, and utilize HAN encoder to encode the case text at the word level and sentence level in order to better capture the semantic information. Then the support vector machine algorithm is integrated into the model to explore the crime composition, and a multi-task learning framework is constructed for the intelligent legal judgment assisted decision-making model. The experimental results show that the model in this paper performs well on the CAIL2018-Small public dataset, which significantly improves the model’s legal judgment prediction accuracy and interpretability, with micro-averaged F1 values of 87.3 and 85.4 on the two tasks of crime prediction and law recommendation, and the overall legal case prediction correctness is as high as 99.48%. The research in this paper provides a new working path for the field of intelligent justice, which contributes to the scientific and intelligent development of legal judgment assisted decision-making.
In order to protect and inherit the excellent traditional culture and enhance the economic value of cultural industry, the article proposes a method of digital extraction and modern design application of traditional patterns based on digital means to adapt to the development of today’s society and the transformation of consumer demand. The article first combines the traditional pattern pattern with the characteristics of texture directionality, and proposes an adaptive weighted feature fusion traditional pattern feature extraction algorithm that introduces wavelet energy analysis. Subsequently, a traditional pattern style classification algorithm based on capsule network is proposed to improve the traditional pattern classification accuracy. Then a traditional pattern style migration method based on VGG19 network is designed, which is applied to modern design, and the performance test and subjective and objective evaluation of this paper’s method are conducted. The experimental results show that the method of this paper can realize the modern design of traditional patterns with good effect, and compared with the classical slow style migration and fast style migration methods, it has better image conversion quality and higher conversion efficiency, which can provide a certain design and development of reference value for modern pattern design.
With the in-depth development of education informatization, the optimal construction of co-curricular heterogeneous course resources and the recommendation of personalized learning paths have become an important research field in the education sector. In this paper, we propose an algorithm for the optimal construction of heterogeneous course resources and learning path recommendation based on subject knowledge mapping. Firstly, based on the linear chain conditional random field model and the relational multi-classification model, the recognition of named entities and the extraction of entity relations are accomplished respectively. Then the relationships between the obtained subject knowledge points are inputted into Neo4j graphical database to complete the visualization of subject knowledge graph. The smart learning E-GPPE-C model and the constructed subject knowledge graph are combined to construct the learner portrait and complete the design of the learning path recommendation algorithm from four cognitive levels. The entity recognition and relationship extraction models in this paper both obtain more excellent experimental results, and the learning path conforms to the law of gradual progression in education, obtaining much higher than the comparative algorithm P@20 value, which reaches 75.45. The method in this paper can effectively explore more scientific learning paths, provide a method for the optimization of the resources of co-curricular heterogeneous courses, and provide support for personalized education.
Tactical communication datalink, as an important part of networked national defense informatization construction, is more difficult to quantitatively assess its effectiveness and transmission load balancing. In this paper, the natural connectivity of tactical communication datalink network is introduced, and an interference effectiveness assessment method based on weighted natural connectivity is proposed to realize the time sequence analysis of tactical communication datalink network. The AGCH algorithm is used to group and cluster the nodes of the tactical communication datalink network, and the adaptive genetic algorithm is used to solve the established model to improve the load balancing effect of network transmission. Relying on the tactical communication datalink network simulation system architecture, the transmission load balancing test of tactical communication datalink network is carried out. The transmission load balancing algorithm proposed in this paper has a convergence speed of 340s, and when the number of tasks increases from 50 to 300, its corresponding task completion time grows from 68s to 275s, and the load balancing differential value decreases from 0.4 to 0.34, which is always the lowest when comparing with other algorithms, such as ACO, ICA, PSO, PSO-ACO, and so on.
As a large agricultural country in China, the development of rural industry is a key part of realizing rural revitalization. The article takes 31 provinces (autonomous regions and municipalities directly under the central government) in China as the object of empirical research, and constructs the evaluation system of the level of development of digital countryside industry from four dimensions: digital countryside capital investment, information base, service base, and industrial development. Then, the model of this paper is used to empirically analyze the influencing factors of digital village industry development. Then, the kernel density estimation and other methods are used to assess the level of industrial development of digital villages, and the spatial and temporal characteristics of digital village development are analyzed in depth from the whole, the region, and the dimensions. Finally, based on the research conclusions and the actual situation, the enhancement path of rural industrial revitalization is proposed. From 2012 to 2024, the comprehensive level of China’s rural industrial development as a whole shows the evolutionary characteristics of rising, then declining, then fluctuating level. The development level of rural industrial revitalization has three major characteristics: significant regional differences, uneven development between coastal and inland, and positive correlation with the level of economic development.
Highway and bridge pavement engineering materials are facing great aging, depletion and disease pressure under the cross-impact of traffic load, climate and geological environment, etc. Therefore, real-time monitoring of pavement health is particularly important. In this paper, based on the fuzzy mathematical algorithm and multi-factor analysis, the road and bridge health monitoring data assessment method is explored. First, the hierarchical structure of road and bridge health comprehensive monitoring indexes was constructed by combing the literature and utilizing the hierarchical analysis method. Then, the indicators were weighted by combining the G1 method and DEMATEL method. Finally, the cloud model was used to conduct a fuzzy comprehensive evaluation of road and bridge health. The results of the example application show that the method of combining the G1 method and DEMATEL method for indicator assignment in this paper takes into account the causal relationship between each indicator, and the results of the comprehensive weighting are more scientific and effective, which is of practical significance for assessing the health status of road and bridge. In addition, the fuzzy comprehensive evaluation model based on the cloud model in this paper can make up for the shortcomings of the traditional evaluation of the road and bridge health status reflecting insufficiently, and the mean value of the fuzzy evaluation agreement ratio of each data set is greater than 0.87, and the fuzzy evaluation agreement ratio increases year by year with the passage of time. In addition, this paper explores the shortcomings of the methods used and provides directions for further improvement of the model.
In this paper, sensor data are collected by group wise perception for preprocessing and fusion, SSA method is introduced to divide the output of LSTM into temperature loading effect with periodic trend, and residual data as vehicle loading effect and noise, combined with BDLM method to reduce the noise, increase the accuracy and stability of the model, and effectively monitor the bridge structure in real time. Then the Stacking integrated learning algorithm is used to mix different kinds of base learners to reduce the variance, which effectively improves the generalization ability of the model and realizes the fault warning of the bridge structure. The results show that the proposed method can effectively reduce noise, increase the accuracy and stability of the model, and alleviate the risk of overfitting. The LSTM-SSA-BDLM model can obtain vehicle-induced strain data under lossy and nondestructive conditions, and the four damage assessment indexes of “k, R², b and Ta” are stably distributed in the range of 0.45~1.55, which can effectively identify the hypothetical bridge damage. The baseline value of the warning threshold is pre-tested and estimated using the Pareto distribution model, and the value of the mid-span disturbance for a suspension bridge with 95% guarantee is obtained as -0.7076m, which ensures that the baseline value of the threshold can meet the standard of material strength.
In this paper, the entropy weight method and fuzzy comprehensive judgment model are combined with the evaluation index system of cultural development of film and media and digital cultivation of talents to realize the measurement of the level of cultural development of film and media and digital cultivation of talents. The coupling coordination degree model is used to calculate the coupling coordination degree between cultural development and digital cultivation of talents, and Dagum Gini coefficient, kernel density estimation and convergence test are used to explore the reasons for the differences in the coupling coordination degree between cultural development and digital cultivation of talents, the distribution characteristics, and the convergence. The results of the study show that the mean value of the coupling coordination degree between cultural development and digital cultivation of talents in Guangdong, Hong Kong and Macao Greater Bay Area ranges from 0.466 to 0.501 from 2013 to 2023, and shows a fluctuating and slowly increasing trend. The average contribution of intra-group gap, inter-group gap and hypervariable density in the three metropolitan areas of Guangzhou-Foshan-Zhaoxing, Shenzhen-DongguanHuizhou and Zhuhai-Zhongjiang are 28.676%, 40.102% and 31.221%, respectively, and the inter-group gap is the main factor contributing to the difference in the coupling coordination degree of the three metropolitan areas. Meanwhile, the convergence of the coupling coordination degree of the Pearl River Delta and the three metropolitan areas is good, and improving the coordination between cultural development and digital cultivation of talents in cities with low levels of coupling coordination degree can effectively narrow the gap between them and cities with high levels of coupling coordination degree.
The implementation of traditional energized line operation relies on manual experience, which has the problems of outdated control technology and insufficient reliability, and seriously affects the operation safety. In this paper, based on the hierarchical algorithm and visual sensor, after completing the preprocessing of the visual sensor data, the point cloud data is combined with the power line operation to obtain the point cloud data characteristics under the power line operation scene. At the same time, a point cloud alignment method based on octree and KD tree multilayer index structure is proposed to improve the traditional ICP point cloud alignment algorithm for threedimensional modeling of the safety distance of power line. Then the safety distance of the power line operation is calculated to realize the safety distance localization of the power line by visual sensors. Compared with the traditional BIM and GIM modeling methods, the 3D model elevation point location curve under the modeling method of the safety distance of the power line in this paper has a higher degree of fit with the original curve and higher modeling accuracy. The safety distance localization method of energized lines in this paper also meets the safety distance warning requirements of 10kV and 35kV voltage levels at the same time, and the validity has been verified.
This paper denoises the collected stock market return data during the audit period based on wavelet transform and constructs a GARCH-MIDAS model to capture the volatility characteristics of the return data. The autoregressive conditional heteroskedasticity (ARCH) test, Q-test and ADF test are used to demonstrate the reasonableness of the GARCH-MIDAS model construction in this paper. The parameter estimation of the GARCHMIDAS model is carried out using the great likelihood estimation method to further illustrate the validity of the model in this paper. The results show that the denoised yield data using wavelet transform is smoother than the original data, and can retain the main volatility characteristics in the original data, providing good data support for the subsequent capture of volatility characteristics. The macroeconomic and economic policy uncertainty variables are basically significant in the parameter estimation of one-factor and two-factor GARCH-MIDAS models, which can effectively reflect the overall and long-term volatility characteristics of yield data.
Weir flow measurement is an important content for safety monitoring of hydraulic buildings, and it is of great significance to strengthen the seepage monitoring of hydraulic buildings to ensure the safety of hydraulic buildings and feedback design. Based on the basic principles of optimal design of engineering structures and the theory of structural reliability, this paper uses nonlinear planning to optimize the structural design and flow calculation method of water-measuring weir in water conservancy canal system, and analyzes the hydraulic characteristics of the optimized water-measuring weir through numerical simulation, which verifies the effectiveness of the proposed method. The simulation results show that the influence of the new trapezoidal water-measuring weir with different orifice heights on the outflow over the weir gradually decreases with the increase of the total head in front of the weir, and the fitted flow equations are concise, easy to use and highly generalized, with an average relative error of 2.55%. At the same time, the average relative error of the flow and water depth of the U-shaped channel triangular profile weir is 0.22% and 5.76%, respectively, and the flow measurement accuracy of the long-throat channel optimized by the method of this paper is also controlled within 6%, which is in line with the flow measurement requirements of the water measuring channel, which indicates that the simulation results have a certain degree of reliability, and can provide a reference basis for the optimization of the design of the engineering structure of the water measuring facilities.
This paper constructs a digital maturity model of asset management for the elderly with 4 target layers and 13 factor layers. On the basis of the evaluation index system established by the hierarchical analysis method, it combines the fuzzy comprehensive evaluation method to establish the risk evaluation model of elderly asset management. Then the fuzzy set qualitative comparative analysis method is used to explore the digital transformation of assets to provide a scientific and feasible way to make the process of digital transformation of elderly asset management more standardized and procedural. The weighting results of the target layers show that the weights of the four target layers, namely, “organization construction, technology application, operation guarantee and innovation drive”, are small, ranging from 0.2303 to 0.2654, while the weights of the factor layers, namely, “innovation of data technology, business model and technological achievement”, and “innovation of technology results”, are the only factors to be considered. In the factor layer, only “data technology business model and technological innovation” has a weight of more than 0.1, which shows that the digital transformation path of assets is closely related to the development of science and technology. In addition, indicators such as talent and maintenance management are also extremely important to the digital transformation of asset management for the elderly. This paper also emphasizes the importance of the three indicators of “capital investment, internal control of marginal conditions, and talent reserve” to realize the digital transformation of asset management for the elderly.
Online electronic transactions in the big data era form the basis of the application environment for realtime dynamic pricing, and automated dynamic pricing for e-commerce platforms has become a trend. In this paper, the dynamic pricing strategy optimization problem for e-commerce platforms is deeply explored based on deep reinforcement learning methods. The study defines the dynamic pricing problem and transforms this problem into a Markov decision process model, based on which the A3C algorithm is applied to decouple the model to realize the dynamic pricing strategy optimization of e-commerce platform. Experiments show that. The dynamic pricing algorithm for e-commerce platforms based on the A3C method can show better gain results, with an average gain as high as 4033, and is more stable compared to other benchmark algorithms, which can adapt to the complex demand level as well as a large state space. In addition, the effects of gain threshold and loss threshold on the ordering decision of e-commerce platform mainly occur in the low initial inventory region, and the effects on the pricing decision are more significant in the high initial inventory region. This paper has strong application value for pricing strategy optimization and inventory control decision of e-commerce platforms.
With the arrival of the digital era, how enterprises can promote their financial performance through the implementation of digital transformation has become a hot issue. This paper establishes an enterprise financial performance evaluation system based on fuzzy theory and BP neural network. First, a reasonable neural network structure including the number of network layers, the number of nodes in the hidden layer, the training method and other related parameters are set, and then the adaptive step maximum gradient descent method is applied to train and test the BP neural network, and the constructed fuzzy system, which is combined with the BP neural network, is applied to the evaluation of corporate financial performance. Finally, taking Company Q in the traditional Chinese medicine industry as the research object, the construction of the financial performance evaluation index system is completed, and the four common factors representing 85.692% of the information of the original variables are extracted by using the factor analysis method to complete the scientific description of the enterprise’s financial performance management level. The evaluation model based on fuzzy logic and BP neural network achieves an average prediction accuracy of more than 95% for the test samples, realizes excellent financial performance optimization and innovation, and puts forward comprehensive measures such as setting up internal enterprise financial performance management values, exerting the performance appraisal mechanism and guiding the systematization of performance evaluation, which to a certain extent improves the enterprise performance management system.
The development of vocational education cannot be separated from skill competitions, and skill competitions in higher vocational colleges and universities are an important platform for testing the improvement of students’ skills. In this paper, we take the students of S higher vocational colleges in Guangdong Province, China, who are in the Internet international trade competition for higher vocational colleges as the research sample, and choose descriptive statistical analysis and correlation analysis as the data statistical methods of this research. From the perspective of learner portrait, we constructed a student ability portrait model based on the objective function of clustering algorithm FCM, calculated fuzzy division coefficients through the number of classifications and attribution probability matrix, determined the appropriate number of student clusters, and obtained the classification results of the portrait. In the analysis of student ability portrait, the optimal number of clusters is determined to be 4, and four groups of learners, namely, active catch-up, potential constructor, active collaborator and passive receiver, are classified, and at the same time, based on the group characteristics presented by different learning ability portraits, the precise cultivation paths are proposed for different groups of learners in preparation for the process of Internet International Trade Competition.
With the rapid development of the intelligent construction industry, the demand of enterprises for highquality talents specialized in intelligent construction is becoming more and more urgent. This paper discusses the evaluation model of talent cultivation effect of intelligent construction professionals under the innovation of BIM education system based on support vector machine (SVM) and principal component analysis (PCA). Firstly, the evaluation index system of intelligent construction professional talent training effect is constructed, due to the excessive evaluation indexes of intelligent construction professional talent training effect, the multi-dimensional data of talent training effect is downgraded by principal component analysis to avoid the estimation distortion of the model. Then the principal components with a determined number are transformed into the principal component matrix and input into the SVM, and the parameters of the SVM are selected based on the grid search algorithm, and the SVM is trained. The study shows that the assessment model of this paper can effectively evaluate the training effect of intelligent construction professionals in different institutions, and obtains the average absolute error \(E_{MA}\) and the mean square error \(E_{MS}\) with the optimal performances, and the values of the two indexes are 0.03 and 0.005, respectively. The innovative education effect assessment method of this paper provides a scientific basis for the optimization of the teaching content and the improvement of teaching methods. It provides a scientific basis and lays a foundation for improving the quality and knowledge level of intelligent construction professionals.
Benford’s law is a commonly used method to test the quality of financial data, and introducing Benford’s law into the logistic regression model for financial risk early warning can increase the number of effective variables representing the quality of financial data and improve the prediction accuracy of the early warning model. This paper applies Benford’s law to test the quality of financial data, constructs modified Benford’s factor, and combines it with financial variables to establish a Benford-Logistic model for financial risk warning. Taking Chinese A-share listed companies from 2006 to 2023 as samples, the Lasso method is used to screen the explanatory variables and determine the optimal model so as to realize the risk assessment of the financial data, and the validity of the model is verified by taking Company A as the target. The results of the study show that the introduction of the modified Benford quality factor into the logistic regression model can improve the accuracy of the early warning model for the risk of corporate financial data, and the model constructed is effective when applied to Company A. It is in line with the actual situation of Company A. The early warning model is of great significance in the prevention of the financial risk of the enterprise.
Landscape greening system plays an important role in promoting urban construction, improving ecological environment and improving residents’ quality of life. This paper introduces the complex network theory, constructs a network model of landscape green space system, and takes the correlation, connectivity, robustness and basic static statistical characteristics of the network as the indexes of landscape green space system to provide a method for the topological analysis of the spatial structure of landscape green space system. Taking Ordos City, Inner Mongolia, China, as the study area, the topological analysis of the spatial structure of landscape green space system is carried out, and then in response to the optimization demand, a multi-objective optimization model for the layout of urban parks is constructed based on the NSGA-II algorithm, which is used as the basis for the screening of candidate points of landscape green space to be constructed under planning. Using the model of this paper to optimize the spatial structure of Ordos City landscape garden green space system, most of its node degree, important nodes and connectivity are improved significantly, and the number of network attack nodes reaches 300 after optimization, and the connectivity robustness is still around 0.2.
With the continuous change of the global economy and the increasingly fierce competition in the market, the financial risks faced by enterprises are increasingly complex and diverse. This paper constructs a LSTM neural network financial risk early warning model for enterprises based on recursive neural network. 130 listed companies were selected as the research object, and 28 financial indicators and 2 non-financial indicators were obtained as the research samples. Then the 30 financial early warning indicators were downscaled using factor analysis to extract the principal component factors. The principal component factor scores are input to the LSTM network, the relevant parameters of the network are set, and the network is trained to complete the construction of the enterprise financial risk early warning model. The training results of this paper’s model show that the model tends to be balanced after three hundred iterations, and the fit of the model is better, and the loss value is only 0.12. The empirical results of the model’s financial risk prediction show that this paper’s model has a better performance than the traditional prediction models, such as Random Forest, in terms of the prediction of corporate financial risk. The application of LSTM neural network to the financial warning of enterprises has obvious advantages.
The emergence of virtual reality technology provides great convenience for English teaching work and greatly promotes the reform and innovation of English education. In order to effectively integrate virtual reality technology with English contextual teaching, this paper constructs an English teaching context based on virtual reality panoramic video. Paired-sample t-test and social network analysis are chosen as the data processing methods to carry out a college English contextual teaching experiment in two parallel classes in the second year of non-English majors in D colleges and universities in Xi’an City, Shaanxi Province, China, to explore the effect of the application of the English contextual teaching model based on VR panoramic video proposed in this paper on the students’ English learning. The posttest score of the experimental class is 68.69, which is 6.8 points higher than that of the control class, and presents a significant difference with a significance probability of 0.012<0.05 in the ttest result. The clustering coefficient of the community network of English translation activities in the experimental class is as high as 0.85, the social network connection is dense, and the students are all able to actively participate in English learning activities.
The digital twin virtual simulation platform has strong visualization and interactivity, which can transform abstract theoretical knowledge into vivid and imaginative virtual scenes, helping to improve students’ learning interest and enthusiasm. This paper introduces the digital twin education application framework, discusses the specific application methods of digital twin technology in Russian distance teaching, and constructs the corresponding Russian language teaching mode. For the examination management module, an improved genetic algorithm is used to realize the intelligent grouping of papers for remote Russian language teaching. The comparison results of the genetic algorithm before and after the improvement show that the fastest time of the genetic algorithm before the improvement is not less than 7500ms, and the difficulty of the generated test paper is not in the moderate [0.4~0.6) range. While the improved genetic algorithm is in the moderate range in terms of grouping difficulty, and the time can be reduced by at least 2 s. The article also proposes to introduce the improved fuzzy clustering algorithm incorporating AFSA into learning behavior analysis to portray learners. The final experiment confirms that the AFSA-FCM based model can accurately cluster learners, thus portraying learner profiles in a deeper and more comprehensive way. It helps teachers to carve out the characteristics of different learner groups and provides a key basis for decision-making in teaching and learning support services.
The safety of children’s products is closely related to children’s health and life safety, and is an important part of the design process that cannot be ignored. This paper takes children’s products as the research object, and explores the method of children’s product safety assessment from the perspective of image feature recognition and classification. The images of children’s products are preprocessed by geometric transformation, grayscaling and image enhancement to extract their color, texture and shape features. Relying on the image features of children’s products, a VGG-based image feature recognition model of children’s products is constructed, and the model performance is improved by the increase of residual module and the equivalent conversion of multi-branching model into a single-path model, so as to realize the safety assessment of children’s products. In the safety assessment experiments of children’s products, the model in this paper achieves optimal results in four aspects, namely, accuracy, precision, recall and F1 value, which reach 98.34%, 98.34%, 98.33% and 98.34%, respectively. Compared with the original ResNet18 model, the model also has better recognition accuracy in the face of different categories of images of children’s products, and can play an effective role in the work of children’s product safety assessment.
In this paper, based on the characteristics of English vocabulary and students’ behavioral data, a cognitive level test learning model based on IRT theory is constructed, and for the defects existing in K-means clustering algorithms, a user clustering recommendation algorithm based on the minimum variance is obtained by using the minimum variance optimization initial cluster heart method. On this basis, a personalized recommendation platform for English vocabulary learning based on students’ vocabulary level with dichotomous K-means clustering is designed and implemented, and the effectiveness of the platform is verified. The experimental results show that the method proposed in this paper can very directly observe that the topic parameters and students’ learning ability values match the information reflected in the actual data. In addition, the accuracy of this paper’s model in successfully recommending learning resources can be improved by up to 58.23% compared with the traditional model, and relevant extended knowledge of non-vocabulary subjects such as oral expressions is given in the recommendation results, which alleviates the problem of increasingly narrow vision of students caused by the cocoon effect. Teaching experiments show that this strategy can significantly improve students’ learning of English vocabulary and increase the mean value of their English scores by 7.4628 points. Obviously, the model in this paper solves the defects of the existing English vocabulary learning software that does not meet students’ individual needs.
In order to fully explore the fault information embedded in electromechanical faults and realize the accurate judgment of electromechanical faults, this paper improves the FOA algorithm with an electromechanical fault prediction model based on IFOA-SVM. The population division process is added, the better subpopulation and the worse subpopulation are updated according to different steps, the balance of the algorithm’s search ability in different periods is realized, and the optimal parameters of the support vector machine are obtained by using the improved fruit fly algorithm. It not only realizes the diagnosis of electromechanical faults with higher accuracy, but also solves the defects that the fruit fly algorithm is easy to fall into the local optimum and has low convergence accuracy in the later stage. In the experimental validation, the gun control box component in the fire control system of a certain tank is selected as the research object, and the IFOA algorithm is compared with BP neural network, GA-SVM, GWO-SVM and other algorithms, and the average prediction accuracy of the three experiments reaches 100.00%, and optimal fitness is obtained when the number of iterations reaches 10 times. The research in this paper provides a new effective method for electromechanical fault prediction, which has important theoretical and practical application value.
Industrial robotic arms have flexible maneuverability and have been widely popularized in various industries, therefore, the study of mobile robotic arm motion planning and control system has very important theoretical and practical value. In this paper, an optimal time-impact trajectory planning method for the robotic arm is proposed, which adopts five times non-uniform B-spline function to construct interpolation curves in the joint space, replaces the motion constraints of the robotic arm with the constraints of the control vertices of the B-spline curves of each order, and uses multi-strategy improved viscous bacterial algorithm to optimize the objective function. Simulation and experimental results show that the proposed improved mucilage algorithm can effectively improve the performance of the SMA algorithm, and the optimal trajectory planner is able to obtain a safe and smooth timeimpact optimal trajectory under the premise of satisfying the joint constraints with the running time less than 15s and the impacts in the range of [10-7 rad, 10-3 rad]. This study ensures that smaller shocks are generated during the motion process, which makes the motion control performance of the robotic arm improved.
Under the rapid development of digital education, the introduction of artificial intelligence technology into the reform of language education can make up for the shortcomings of traditional methods and improve the quality of language education. In this paper, we first design the joint extraction algorithm of entity relationship based on graph convolutional neural network, which improves the accuracy of recognition by fusing the designed ontology attributes. Then it proposes the method of extracting the features of language education entities in the knowledge graph using R-GCN model for classifying and predicting the potential relationships between entities, so as to realize the construction of the knowledge graph of language subjects. Finally, a reform path for language education is proposed, with a view to providing a useful reference for promoting language education to a higher level. In the dissimilarity matrix analysis of high-frequency keywords in language education research. It is found that the relationships with language education are, in descending order, language teaching, comprehensive learning, language education, curriculum standards, language teachers and so on. Thus, it can be concluded that “language education” and “language teaching” are most closely related in the research process of language education.
Effective allocation of multiple types of resources in large-scale construction projects is a key issue facing project management theory and engineering management practice at this stage. This paper constructs a system dynamics model of resource allocation for construction projects, and builds a resource allocation optimization model for construction site of construction projects with BIM and genetic algorithm, uses NSGA-III genetic algorithm to solve the model to obtain the Pareto frontier solution set, and adopts the method of distance between superior and inferior solutions (TOPSIS) to obtain the optimal solution, and verifies its feasibility and validity in the actual cases. The simulation results show that the insufficiency of funds and materials will directly produce a large schedule deviation, while the sufficient amount of funds and materials, although it can guarantee the construction progress to a certain extent, if it cannot be reflected in the number of labor and machinery, it will cause mismatches in the number of labor, materials and machinery, which will affect the efficiency of resource allocation. The NSGA-III genetic algorithm used in this paper can effectively solve the problem of optimal allocation of multi-project resources, and there is a significant reduction in the variance of resource consumption after configuration optimization. In addition, the degree of harmony of multi-project resource management using the method of this paper reaches the excellent level, which verifies the high efficiency of the model of this paper in the resource allocation in the construction site of a building project.
Speech recognition systems face the challenge of speech recognition from people with different accents from different countries and regions, and the research on multi-accent speech recognition methods has received extensive attention. In this paper, an end-to-end English accent recognition method based on Bidirectional Long Short-Term Memory Network Linked Temporal Classification and Attention Mechanism (BiLSTM-CTC-AM) is proposed and combined with the speech separation model of Parameter-Free Fourier Transformer Network (FNet), the design of an automatic recognition system for English accents is realized. Then the English text obtained from the recognition is used as the input corpus, and a grammar error correction model based on augmented multi-head attention is constructed. The experimental results show that the performance of speech recognition enhanced by accent information is further improved under the multi-task learning framework, and the word error rate is absolutely reduced by 0.4% and 1.1% on the Common Voice and AESRC2020 datasets, respectively. Comparing the RNNCTC and LSTM-CTC models, the word error rate of the BiLSTM-CTC-AM model in this paper is reduced by 11.23% and 3.68% to only 9.70%, which verifies the superiority of the model. In addition, for the correction of all types of errors, this paper’s English grammatical error automation is superior to the UIUC method, indicating that this paper’s method is effective. This paper provides a practical tool for automatic recognition of spoken language and automatic correction of grammatical errors in the teaching of spoken English in colleges and universities.
With the accelerating process of globalization, the overseas dissemination of Chinese culture has ushered in new opportunities and challenges. This paper takes TCM acupuncture in Chinese culture as an example to evaluate and analyze the effect and acceptance of overseas communication of Chinese culture. The entropy weightTOPSIS method is used to obtain the weights of the indicators of Chinese culture dissemination effect, and quantitative evaluation analysis is carried out. With the help of Qualitative Comparative Analysis (QCA) method, the consistency and coverage monitoring analysis of Chinese culture’s overseas communication effect continues. The results of the ranking of the evaluation indicators of the effect of Chinese culture dissemination overseas based on the weights are: cognitive indicators (54.03%) > behavioral indicators (31.1%) > attitudinal indicators (14.87%). And in the similarity analysis, the communication effect score of the nine content modules of Chinese medicine and acupuncture averaged 0.11, the overall overseas communication effect is not satisfactory, and it is still necessary to further improve the overseas communication effect of Chinese culture.
The economic and social environment is constantly changing, the government’s economic management functions are facing transformation, and the exploration and innovation of the construction of local government economic management performance system is necessary. This paper takes fairness and efficiency as the basic value orientation, selects key indicators from multiple dimensions, and constructs a set of scientific and feasible local government economic management performance evaluation indicators. Twenty provinces in China are selected as research objects, and the entropy method is adopted to determine the weights of each index, combined with the TOPSIS method to make a horizontal comparison of different provinces. And the kernel density estimation method and convergence model are used to analyze the dynamic evolution characteristics and convergence characteristics of the economic management performance level of the Chinese government. The experimental results show that although the average value of the Chinese government’s economic management performance composite score has increased by 0.118 during the period of 2016-2021, there are still some differences in the government’s economic management performance level in different provinces. Except for the Northeast region, all other regions in China have \(sigma\) convergence and conditional \(beta\) convergence. The research in this paper provides a scientific basis for the government to formulate targeted regional economic management strategies and helps to promote the coordinated development of regional economy.
Images play an important role in information communication and information preservation, which can meet the needs of the construction of visual learning resources in the education industry. This paper constructs a deep convolutional generative adversarial network model for text-generated images based on conditional enhancement and attention mechanism, which adopts a bidirectional long and short-term memory network to extract textual features, and enriches the feature information of the text through the conditional enhancement module. Subsequently, textual and visual features are fused and output in the generative adversarial network, and the detailed adjustment of the output features is accomplished based on the attention mechanism to generate educational visual image resources containing important features of textual descriptions. The text-to-generateimage method proposed in this paper obtained excellent IS scores on both CIFAR10 and CelebA datasets, with their mean values higher than 7. The visual learning resources, designed in conjunction with the content of the mathematics curriculum, help to enhance the multifaceted mathematical literacy and learning effectiveness of secondary school students, and have gained the approval of the majority of students, with an average satisfaction score of around 4 on the student questionnaire. The text-image generation method in this paper provides new ideas for the construction of visual learning resources for mathematics, which helps learners to better understand mathematics learning methods and concepts
With the continuous maturity of deep learning technology, its role in stage character design is becoming more and more important. The article proposes a deep neural network-based multi-view human tracking method for stage environment and designs the stage lighting control system. And on this basis, it designs an automatic stage lighting tracking system, including control and management module, actor identification and localization module, data processing module, and speed interpolation module, which facilitates the control of lighting on the stage. Finally, a series of experimental tests are conducted to verify the effectiveness of the method of this paper. The experimental results on simulated and real labeled datasets show that the binary cyclic code of this paper’s method can still achieve more than 91% recognition accuracy under 60% occlusion rate, which has a very good anti-occlusion performance. Without affecting the stage performance and viewing experience, this paper’s method solves the tracking instability problem caused by stage darkness and actor’s apparent similarity, which is highly feasible and has a wide range of application prospects in the stage performance industry.
With the rapid development of cloud computing technology, unified management of multi-cloud heterogeneous resources has become a key technology to improve resource utilization and system elasticity. Aiming at the complex problem of unified management of resource operation in multi-cloud heterogeneous environment, a multi-cloud heterogeneous resource unified management platform is built to realize the global view and unified scheduling of resources. Subsequently, a combined prediction model based on ARIMA-LSTM is proposed, which effectively solves the problem of load prediction accuracy that a single model cannot more accurately perform unified management of multi-cloud heterogeneous resources. At the resource scheduling level, a container scheduling strategy based on Kubernetes is designed, combined with an improved load scheduling algorithm (LSA) to dynamically optimize the container deployment location, and a horizontal elasticity scaling strategy based on deep reinforcement learning is implemented for autonomous decision making in unified management of multi-cloud heterogeneous resources. The results show that this paper’s method reduces up to 28.32% resource wastage and 50.75% normalized cost compared to existing resource scheduling algorithms, resulting in an average CPU utilization of 92.8389%, while there is no significant increase in the model’s response time. The results prove the effectiveness of the model in this paper in the unified management of multi-cloud heterogeneous resources, providing theoretical support and practical reference for the intelligent use of resources in complex environments.
Heterogeneous cloud infrastructures in cloud computing resource provisioning can improve the fault tolerance of cloud computing environments, but they also bring about difficulties that bring about cloud computing resource allocation. In order to enhance the efficiency of heterogeneous resource scheduling and allocation, this paper proposes a heterogeneous cloud resource scheduling algorithm based on the Improved Competitive Particle Swarm Algorithm (ICSO), which utilizes the chaos optimization strategy to initialize the particle swarm, and introduces Gaussian variants to update the victory particle positions to improve the diversity of the populations and to enhance the global searching ability. Simulation experiments of heterogeneous cloud resource scheduling are set up to explore the optimization effect of heterogeneous cloud resource scheduling of ICSO algorithm. Comparing the CSO algorithm and the ACO algorithm, the ICSO algorithm in this paper has a lower GD value and obtains a larger HV value in all 15 experimental data, and is able to search for the optimal solution for heterogeneous cloud resource scheduling in about 100 generations.
In the context of the digital era, the use of intelligent algorithms to improve production efficiency and decision support is receiving attention from many production enterprises. In this paper, an AttLR-LSTM-based time series model of production data is proposed based on time series data features, combined with LSTM network and attention mechanism to realize accurate prediction of key indexes of production devices, and an intelligent recommender system based on collaborative filtering algorithm is designed to improve the decision support capability and efficiency in the production process. In the comparison experiments with different machine learning models, the prediction effect of this paper’s method is improved by 88.91% and 60.92% compared with the LSTM with long-term time series data as input and the LSTM with short-term time series data as input, which fully proves the validity and stability of this paper’s method in the prediction of the operating state of production devices. Meanwhile, the real-time business indicator recommendation system designed in this paper not only has high satisfaction, but also receives unanimous praise for its accuracy and confidence.
With the continuous development of artificial intelligence technology, deep neural networks show great potential in the field of intelligent music creation. In this paper, we first extract the CQT and Meier spectral features of music, deform and fill the biphasic information by WaveNet decoder, and realize the overall style migration of emotional music. Then, we design a music emotion representation model that integrates the Plutchik and Thayer bi-emotion models and devise a fusion method for the bimodal emotion results, based on which rhythmic control and tonal conditions are introduced to generate music that contains multiple emotions. The model in this paper can effectively merge audio tracks, and the average style transformation intensity of music of the same style reaches 0.80 and above, and can accurately express negative and positive emotions and transform them into emotional music representations, obtaining a music quality score of 4.1. It adds a scientific supporting theory to the field of intelligent composition research.
The G218 Narathi-Balentai highway is exposed to the impact risk of avalanche loading. This paper explores the constructional characteristics, column materials and structural design of the control fence of this section of highway, simulates avalanche based on RAMMS-AVALANCHE model, analyzes the force situation of the fence under the impact of avalanche with different parameters, and provides relevant countermeasures for the structural arrangement of the control fence. The avalanche dynamic process is simulated by the tanα parameter graphing method and the probabilistic relationship graph between avalanche throw and fall. The finite element analysis model of different types of fences is established to simulate the force state of fences when the height of avalanche impact is 1m, 2m and 3m. Under the consideration of different working conditions, the displacements and stresses of different types of fences were calculated, and the force characteristics of the fences were analyzed. By analyzing and demonstrating the force under avalanche load of three types of fences, the force characteristics of different forms of fences under avalanche load are obtained, and finally the diversion tip wedge structure is adopted to provide reference for similar disaster prevention projects.
In the process of constructing a new type of power system, energy storage configuration plays an important role in supporting the stable operation of a new type of power system mainly based on new energy. This paper constructs an optimization model with the constraints and optimization objectives of the optimal configuration of the new power system. The improved MOPSO algorithm is proposed to be written in Matlab language for model solving. The standard test functions ZDT1-ZDT4 are selected as test examples to verify the effectiveness and performance advantages of the proposed algorithm. The improved MOPSO algorithm and the typical multi-objective algorithms NSGA-II and MOSPO are evaluated by the multi-objective algorithm evaluation index. The test results show that the improved MOPSO algorithm has the best overall performance, and the Pareto front solution is more uniformly distributed and more diversified. Taking the IEEE-34 node system with wind/light/diesel/storage islanded grid topology selected as an example, the improved MOPSO algorithm is used to design the energy storage network structure and improve the system stability. The optimal access locations of energy storage are found to be nodes 834, 860, and 836, and the multi-storage configuration scheme designed in this paper improves the voltage stability by 77.96%. The research results have important theoretical and engineering value for exploring the optimal configuration scheme of energy storage in distribution networks.
“Youth night school” is a mode of education and training that provides vocational and academic training during free time at night, and is an important way for young people in society to improve themselves. This paper discusses in detail the participating members and corresponding responsibilities in the “Youth Night School” in higher vocational colleges and universities, as well as its organizational framework model. The hypergraph neural network algorithm is used to capture complex relationships in educational data based on the existing “Youth Night School”. The mapping function is constructed by multilayer perceptron (MLP) to eliminate the information bias between the domains, so as to realize the information conversion between the domains. We also design a rating prediction and construct a course recommendation system for “Youth Night School”. Comprehensive above, the formation of higher vocational colleges and universities “youth night school” education model, the design of comparative experiments, application experiments to verify its effectiveness. The recommendation algorithm designed in this paper has a hit rate of up to 0.874 and a coverage rate of more than 95%, which can accurately and comprehensively recommend the courses of “Youth Night School” and improve the teaching effect.
Aiming at the main point of the traditional teaching mode in which the language ability cultivation and the Civic and Political education are separated, this study proposes a CD-CAT system for college English based on the blended teaching mode. It constructs a course Civic and Political objective system containing a three-dimensional dynamic objective matrix, and develops a dual-coordinate question bank system integrating linguistic knowledge points and Civic and Political elements. Intelligent algorithms such as Shannon entropy and KL information quantity are introduced to optimize the topic selection strategy, and a dynamic learning path planning model is established by combining Q learning. Under the condition of item parameter U(0.05,0.4), the cognitive model including basic knowledge, basic skills and cognitive process dimensions with a total of 22 attributes is constructed. Student A is selected for application case study. Overall, Student A has a better mastery of basic knowledge and basic skills, with 7 attributes fully mastered, but a poorer mastery of cognitive process attributes, with no attributes fully mastered and more than 50% of attributes in a state of no mastery.
Listening ability is the core part of English language application in practice, so the evaluation of its teaching effect and the optimization of teaching design are the focus of improving the quality of English teaching in colleges and universities. In this paper, the sophomore English majors in college I are selected as the research object, and the English listening teaching evaluation system is established through the form of questionnaire survey. Then a logistic regression analysis model is established, which is used as an analysis method of the effect of English listening teaching in colleges and universities. With the support of the logistic regression model, the evaluation model of English listening teaching effect in colleges and universities is proposed. Through the logistic regression analysis of multiple influencing factors of teaching effect, the column-line diagram model is constructed for the evaluation of teaching quality. In the correlation analysis between different influencing factors and teaching effect, the correlation coefficient between teaching effect and teaching content is the highest among the four influencing factors at 0.936, which is more significant. The study points out that English listening teaching in colleges and universities should pay attention to the design and arrangement of classroom teaching content, and promote the improvement of English listening teaching effect by setting reasonable teaching content.
The rapid development of new media technology has increased the complexity of predicting the communication effects of language and culture in Chinese international education. This paper combines the Necessary Condition Analysis (NCA) and Qualitative Comparative Analysis (QCA) methods to identify the necessary conditions and combinations of conditional factors that affect the dissemination effect of short videos on language and culture in Chinese international education. A temporal convolutional network (TCN) is constructed to realize the prediction of communication effects of short videos in the new media framework. A multilayer deep time convolutional extended residual network network structure (MDTCNet) is proposed to optimize the prediction accuracy with respect to the prediction lag of TCN. The results show that the condition of “content theme” simultaneously satisfies the efficiency measure d > 0.2, with a p-value of <0.05, and the consistency index is 0.848, close to 0.85, which is a necessary condition for the high-quality dissemination of short videos about language and culture in Chinese international education. The existence of three combinations of conditional factors has strong explanatory strength for the dissemination effect. The improved MDTCNet model propagates heat prediction error of no more than 0.1 with an R² score of 0.88 for its prediction. The value is closer to the real value. Using the MDTCNet model to process the short video related condition data can effectively improve the prediction accuracy of the dissemination effect of language and culture short videos in Chinese international education.
As an important data of annual operation and production overview and financial situation of listed companies, the analysis of their text sentiment has an important application value in financial risk identification. In this paper, the financial reports of listed companies are taken as the research object, and TF-IDF is used to extract the structured, data-oriented and visualized information in the text. Then, using N-Gram model, the text information is processed by word vector. Subsequently, the improved sentiment co-occurrence algorithm is used to extract and expand the general sentiment lexicon to construct the financial report sentiment lexicon. Meanwhile, the SEN-TF-IDF algorithm is introduced to build the annual report sentiment dataset. The construction and improvement of the financial report sentiment dictionary is completed through the extraction of financial report text information and the learning of word vectorized representation. Comparing with the general sentiment dictionary, the financial report sentiment dictionary has the highest F1 value of 0.872 under the research threshold of 0.6, which demonstrates its superiority in analyzing and mining the sentiment tendency in the field of financial reporting.
This paper constructs an efficient computational framework for style migration and melody generation. A decoding architecture from MIDI audio to CQT spectrogram is proposed based on the diffusion model, and a onedimensional U-Net structure is introduced to optimize the noise prediction process and improve the inference efficiency of the traditional diffusion model. Utilize VAE to map high-dimensional audio data to low-dimensional space to save computational cost. Design the conditional diffusion model based on cross-attention mechanism to realize high-fidelity migration of music styles. Propose a melody generation method based on LabVIEW random numbers to balance creative inspiration and melodic structural integrity. The model of this paper is applied to the practice of music style migration and melody generation to verify the practical value of the model. The results show that the quality of CQT spectrograms generated by the model in this paper is more than 80%, and the style migration rate is more than 90%. Using the piano roll window to visualize the music melody generated after style migration can enhance the melody intuition and the flexibility of segmentation adjustment. In the subjective evaluation, the generated melodies of this paper’s model get the best results in two dimensions: coherence and emotional expression, which can effectively realize the music style migration and high-quality melody generation.
This study takes Fujian Putian mountain settlement as the object, integrates the graph theory algorithm and spatial syntax analysis, constructs a multi-scale quantitative index system, and systematically researches the topology and functional attributes of the spatial form of the settlement by combining with GIS technology. By integrating multi-source data and extracting 782 samples of settlements, five types of quantitative indexes, namely, aspect ratio λ, modified shape index S, compactness W, average width of edge space L and dispersion K, are proposed, which are combined with the parameters of spatial syntax, such as integration and comprehensibility, to analyze the law of spatial differentiation of settlements. The empirical analysis shows that: the foothills and riverbanks type of clusters have the mean value of shape index up to 2.89 (S≥2), and the aspect ratio λ=2.39, which shows a significant banding feature, and the river valley and flat dam type of clusters have a larger area, such as 188,899.85m² in Village V, but the shape index is medium, S=1.54. The mountain type of clusters have the lowest integration degree, with the mean value of 0.618, and the degree of spatial discretization is high. The study was visualized by GIS with linear fitting, and the goodness of fit R² ≥ 0.98 revealed the strong correlation between geographic constraints and colony shape, providing data-driven theoretical support for the protection and planning of mountainous colonies.
As the main transmission equipment of electric energy, cable is one of the key electric facilities to build stable and efficient power network. In recent years, ± 800kV high-voltage DC cable buffer layer erosion accidents, this paper launches the real-time monitoring research on the status of the cable. By analyzing the structure of the cable buffer layer and fault characteristics, the research foundation is laid. Then, the linear tensile test of the strain relationship between the high-voltage DC cable and the sensing fiber, as well as theoretical analysis, to establish the strain relationship between the high-voltage DC cable and the sensing fiber. Then the strain measured by the distributed fiber optic sensing technology is used to calculate the strain of the HVDC cable body and realize the monitoring of the HVDC cable. At the same time, the finite element method is used to establish the cable monitoring model and complete the strain calculation. In the K-fold cross validation, the average accuracy of the cable monitoring model based on distributed fiber optic sensing is 92.4% and relatively stable, with strong generalization ability as well as stability.
This paper constructs a pyramid structure hierarchical model through fast non-dominated sorting and adaptation grading, realizes intra-layer competition and collaboration, and finds the optimal frontier. Combining entropy weight method and fuzzy comprehensive evaluation, the influence weights of external environment and individual ability are quantified, and a multi-objective optimization model of higher education talent cultivation path is established. The improved ant colony algorithm is introduced to enhance the global search capability of multi-objective optimization by using the state transfer rule and pheromone updating mechanism. Through the practice of higher education talent cultivation path optimization, as well as multi-algorithm comparison experiments, the optimization effectiveness of this paper’s method is verified. The results show that: using the method of this paper to determine the optimization of higher education talent cultivation path is divided into 3 stages, and the probability of achieving ability cultivation in each stage is 0.4, 0.3, 0.3, respectively. The method of this paper takes between 150-200ms to run in 5 test functions, and only needs a small number of iterations to get a stable fitness value. Using the method of this paper to continuously optimize the training path, the students’ employment rate, the rate of obtaining professional-related certificates, and the enterprise satisfaction rate are increased by 14%, 36%, and 11%, respectively.
With the rapid development of the Internet, traditional teaching methods have been unable to meet the learning needs of college teachers and students. First, we use network crawler technology to collect research data, complete data preprocessing work through a series of operations such as word splitting, deactivation of words, feature extraction, etc., and input the processed data into polynomial plain Bayesian classifier for training to realize the classification and analysis of music emotion features. On this premise, with the help of similarity algorithm and K nearest neighbor algorithm, the music course content recommendation algorithm is constructed. With the support of this paper’s algorithm and related development software, the design of music course content recommendation system in colleges and universities is completed, and the system is empirically analyzed. Compared with other systems, the real-time update delay and real-time recommendation delay of this paper’s system are shorter, the update delay is less than 1000ms, and the corresponding recommendation delay is less than 500, which verifies that this paper’s system has excellent operational performance, can bring students and teachers a comfortable experience, and promote the development of intelligent music teaching in colleges and universities.
This paper takes Marxist philosophy as the theoretical framework and combines the method of multiple regression analysis to explore its multidimensional role mechanism in ideological and political education. Taking the effect of ideological and political education as the dependent variable, and the three dimensions of theory arming, practice nurturing and culture leading as the independent variables, a multiple regression model is constructed to verify the six relevant hypotheses proposed in this paper. The empirical analysis shows that Marxist philosophy positively influences ideological and political education through the triple path of theoretical armament, practical nurturing and cultural leadership. The coefficients of influence of core elements such as participation in practical activities and campus culture construction on education effect are 0.236 and 0.176 respectively, constituting the main framework of the action mechanism. The study suggests to improve the effectiveness of the role from three aspects: attaching importance to the theme of education, combining practical education, and optimizing the evaluation system.
Smart city is developing at a rapid speed, which will make a huge change in the production mode and industry, and “smart” design and construction in environmental art design will be the future development trend. This paper takes the construction of park green space as a research case, establishes a multi-objective optimization model based on genetic algorithm by combining the characteristics of the research area, and plans 33 candidate park green spaces in the area with low level of park green space service by combining the information of urban land use planning. In view of the shortcomings of traditional genetic algorithm, which is easy to fall into local optimization, simulated annealing algorithm is introduced to improve the standard genetic algorithm by composing hybrid geneticsimulated annealing (GA-SA) algorithm. The results show that the convergence speed of the hybrid geneticsimulated annealing algorithm is significantly improved, which is stronger than the simple genetic algorithm. The optimization model can ensure the goal of planning the minimum green area of the park, and the spatial distribution separation is kept in the range of 0.577 to 0.596, which has a better design. The research method of this paper is of reference and guidance to the environmental design and planning of the smart city.
Red culture brings a new “formula” for the reform and innovation of ideological education in colleges and universities, which can promote the optimization and upgrading of the presentation form and teaching method of ideological education in colleges and universities. The article establishes a red culture resource database for the Civic and Political Education in colleges and universities with B/S structure, and categorizes the red culture content through red culture data collection. Then, the LDA model and Word2Vec model are combined to design the TLAD- 2Vec model to analyze the trend of theme evolution of red culture inheritance in ideological and political education in colleges and universities. Finally, the degree of understanding and the dissemination mode of college students under the red cultural heritage were statistically analyzed. The results show that under different time windows, Revolutionary Retrospective (Topic1), Red Events (Topic2) and Red Activities (Topic7) are stable and popular themes, which are highly concerned by the Civic and Political Education in colleges and universities. There are some differences in the degree of understanding of red cultural heritage among students of different genders, grades and majors, and there is a lack of intelligent communication paths for red cultural heritage. Therefore, in the era of artificial intelligence, the ideological education of colleges and universities and the inheritance of red culture need to pay attention to the construction of digital platforms, relying on a perfect regulatory mechanism to ensure that the red culture can be inherited and continued.
In order to permanently improve the level of national economic and social development and international competitiveness, talent cultivation is one of the four basic functions of colleges and universities, and the cultivation of innovative and entrepreneurial talents adapted to the requirements of the times will become a major mission for Chinese colleges and universities to promote the realization of the innovation-driven strategy. This paper uses the information gain method, optimizes and improves the decision tree model, uses the model to analyze the characteristics of the collected student data, and calculates the factors affecting the innovation and entrepreneurship effect of differentiated teaching. For the influence factor of whether it is a high-tech field or not, the first influence is the national scholarship, with a Gini coefficient of 0.589; the second influence is the participation in scientific research activities and academic performance, with Gini indexes of 0.545 and 0.546, respectively; and the third influence is the academic qualification and entrepreneurial field, with Gini indexes of 0.469 and 0.436, respectively. assessing the innovation and entrepreneurship and scientific research ability of the college students level, a total of 408 people are interested in scientific research, accounting for 69.74%, the number of people who have been authorized by the patent is 128, accounting for 21.88%, which is closely related to better academic performance, and a few of the subject students have scientific research ability.
In this paper, Japanese syntactic analysis and text embellishment techniques are designed to improve students’ Japanese writing skills. Since Japanese dependency parsing is an important part of Japanese syntactic analysis. In this regard, this paper adopts the SVM model to generate a classifier using the labeled corpus as a way to determine whether there is a dependency relationship between two text sections. In order to improve the parsing accuracy of the SVM model, this paper proposes a Japanese dependency parsing method based on NN-LSVM pruning of a large-scale training corpus for dependency parsing on the basis of SVM. After that, a text touch-up technique based on syntactic structure is designed, which introduces a contrastive representation learning method and pushes the model to deeply understand the modeling relationship between semantic and syntactic structural information by adjusting the loss function to further mine more appropriate syntactic structures and expressions in order to improve the effect of the text touch-up technique. After verifying that the two techniques are feasible, this paper designs a practical task for teaching Japanese writing. During the practice, the Japanese writing scores of the experimental class using the NN-LSVM model and the language generation model designed in this paper for writing tutoring improved significantly (P<0.05), and there was no significant change in the control class. It shows that the technique in this paper can have the effect of promoting students' Japanese writing ability.
Farming culture is an important support for current rural revitalization. The inheritance of farming culture can drive the new development and cultural prosperity of the countryside. In this paper, we establish a model of farming culture resource-task allocation problem, and use the combination of column enumeration method and pairwise test method to solve the linear planning model of farming culture resource allocation. In order to reduce the amount of computation, an improved genetic algorithm incorporating a learning mechanism is designed. The algorithm uses greedy operator to encode the chromosomes, and considers a single chromosome as an orderly arrangement of several villages, and finally determines the overall allocation plan by sequentially allocating farming cultural resources to villages. The improved genetic algorithm incorporating the learning mechanism is used to solve the linear planning model of farming culture resource allocation to find the allocation efficiency of farming culture resources before and after resource allocation in 2024. The combination of each key resource input after the optimization process according to the linear planning model of optimal resource allocation is (17.5263, 23.6659, 23.2143, 24.3662, 23.0045, 23.8596, 24.6365, 24.9631). The resource allocation capacity of farming culture is 85.0027. The enhancement of resource allocation efficiency of farming culture is more conducive to the development of rural revitalization.
The data volume of high-definition (HD) photographic images is proliferating, which puts forward higher requirements for efficient compression and high-quality recovery techniques, for which an innovative technique for all-media converged HD image compression and recovery based on improved multiple-external optimize algorithm is proposed. By improving the traditional genetic algorithm to acquire more advanced computational precision and faster convergence speed, the improved arithmetic is applied to optimizing the weightings and value range of the BP neuro mesh to enhance the generalization perform of the neuro mesh. And the combined pattern is applied to the HD camera image compression and recovery under the all-media convergence, which calculates and retains the image compression and recovery data, and reconstructs the HD image from the data blocks. The average GD and IGD of this paper’s method are 0.0312 and 0.0703 for image compression and recovery strategy optimization, which are more advanced than the comparison ways. With the improvement of the degree of graphic compression, the image compression evaluation indexes of the method are improved to different degrees. For image 1, the PSNR of image compression of this method is 30.45db and MS-SSIM is 0.91, which is better than the pass comparison method. In five types of image recovery tasks, the PSNR of this paper’s model is between 31.69 and 34.76db, and the SSIM is between 0.846 and 0.924, and the image recovery tasks can be accomplished excellently.
In recent years, with the rapid development of the Internet, the e-commerce platform has become an indispensable part of people’s daily life, which can generate personalized recommendations for users to meet their daily life purchase needs. The research adopts the MCTS method combining deep learning and Monte Carlo tree search algorithm, fuses the strategy network, value network and risk network with the strategy value risk network, and combines the improved MCTS method to construct a self-learning strategy value risk network applied to the ecommerce platform recommendation system. The improved MCTS method is verified through experiments, and the improved MCTS method has high comprehensive performance, compares the recommendation effect of the selflearning strategy value risk network algorithm with the UCT algorithm, and utilizes the hybrid reward function to achieve the balance between the accuracy and diversity of recommended products. The improved MCTS method is tested in terms of coverage, diversity and user satisfaction, and the performance is good, with the highest coverage of 0.91 and the highest diversity of 0.9941. In this paper, the system realizes the diversified recommendation of products to meet the user’s need for recommender systems.
Fluoride contamination in water bodies is one of the serious environmental problems, and groundwater fluoride contamination is a constraint affecting the use of groundwater and even a threat to human health. Therefore, it is necessary to find widely applied and cost-effective methods for fluoride removal from water bodies. In this paper, we express the adsorption kinetics by constructing the reaction rate equation of the adsorption process and investigate the adsorption mechanism in the adsorption process by quasi-primary and quasi-secondary kinetic models. Langmuir isothermal and Freundlich isothermal models were set up sequentially to design the intermittent adsorption test. X-ray diffraction analysis and Fourier transform-infrared spectroscopy were used to calculate the kinetic and microscopic mechanisms of fluoride ions on the surface of metal composites. The fit R² of the proposed secondary kinetics at reagent concentrations of 10 mg/L, 30 mg/L and 100 mg/L were all 0.9999, and the fit of the proposed secondary kinetics model was much higher than that of the proposed primary kinetics model. A new peak was observed at 702.4553 eV for activated alumina (GAA) C, indicating the successful loading of fluoride species onto the GAA adsorbent.
In this paper, we mined the financial data of several enterprises in CSMAR database and constructed an asset pricing model based on level, slope, and curvature (LSC). By combing the characteristics of data assets and their value drivers, the key factors affecting asset pricing are extracted with the help of principal component analysis. Then the relationship between corporate credit risk and asset excess return is analyzed by using Fama-Macbeth one-factor regression method. And combined with GRS and other tests, the explanatory power of asset pricing on returns under different models is comparatively assessed. The credit risk coefficients of the models in the FamaMacbeth test range from -0.473 to -0.115, and there is a significant negative correlation between them and the portfolio excess returns. There are monotonically increasing or decreasing trends in indicators such as expected excess return and average excess return. And the predicted return of the asset pricing method in this paper is closer to the real return, with the same upward trend. The first three components obtained by principal component analysis explain 90.3%, 3.7%, and 1.4% of the portfolio, respectively. The GRS statistics of the LSC pricing model in this paper are lower than the baseline model by 0.286 to 0.930, which has stronger pricing explanatory power. This study expands the theoretical framework of data asset pricing, which is of value in the marketized allocation of enterprise data assets in the era of digital economy.
A music teaching system based on virtual reality technology can virtualize teacher resources and teaching environment resources. Through the unique immersion, interactivity and conceptualization of virtual reality technology to create the environment needed for music learning, thus making the use of resources more convenient. This paper constructs a music teaching system that includes teaching content and teaching form, music teaching system, and teaching evaluation system. Among them, the music teaching system allows online instruction, virtual environment learning, and human-computer interaction. In order to create a good simulation environment, lightweight deep reinforcement learning method is proposed for the problem of high requirements of deep reinforcement learning training resources in virtual resources, and a deep separable convolutional deep reinforcement learning model is designed. Compared with the deep reinforcement learning model, this model can obtain a higher reward value when the learning rates are all 0.001, and is more suitable for the construction of the simulation environment of the music teaching system. After the teaching practice for freshmen majoring in music in S school, the comprehensive evaluation score of teaching effect is 84.29, which indicates that the teaching system designed in this paper can ensure the quality of music teaching.
In this paper, in the planning stage of BIPVT building, the influence of light changes on the temperature of PV panels is considered, and the maximum light radiation of PV panels with different tilt angles is set to determine the optimal installation tilt angle. The photovoltaic part, light part, and photovoltaic photothermal integrated water circulation system are designed in stages. Introduce IoT technology into the BIPVT building, connect the BIPVT building to the Home Assistant system, and design the water circulation control system, intelligent control and remote control, NFC automation control, voice control and other control methods. Considering that the long-term operation of the distribution network of the building system leads to the heating of wires and losses, the Kruskal algorithm is used to solve the mathematical model with the minimization of line losses as the objective function and the improvement of voltage quality as the goal. In the empirical analysis, after the reconfiguration of the distribution network by Kruskal algorithm, the node voltage is increased by 1.25% and the loss is reduced by 15.30%, which proves that the Kruskal algorithm can effectively reduce the loss of the distribution network of the building system and improve the node voltage.In the characterization and testing of the BIPV/T building intelligent system, it is found that the BIPV/T building intelligent system based on the Internet of Things (IoT) is able to effectively improve the indoor thermal environment.
With the deepening of the new curriculum reform, physical education is receiving more and more attention from the state and schools. Aiming at the learning data of physical education students, a physical education learning behavior recognition model based on Adaboost-BP neural network is proposed. The BP neural network is used as a weak predictor in MapReduce environment, and a strong predictor is constructed by the Adaboost algorithm combining the results of the weak predictor to recognize the physical education learning behavior. On this basis, the physical education teaching strategy is adjusted, and physical education stratified teaching based on the Adaboost-BP model is proposed, and the teaching experiment is implemented to evaluate its application effect.The Adaboost-BP model has a good effect of recognizing physical education learning behaviors, and the average error of the recognition error has an absolute value of 0.029 and a relative value of 3.79%, which is smaller than the comparative method.The model will The model identifies the physical education learning behaviors of 100 students into three categories: “excellent”, “moderate” and “poor”. After the adjustment of teaching strategies, the three categories of students were improved in all indicators of physical fitness, and in terms of course enjoyment, motivation, skill mastery, course content rationality, learning experience, etc., the Adaboost-BP model can realize the stratification of students’ behaviors, and then guide the adjustment of learning behaviors and physical education courses, and promote the improvement of physical education teaching quality.
The rural social pension replacement rate reflects the level of social pension protection for individuals by the rural social pension insurance pillar, and is a relative indicator capable of measuring the level of pension protection by inter-period comparison under different levels of economic development. Aiming at enhancing the sustainable development strategy of rural cultural pension system, this paper establishes a sustainable development index system, uses Random Forest, Logistic Regression and Bayes as the base classifiers, proposes an integrated learning model based on the Stacking integration strategy, and Support Vector Machines as the metaclassifiers for parameter optimization, to assess the sustainable development of the pension system. Secondly, SHAP is introduced to explain the influencing factors of pension system sustainability found by the model. According to the empirical analysis and visualization analysis, the Stacking integration method is better than other single learner models in terms of accuracy, checking rate, AUC value, etc., except for the true instance rate which is lower than random forest, with values of 0.953, 0.877, 0.972, 0.949, respectively, indicating that Stacking integration can be better applied to the pension system sustainability in the assessment. Integrating the influencing factors, it is found that the development speed of the system, the economic affordability at all levels, the reasonableness of the institutional setup, and the efficiency of the management service are the main influencing factors for the sustainable development of the pension system. Finally, recommendations are made to optimize the demographic structure, improve the quality of the population, and active aging in order to cope with the risk of population aging and unsustainability of rural pensions.
In the era of “Artificial Intelligence”, the introduction of multimodal information fusion into vocabulary teaching is an important breakthrough in the reform of university English teaching in colleges and universities. In this paper, multimodal data are extracted from text, pictures and other domains, and the information of different modal data is fused through heterogeneous data fusion. Add positional coding and word vector embedding coding fusion operations in the information initialization stage, extract image features and text features, and send the information to the lexical model for fusion coding, use Transformer learning to decode the source utterance into the target utterance through the decoder, and use the Glove word vector model to realize the knowledge point vectorization operation in the knowledge point embedding layer. Design empirical analysis experiments to study the application effect of multimodal information fusion in English vocabulary teaching. The significance levels of the two classes of subjects in contextual discrimination and word selection by looking at pictures are 0.028 and 0.035 respectively, with the significance level less than 0.05, which indicates that the vocabulary learning method using multimodal information fusion algorithm is more effective in memorizing the words than the traditional mode. The network security mechanism is established, and the multimodal heterogeneous data operation security is evaluated through simulation experiments. The method in this paper can guarantee the data processing volume of 2~2.1Mb/s, and has high storage efficiency.
In traditional teaching, it is time-consuming and labor-intensive to ensure the teaching quality only through teachers’ observation of students’ behavioral status. Therefore, deep learning algorithms and image processing algorithms are used to construct an intelligent assisted teaching system, so as to realize classroom target detection, interactive behavior recognition and classification. By analyzing students’ interactive behaviors and monitoring the classroom status in real time, the quality of education and teaching is further improved. Taking 14 examples of Civics and Political Science classes in a university as research samples for empirical analysis, it can be seen that the accuracy rate of the algorithm proposed in this paper for detecting standing behavior reaches 84%, and the accuracy rate of the overall behavior detection system is 81.4%, which is a good effect. Teacher-student interaction behavior is most often characterized by “instruction-passive response”. Student-teacher interaction behavior “Passive Response-Lecture” appeared most frequently. The student-student interaction behavior is most often “debriefing-debriefing”.
Based on the social network analysis method SNA and expanding gravity model, this study explores the network structure characteristics and influencing factors of agricultural trade between China and SCO member countries in the Shanghai Cooperation Organization (SCO) from the perspective of international trade networks. Through the construction of the global agricultural trade network, it is found that from 2008 to 2024, the density of SCO regional trade network increased from 0.4834 to 0.6294, indicating that the trade links between member countries were significantly enhanced, and the intermediate central potential index decreased from 35.23% to 27.42%, reflecting the evolution of the trade network from “single-core” to “multi-core” structure. The regression results of the extended gravity model show that China’s economic scale β=0.384 and the economic level of SCO countries β=0.378 have a significant positive effect on agricultural exports, while geographic distance β=-0.843 shows an inhibitory effect, and institutional factors such as common language also play a potential role. The endogeneity test and spatial correlation analysis further verify the robustness of the model. The article’s study of agricultural trade in the SCO is beneficial to China’s food production storage in order to dynamically regulate the national strategy of balancing food supply and demand, and to ensure the quality and safety of agricultural products and security of supply.
This paper proposes a music composition model based on neural network optimization algorithm, which integrates genetic algorithm and improved BP neural network to realize the intelligence and efficiency of music composition. The problem of insufficient diversity of traditional methods is solved by a multidimensional coding strategy (12-bit octal, quadratic and octal coding for scales, registers and beats, respectively), combined with genetic operators to dynamically optimize melodic segments. For polyphonic music counterpoint vocal part generation, the elastic gradient descent method is introduced to improve the BP network, which effectively overcomes the defects of the traditional algorithm that is slow to converge and prone to trap local extremes. The experiments use LakhMIDI and MUT datasets, and compare with RNN, LSTM, Seq2Seq and other models, and the results show that the similarity between the generated music and the database waveforms reaches 86.74%, and the chord rule matching is significantly consistent. In the manual evaluation, the model is fully ahead in fluency of 4.23, consistency of 4.49, and rhythm of 4.57, with an average score of 4.34. The evaluation of the music theory features shows that the note repetition degree is 18.77% and the style matching degree is 91.48%, which are better than the benchmark model. The study shows that the model significantly improves the automation level and artistry of music generation by synergistically optimizing the coding strategy and network structure.
This study proposes a cross-cultural semantic association computational model for German literary translation, aiming to address the shortcomings of traditional machine translation in terms of cultural differences and semantic complexity. By fusing RNN and Self-Attention Network SAN encoder, the semantic associations of German words, sentences and paragraphs are quantified layer by layer, and a cross-language semantic ontology structure model is constructed to realize accurate semantic mapping between German and Chinese. The hybrid translation model is further designed to combine four pre-trained encoders with Marian decoder to optimize the translation generation in literary context. The experiments are based on the German-Chinese parallel corpus of WMT2018 and WMT2022.In the German-Chinese translation task, the correlation misalignment rate of this paper’s model is only 4.82%, which is 49.05% lower than that of the baseline model, QE-BERT.The BLEU value is up to 26.21, which is significantly better than that of the comparison model, e.g., 20.05 for Gen-Det.In addition, the model performs stably in the multi-language task. The highest BLEU value of 31.86 in German-English language translation and content word ratio experiments show its robustness to complex semantic elements. The study shows that cross-cultural semantic association computation and hybrid model design can effectively improve the accuracy and cultural appropriateness of literary translation
This study explores the history of multi-ethnic interaction and the path of cultural integration from the perspective of national unity education, combining association rule mining and questionnaire survey. Based on Apriori algorithm for association term analysis, text classification is carried out using plain Bayesian network. Based on the improved Apriori text mining model, combined with the field questionnaire survey data and the historical ethnic interaction event database, the strong correlation rules such as “traditional festival participation → crossethnic dinner” (confidence 83.1%) and “keeping promises → employment mutual assistance” (78.3%) were excavated, and it was found that the average confidence of food culture rules (0.79) was significantly higher than that of religious ritual rules (0.64), revealing the important role of material and cultural exchange in ethnic integration. Based on the comparative experimental results, the detection accuracy of the improved Apriori algorithm is verified. The data of 790 questionnaires show that the awareness of “religious belief” and “customs” of various ethnic groups constitutes the most significant difference dimension, and the average awareness of the difference in “customs and habits” reaches 60.3%. Ethnic interaction attitudes show a high degree of consistency, with more than 95% of the respondents taking honesty and reliability as the main preferred criteria for choosing friends. Accordingly, this paper proposes a third-order ethnic interaction history and cultural integration path, which provides a methodological support with both spatio-temporal precision and cultural depth for multi-ethnic interaction in the new era.
Cloud computing is a kind of service system mainly controlled by cloud data centers, and the increasing scale of information transmission puts forward higher requirements on its scheduling ability. This paper takes rationalization of resource scheduling as the research objective and launches the research on cloud computing network load imbalance problem. By analyzing the network resource load based on processing time, a cloud computing network load balancing model is constructed. It also proposes a dynamic load balancing strategy for cloud computing network. The strategy utilizes the distributed computing and storage capabilities of the cloud computing platform to reasonably migrate virtual machines online. In this way, it ensures that the load of each server tends to be balanced, so as to realize the dynamic balance and control of cloud computing network load. Under a variety of experimental environments, the model proposed in this paper not only optimizes the average system response time by more than 30%, but also tends to be smoother. It shows that the model can improve the effectiveness of the data analysis problem in the communication process, and then optimize the cloud computing network load balancing.
Finding a teaching path that can correctly and effectively improve students’ ideological quality is the top priority of the current model of large ideological education. Based on the current content of the objectives of students’ moral education and the characteristics of students’ ideological quality performance within the school, this paper puts forward the evaluation system of students’ ideological quality consisting of four first-level indexes: ideological and political quality, moral quality, legal and disciplinary quality, and physical and mental quality. The weight modeling method combining hierarchical analysis and Delphi method is used as the indicator assignment method of the evaluation system, and the structural equation modeling method is used as the evaluation and analysis method at the same time. In order to verify the structural validity of the proposed evaluation indicators of students’ ideological quality, eight research hypotheses are proposed and a standardized path model is constructed by using structural equation modeling method based on the contents of each first-level and second-level indicator. The standardized path coefficients (F) of the influencing factors of students’ ideological quality are basically above 0.5, which are supported by the structural equation model, indicating that ideology and politics, moral behavior, awareness of law and discipline as well as physical and mental health are the effective paths to assist in improving the ideological quality of students.
“Dual-teacher” teachers have become the focus of teacher training in the integration of industry and education because of their ability to teach both theory and practice. Based on the research perspective of students’ experience, this paper preliminarily constructs an assessment system for the quality of “dual-teacher” teacher training, which contains 5 primary indicators and 33 secondary indicators. In order to further rationalize the structure and content of the assessment system, an exploratory factor analysis method is used to reconstruct the assessment system. Finally, the assessment system of teacher training quality is obtained, which contains 6 first-level indicators and 28 second-level indicators. At the same time, the hierarchical analysis method was chosen as the assignment method for the indicators of the assessment system, and the fuzzy comprehensive evaluation method was used to obtain the objective scoring performance. The comprehensive cloud method is used to calculate the cloud characteristic parameters of each index, and the evaluation cloud diagram is drawn to obtain the evaluation grade, so as to construct the cloud model of teacher training quality evaluation. The judgment matrices of the constructed teacher training quality evaluation system for each level of indicators satisfy CR<0.1, which meets the requirements of objective and fair assessment of teacher training quality.
In this paper, we propose a topology optimization method based on Generative Adversarial Networks (GANs), which considers a two-dimensional topology as an image generation problem. The quality of the generated image is improved by a weighted loss function of the adversarial loss and the mean square error. Analyze the parametric constraint solving method, describe the geometric elements and their constraint relationships through geometric constraint graph (GCG), define the concepts of degrees of freedom and constraints, classify the constraint problems, and clarify the evaluation criteria of the algorithms. Analyze the generative graphic design process and emphasize the central role of algorithms in graphic generation. Verify the visual quality and creative advantages of the generated graphics of this paper’s method by means of digital graphic design practice and comparative evaluation of effects. The results show that the overall visual effect of the generated graphics of this paper’s method has an aesthetic score between 2 and 5. The scores are higher than those of the comparison method in the seven indicators of the detailed layout performance of the generated graphics. When the embedded coded information reaches 205000 bits, the average values of PSNR, SSIM, and LPIPS are 26.20334, 0.98112, and 0.00424, respectively, with good quality of visual perception. And the generated graphs are more non-orderly and have excellent creative effect.
This paper defines the knowledge tracking task based on a computational framework, and portrays the evolution law of students’ Civics knowledge mastery state by introducing the knowledge point relationship graph and forgetting factor analysis. Aiming at the antecedent-successor relationship of Civics education knowledge points, a knowledge graph embedding method based on RotatE model is proposed, incorporating a type-aware mechanism to enhance semantic smoothness. The fine-grained matrix embedding technique is introduced to explore the implicit correlation features between exercises and knowledge points, which further improves the prediction effect of the Civic and Political Education knowledge tracking model. The application effect of the constructed model is examined through multi-group experiments. The results show that the predictive performance of this paper’s model for question-answering situation reaches 87.3% and 86.9% in the two indicators of ACC and AUC. Embedded composite features of this paper’s model predicts the answering situation AUC index is 0.85. This paper’s model can well classify the cognitive hierarchy of students’ knowledge mastery and accurately analyze the average knowledge mastery of the students in the three sections of high school and low school, so as to improve the accuracy rate of the recommendation of knowledge mapping resources.
The study was conducted to explore the effects of atmospheric pollutants on allergic skin diseases, combining principal component analysis and multiple linear regression modeling to statistically analyze the data of atmospheric pollutants (PM2.5, PM10, etc.) and outpatient cases of allergic skin diseases in hospitals in Nanchong City from 2020 to 2024. The main components of air pollutants were extracted by dimensionality reduction using principal component analysis to solve the problem of multicollinearity among variables. Regression models were also constructed to analyze the association between principal components and the incidence of allergic skin diseases. The results showed that the principal component analysis extracted three principal components in the atmospheric pollutants with a cumulative variance contribution of 91.97%. The annual average concentrations of the atmospheric pollutants PM2.5, PM10, NO₂, SO₂, CO, and O₃ were 31.267 µg/m³, 51.109 µg/m³, and 24.252 µg/m³, respectively, from 2020 to 2024, 7.765 µg/m³, 0.951 mg/m³, and 131.452 µg/m³. The regression model showed that a 1-unit increase in atmospheric CO concentration was associated with a significant increase in the risk of allergic skin visits by 6.22. The regression model provided a good fit with errors between the predicted and true values of the number of visits for urticaria, eczema, and contact dermatitis in 2 general hospitals ranging between 0 and 1. The study confirmed that atmospheric oxidizing pollutants are the main environmental risk factors for allergic skin diseases in Nanchong City.
In this paper, a multimodal joint analysis method based on frequency domain feature extraction and deep learning is proposed. Firstly, frequency domain decomposition and threshold denoising of video frames are performed using wavelet transform to improve the image characterization ability by retaining low-frequency key information and high-frequency detailed features. Second, the RNN model is improved by combining the multiplepate notice machine-made to realize the emotion-semanteme fusion across visual-text modalities. Finally, the probabilistic clustering of communication sequences based on the GMM pattern is engaged in analysis the spatiotemporal evolution pattern of opinion diffusion. The test consequences indicate that the proposed method realize an image extraction precision of 92.59% on the VOT-2024 dataset and an F1 value of 84.29% for RNN-AM in the CMU-MOSI sentiment analysis task, which outperforms existing mainstream models. When applied to the COVIDHATE dataset, it successfully discovers the sentiment relevance of video content and captures the 48-hour intervention window and 7-day decay cycle of video dissemination, indicating that online public opinion intervention behaviors need to be carried out within 48 hours in order to achieve better results.
This paper proposes an efficient attribute approximation algorithm based on partition method. Through the predefined attribute order relationship, the positive region of decision table is decomposed into multiple equivalence classes, combined with the fast sorting method to reduce the computational complexity and realize the efficient attribute approximation. The knowledge structure tree model is constructed, and the core keyword similarity calculation and subtree clustering methods are integrated to obtain the knowledge point aggregation relevance and dynamically aggregate the cross-curricular knowledge points of Civic and Political Education. A collaborative filtering recommendation model based on knowledge association is introduced, combining the TF-IDF algorithm and user similarity measure to optimize the prediction accuracy of resource scores and realize personalized recommendation of resources. The method of this paper is applied to the knowledge association mining of Civics and Political Science courses in colleges and universities, and the optimization of resource recommendation realizes the planning and guidance of students’ learning path. The study shows that the method of this paper can effectively mine the knowledge point association and calculate the aggregated correlation degree, and the aggregated correlation degree of the three main Civic and Political Science courses is more than 0.75, 0.85, and 0.60, respectively. The maximum RMSE value of the recommendation model is 2.03563, the maximum MAE result is 1.50122, and the accuracy of the score prediction is better than the comparison method.
This study proposes a method for constructing and analyzing the knowledge graph of English learners in colleges and universities based on the local linear embedding LLE algorithm, which optimizes personalized learning support through dynamic characterization and cross-domain knowledge migration. The dynamic knowledge graph covering 9673 nodes is constructed with the core literacy of English discipline as the orientation, and the adjacency matrix (dimension 9673×9673) and 512-dimensional feature vector are generated using the feedback data of exercises. The joint knowledge migration method HLLEJKT is proposed to achieve cross-linguistic representation space alignment through kernelization extension and label optimization, and achieves 75.13% and 85.75% accuracy in XNLI and STS 2020 benchmark tasks, respectively, which is an improvement of 55.69 and 124 percentage points compared with the traditional method mBERT. In practical applications, the graph-based intelligent retrieval system achieves an average accuracy rate of 96.55% in the retrieval of teaching resources in English, Chinese, Spanish, and Arabic, with an accuracy rate of 98.47% in English and 94.56% in Arabic, and the length of the retrieval path is shortened to 21.60, which is 17.40% lower than that of the traditional method of fuzzy retrieval path for teaching resources. The method effectively integrates semantic association mining and knowledge migration mechanism, providing a theoretical breakthrough and practical paradigm for multilingual education technology.
This paper organically integrates the acoustic model topology, BIC and PSO, and improves the ASR system by optimizing the HMM acoustic model topology. The improved ASR system is used as an auxiliary teaching tool to optimize English listening teaching in colleges and universities by adopting TTS technology. Design the caMST model based on Rasch model to realize the accurate assessment of students’ English listening ability. Four English major classes of a key university in city A with a total of 120 students were selected for experiments to build an ASR system with optimal acoustic topology. The unidimensionality calibration of the Rasch model is incorporated to ensure the quality of the ca-MST question bank. Putting the proposed system into use, the results of the teaching experiment showed that the mean value of the listening score of the experimental class increased from 18.085 to 22.189 after the experiment, and the t-value of the change in the score was 2.874, whose significance (two-tailed) was 0.003, which was lower than the significance level of 0.05. The control group’s achievement improvement is small, and the listening ability does not show significant improvement, which in turn proves that using the system in this paper to assist teaching helps students’ listening ability, and provides more choices for the optimization of English listening teaching in colleges and universities.
This study focuses on the interaction mechanism between regional economic growth and eco-agricultural benefits under water resource constraints, and takes County Yunyang as a typical case for empirical analysis. Based on the SEM method of structural equation modeling, the complex relationship between latent variables is quantified by integrating multi-source data, and the path of water resource constraints on the synergistic development of the system is revealed. The results show that the direct effect of agricultural resource endowment on the coupled state is significant, with a path coefficient = 0.731, P = 0.011, and indirectly drives the standardized impact coefficient of economic benefits η through the coupled state of 3.722. The negative effect of industrial posture on economic benefits, with a path coefficient = -4.683, P = 0.020, suggests that an over-reliance on the traditional agricultural model may inhibit the ecological benefits. The model fitness test showed that the chi-square degrees of freedom ratio x²/df=1.384, goodness-of-fit index GFI=0.947, and root mean square of approximation error RMSEA=0.057 met the statistical standard, verifying the reliability of the theoretical framework. The degree of coupling and coordination of ecological-agricultural-economic systems in Yunyang County continued to increase from 0.578 in 2015 to 0.694 in 2024, with an annual average growth rate of 1.2%, reflecting the synergistic effect of policy optimization and resource integration. This study provides a quantitative basis for the synergistic development of regional economy and eco-agriculture under water resource constraints, and realizes the coupled optimization of eco-agriculture with resources and economy.
Personalized learning is a strategy that recommends the best learning strategies (including learning resources, test questions, etc.) based on the individual learner’s situation, so that the learner can obtain the optimal development. This paper takes the automatic prediction and recommendation of test question difficulty as the research object, and proposes a convolutional neural network model based on semantic attention mechanism for college English test questions. The model is based on the practice characterization method of semantic comprehension to extract semantic features and quantify the semantic dependence degree of English reading test questions, so as to assess the quality of reading test questions. At the same time, the automatic prediction model of test question difficulty is constructed by taking into account the content, difficulty and objectives of multiple test question types in English learning. The model is based on convolutional neural network and deep attention network algorithms to realize automatic prediction of English test difficulty. And through reinforcement learning settings, personalized rewards are set to guide the recommendation, and the test question recommendation model is constructed by combining the difficulty prediction of test questions. The model always shows optimal results in predicting the difficulty of test questions on different datasets, and the average absolute error is lower than 0.33 and the root mean square error is lower than 0.38, which demonstrates the high reliability of personalized recommendation of test questions.
Composition is an important expression of the artistic power of fine art landscape oil painting, however, its teaching has long faced the dilemma of subjective judgment and vague guidance. This paper takes the evaluation of fine art landscape oil painting composition as an entry point, describes the feature selection method, evaluation algorithm process, and the realization of each feature evaluation in image evaluation. At the same time, combined with the idea of multiple linear regression, it puts forward the evaluation method of landscape oil painting image composition based on multiple linear regression. After the objective composition performance results are obtained through the calculation of the multiple linear regression method, the content-based image scaling algorithm is used. Under the premise of ensuring that the image content is not changed, image scaling is performed to construct a composition optimization model for landscape oil painting images. The model, guided by the results of the regression algorithm, increases the optimization score of the actual oil painting image composition from the original 0.26 to 0.849, showing high feasibility and application value.
Onboard Carbon Capture System (OCCS) realizes carbon emission reduction of ships by capturing carbon dioxide (CO₂) exhaust gas generated during ship navigation and liquefying and storing it until it is offloaded ashore for professional treatment. Since the offloading of liquid carbon dioxide (LCO₂) has a certain risk, and the operation is complicated and requires high professional technology, this paper launches a research on the risk assessment method of liquid carbon dioxide offloading. Based on the storage conditions of LCO₂ in the shipboard carbon capture system and the unloading method and process, we analyze the content of the unloading risk assessment and the acceptable level. A fuzzy system is introduced to accurately reflect the degree and level of liquid carbon dioxide offloading risk and form a liquid carbon dioxide offloading risk assessment method. Collect the risk data in the actual unloading process of liquid carbon dioxide, and use the fuzzy system method to calculate the unloading risk data set. Based on this dataset, an offloading risk assessment model is proposed by combining the BP neural network algorithm. After training and iteration, the model has an accuracy rate of 95%, and the loss value is maintained at a very low level of 0.099, which shows an excellent risk assessment capability.
The study systematically explores the synergistic mechanism between complex structural performance enhancement and formal aesthetic expression of topology optimization techniques in art design through numerical computation methods. Based on the homogenization theory and the grid point density method, a macro-micro coupled microstructure topology optimization framework is constructed, combining the quadratic filter and the Heaviside function to realize the structural boundary smoothing, ensuring the unity of mechanical properties and visual fluency. For the complexity of multi-material composite structures, an improved MBESO algorithm is proposed, which balances the performance of tensile and compressive regions by dynamically adjusting the material distribution and stress criterion, and realizes the synergistic optimization of lightweight and aesthetics. Experimental validation shows that the MBESO algorithm reduces the number of iterations to 40 times compared with the traditional BESO, the volume fraction is reduced to 3.3×10-9, and the error of multi-material optimization is less than 7.59%. Through eye tracking and physiological response experiments, it is found that the average gaze time of high-density information-based design is 238.99 ms, which is significantly higher than that of minimalist white spacebased design of 205.66 ms, and the emotion-driven design significantly improves the heart rate by 0.387±0.806 bpm, and the change of respiratory rate by 0.906±0.499 resp, which verifies the strong correlation between formal aesthetics and user perception.
In this paper, a hybrid approximation \( F_{h\alpha} = a_1 + a_2 (fh\alpha) + a_3 (fh\alpha)^2 \) and prediction \(\min I (a_1, a_2, a_3) = \sum_{i=1}^n [a_1 + a_2 x_i + a_3 x_i^2 – y_i]^2\) model based on the generalized extension method is constructed for the optimization problem of nonlinear systems, and a Lyapunov stability analysis is carried out. The model is applied to the nonlinear gear micro-parameter optimization system and the trajectory tracking optimization system for optimal parameter solving and physical trajectory prediction reduction. During the gear microscopic parameter optimization process, most of the optimal parameter solving errors of the generalized extension method are between 0.00 and 0.02, which have high accuracy. The convex eigenfunction initial value construction and the spectral method discretization are utilized to solve the problem of efficiently solving the nonlinear algebraic equation system in the case of multiple eigenvalues, and the flight physical trajectory is effectively restored. The Lyapunov stability analysis shows that the generalized prolongation method satisfies the spectral stability condition under subharmonic perturbation.
Under the rapid development of information technology, the problem of computer software copyright infringement is becoming more and more prominent, and the traditional infringement determination methods are facing the challenges of low efficiency and lack of accuracy when dealing with massive data and complex code logic. Considering the different characteristics of computer software copyright infringement determination and traditional works, this paper discusses the important rules of copyright infringement determination (substantial similarity plus contact rule) from the perspective of academic theory. Under the guidance of the rule theory, the copyrighted software and the allegedly infringing software source code data are transformed into TF-IDF vectors using the optimized K-Means mean clustering algorithm. A high-dimensional mixed-attribute data similarity algorithm is used to calculate the similarity of the software source code data vectors and obtain the final mining results. Thereby, a computer software copyright infringement determination method based on the data mining algorithm is proposed. In the infringement determination experiment, the accuracy rate of this method is as high as 85% and above, and the highest recall rate is only 87.60%, which can provide powerful technical support for the determination of computer software copyright infringement.
The synergistic development of compulsory education and technology makes the education of children with special needs gradually receive extensive attention from the society, and how to help children with special needs realize effective mental health education has become a research hotspot. Starting from the factors affecting the mental health of children with hearing impairment, this paper constructs an intelligent art therapy platform for the mental health intervention of children with hearing impairment by combining art therapy and intelligent interaction design strategies. In this platform, the fuzzy logic algorithm is used to establish an intelligent retrieval model of painting information, which is combined with the vector space model to realize the keyword weighting, so as to improve the retrieval efficiency of children with hearing impairments on the information of art paintings. Then, a clinical experiment was designed based on the intelligent art therapy platform to reflect the feasibility of the application of the intelligent art therapy platform by comparing the mental health intervention effects of hearingimpaired children in the experimental group and the control group. The experiments showed that the average retrieval time of 500 documents by the fuzzy logic-based information retrieval method for paintings and artworks was 5.67 ms, and the scores of the experimental group were higher than those of the control group in the areas of auditory assessment, speech intelligibility, thematic dialogues, pictorial speech, auditory demonstration, and imitation of sentence length (P<0.05), and the scores of the experimental group in the areas of self-consciousness and social adaptability were significantly different than those of the control group before the intervention (P<0.05). The combination of intelligent technology and art therapy can provide new research findings for mental health intervention for children with hearing impairment.
The rapid development of the era of melting media has made the dissemination and creation of popular music more free, thus promoting the combination of life and art, and further narrowing the distance between audiences and music creators. The article combs through the changes of popular music communication characteristics and interaction modes in the era of melting media, and explores the specific manifestations of audience behavior in the process of music communication. The audience participating in music short video communication in DY short video platform is taken as the research object, and its dynamic behavioral characteristics are captured to produce data for audience behavior prediction. Combining 3D-CNN network with GRU in recurrent neural network, Conv3D-GRU model was constructed for predicting audience dynamic behavior in music communication. The results show that compared with GMSDR, the RMSE and MAE of this paper’s model are significantly improved by 13.08% and 14.77%, respectively, and the PCC value of the model can reach up to 97.79%.The Conv3D-GRU model possesses a better two-category error and accuracy, and the overall dynamic analysis efficiency reaches 87.44%. Combining neural network technology with music communication audience behavior prediction helps to expand the scope of music communication in the melting media environment.
Green development is an important support for realizing high-quality urban economic growth. The study utilizes polynomial regression algorithms and response surface analysis to investigate the impact of urban green development paths on economic growth, and conducts regression analysis and robustness tests on sample data from multiple cities. It is found that the slopes of the consistency curve and the inconsistency curve are both significantly positive at the 5% level, the curvature of the former is positive, and the curvature of the latter is negative, both of which are not significant, and the results of the robustness analysis are consistent. The results indicate that urban green development paths consistent with green actions do not necessarily promote economic growth, and cities with high levels of both green development paths and green actions have better economic growth compared to cities with low levels of both green development paths and green actions. At the same time, a high green development path-low green action combination promotes more synergistic economic growth than a low green development path-high green action combination. This paper studies the relationship between urban green development paths and synergistic economic growth from a consistency perspective, which is of great significance in guiding the government on how to better guide green strategies and economic development.
With the improvement of economic development and consumption level, the portfolio problem has become a concern of more and more people. Under the financial market risk management framework, this topic is based on the classical portfolio MV model, and the generalized MV model with multi-conditional constraints is established by introducing a variety of trading constraints existing in the real trading, which is solved by using the Lagrange multiplier method. Collecting trading data from the Chinese securities market for empirical study of the model, it is found that the portfolio returns of securities in industries with small correlation are higher than those of securities in industries with large correlation, and the risk-to-investment ratios of securities in different industries and the same industry are 0.834-1.057 and 0.823-1.038 in the multi-group test, and diversification of investment in different industries can reduce investment risk. The model in this paper performs better in all indicators of portfolio performance, its cumulative return is higher than the comparison method by 0.118~0.213, and the yield curve is stable at -0.024~0.025.The results show that the proposed multi-constraint portfolio model is not only reasonable and effective, but also can better guide investors to choose the optimal and robust investment program.
CNC machine tool is the basis of equipment manufacturing industry, with the continuous improvement of product precision requirements, the demand for high reliability and high precision machine tools is also more and more urgent, and the reliability of machining accuracy is an important indicator for evaluating the ability of machine tools to maintain machining accuracy. The study introduces the fuzzy logic algorithm, designs the adaptive fuzzy PID control controller for CNC machine tools, and realizes the error compensation according to the sensor fusion technology. The method of this paper is added to the speed loop control to improve the optimization parameters of the system, and then the method of this paper is compared with other control methods to calculate the estimated value of trajectory error in the machining process of CNC machine tools. According to the results of the study, the method of this paper has higher control accuracy and better convergence compared with other control methods, realizes the control of CNC machine tool machining accuracy in adaptive optimization model, effectively reduces the machining error of CNC machine tool, and has high practical application value.
With the rapid development of modern science and technology, various radio systems require more and more performance of antennas in complex environments, and traditional antennas are more and more difficult to meet the needs of modern radio systems. In this paper, the basic principle of finite element-boundary element hybrid algorithm to analyze the cavity is deduced by taking the three-dimensional open cavity on the infinite conductive surface as an example. And the SSPP circularly polarized dipole array antenna structure is designed, and the finite element-boundary element hybrid algorithm is used to analyze the radiation characteristics of the SSPP circularly polarized antenna, and the case of the SSPP circularly polarized antenna radiating beam is divided into the symmetric and asymmetric cases, and the radiation characteristics of the antenna are analyzed by simulation experiments. By changing the parameters in the impedance modulation method, the antenna is able to achieve dual beam radiation with dual circular polarization in any direction with circular polarization purity of more than 97.5%, and secondly, the antenna can achieve an impedance bandwidth of 66% (1.3 GHz-2.4 GHz) as well as an axial ratio bandwidth of 34% (1.22 GHz-1.85 GHz).
As the use of 3D modeling becomes more widespread, animation 3D techniques are facing more challenges. Neural radiation field provides a new idea to solve this problem by virtue of its ability to reconstruct a realistic 3D scene from sparse 2D images. In this paper, we use the depth camera (i.e., RGBD camera) to obtain the image depth information and generate the 3D point cloud data, combined with the greedy projection triangulation algorithm to reduce the 2D triangular mesh mapping to 3D space to form a 3D space triangular topology network structure, and obtain the 3D surface model of the object. Improve the neural radiation field for animation scene viewpoint synthesis, and design the neural radiation field framework based on space distortion. Comparison tests are carried out to analyze the reconstruction performance and rendering effect of the two algorithms. The greedy projection triangulation reconstruction algorithm takes only 12.043s to process the instance horse, and the maximum deviation distance, average deviation distance, standard deviation and root mean square error do not exceed 0.1 mm. The viewpoint synthesis method based on the improved neuroradiometric field shows certain algorithmic advantages in the viewpoint synthesis of animated scenes.
Aiming at the fundamentals and importance of sports action technology, combined with the existing development of sports action image recognition and analysis technology, this paper introduces the corner mechanism of quantum revolving door into the quantum genetic algorithm, and proposes the gradient-based adaptive quantum genetic algorithm. Using bilinear interpolation method to geometrically transform the sports action images, combining the normalized interrelationship measure with the improved quantum genetic algorithm to realize the sports action image matching process. To statistically compare the performance of the improved quantum genetic algorithm with other algorithms for sports action image segmentation. Analyze the total mean scores of teaching ability of sports trainee teachers when using quantum genetic algorithm to adjust sports movement techniques. In the function test, the improved quantum genetic algorithm adopts the quantum gate adaptive rotation angle strategy, which can avoid algorithm divergence or premature convergence, improve the accuracy and speed of algorithm optimization, and make the algorithm more robust. The total mean scores of teaching ability of physical education trainee teachers in the initial stage and the end stage of the internship were 3.49 and 4.45 respectively. The difference of the total mean scores of teaching ability proved the feasibility of the image matching technique of quantum genetic algorithm for the improvement of movement skills and the enhancement of teaching professionalism of physical education teachers.
The adjustment of agricultural economic structure under environmental change has become a key path to realize sustainable agricultural development. The purpose of this paper is to construct an analytical model to provide theoretical basis and practical guidance for agricultural economic restructuring. The model reflects the dynamic process of agricultural economic restructuring under environmental change by introducing indicators such as environmental technology efficiency and green total factor productivity. The model adopts the SBM directional distance function (SBM-DDF) and combines it with the Malmquist-Luenberger (ML) productivity indicators to measure the intertemporal dynamic changes of environmental technical efficiency and green total factor productivity in Chinese agriculture. The empirical analysis shows that the effect of environmental regulation on agricultural productivity in China has a distinct geographical nature. Currently, the environmental regulation construction in Chinese agriculture is relatively weak in general, and there is a great potential to improve the technical efficiency of agriculture, and the western part of the country should be a key area of concern for the future construction of environmental regulation in agriculture.
How to reasonably plan the transportation path of hazardous chemical vehicles and reduce the risk and cost of hazardous chemical transportation is an urgent and very realistic problem. In this paper, a multi-objective planning model of multi-vehicle path considering the cost and risk of dangerous goods vehicle transportation is constructed. In the model solution, the multi-objective problem is firstly transformed into a single-objective problem using the constraint method. Then it is solved using the Adaptive Inertia Weights and Cauchy Variation Method Improved Particle Swarm Algorithm (ACMPSO). Finally, the simulation test is carried out according to the solution process of ACMPSO. The simulation results verify that the ACMPSO algorithm can effectively ensure transportation safety while taking into account the benefits of transportation enterprises. And the ACMPSO algorithm takes less time and has higher performance than the PSO algorithm in solving the optimal path. The results show that the ACMPSO algorithm can achieve the optimization of road transport paths for hazardous chemicals by taking the risk and cost as the main optimization objectives and ensuring that the risk is under control. In order to ensure the safety of road transportation of hazardous chemicals, improvements can be made in several aspects, including transportation companies, regulatory mechanisms, vehicle and personnel management, emergency management and accident rescue.
Data protection and privacy encryption technology face heavy challenges in the billing big data environment. In this paper, after combing the current problems of privacy protection and data encryption, RSA homomorphic encryption algorithm is combined with CP-ABE attribute encryption protection algorithm to construct RSA+CP-ABE hybrid encryption mechanism. In order to explore the optimization effect of RSA+CP-ABE hybrid encryption algorithm, the security and performance of hybrid encryption algorithm in this paper are analyzed. The hybrid encryption algorithm of RSA+CP-ABE in this paper improves the security while maintaining the diffusivity and obfuscation.The encryption time of RSA+CP-ABE algorithm is comparable to that of the original RSA algorithm, while the decryption time is significantly reduced.The RSA+CP-ABE algorithm improves the key security and decryption speed.The encryption efficiency of the RSA+CP-ABE scheme is comparable to that of the RSA scheme. The encryption efficiency of RSA+CP-ABE scheme is reduced compared with that of RSA scheme, but the degree of efficiency improvement is reasonable and can meet the practical applications.
The article constructs TSM Tree storage model for big data stream, optimizes the fast query method by using APSO algorithm thinking, and constructs fast query model for big data stream by using discrete wavelet transform. The storage and retrieval performance of the big data stream storage model and fast query model are verified respectively.The TSM Tree storage model has high storage efficiency. The storage rate of the TSM Tree storage model increases rapidly when the file size is larger than 20MB, and the TSM Tree storage model is suitable for storing big data files over 20MB. In this paper, the fast indexing method has the highest Put execution efficiency and becomes the secondary indexing method for single condition query. The fast indexing method in this paper is optimized on multi-conditional query with the fastest response time of 0.954, 0.898, and 0.907s.
Natural language processing and computer vision technologies have greatly contributed to the development of large language models. In this paper, we focus on the introduction of Adaptive Module method in the pre-trained model to realize the efficient migration of the model and improve the performance of the model. In the applied research in the field of natural language processing, the Adapters module is introduced into the ALBERTBiLSTM-CRF model to tune the overall model. The adapter mechanism is utilized to improve the representation ability in the visual Transformer model. The results show that, through the comparative analysis of a large number of transfer learning methods, it can be seen that Adapters achieved a high average performance, with a tuning parameter number of only 0.23%. Therefore, Adapters is selected for the case study.The average number of parameters in the ALBERT-BiLSTM-CRF model with the addition of Adapters module is only 30M with an F1 value of 94.41%.The Adapters adapter component mechanism is capable of adapting to a wide range of downstream tasks and obtaining a better image representation.
The rapid development of the Internet of Things (IoT) has brought unprecedented opportunities and challenges to decision-making in engineering projects. This paper constructs intelligent decision-making method by utilizing the Internet of Things, artificial intelligence and other technologies. The Internet of Things is utilized to collect real-time engineering project status information and monitor the abnormal status. Then artificial intelligence is combined with operation research optimization algorithm to propose an intelligent decision-making method based on IoT data-driven. By verifying the overall performance of the system and analyzing the application examples, it can be found that the data delay of the IoT device is randomly distributed between 50ms-150ms, which is relatively smooth and has no obvious changing trend. The IoT device responds to the project 1000 data requests more accurately. The intelligent decision-making method based on artificial intelligence was adjusted at the 100th artifact. This ministry effectively reduces production performance loss, avoids the problem of inventory surge, and always maintains the inventory at a reasonable level.
Due to the complex structure of high-rise buildings, the diversity of use functions and other characteristics, resulting in once a high-rise building fire occurs, the number of deaths, injuries, and direct economic losses caused by the number of people is huge. This paper takes the fire incident of the telecommunication building in S city of N province as an example, establishes the fire spread model of high-rise building facade insulation material through Pyrosim software, and constructs its fire spread kinetic model. The linear regression and multi-physics field model are combined to realize the reconstruction of the fire accident scene, so as to realize the accurate simulation and analysis of various parameters in the fire spreading process. It is found that the heat release rate curve of the fire spread of the facade insulation material of the high-rise building is in the form of a double peak, and the first and second peaks appear at about 210s and 840s, respectively, and the heat release rate of the second peak reaches 2.15*106 kW. In the composition of the fire spread, the flame change of the flammable material B3 is the most drastic, and the temperature change is the most rapid. The difference between the simulation results and the measured results is relatively small, and the overall temperature change trend is more consistent with the actual results. By simulating the fire spread process of high-rise building facade insulation materials, it is necessary to strengthen the first mobilization of forces, actively develop flame retardant or non-combustible exterior insulation materials, and multi-point monitoring to enhance the fire rescue initiative when carrying out fire spread control.
The article constructs the covariance matrix as well as the mean vector of the stochastic differential equation and tests its hypotheses using the EM algorithm estimation. The model is applied to the PV carrying capacity assessment of county distribution networks, and the method is utilized to solve for the maximum PV capacity under the constraints such as the discard rate. Meanwhile, the distribution of PV carrying capacity prediction error uncertainty is analyzed by cloud modeling, and the kernel density estimation is used to quantify the prediction error confidence interval. Combined with the collected PV historical operation and real-time observation data, the carrying capacity assessment and uncertainty analysis are carried out. When the PV abandonment rate is 3.5%, the maximum overload and maximum network loss are 6.495 MW and 0.712 MW, respectively, and the PV acceptable capacity reaches a steady state. The results of PV carrying capacity assessment of this paper’s method and Monte Carlo method in power supply station area are close to 6.73MW and 6.71MW, respectively, but the calculation time of this paper’s method is faster. The application of stochastic differential equation modeling yields high accuracy of PV carrying capacity prediction results, which fall completely inside the 85% to 95% confidence interval. The PV carrying capacity prediction result of this paper’s method for 816 households in a county is 2652 kW. This paper’s method can effectively predict the PV carrying capacity of county distribution networks and realize accurate assessment. The confidence interval of the carrying capacity is quantified by combining the nonparametric kernel density estimation method.
Sports big data-driven combined with time series analytics greatly improves the prediction of competitive status fluctuations in elite athletes. In this study, an athletic state prediction framework incorporating Informer-based time series analysis is constructed based on multi-source sports big data. The model is utilized to learn the physiological data characteristics of athletes in different competitive states. The prediction performance of the model is specifically analyzed by combining the root mean square error and other evaluation indexes. Athletic state case prediction of 30 elite athletes is realized by deep learning feature data. The physiological data collected in the study show that athletes in the best competitive state generally have body temperatures between 36.5°C and 38°C, and other indicators are maintained in a relatively normal range. The model in this paper achieves good prediction results in different athletic states, with F1 values above 0.94 and prediction errors between 0 and 0.2. The model has a small error value in performing physiological data prediction, such as the absolute error of body temperature is between 0~0.5℃, which realizes the accurate prediction of elite athletes’ competitive state.
With the continuous development and power of big data and artificial intelligence technology, the application of artificial intelligence technology in English learning is becoming more and more popular. In this paper, based on the knowledge of multi-task learning theory, the optimal learning path recommendation method based on K nearest neighbor algorithm is designed in order to enrich the current English teaching path. It is found that the English vocabulary learning path still has the problem of low degree of interaction, accordingly, a sentiment prediction model based on principal component analysis and K nearest neighbor algorithm is constructed, and the model is verified and analyzed. The prediction accuracy of the traditional K-nearest neighbor algorithm is 77.73%, while the prediction accuracy value of the model in this paper is 96.03%, which indicates that the introduction of principal component analysis algorithm on the basis of the traditional K-nearest neighbor algorithm can improve the prediction accuracy of students’ emotions, and enhance the interactive effect of teaching by accurately capturing students’ emotional state.
Teachers’ teaching ability directly determines the quality of high-end talent cultivation, and objectively assessing the status of university teachers’ teaching ability is of great significance for improving their teaching ability and boosting the quality of Chinese higher education. This paper defines the abstract attributes and spatial interaction process of heterogeneous network multidimensional data, improves the equilibrium of heterogeneous network data, introduces the decision logic theory, establishes the granularity computation model, and mines to more associated data and hidden data. Using OLAP technology, we construct a multidimensional data warehouse and apply simplified logic mathematical formulas to calculate and solve the multidimensional data model. Using the multidimensional data computational model to assess teachers’ teaching competence, the highest value of teaching competence was found in teacher 6 among the subject teachers, and the competence values of the six assessment factors were 56.82, 68.81, 79.21, 89.62, 85.55, and 80.12, respectively. Curriculum development competence was found to be very important, and its importance and recurrence were 3.8 and 3.72, respectively, and emphasis should be placed on the assessment of this teacher’s competency should be evaluated.
In order to take the advantage in the market competition under the integration of cultural and tourism resources, the only way to open the cultural and tourism market and increase the popularity is to study the regional characteristics in depth and shape a distinctive and unique art tourism image and brand. In this paper, the VGG19 network model is used as a benchmark, so as to extract the multi-scale features of regional characteristic art image, and then introduce linear discriminant analysis to downsize the data of tourists’ comment images, and then construct a regional characteristic art image recognition model by combining the loss function. The validity of the model is analyzed by self-constructed dataset. Based on the identification results of the regional characteristic art image, the regional characteristic brand construction system is constructed by combining the regional brand culture, and the strategies related to the regional characteristic brand construction are proposed. Relying on policy leadership, planning guidance, technical empowerment and publicity optimization, it can provide new opportunities for regional characteristic art brand construction under the integration of cultural and tourism resources, thus helping the highquality development of regional characteristic cultural and tourism industry.
Aiming at the problem of poor accuracy in tracking the knowledge status of students’ civic education, this study proposes a deep knowledge tracking model incorporating domain features with the support of educational knowledge graph, the DKT-KG model. The model filters important assessment behavioral features through a decision tree and incorporates the knowledge dependencies characterized by the educational knowledge graph to solve the problem of poor prediction accuracy of the original deep knowledge tracking model due to the lack of domain features. The experimental results on the ASSISTments09, Junyi, and KDD datasets show that the DKTKG model can more accurately track knowledge points of the mastery level, and the AUC index and F1 scores are higher than those of other comparison models. Empirical analysis was conducted using historical data of question answering in four Civics courses taken by learners on the online education platform. The average knowledge mastery probability and its corresponding prediction accuracy derived when learners do different amounts of questions show that the deep knowledge tracking model constructed in this paper can accurately predict students’ knowledge mastery.
Establishing moral character is the fundamental task of education and the foundation of colleges and universities. Combined with the characteristics and requirements of specialized disciplines, mining the potential value of class Civics education is the main method of Civics education. In this study, after collecting and preprocessing the civic and political network data of different colleges and universities, we use the TF-IDF algorithm and the LDA theme model to conduct multi-dimensional mining of the potential value of civic and political education themes, and then use the Apriori algorithm to make its potential value of the association rules visualized. The mining results show that there are 7 major themes of potential value themes of Civic and Political Education, which are Red Culture, Online Service, Competition, Real-time Exercise, Cultural Promotion, Moral Literacy, and Knowledge Learning. Based on the analysis results, corresponding management countermeasures are proposed from the three levels of spirit, education and practice, aiming to improve the management level of Civic and Political Education.
With the growth of the financial market, the securities market has become more important in the financial market, and it is conducive to the stability of the securities market to fully recognize the existence of risk and make preparations for risk prevention. The study proposes a generalized autoregressive conditional heteroskedasticity model based on particle swarm optimization algorithm for independent component analysis (PSO-ICA-GARCH), which is used for nonlinear volatility modeling of the securities market to generate a statistical image of securities market volatility. Then a multi-stage supervised bi-stream linear convolutional network (B-CNN)-based model is proposed for recognizing the images generated in the previous section to predict the rise and fall of the securities market. The results show that the PSO-ICA algorithm has higher separation accuracy compared to the ICA algorithm, and the four industries of agricultural services, environmental engineering, communication services, and logistics have significant positively correlated volatility spillovers to the electronics manufacturing industry, which verifies the existence of volatility spillovers among industries in the Chinese stock market. Using multi-supervised double convolutional neural network to analyze it to avoid the volatility of the stock market, the risk management of the stock market can be strengthened in this aspect.
Along with the rapid development of today’s social economy, energy shortage has gradually become the focus of national attention. However, most of the construction enterprises lack effective monitoring means, resulting in sloppy energy use. In this paper, based on DBSCAN density clustering algorithm, combined with improved adaptive fast algorithm, scanning data radius parameter to realize polynomial fitting. Cell distance analysis theory is proposed to quickly determine the high-density region. The parameter of contour coefficient is chosen to evaluate the clustering effect of K-center points. Analyze the functional requirements of the energy consumption data analysis platform from four aspects: building energy consumption patterns, discrete cluster points of building energy consumption data, correlation analysis of building energy consumption data, and prediction of building energy consumption data, and design and improve the energy consumption data analysis platform. Comparing the three analysis platforms, the coefficient \(R^2\) of the intelligent building energy consumption data analysis platform designed in this paper is the highest, with an average value of 96.6252%, and the values of Cv are all controlled at 3.00%-7.00%, which meets the requirements of tolerance. Using the platform to analyze the energy consumption data of the actual case, the lighting and socket and power consumption of the test building is relatively stable, and the average monthly lighting and socket consumption is about 112,041,000 kWh, and the lighting and socket and power consumption is regular electricity consumption, which is not affected by the outdoor environment.
This paper creates an immersive theatrical scene under virtual reality through multimedia technology, and in order to optimize the effect of theatrical experience, the gradient boosting tree algorithm is introduced to recognize the content of theatrical characters’ behavior and speech, which lays the foundation for the interactivity of immersive theatrical experience. Starting from speech recognition, the gradient boosting tree algorithm of this paper is compared with other recognition methods to verify the effectiveness of this paper’s method. The satisfaction model of theater experience is constructed, and the audience’s satisfaction with the immersive theater experience is visualized through the IPA index. The accuracy of this paper’s gradient boosting tree algorithm for speech recognition is 93.38%, 92.62%, 99.88%, which is obviously better than other recognition methods and has higher accuracy. The immersive theater based on gradient boosting tree brings a more satisfactory experience to the audience. In immersive theater, the audience is most satisfied with the social experience, and the satisfaction level (IPA index) reaches 0.80. And the stage setting of immersive theater still has room for improvement.
In order to improve the inadequacy of the current college drama performance courses and teaching content, this paper firstly improves the scheduling method of drama performance through adaptive genetic algorithm, and then proposes a dynamic optimization mechanism of college drama performance teaching content for the teaching content. In order to test the effectiveness of the adaptive genetic algorithm in the scheduling of drama performance courses and the superiority of this paper’s dynamic optimization mechanism of teaching content, the performance of the adaptive algorithm and the teaching effect of the dynamic optimization mechanism are verified respectively. In the algorithm performance experiments, this adaptive genetic algorithm achieves the optimal solution adaptation value (1595.7233) and convergence speed (57). The experimental group adopting the dynamic optimization mechanism of teaching content in this paper significantly improved the teaching effect on six dimensions: acting paradigm, drama theory, acting style, acting practice, character analysis, and plot comprehension (p0.05). Before the experiment, the two groups were at the same level. After the experiment, the experimental group was significantly ahead of the control group in all dimensions (p<0.05).
Under the impact of artificial intelligence technology, it is both a challenge and an opportunity for the tourism culture industry. Referring to the relevant information, the comprehensive benefit evaluation index system of tourism culture is preliminarily determined. In order to ensure the practical application value of its system, the evaluation indexes are preprocessed using the Durfee method, and the task of constructing the comprehensive benefit evaluation index system of tourism culture is finally completed. Aiming at the limitations of the hierarchical analysis method, a combination algorithm of the entropy weight method and the hierarchical analysis method is proposed, and the weights of the indicators are calculated using this combination algorithm, and the calculated weights are imported into the fuzzy comprehensive evaluation model to realize the evaluation and analysis of the comprehensive benefits of tourism culture. The calculated value of the comprehensive benefit evaluation of tourism and culture in the region from 2016 to 2023 is 82.4, indicating that the value tends to [80, 90) interval, and its benefit level is good. A corresponding optimization path is formulated to accelerate the green and sustainable development of tourism and culture industry.
Intelligent education is an important direction of future education, and it is imperative to carry out English listening training teaching in the context of intelligent education. Aiming at the problems existing in traditional speech recognition algorithms, we first preprocess the speech data, and then use the MFCC algorithm to complete the work of English speech feature extraction, take the speech features as the input of the DCNN-CTC model, and after the continuous optimization and training of the attention mechanism, we finally design a speech recognition algorithm based on the ASKCC-DCNN-CTC model, and then validate the algorithm Analysis. On the basis of the speech recognition algorithm based on the DCNN-CTC model, after adding the ASKCC attention mechanism, the UA value is enhanced by 2.96% improvement, while the WA value is also increased by 4.44%, which verifies the improvement of the ASKCC attention mechanism on the speech recognition algorithm.
With the deepening development of digital technology, the evaluation of physical education teaching also changes with the development of teaching theory and mode. Based on the relevant theoretical foundation, this paper proposes an evaluation method based on stochastic simulation. The algorithm utilizes the autonomous dominance matrix and dominance power vector calculation to calculate the superiority matrix and obtain the comprehensive evaluation vector and the best ranking of evaluation objects. Taking four sports colleges as an example, the proposed evaluation method is applied to solve the results of the ranking of sports colleges to verify the feasibility of the method. Through the consistency test of different evaluation models, it can be found that the first and last consistency rate of this paper’s model reaches 50%, which exceeds the required 20%. Therefore, it has high credibility, good interpretability, small amount of information loss and good consistency. The results of the applied case study show that the rankings of the teaching evaluation values of the four institutions are: institution 4 (2.2-2.4) > institution 1 (2.2) > institution 2 (2.0-2.2) > institution 3 (1.8) at each number of stochastic simulations, and the model is statistically stable.
With the development of computer vision information processing technology, the method of visual parameter recognition is used to establish an image analysis model for the acquisition of visual information of ballet basic skill error movements. Distributed preprocessing of image features is carried out on the collected images of ballet basic skill error movements. The traditional multi-scale decomposition is improved, and the multi-dimensional wavelet scale decomposition method is applied to decompose the image at the pixel level. Then extract the threedimensional feature quantity of the ballet basic skill error movement, and according to the three-dimensional contour feature decomposition method, realize the three-dimensional modeling detection of the ballet basic skill error movement, and guide the ballet basic skill training. Equipped with the LAMP network architecture, design the ballet basic skill error movement correction system, and draw the overall functional modules of the system. Analyzing the use of the ballet basic skill intelligent error correction system, after the intelligent error correction system is put into use, the ballet college students’ sports overall injury risk is reduced, and the movement flexibility and stability are improved.
This paper points out the main players in the supply chain finance model, uses Dijkstra’s algorithm to calculate the shortest path between each node in the initial supply chain network, incorporates the META graph theory method, constructs the supply chain META graph, and calculates the core enterprise based on the matrix of the supply chain META pathway. Consider the impact of default risk on the optimal financing decisions of distributors, manufacturers and banks under the supply chain financing model of inventory pledge. Propose the optimization path of enterprise financing decision scheme under the collateral credit supply chain financing model. Combined with the numerical simulation method, the evolution path of the three parties is analyzed to explore the influence of different variable values on the financing decision. Under the order pledge financing model, the dealer’s optimal order quantity is inversely related to the bank loan interest rate. The higher the loan interest rate is, the higher the financing cost of the dealer is, leading to a decrease in its order quantity. When \(R_{3}>R_{2}+Ar^{2}\), the probability of the enterprise’s choice of loan, the probability of the supplier’s choice of fulfillment both tends to 1. The larger the penalty, the faster the tendency to 1. That is, both parties will choose a cooperative strategy (loan, performance). Since suppliers embedded in supply chain finance, the cost of default is increased, and they choose to perform in the long term, so supplier credit will form a benign development in the supply chain finance financing model.
This paper addresses the multi-objective optimization problem of grid scheduling under multi-terminal information interaction architecture, and proposes a grid scheduling optimization model based on adaptive dynamic planning under grid-connected mode. Taking operation cost and environmental cost as the core objectives, the multi-objective optimization scheduling model of microgrid under grid-connected mode is constructed. The idea of adaptive dynamic planning is introduced, and an improved iterative ADP algorithm is designed by combining neural networks. The model is verified by examples to generate a scheduling scheme that takes into account both economy and environmental protection: in 24-hour scheduling, the discounted solution operating cost is RMB 395.6, the environmental cost is RMB 216.0, and the storage charging and discharging strategy interacts with the main grid to dynamically match the loads and the fluctuation of electricity price. Comparative analysis shows that the iterative ADP algorithm reaches the optimal value at 250, 440, and 150 iterations, respectively, and the scheduling results satisfy the power balance and unit operation constraints while outperforming the traditional ADP algorithm.
In this study, a flexible interconnection topology design method based on intelligent algorithm-driven design is proposed for the flexibility and stability needs of low-voltage distribution networks in new energy highpenetration scenarios, and new energy access strategies are optimized by combining with the honeycomb active distribution network (HADN) structure. By improving the Davignan equivalent impedance voltage drop model and introducing the relative electrical distance matrix, the fast calculation of the static voltage stability index (SVSI) of the distribution network is realized, which reduces the computational complexity of topology optimization. The designed HADN topology supports active/reactive power optimization by realizing dynamic energy mutualization and cooperative protection among microgrid clusters through smart power exchange base stations (SPIES). Simulation experiments show that the proposed strategy has good adaptability under complex operating conditions, with PV power prediction accuracies of 93.14% day-ahead and 98.86% intraday, and unregulatable load prediction accuracies of 86.18% (day-ahead) and 96.34% (intraday), respectively. In the steady state operation, each distributed power source (DG) stabilizes rapidly, of which the combined photovoltaic battery system, photovoltaic power generation system, fuel cell and wind power generation system reach the steady state within 1s, 0.5s, 0.3s and 4s, respectively.
With the increase of renewable energy penetration, the power fluctuation of optical storage charging microgrids poses a serious challenge to the stability of distribution networks. In this paper, a comprehensive assessment framework based on computational analysis is proposed to quantify the static and dynamic impacts of new energy outputs on the distribution network by constructing a multi-microgrid system topology model and a windoptical-hydrogen cooperative regulation mechanism. The system-level and device-level constraint models are established by combining the connectivity graph theory, covering the branch voltage balance, node power limit, and the dynamic boundaries of the state of charge (SOC) of energy storage. A combined direct-indirect prediction method is designed to realize short-term and long-term prediction for the strong stochasticity of photovoltaic, wind turbine output and load power. The hydrogen production-storage-generation system is further introduced to smooth out new energy fluctuations by modeling hydrogen production and power regulation capability. Simulation experiments based on Matlab/Simulink show that the prediction accuracy of the proposed prediction model reaches 95.18% for photovoltaic output and 80.71% for wind turbine output. Under the optimized configuration strategy, the critical value of energy storage SOC is controlled at 89.45%, while the MPPT is 90.13%, which is more than 90% and is harmful to the safety of the energy storage device. The peak system load power is 606.41W, which is not exceeded. Comparing with KPCA, attention mechanism and other methods, the average assessment accuracy of voltage stability based on computational analysis is 99.18%, TSI=1.0, Gmean=99.48, which significantly improves the disturbance resistance of distribution network.
Enhancing drug delivery requires improving the quality of cross-linked hydrogels. In this paper, a molecular generation model is constructed based on graph convolutional neural network (GCNN). By simulating the intermolecular interaction situation and network structure, we optimize the selection of cross-linking agent and chain segment design to enhance the mechanical properties of hydrogels under different ratios. Systematically carry out hydrogel preparation and characterization tests to analyze the crystalline structure and thermal stability of boraxpectin cross-linked (SICH) hydrogels. The behavior and effect of SICH hydrogels based on structure optimization algorithms in drug delivery are analyzed through drug delivery practice. The results showed that the cell viability of SICH hydrogels in drug delivery was at least 70.49% with low cytotoxicity.The in vivo drug release of SICH hydrogels was nearly three times higher than that of PVA hydrogels in 24 hours. For in vitro drug release, it released up to 86.68% in 24 hours in a smooth manner, which had a good drug modulation release effect. Stable and efficient drug delivery can be achieved using cross-linked hydrogel SICH.
This paper takes the enterprise tax risk early warning as the core objective, combines with the crisis management theory, and constructs the multidimensional tax risk early warning indicator system. Using multiple logistic regression method to analyze the significant indicators related to tax risk. By empirically analyzing the enterprise financial data, the risk prediction model is established and the model prediction effect is verified. The regression analysis shows that the asset-liability ratio, the proportion of financial personnel, and the return on net assets are significantly related to tax risk at the 95% confidence level. Capital intensity is significantly associated with tax risk at 90% confidence level. The established multivariate logistic regression model has a steeper gain curve and higher prediction accuracy. This study proposes strategies covering capital structure optimization application and other strategies through quantitative analysis.
This paper systematically analyzes the impact of e-CNY on the military economy, and digs into the study of the importance of e-CNY on the military economy in terms of its impact on both the money supply and the deposit reserve. It chooses to construct a semiparametric quantile regression model based on panel data, fit the nonlinear mapping between variables by using B-spline function, and meanwhile combine the mixed regression strategy to realize the loss function taking value. Panel regression practice and model robustness testing are performed by mining the variables related to the impact of e-CNY on the military economy. The results show that among the seven variables, the level of technological innovation has the most significant effect on the level of military economic development (P<0.01). Economic status, trade status, and the level of political stability are significantly related to the level of military economic development at the 0.05 level. The level of currency internationalization, the level of transaction costs, and central bank reserves are correlated at the 0.1 level. The relationship explanatory power of the constructed panel regression model is verified by the robustness testing method in split-sample regression and variable substitution method.
Aiming at the problems of complex fault propagation paths, insufficient diagnostic robustness and low accuracy of fault-tolerant control in electromechanical systems, this paper proposes a fault detection and compensatory control method integrating ISM model and adaptive filtering algorithm. Based on the ISM, we analyze the fault hierarchy and identify the key propagation paths, and propose the DDAF-FD algorithm to realize the online identification of faults. The state feedback fault-tolerant controller is designed to utilize the real-time diagnosis results to dynamically compensate the performance degradation caused by faults. Experiments show that DDAF-FD achieves optimal results in the diagnosis of four different migration tasks with an average accuracy as high as 98.98% compared with six comparison algorithms. The average control accuracy of the fault-tolerant control system based on fault compensation reaches 95.2%, and the research results verify the effectiveness of the method in fault diagnosis and fault-tolerant control of complex electromechanical systems.
This paper proposes a multi-objective optimization method based on multiple group cooperative adaptive differential evolution algorithm (MCADE) for cable laying problems in power transmission engineering. A threeobjective mathematical model containing the weight of the cable network, the percentage of the main road in the bundling section and the openness of the path is constructed, and the differential evolution algorithm is selected for path optimization. Adaptive multiple swarm strategy and multi-operator parallel search strategy are designed, and the improved MCADE algorithm is proposed. The MCADE algorithm simulates the actual situation of power pipeline network to establish the power laying network, and the MCADE algorithm performs the best among the three algorithms in solving the shortest paths of the two devices, which saves 16.88ms and 12.13ms compared with the ACA and ABC algorithms, respectively, and the average length of the paths in eight power cable laying tasks is only 45.13m, which reduces 45.37m and 68m, respectively, compared with the two traditional path planning methods for laying power cables. Compared with the two traditional power cable laying path planning methods, the average path length is only 45.13m, which reduces 45.37m and 68.78m respectively. The results confirm that the MCADE algorithm can effectively solve the multi-objective conflict problem in complex cable laying scenarios, which provides theoretical support and methodological reference for intelligent design of power projects.
As an important part of improving the employment rate of college students, the current employment guidance work in colleges and universities suffers from problems such as lack of relevance and formality. In this paper, we start from the perspective of college students’ employment prediction, integrate the data mining method with college graduates’ employment prediction, and design the operation process of the employment prediction model. Then, we process the performance data and employment data of N college graduates separately, and use the Pearson correlation coefficient to analyze the correlation between graduates’ employment destinations and their demographic characteristics. Then the hybrid feature selection algorithm based on mutual information and weights (HMIGV) is introduced for the elimination of redundant information in the feature set. On this basis, the XGBoost algorithm is used to predict the employment of graduates, and a college student employment prediction model based on the HMIGV algorithm and the XGBoost algorithm is established. Compared with similar model algorithms, the model has the highest prediction efficiency on different college graduates’ datasets, with the lowest training time of 38.46 s and the lowest testing time of 6.82 s. By predicting college students’ employment with high efficiency, the model is able to provide powerful technical support and reference for graduates’ employment guidance work.
The rapid development of information technology, while promoting the wide dissemination of digital images and other multimedia information, has also given rise to a variety of image forgery means. The proliferation of forged images has put forward higher requirements for current image forgery techniques in terms of accuracy and fineness. This paper discusses the mathematical principle of CFAR target detection algorithm from two perspectives: the clutter statistical modeling of CFAR and CFAR detector, which is used as a target detection method for ordinary images. After completing the detection of ordinary images, the object shadow in ordinary images is taken as the entry point to explore the scene information provided by the object shadow. Based on the principle of planar homology, the co-point line constraint and intersection ratio consistency constraint methods are proposed to detect the image forgery region using the geometric features of the shadow. On the basis of the obtained image forgery regions, the image forgery model is constructed by integrating the traditional forgery methods such as ELA analysis method, spatial color method and CNN network algorithm. The designed forgery algorithm shows optimal performance in the forgery experiment of high-fake passports, and the leakage rate is as low as 0.288, which provides an effective technical reference for the identification of image forgery.
This paper proposes a smart tourism personalized recommendation algorithm based on Deep Attention Interest Collaborative Filtering (DAICF), which solves the sparsity and cold-start problems in tourism recommendation by fusing geo-tagged photo data with deep learning techniques to mine explicit and implicit relationships of user interests. The research utilizes P-DBSCAN clustering algorithm to identify hotspot locations, constructs user-tour route binary association matrix, and designs deep collaborative filtering model, combining shallow linear interaction with deep nonlinear interaction, to synchronously mine the low-order and high-order relationships between user and item features. Based on the real dataset Yelp, DAICF performed well in the Top-N recommendation task: the Precision@5 was 20.13% and the Recall@15 was 35.26%, which was significantly higher than that of the baseline models such as EPT-GCN and ASGNN. In addition, the ablation experiments show that key components such as social relations and temporal context contribute prominently to the model performance. In practical application tests, the DAICF-generated travel routes shorten the total distance of the trip by 52.5% and improve the time-to-time ratio by 41.9%, which verifies its efficiency and practicality in trip planning.
In recent years, China has made great efforts to develop fault diagnostic systems, and predictive maintenance in advance based on operational data can reduce downtime, operational costs and personnel safety in construction projects. In this paper, the time-frequency analysis method of instantaneous Fourier transform is used to study the time-frequency variation of non-smooth signals, and the appropriate window length is selected according to the vibration signals in order to provide better signal preprocessing results. Combine LSTM and CNN to deal with the system fault classification task, and introduce CBAM attention mechanism on this basis to improve the ability of recognizing and classifying fault signals in vibration data. Construct a predictive maintenance model to perform predictive maintenance on the system. The time-domain signals of severe faults are different from the other two states, and the amplitude is close to 10 m·s-2, which is easy to judge the system state after deep convolutional neural network calculation. Meanwhile, the predictive maintenance model designed in this paper incorporates the temporal convolutional network model with attention mechanism, which improves 7.042% and 45.223% in scores compared with the long memory network and bidirectional LSTM, which is of great value for practical system lifetime prediction.
The booming development of digital technology has prompted computer graphics to become the driving factor of interactive art design. In this paper, through 3D modeling optimization and geometric modeling technology, we construct a virtual environment interaction model, combining light and shadow mode and VR interaction, etc., to realize the optimization of interactive design. Starting from the image noise, lack of contrast and visualization needs in interactive art design, image smoothing, contrast enhancement and pseudo-color enhancement techniques are used to improve the image quality and enhance the interactive art expression. The method based on computer graphics processing is applied to the actual interactive art design practice to verify the advantages of the method. The results show that the signal-to-noise ratio of the pre-processed images is between 20% and 55%, which is within the range of high-definition standards. In the quantitative comparison, the four index values of NIQE, PIQE, PSNR and SSIM of this paper’s method are the lowest among the seven method comparisons. The final score in subjective comparison is 4.2698, which is higher than the comparison methods. The percentage of users who are very satisfied and satisfied with the quality of generated images and interactive realism are 73.62% and 76.21% respectively. The method of this paper can effectively improve the quality of interactive art and enhance the sense of user experience.
The realization of carbon neutrality goal, the power grid main network to promote low-carbon operation. To meet the needs of low-carbon operation of the main grid, this paper constructs an operation decision model based on reinforcement learning algorithm. By embedding algebraic equations with multi-source grid scheduling knowledge, knowledge such as trend calculation is transformed into machine language understandable by intelligences. At the same time, normative processing such as Max-min normalization is performed on the data to solve the interference caused by different unit magnitudes. Several microgrids are designed to conduct comparison experiments to judge the difference between the decision-making method of this paper and the traditional decisionmaking method. The results show that the extra amount of green power purchased by this paper’s decision-making method in each time period is no more than 270kWh, which is much less than that purchased by the traditional method. The total cost of main grid operation is 29.09% lower than the traditional method. The total carbon carbon emission is decreased by 41.57% compared to the traditional method. The low carbon operation decision-making model of power grid main network based on reinforcement learning algorithm can reduce the economic cost of power grid main network operation and realize the low carbon goal at the same time.
The trend of decarbonization of energy structure makes the low-carbon operation of the main grid network a key part of power system optimization. This paper takes the distribution grid under distributed power access as the research object, based on the theory of distribution grid structure and carbon emission flow. The carbon emission characteristics of distributed thermal power, wind power, gas, photovoltaic, and energy storage units are elaborated in turn, and the corresponding carbon emission mathematical model is established. Due to the uncertainty of renewable energy itself, the operation of the decarbonized power grid system has certain security risks. In order to predict the unexpected situation of the decarbonized grid system in advance to formulate the scheduling strategy, an interval prediction model based on gated recurrent neural network (GRU) is constructed. The model provides data support for the system’s low-carbon operation strategy by providing uncertainty information of the grid system’s contingency targets. The contingency situation is divided into two phases: the day-ahead and intraday phases, and the day-ahead phase utilizes the data information obtained from the prediction for intraday strategy generation. In the intraday phase, the corresponding adjustment method is used to optimize the scheduling according to the actual situation. The designed two-phase scheduling strategy reduces carbon emissions by 11.03% in the control variable scenario by adjusting the day-ahead phase, which has a significant reduction effect.
This paper proposes an electricity price prediction methodology and computational framework that integrates time series prediction algorithms and cloud native architecture for the multi-dimensional characteristics of the electricity spot market. The operation mechanism and tariff formation mechanism of three types of electricity market models, namely, pool-type, bilateral-type and hybrid-type, are systematically analyzed, and the normal distribution test is used to quantify the tariff distribution law. The dynamic similar subsequence prediction model is proposed, and the error correction mechanism is constructed by the time window optimization algorithm. We design a cloud-native edge computing framework for the Internet of Things (IoT), which solves the real-time computing and data security problems in resource-constrained scenarios at the edge in a multi-dimensional way. Building the arithmetic example, the proposed model improves significantly in prediction accuracy compared with traditional ARIMA and ANN methods, and the average absolute error is reduced to 0.249, which has the best prediction results.
Smart sensor networks have a wide range of applications in the fields of environmental monitoring and industrial automation, but their energy efficiency and node coverage optimization problems need to be solved. This paper proposes a dual-strategy improved particle swarm optimization algorithm (CMKPSO) for solving the deployment optimization problem of electronic sensing nodes. Combining the Boolean sensing model and probabilistic sensing model, the coverage probability calculation framework is constructed. The cross-variance and adaptive parameter improvement strategies are designed to enhance the global search capability of the algorithm and accelerate the convergence. Simulation experiments show that the evaluation function value of CMKPSO is finally stabilized at 0.94, which is 13%, 9%, and 4% higher than that of PSO, VF, and EABC. The CMKPSO algorithm reduces the average queue captains to less than 15, so that most of the queue captains are concentrated in less than 10, and significantly reduces the packet loss rate of the network and the node load pressure.
The increasing maturity of data analysis technology provides technical support for personalized recommendation of students’ learning path. This paper establishes a multi-dimensional student portrait labeling system by collecting behavioral data and ability characteristics of vocational education information technology students. Aiming at the limitations of the traditional single-view clustering method, a multi-view deep clustering model is selected to integrate the students’ outcome and process characteristics, explore the complementarity of different view data, and improve the accuracy of student clustering. Combined with the dynamic generative recommendation strategy, differentiated learning resource sequences are matched for different categories of students to achieve learning path optimization. The model is applied to real vocational education information technology majors to verify the personalized learning assistance effect of the model. The results show that students can be clustered into 4 categories according to 9 categories of information technology ability characteristic levels. This paper’s model scores more than 0.75 on five performance indicators, which is better than the comparison model. In the control experiment, the experimental group using this paper’s model to assist learning scored more than 60 points in each characteristic competency, and the rate of strong agreement in student satisfaction in the experimental group was more than 70%.
Influenced by the influence of the mother tongue learning method on the English learning method, students under the current university English teaching mode are difficult to make effective English language application in real life. This paper is guided by the migration theory. By guiding students to apply their existing learning methods to English language learning, it improves students’ metacognitive level, which is the main realization method of metacognitive transfer strategy. Meanwhile, on the theoretical basis of metacognitive transfer strategy, the deep learning technique of meta-learning is further proposed. Using meta-learning as a separate learning migration bridge between students and knowledge points in the knowledge point area, the meta-learning network module is constructed to complete the formation of the cognitive migration model based on the meta-learning algorithm. At the same time, the metacognition-based problem solving process is analyzed and the migration-based problem solving process is extended for the difficulties encountered by the students in the stage of the learning migration process. Under the tutelage of the cognitive migration model based on meta-learning algorithm, the students obtained higher mean scores of 2.5 and above on the nine variables of learning effect evaluation, indicating that the model can effectively assist in the enhancement of the teaching effect of college English.
Focusing on the modeling and optimization of students’ physical fitness improvement pathway, this study innovatively integrates complex network theory and multiple regression analysis to construct a dynamic influence model of table tennis teaching and students’ physical fitness. Topological parameters such as node degree value, median and importance were quantified by constructing a complex network. Combined with the composite Euclidean distance method, a student user model was established to investigate the influence mechanism of table tennis teaching activities on students’ physical health indicators. The experiment used stratified sampling method to compare the physical fitness changes between the experimental group and the control group, and used Spearman correlation analysis and multiple linear regression to reveal the nonlinear association between table tennis teaching activities and physical fitness. The results showed that the total score of table tennis teaching was moderately correlated with 1000 meters running (r=0.249, p=0.002) in the boys’ group, and the index of sitting forward bending was lowly correlated with the total score of table tennis teaching (r=0.166, p=0.029) and the classroom activities (r=0.157, p=0.011) in the girls’ group. Explosive strength improvement was significant in the lower grades and endurance improvement was prominent in the upper grades. The total score of table tennis teaching (β=0.322) had the greatest influence on physical fitness, followed by classroom activities (β=0.261) and activity frequency (β=0.214), which together constituted the core drivers. In teaching practice, the design of table tennis teaching program should be optimized by focusing on classroom activities and activity frequency, and differentiated intervention programs should be designed for different genders and school segments in order to effectively improve students’ physical fitness and health.
This study systematically explores the affective tendency of traditional Chinese cultural texts and their communication effects by constructing a corpus of traditional Chinese culture (COCC) and proposing a multimodal feature fusion and structural correlation analysis method, which covers five genres: spoken language, novels, magazines, newspapers, and academic essays, and is combined with cultural loaded word filtering to ensure the representativeness of the data. In order to solve the problem of cross-domain sentiment semantic ambiguity, a feature fusion method based on domain label description is proposed, which generates domain-specific labels through TF-IDF and word vector techniques, and designs a bi-directional attention-gated recurrent unit Bi-AUGRU model to optimize the text feature extraction. The clause association analysis model (DSAM-CC) is further proposed to integrate the discourse structure tree RST with sentiment association features to capture the coherence and logic of sentiment propagation at the document level. Experiments show that the DSAM-CC model achieves an accuracy of 82.65% and an F1 value of 77.76% in the sentiment analysis task, which is significantly improved over the benchmark models MemNet and LSTM. Word frequency statistics and visual analysis show that high-frequency adjectives such as “benevolence” and “loyalty” and nouns such as “Confucianism” and “solar terms” embody the ethics and pluralism of traditional culture, while the emotional distribution reveals the coexistence of positive reinforcement of traditional values and modern criticism. This study provides a data-driven analytical framework for the sentiment transmission mechanism of traditional culture, which helps the digital research of cultural heritage.
In this study, the Fourier transform is used as the core method to systematically compare the mathematical properties of the Eastern pentatonic scale with the Western purely melodic pitch system and the differences in their vocal performances. The SWIPE algorithm is optimized by improving the Fourier transform to estimate the pitch of pentatonic scale. Based on the differentiated interval segmentation characteristics, the calculation method of the pitch score value of the pure law is deduced. Combining audio signal preprocessing and FFT algorithm, the harmonic structure and note recognition efficiency of the two types of meters are quantitatively analyzed. The study shows that the harmonic energy of the Eastern pentatonic scale is concentrated in the low-frequency band (50- 200Hz) due to the mathematical characteristics of the five-degree phasing law, and the note intervals are concentrated in the interval of 0.6s~0.9s, and the note recognition accuracy reaches 99%. On the other hand, the western pure melody is based on the frequency proportionality of the natural overtone column, and the peak boundaries of the envelope are not obvious, which leads to significant high-frequency harmonic interference, and the note misdetection rate rises to 2.5%. This study reveals the deeper correlation between the mathematical properties of the metrical system and vocal performance through Fourier transforms, providing a quantitative analytical framework for cross-cultural music theory.
This study systematically analyzes the structural characteristics and enhancement strategies of college English teachers’ intercultural teaching competence through the integration of graph theory. A dynamic teaching competence model with three dimensions of curriculum design, facilitation and reflection was constructed, and structural equation modeling was used to verify the model fitness. The results of factor analysis showed that the total interpretation rate of the scale reached 84.714%, the result of X²/df showed 3.803<5, the value of RMR was 0.0280.90. The total effect of Curriculum Design Competence on Facilitation Skill is 0.391, and the total effect of Teaching Reflection Competence on Curriculum Design Competence and Facilitation Skill is 0.322 and 0.357 respectively, which identifies the indirect effect path of intercultural teaching ability of “Teaching Reflection Competence → Curriculum Design Competence → Facilitation Skill”. The indirect effect path of intercultural teaching ability is recognized. Based on the above conclusions, English teachers in colleges and universities should activate the leverage effect of reflective ability to drive the optimization of the ability structure.
As an important carrier of human cultural heritage, mural art contains rich visual symbols and national cultural connotations, which provides artistic reference for modern brand design. This paper takes mural art as the research object, and selects SIFT, a local feature description operator with good uniqueness of invariance, as the extraction algorithm of mural art features. The SC-SIFT descriptor is proposed by adding global features representing the shape space in the SIFT descriptor to enrich the acquisition information of feature description. After completing the optimization of the SIFT descriptor algorithm, the feature point pairs of the digital images of mural art are extracted using the SIFT algorithm, and the mural art feature extraction model based on SC-SIFT is constructed. On the basis of the acquired fresco feature data, the feature extraction as well as the analysis method of fresco art style is discussed. At the same time, combined with the characteristics of fresco art, the re-creation ideas and methods of fresco art symbols in contemporary brand design are elaborated. With the assistance of the SC-SIFT-based mural art feature extraction model and the re-creation thinking, the products designed by Brand K with mural art elements obtain a high average score of 7.36 in the cultural context dimension. This shows that the feature extraction model and re-creation method proposed in this paper can actively promote the re-creation and application of fresco art elements in brand design.
Aiming at the difficult problem of color distortion and style adaptation of mural images in the context of cultural and tourism integration, this study proposes a mural style migration model based on the fictionalizable Random Forest algorithm, which is combined with the CycleGAN framework to design a multi-component loss function to achieve a balance between content fidelity and artistic style. The random forest algorithm is improved by joint optimization of probabilistic decision nodes and leaf nodes, path length regularization (PPL) is introduced to control the model complexity, and traceable color profiles are constructed to support mural protection and cultural and creative design. The experimental results show that the proposed model RF-CycleGAN significantly outperforms the comparison algorithm in terms of FID of 175.891 and KID of 0.0233, and the user score reaches 4.08 (out of 5), and the “image appearance” and “style simulation” dimensions in the expert evaluation are 4.08 (out of 5) respectively. The dimensions of “image appearance” and “style simulation” in the expert evaluation score 4.20 and 4.10 respectively. Based on the migrated mural images, we further propose the cultural and creative product design strategy driven by cultural symbols, visual styling and color system, and verify the application value of the model in the living communication of cultural heritage.
Dunhuang murals are artistic cultural heritage with Chinese characteristics, which have rich reference value in visual communication design. In this paper, a fresco segmentation algorithm with enhanced edges is proposed by combining Sobel-Canny edge enhancement and improved GrabCut algorithm. A visual semantic segmentation model based on region suggestion network and full convolutional segmentation network is constructed to realize the high-precision extraction of visual elements of frescoes. The advantages of the proposed model in Dunhuang fresco visual element extraction are analyzed through comparative experiments, and the applicability of the model is explored from the perspective of user experience. The experiments show that the improved GrabCut model outperforms the mainstream segmentation algorithms in terms of PSNR (22.35dB) and SSIM (0.735), and the average running time of the visual semantic segmentation network is only 5.25 seconds. The user survey shows that the proposed model is highly recognized in the three dimensions of functionality, usability, and culture, and the study provides a feasible solution for the digital preservation of cultural heritage and crossmedia innovative design.
In this study, a CycleGAN framework integrating traditional pattern gene network and multi-objective evolutionary computation MOEAs is proposed, aiming at realizing the intelligent style migration and innovative design of decorative patterns of Central Plains culture. The association rules and spatial structure features of pattern design genes are extracted by constructing a traditional pattern gene network model, and MOEAs are introduced to optimize the generator weight parameters, which are combined with the channel attention mechanism to enhance the detail capturing ability. The experiments use the PASCAL VOC 2020 public dataset and the self-constructed Central Plains culture tattoo dataset ZYWY for double-benchmark validation, and the results show that the model’s tattoo segmentation accuracy MIoU on PASCAL VOC 2020 reaches 86.67%, which is significantly better than that of DeepLab V3+ at 83.46%. The generated image quality FID=6.83, IS=5.34 with diversity are better than the comparison model, e.g., FID=17.92, IS=3.65 for DeepLab V3+.Ablation experiments show that removing the traditional texture gene network leads to an 8.46% decrease in MIoU and a 177% deterioration in FID, which verifies its central role in the constraints on the structure of the tattoos. The subjective evaluation showed that the application value rating P=3.52 and the innovation rating Cr=2.98 of the generated tattoos by the art design practitioners were significantly higher than that of the traditional AI generation method P=1.95 and Cr=2.74. The study provides a solution that combines both technological feasibility and artistic practicability for the digitization of traditional tattoos for inheritance and innovation.
In this paper, based on the structure of microgrid and the micro power model, the dung beetle optimization algorithm is used to carry out multi-objective optimization of smart microgrid and construct a multi-objective optimal scheduling model. Then, a mixed integer programming method is used to optimize the multi-objective scheduling model and construct a multi-objective optimal scheduling model for microgrid based on mixed integer programming. After example analysis, the optimal operation and scheduling scheme and the economic benefit performance of various types of power supply access are solved. Scenario 2 with a weighting ratio of 0.4/0.6 between the net profit of the microgrid and the fluctuation of the contact line is the optimal operation and scheduling scheme. Compared with wind power access alone, the startup cost of wind-solar complementary access and wind-power-storage integrated access operation is reduced by 13% and 66.1%, respectively, and the operation cost is reduced by 7.53% and 17.2%, respectively, and the change rate of positive spinning standby is 0.6% and 4%, respectively. The integrated wind-optical-storage access can effectively reduce costs and improve economic efficiency.
In order to realize the digital inheritance and development of ancient village buildings, this paper considers the application of artificial intelligence algorithms to ancient village buildings. Taking the ancient village buildings in Henan Province as an example, deep learning methods such as U²-Net and YOLO, convolutional neural network, etc. are used to identify the overall recognition and color recognition of the ancient village buildings in the place, so as to realize the extraction of the genes of the ancient village buildings in Henan Province. On the basis of the results of building recognition, the factors such as façade styles, roof shapes, decorative patterns, color matching, and building materials of the ancient village buildings are analyzed. Through quantitative analysis of the statistical results, the architectural genealogy of ancient villages in Henan Province was constructed. The genes of façade style, roof shape, decorative pattern, color matching, and building materials of ancient villages in Henan Province are closely related to each typical building, and the characteristics of ancient villages with different buildings are different. The architectural layout of the ancient villages in Henan Province is dominated by 6 rooms with broad faces. 6-room a zigzag with three bright, two dark and two dumping sleeves plan layout is the architectural prototype, and the number of two-story attic variants is 1.5 times of the prototype.
The current problem of students’ mental health has attracted more and more attention, and students’ psychological warning is one of the most important means to ensure students’ mental health. This paper obtains research data based on the questionnaire method, utilizes multiple preprocessing methods to process the data, and at this level, uses the global chaotic bat algorithm to complete the data feature selection. The selected features are put into the Res-MLP network for training, and finally the artificial intelligence behavior recognition model based on Res-MLP is designed. Combining the model of this paper and the related development software, the multidimensional early warning system for the mental health of higher vocational students is designed and the system of this paper is verified and analyzed. The system still has excellent response time in the face of high number of concurrency, with a value of 1.332s, while also taking into account the excellent security performance, the system in this paper can better serve the higher vocational mental health education.
Carbon dioxide emission reduction relies on an accurate carbon emission monitoring system, and China’s electric power industry accounts for 40% of the country’s total carbon dioxide emissions, so the study of carbon emission monitoring methods for the electric power industry is of great significance. This paper proposes the monitoring direction of grid carbon emission data from the perspectives of pressure, flow, humidity, temperature, etc., associates the calculation formula of total carbon emission, establishes the monitoring model of grid carbon emission, and implements real-time monitoring of carbon emission in the power industry. Based on the current monitoring framework of the power system, the carbon flow calculation of the system is carried out, Q learning algorithm and VMD are introduced, and a combined prediction model based on VMD and DL is proposed for predicting the carbon emissions on the power generation side. The difference between the real value and the predicted value of the carbon emissions prediction of the VMD-DL model is not large, and the mean value of the error is at -1.779×10-4 megatonnes, and the combined model obtains the prediction of the optimal carbon flow Data. Using the VMD-DL model in the regional scenario, the out-of-sample 2018-2022 five-year minimum percentage error of 0.005% and the average absolute error of 0.01% show that the model error is small and the measured values fit the growth trend of total energy consumption in five years better.
Global climate change has become the focus of the international community’s attention, and in order to cope with the challenges it brings, China has set the goal of striving to achieve carbon peaking by 2030 and carbon neutrality by 2060. Based on the sparrow search algorithm, this paper proposes a least squares support vector machine method to solve the problems of predictive pattern classification and function estimation, and simplify the complexity of calculation. The carbon emission boundary of the power system is clarified, and the fitting function of the carbon emission of the power industry based on the night lighting data is constructed, taking into account the night lighting problem of the power system, to further improve the carbon emission prediction accuracy of ISSA-LSSVM. The prediction effect of ISSA-LSSVM is validated using ten-fold cross validation, and the experimental results show that the model has the highest fit, with a residual square of 0.08821 and a Pearson of 0.98876, which is better than other models. Predicting the predicted carbon emissions of the subject provinces under four scenarios, namely, green development scenario, low carbon scenario, baseline scenario and high carbon scenario, it is found by analyzing the data in 2030 that under the baseline scenario, the carbon emissions are 118.979Mt, which is an increase of 30.8427Mt compared to 2022, an increase of 34.994%, and the annual growth rate of the carbon emissions is 3.888%, and the baseline scenario dominates in carbon emissions.
This paper takes the listed high-tech manufacturing enterprises in Shanghai and Shenzhen A-shares from 2019 to 2024 as the research object, extracts the relevant panel data, and conducts descriptive statistics and correlation analysis on them. The panel data are utilized to establish the effect model based on the panel data, and the direct effect test is conducted. Through polynomial regression and response surface analysis, the synergistic mechanism between related variables is discussed. The empirical study shows that the digital transformation of enterprises and the development level of big data processing methods and cloud computing significantly promote enterprise innovation and development. And all of them showed a significant (P<0.001) positive effect in terms of effect test. The effects of synergistic interaction terms on both innovation quantity and innovation quality were significantly (P < 0.01 or P < 0.05) positive. Therefore, this synergistic mechanism is fully considered to promote the development of digital transformation innovation in enterprises.
Economic cyclical fluctuation is an economic phenomenon that is bound to appear in the market economic environment, and it is an objective law that must be followed in the process of macroeconomic operation. The study selected China’s economic development from 2000 to 2023 as the research object, from an empirical point of view, the use of wavelet analysis to study the economic trend of per capita GDP in 30 provinces in China and the overall domestic economic cycle fluctuations. At the same time, the effectiveness of Var model in financial risk management is examined. The research data show that most provinces and cities have a total of three troughs between 2000 and 2023, but the overall trend is upward, in terms of the number of troughs, the provinces and cities in the country have at least 11 troughs, and the largest number of provinces and cities even have 15, and the economic cycle fluctuations between 2000 and 2005 are more stable, with a clear upward trend. The Var model performs well that has better management significance for financial risk.
In today’s deepening globalization, arts and crafts teaching is facing unprecedented challenges and opportunities. Cross-cultural art exchange is not only a trend, but also a necessity. The confidence and support of association rules affect the quality of mining, in order to improve the mining efficiency, this paper proposes an algorithm based on improved gravitational search mixed with particle swarm (GSA-PSO) for association rule mining. When mining association rules, support, confidence and boost are selected as the evaluation criteria of association rules and the optimal rules are selected using Pareto method. Through simulation tests on nine datasets of different sizes, the experiments prove that the algorithm proposed in this paper has a significant advantage over the other five algorithms in terms of the quality of the rules obtained. Using the dataset of Chinese and Western painting images for analysis, based on the Sankey diagram composed of the association relationship between WesternChinese paintings, the adaptive threshold mining results of Western-Chinese painting types such as {spatial perspective-artistic conception} are strong association rules with the maximum enhancement greater than 1, but the enhancement for the fixed threshold {300m, 1h} is less than 1.
In recent years, network fraud as a new form of fraud, to the social and economic development and the safety of citizens’ property has caused a greater threat. This paper proposes a computerized detection technique for network text fraud by design, so as to reduce the success rate of network fraud. This paper classifies the text information of network fraud, and improves the text recognition method through the method of knowledge distillation, and constructs a lightweight fraud text recognition model based on just distillation. Through performance test experiments, detect the utility of this paper’s method to detect fraudulent text. The F0.5 mean values of this paper’s lightweight fraudulent text recognition based on knowledge distillation are 0.72, 0.67, 0.73 on the online fraudulent text training set, validation set and test set, respectively, which are significantly better than other detection models. The accuracy of this paper’s method on fraudulent text classification is greater than 0.8, which clearly outperforms other text classification models. All in all, the method in this paper comes out on top in both classification and detection of online fraudulent text, with better results.
With the implementation of rural revitalization strategy, the development of agricultural supply chain is of great significance in promoting rural economic development and farmers’ income growth. Starting from the two directions of both definitions and influencing factors, the evaluation index system of both is determined, followed by proposing the use of entropy weighting method to analyze the evaluation indexes in terms of weighting and measurement. The results are set as explanatory variables, explanatory variables, in addition to supplementing the corresponding control variables, on the basis of which the partial least squares method is used to complete the construction of the regression model. Setting the data source of this research, with the help of this paper’s model to explore the mechanism of action between the two in depth. The regression coefficients of the explanatory variables and the explained variables are 0.419, 0.157, 0.216 respectively, while both of them have a positive and significant correlation at the 1% level, i.e., there is a positive correlation between the optimization of supply chain of agricultural products and the increase of farmers’ income.
Aiming at the uneven settlement which is easy to occur in the process of soft ground construction of geotechnical engineering, this paper introduces genetic algorithm into the neural network algorithm, which makes the population converge to the optimal solution by controlling the crossover probability and variance probability. The kd-tree is constructed using the foundation building point cloud to get the plane area of the foundation building point cloud. Alpha-shape algorithm is used to extract the contour lines of the foundation area, and the feature lines of the foundation plane area are obtained by fitting the results of contour line extraction. The feature line matching method is combined with the ICP algorithm to perform point cloud coarse alignment and point cloud fine alignment. The optimized neural network prediction model is used to predict and analyze the point cloud alignment results of the foundation based on the ICP algorithm. The stability of the GA-BP settlement prediction algorithm designed in this paper is verified by combining the error results of the GA-BP algorithm on soft ground settlement prediction in engineering examples. Comprehensive K161+050, K162+872, K175+600 section in the pile embankment settlement observation data and prediction data, GA-BP algorithm prediction of the maximum error, the minimum error of 9.53%, 0.66%, respectively, the model prediction data and the actual observation data similar to the prediction model has a good prediction accuracy.
Aiming at the problems of low accuracy and missing information when UAVs utilize a single sensor for obstacle avoidance, this paper designs and proposes an autonomous UAV obstacle avoidance method based on multi-sensor fusion. The improved Bayesian fusion algorithm contributes to the multi-sensor fusion, considers the use of multiple UAVs to perform power system inspection tasks collaboratively, and utilizes deep reinforcement learning for multi-UAV inspection path optimization. On the basis of the AnoGAN anomaly detection algorithm, the performance enhancement optimization of the anomaly detection technology is carried out, and a SE-f-AnoGAN model for anomaly detection of UAV power inspection images is designed. The model draws on the idea of attention mechanism, and introduces a compressed activation network based on channel attention into the encoder of fAnoGAN, which captures the information of each channel from the global field of view category, so as to improve the accuracy of anomaly detection. Deep reinforcement learning multi-drone optimization path and multi-drone inspection image anomaly detection techniques are performed for model training and performance analysis, respectively.The DQN algorithm is designed to enable mobile drones to complete collision-free inspection path planning, and can continuously shorten the inspection path through training and learning to save inspection time.The SE-f-AnoGAN model has a high accuracy and precision rate in different dataset categories.
New energy generation technology has the prospect of large-scale development and commercialization, so it is of great significance to study the new energy consumption capacity of regional power grids, and to promote the planning of regional power grids to be compatible with new energy development. In this paper, considering various constraints, the optimal current calculation model is constructed, and the traditional time series production simulation is used to simulate the new energy consumption capacity of the system during the cycle. We introduce the associated cross-section limit calculation to reduce the risk of new energy abandonment and at the same time take into account the consumption capacity, and establish a linear tidal current-based calculation and new energy associated cross-section limit power optimization model. Simulation experiments are designed to evaluate the new energy consumption. Considering the new energy under the section constraints, the new energy output in the sending section increases continuously from 07:00 to 10:00, and the peak value reaches 2,452MW, meanwhile, the thermal power output in the section is automatically suppressed, and the section control is more delicate, which can greatly improve the utilization rate of the section. After simulation through the power system operation, it is found that there is a certain degree of wind abandonment in each scheme, among which the P2 scheme has the smallest wind abandonment, and the overall wind abandonment is 9217.195 MW•h, which is significantly smaller than the other schemes.
China’s economic and social development and transformation have led to changes in the mental health of the nation, in which changes in family structure brought about by social transformation have become an important factor affecting the nation’s mental health. This paper utilizes the logistic regression model in the multivariate classification analysis tool to explore the causal relationship between social support and mental health. Social support is divided into three levels: life support, economic support, and emotional support, and the impact of social holding on the mental health of the elderly is empirically analyzed. Based on the logistic regression model, the least squares estimation method was used to obtain the degree of influence of social support on the mental health of the elderly. Analyzing the degree of mental health of the sample, the total score of the elderly over 80 years old is lower, and the mean and standard deviation are 3.248 and 0.574, respectively, indicating that there is a certain downward trend in the mental health of the elderly of high age. Relative to men, emotional support has a more significant effect on the depression level of female elderly, with a regression coefficient of -0.059, P<0.05. Based on the findings of the study, five relevant recommendations are proposed to further enhance the mental health of the nation, such as providing good mental health services for the elderly, and actively creating a livable environment for the elderly.
University campus architecture is an important type of contemporary architecture, and due to the need for large-scale construction, existing studies have mainly focused on the overall planning of campuses and new buildings. With the concept of vertical “compound” and modern campus architecture design as the guide, this article proposes a structural system for the security assessment center of Beijing Jiaotong University’s Xiongan Campus as an example. For the effectiveness of the building design, this paper designs the corresponding evaluation index system, and introduces the entropy weight method to solve the index weights, and combines the fuzzy comprehensive evaluation to carry out the calculation and analysis. It also combines the quantile regression model to explore the influencing factors of the design of the safety evaluation center of Xiongan Campus of Beijiao University. The calculation results show that the comprehensive evaluation score of the design of the Xiongan Campus Security Assessment Center of Beijiao University is 4.006, which is at the level of good grade. And the geographical environment, campus planning, site conditions and faculty and student needs all have a positive influence on the construction of the Security Assessment Center of Xiongan Campus of NJTU at the 1% level. Therefore, it is necessary to build an overall planning and design framework from a global perspective, and pay full attention to the quality of the built environment, so as to ensure that the architectural design of the Center of Xiongan Campus of Beijiao University is more in line with the needs of the campus buildings.
The increasing water consumption in cities and towns makes the municipal sewage treatment in alpine and high altitude areas more and more difficult, and the optimization of the biochemical reaction effect of the reaction tanks in the sewage treatment process has become an important way to solve this problem. In this paper, starting from the structure of sewage treatment system in alpine and high altitude areas, based on the mathematical model of activated sludge method, its biological reaction process and multi-layer sedimentation model are analyzed. Then combined with MATLAB software, based on the model assumptions and the material balance equation of the concentration of each component in the reaction tank, the simulation model of the biodegradation process in the wastewater treatment reaction tank was constructed and the biochemical reaction under the change of the dosing ratio and temperature was analyzed through simulation. Then the outlet water quality and the total energy consumption of wastewater treatment were taken as the objective functions, and a multi-objective optimization model of wastewater treatment process was constructed, and the improved cuckoo search algorithm was introduced for optimization and solution. The results showed that when the value of input ratio was 0.008, the ammonia nitrogen concentration in the wastewater treatment reactor was stabilized in about 17 days and the concentration was less than 0.99 mg/L. By increasing the temperature to 36°C, the highest value of μH could be reached to 2.45 d-1, and the COD concentration of effluent could be controlled to about 49.96 mg/L. The results showed that the maximum value of μH could be reached to 2.45 d-1 by increasing the temperature to 36°C, and the COD concentration in the effluent could be controlled to about 49.96 mg/L. And the ICS algorithm can realize the optimal result solution of the multi-objective optimization model of wastewater treatment, which helps to improve the efficiency of wastewater treatment and reduce the energy consumption of wastewater treatment in alpine and high altitude areas.
In this paper, we choose the time series data of the number of women in Huizhou and the Huizhou region from 2013-2024, which are sourced from the official website of the National Bureau of Statistics (NBS). First-order difference equation and first-order difference equation methods are utilized to forecast the time series data from 2025-2030. For these data, a double difference model is established to analyze the long- and short-term relationship between the two through cointegration test, error correction model, placebo test, and regression analysis, so as to study the role of Huizhou women in the development of history and culture. The results show that the cointegration test reveals that for every 1% increase in the number of Huizhou women, the value of historical and cultural industry increases by 3.85%, which indicates that Huizhou women promote cultural development. The regression results yield a linear correlation between the two, with a correlation coefficient of 0.984 and a companion probability of P<0.01. Huizhou women have a long-term and stable effect on the development of history and culture, and do not have a short-term equilibrium relationship.
Neural networks have received increasing attention recently, which provide a relatively effective and simple method for dealing with highly complex problems. In this paper, a neural network-based prediction model for consumer purchase decision is constructed. The quantile regression function can reveal the characteristics of the entire conditional distribution of the response variable, and then using the neural network structure, the nonlinear structure in the factors affecting consumer purchasing can be simulated. The article selects the data related to the sales of notebook computers from January to June 2024 as the research object for empirical research, and the results show that, after comparing and analyzing with the linear quantile regression model prediction method, it is clear that the model of this paper investigates and predicts with a higher degree of accuracy, and with a better goodness of fit. The five quartiles of 0.1, 0.3, 0.5, 0.7 and 0.9 were selected for prediction, word of mouth and quality service, which can promote consumer purchase decision. Higher selling prices date lower consumer purchase decisions. Notebook higher memory does not significantly promote consumer purchases and should be in line with the normal needs of consumers.
Under the background of “dual-carbon” strategy, this paper proposes a path planning method for lowcarbon transition of power system integrating dynamic carbon oriented mechanism and meta-heuristic algorithm. By constructing a dual low-carbon demand response model and a stepped carbon trading model, and combining with the refined simulation framework of EnergyPLAN platform, a multi-objective optimization model is established from the three dimensions of power supply, carbon emission and costing. Parameter planning and Nash negotiation game theory are introduced to generate the Pareto frontier equilibrium solution, and the cooperative scheduling optimization of microgrid cluster is realized based on CPLEX tool. The simulation results show that microgrids A and B realize the improvement of power flow efficiency within the system through the time-sharing tariff mechanism (peak tariff of 0.82 yuan/kWh and low valley tariff of 0.25 yuan/kWh), and the internal tariff is 12%-18% lower than that of the external grid, which promotes the consumption of renewable energy. The total power generation costs under low, medium and high risk scenarios are 47.68 trillion, 53.12 trillion and 58.45 trillion yuan respectively, and carbon emissions are reduced to 2,444.33Mt, 2,142.21Mt and 1,793.55Mt respectively at the end of the planning period, and the average annual emission reduction under the high-risk scenario reaches 648.84Mt, which improves the emission reduction efficiency by 37% compared with that of the low carbon price scenario. The sensitivity analysis shows that when the carbon price is raised from 30 yuan/ton to 100 yuan/ton, the medium-risk scenario reduces carbon emissions by 237 million tons, and the total cost is reduced by 0.81 trillion yuan. When the share of energy storage is increased from 5% to 15%, the unit generation cost of the high-risk scenario decreases by 0.039 yuan/kWh, saving 2.07 trillion yuan.
This paper collects data on physical fitness and mental status of 200 badminton players by combining questionnaire survey and teaching experiment with 12-week physical education teaching experiment as the background. Gray correlation analysis, one-way ANOVA and multiple regression model were used to construct the interaction model of physical fitness and mental status and explore the mechanism of its influence on athletic ability. The results showed that the contribution of speed index (50m running) and endurance index (800/1000m running) to the athletic ability among the physical performance indexes (Beta=0.319, 0.305, p=0.007, 0.009) was significantly higher than that of the strength index (Beta=0.298, p=0.011). Mental state interacted nonlinearly with physical fitness level, with anxiety having the greatest negative effect on athletic ability (Beta=-0.322, p=0.002), while physical fitness enhancement had a positive effect on athletic ability. The study confirms that the synergistic optimization of physical fitness and psychological state can effectively enhance athletic performance, and the interaction model provides scientific support for the design of personalized training programs in physical education.
In this paper, the maximization of aromatics yield is taken as the objective, combined with the kinetic model of photocatalytic reaction, and the reactor inlet temperature is taken as the decision variable. Differential evolution (DE) algorithm is introduced to solve the variable optimally. Aiming at the solution limitations of DE, the adaptive relay-based hybrid differential evolution algorithm is proposed. Combining roulette selection with Gaussian random wandering strategy enhances the ability of global exploration and local exploitation. Through the comparison of algorithm performance and practical application, the improved algorithm in this paper is verified to be effective in enhancing the reaction efficiency of photocatalytic materials. The results show that the unit step deviation of this paper’s algorithm varies in the range of [0.00,0.35]. The optimal value can be basically obtained after about 12 generations of iterations. The difference in the fit of the optimization results does not exceed 0.005. The optimization accuracy is high and the convergence speed is fast. In the photocatalytic chemical simulation experiment, the aromatic yield based on this paper’s algorithm is increased by 3.87%, and the actual aromatic yield reaches 75.89%. Using the algorithm of this paper can improve the optimization effect of photocatalytic reactor, improve the experimental reaction efficiency and increase the aromatic hydrocarbon yield.
With the rapid development of intelligent service system in university libraries, personalized academic resource recommendation has become a key technology to improve user experience and resource utilization. This paper improves the traditional two-part relationship graph of user thesis and proposes UAMO model. Combined with Page Rank algorithm and sorting model, the importance of academic resources is quantified. Based on Apriori algorithm, an academic resource aggregation model is established to explore the spatial and temporal correlation between user behavior and resource topics. More than 100,000 resource data and 2,864 user behavior records of a university smart library are selected as experimental data to empirically test the effectiveness of the model. The results of association rule mining show that social science academic resources are browsed by college students in December with the highest confidence level of 21.5933%, and engineering and technology academic resources are browsed by college students in October with a slightly higher confidence level than the minimum confidence level of 10.5357%. The MAP value of this paper’s model (0.3865) is improved by 25.4% compared with the second best model BERT-TextGNN (0.3082), and the MRR value reaches 0.6927, which verifies the feasibility of the model in the intelligent library services of universities and provides technical support for the dynamic recommendation of resources and optimization of subject services.
This study proposes an intelligent service recommendation system that integrates dynamic planning model and improved label propagation algorithm (OCDSLP). Aiming at the limitations of traditional methods in semantic association mining and cross-cultural interaction adaptation, a three-tier system framework based on B/S architecture is firstly constructed to realize the separation of multi-role authority management and layered business logic. The OCDSLP algorithm is then proposed to optimize the community discovery process by fusing network topology similarity and semantic similarity. The state compression dynamic planning model is introduced to filter the optimal service combination segments. Experiments show that the OCDSLP algorithm achieves semantic matching accuracy of 85.1% and 84.3% on Usedcar DB and IMDB datasets. In the English cultural communication platform application, the proposed model performs optimally over the six control models under different number of Top-K neighbors. In the MAE dimension when the number of neighbors is 20, the error value reaches the lowest, only 18.891, and it is about 15.3% lower than the next best method NMF (RMSE=62.986) at the RMSE dimension threshold of 20. The results of the questionnaire survey show that users recognize more than 80% of the system functionality and experience.
Enhancing the treatment capacity of complex wastewater has a contributing role to the green development of the environment. In this paper, the wastewater treatment capacity of microbial fuel cells is enhanced based on the excellent properties of nanocarbon materials. Nitrogen-doped porous carbon materials and biomass carbon materials are prepared as the material basis for the modified anode of the cell. The microbial fuel cells were constructed and the effluent treatment capabilities of the three types of cells, L-N/PCs-MFC, N/PCs-MFC, and PCsMFC, were compared by multiple sets of experiments. The electrochemical performance of L-N/PCs-MFC was analyzed based on cyclic voltammetry, polarization and power density tests. The water purification effect of LN/PCs-MFC was verified by COD, TP, and TN removal tests. The results showed that the CV curves of L-N/PCs anode showed obvious redox peaks at both -0.45 V and 0.5 V voltage, which was higher than the capacitance. The open-circuit voltage was 820.59 mV and the slope was smaller than that of the comparison cell, and the internal resistance was minimized during the operation. The removal rates of COD, TP, and TN were all higher, and the water purification effect was good and could maintain the microbial activity effectively.
Civic and political construction of the curriculum is the wind vane of the reform of higher education in the new era, and to build a high-level talent cultivation system, it is necessary to grasp the construction of the curriculum of civic and political construction, and solve the problem of professional education and civic and political education. This paper combines the current multi-objective optimization problem of civic education, puts forward the corresponding research assumptions, then determines the objective function and constraints of the model, takes the particle swarm algorithm as the solution algorithm of the multi-objective optimization model, and finally completes the task of constructing the model. In order to verify the practical effect of this paper’s model in the development of the theoretical system of civic education, in this regard, the research program of the practical effect of civic education is designed, and the practical effect of this paper’s model is verified and analyzed with the help of data analysis software. After a period of teaching intervention, it is found that there is a significant difference between the experimental group and the control group in the six dimensions of the practical effect of civic and political education, and its p-value is less than 0.05, which verifies the practical effect of the model in this paper and provides a reference for the development and construction of civic and political education theory system.
This paper starts from the unsupervised learning algorithm and introduces it into the field of English teaching to analyze English grammatical structure in depth. The similarity of English texts is calculated using dependent syntactic analysis, and the English grammar structure analysis model (HHMM) based on unsupervised learning is constructed through the methods of plain Bayes, Hidden Markov Model, and Hierarchical Markov Model. The model of automated classification and sharing of English grammar teaching resources is constructed, and the automatic scoring module of online examination of the system is designed using graph attention network. The performance and usability of the HHMM grammar structure analysis model and the automated English grammar teaching system are evaluated respectively. The analysis indexes of this paper’s HHMM grammar structure analysis model in all experimental datasets are optimal results, and its grammar analysis performance far exceeds that of other models. The overall score for the usability of the automated grammar teaching system in this paper is 4.21. The scores of the four first-level indicators are all over 4 or more. The range of scores in the secondary metrics is [4.02,4.31]. The range of scores in tertiary indicators is [3.97,4.54], and only two tertiary indicators are below 4. It can be seen that the automated grammar teaching system in this paper has obtained good evaluation results among the student population.
With the rapid development of modern information technology, computer technology, network technology in education, the application of increasingly broad and deep, to promote the field of education in the way of teaching and learning, to provide a wealth of teaching and learning resources for education, so that learning in the network environment has become a reality. The practicality and effectiveness of a test paper is determined by the accuracy of the grouping algorithm to extract the test questions, from the proposal of the grouping problem to the design of the grouping model, for the deficiencies of the grouping algorithm, a simulated annealing particle swarm optimization algorithm (SA-PSO) based on simulated annealing particle swarm optimization algorithm is proposed to build a collaborative learning platform by adopting the computer technology for designing and applying the collaborative learning activities. The improved algorithm is applied to the question-grouping algorithm, and the test results show that the SA-PSO algorithm is more effective, with a 99% success rate of grouping, which optimizes the science and rationality of the question-grouping algorithm’s question-grouping process. Visualized from the three aspects of knowledge processing, social relationships, and behavioral patterns, the collaborative learning platform can effectively identify the online collaborative learning process, help teachers conduct real-time monitoring, intervene with students, and improve learning efficiency.
Traditional encryption and decryption algorithms have high performance overheads in cloud computing environments, and it is difficult to truly balance security and operational efficiency. This paper takes optimizing data encryption and decryption performance and strengthening data information security as the research objectives. After completing the definition of security space text similarity connection and related issues, the cloud computing system model is proposed. Then, combined with the cloud computing environment, the lattice core encryption and decryption algorithm consisting of key generation algorithm, core encryption algorithm and core decryption algorithm is designed. The algorithm ensures that users can perform complex and correct encryption and decryption calculations under limited resources by using fog nodes to bear most of the computational overhead for users. After combining the lattice core encryption and decryption algorithm with the cloud computing model to obtain the data encryption algorithm, a security model is set up to ensure the security of private data such as data information, query information, and result information. The data encryption algorithm in this paper takes only 3.75s and 4.13s to encrypt and decrypt compared to similar algorithms, which is the most efficient encryption and decryption.
The deepening of the integration of artificial intelligence technology and the field of education has injected new vitality into the optimization of the ideological and political education model. This paper focuses on the optimization of the ideological and political teaching mode and the construction of its personalized learning path, and analyzes three important problems encountered in the construction of the personalized learning path for ideological and political education. Subsequently, it describes the representation of seven learner characteristic parameters as a reference for the representation of the learner characteristic data set in the personalized learning path. After completing the preparation and input of learner characteristic data, the improved genetic algorithm is applied to construct the personalized learning path model under the Civic Education Mode. With the assistance of the designed personalized learning path model, students’ knowledge mastery rate can be increased by up to 35.18%. With the support of artificial intelligence, the personalized learning path model of Civic and Political Education can effectively recommend learning resources and provide learning assistance according to the individual situation of different learners.
Sports interest is the internal driving force for students to actively participate in sports activities, and when students become interested in sports activities, they will devote themselves to them to improve their sports skills and fully enhance their mental health. This paper takes a number of senior vocational schools in Jiangsu province as the research object, and obtains research data by using physical activity participation scale and mental health scale as the research tools. Then a multiple linear regression model was introduced to construct a research model between the participation in sports activities and mental health level of senior vocational students. On the basis of normality verification and correlation analysis, the relationship between higher vocational students’ physical activity participation and mental health level was verified by benchmark regression, and the reliability of the results was analyzed by robustness test. The results show that if the participation rate of vocational college students in sports activities increases by 1%, the mental health level of the students will rise0.126% and there is obvious regional heterogeneity in the relationship between the two, with the southern part of Jiangsu being relatively strong and the northern part relatively weak. In the context of the integration of sports and education, higher vocational colleges should enrich the types of sports activities to provide guarantees for meeting the diverse needs of students’ sports activities, thereby enhancing students’ mental health levels.
Regression models in the context of digital economy play an important role in financial risk assessment. This paper introduces the DY spillover method in TVP-VAR and establishes the time-varying parameter vector autoregressive spillover index model (TVP-VAR-DY) to measure the level of risk spillover. Based on this, the model evaluation index system is constructed to evaluate and analyze the financial risk situation using the regression analysis of support vector machine. Thirty-six financial institutions in the 2012-2021 interval are selected as research objects for empirical analysis. Under the impact of three major events in 2013, 2015 and 2020, the stock returns of financial institutions have obvious clustering characteristics. China’s financial risk spillover index keeps fluctuating within the range of 35% to 55% from 2012 to 2021. The financial risk assessment shows that the model regression values in 2017, 2019, 2020 and 2021 are in the interval of [0.3, 0.7], and China’s finance is in a high-risk state. 2013, 2014, 2015, 2016 and 2018 are in a low-risk state.
Musical feature matrices were developed with computer technology and have been most fully developed in modern music composition in recent years. This paper extracts and analyzes the timbral feature matrix and tone intensity change envelope curve of Debussy’s piano piece using the spectral analysis method of short-time Fourier transform. Also through the MIDI file in the extraction of each note length, pitch, pitch velocity, channel and other information, the establishment of note feature matrix, for digital music creation to lay the foundation. The experimental results and analysis show that the method in this paper can accurately recognize the time value of the piano music score, and its error values are all within the range of (-5%, 5%). The BER of the proposed algorithm in this paper is lower, the signal-to-noise ratio of the recognition algorithm is smaller, and there is a clear delineation of audio signal features. The tonal color and acoustic characterization of three piano pieces, Prelude, Moonlight, and Minuet, are completed. Finally, the sound color of “Moonlight” is improved with sine wave musical notes, which lays the foundation for modern music creation.
The law and development trend of soccer determines the importance of the strength quality of soccer players, and the strength quality plays an important role in the development of other qualities, and the strength quality is the fundamental for soccer players to improve the level of sports technology and special performance. In this paper, firstly, the force of the soccer ball and the factors affecting the flight trajectory of the soccer ball are described, the force process of the soccer ball in flight is decomposed, and the optimization model is established and solved without considering other secondary factors, and then the simulation of the soccer ball’s goal speed is carried out, and the correlation and regression algorithms are used to explore the multivariate regression analysis affecting the curvature and speed of the soccer ball’s shot. The results of the study show that the closer to the goal, the higher the shooting rate; while close to the left and right edges of the goal and the two corners, the shooting rate is almost 0. The relative size of the probability of scoring a goal with or without the Magnus effect shows an alternating banded radial distribution. The four factors, ball initial height, ball off hand height, wrist joint speed and knee joint speed, had the greatest effect on the hit rate in different distance shots through the arc of the shot and the speed of the shot.
With the increasing global concern for environmental protection and sustainable resource utilization, companies are facing unprecedented challenges. At the same time, consumers’ environmental protection awareness is increasing, which puts forward higher requirements for corporate social responsibility. The study establishes the evaluation index system of enterprise economic sustainable development based on the principle of evaluation index construction. The evaluation indexes are screened by principal component analysis, in which the cumulative contribution rate of total assets contribution, cost and expense profitability, product sales rate, and total capital preservation and value-added rate to the evaluation of enterprise economic sustainable development reaches 95.6%. Aiming at the problems of RBF neural network, the principal component analysis algorithm is introduced, and the genetic algorithm is used to optimize and construct the combined prediction model PCA-GARBF, and through the algorithm comparison, it can be seen that this method is able to effectively evaluate the sustainable development of the enterprise’s economy, with high accuracy and real-time performance. Combined with the fuzzy set qualitative analysis method for analysis, the results show that there are four types of modes to improve the performance of enterprise sustainable development, based on which the digital management path of the enterprise is proposed to provide reference for the development path of the enterprise.
As the scale of data centers continues to expand, they face the challenge of rapidly increasing data volume. To solve the problem, this study constructs a system model based on cloud computing data center scenario, designs a task scheduling model using the improved Double DQN algorithm, and proposes a co-optimization method for energy consumption and arithmetic power in cloud computing data centers. Through simulation experiments on Cloud Sim cloud simulation platform, it is found that this paper’s method has smaller energy consumption compared with other algorithms, and the energy consumption values are reduced by 23.92% and 17.62% compared with the Q-learning algorithm and the Q-learning(λ) algorithm with different numbers of virtual machines, and it has a faster convergence speed. Meanwhile, this paper’s method performs better in reward value, average latency and load balancing, and the average latency is reduced by 30.30%~53.33% and 67.76%~90.59% than the comparison method in regular traffic and high traffic environment. The results show that the optimized Double DQN algorithm in this paper can effectively reduce the energy consumption and latency of cloud computing data centers, and has some practical value in the co-optimization of energy consumption and arithmetic power.
In recent years, the cultural and tourism integration model has played an important role in practice all over China. Based on the integrated development of culture and tourism in Guangxi, this paper constructs the evaluation index system and calculates the weights by using the subjective and objective combination assignment method. Then based on fuzzy mathematical theory, the fuzzy comprehensive evaluation method is used to obtain the evaluation of the comprehensive development level of Guangxi’s culture and tourism, and the coupling coordination degree is utilized to explore the integrated development of the two. The average development levels of culture and tourism in Guangxi during the study period are 0.513 and 0.555 respectively, and the extreme values of the development levels are 0.41 and 0.47 respectively, and the tourism industry has a better level and speed of development, but with greater volatility. The overall development of cultural and tourism integration in Guangxi is in the state of mild dislocation and on the verge of dislocation, and the coupling coordination degree is all less than 0.5, and the cultural and tourism integration shows a gradual upward development trend in zigzagging, but there is still a large space for upward movement. Except for 2017-2018 and 2021-2022, the cultural and tourism integration in the rest of the years of the study period is in the state of cultural lag. Countermeasures are proposed to strengthen the construction of talent team, expand the whole industry chain of culture and tourism and strengthen the cultural excavation and inheritance in order to promote the sustainable development of culture and tourism integration in Guangxi.
This paper utilizes the meta-universe scene construction technology to build virtual and real environments that serve learning and provide new paths for learning development. The construction basis of three-dimensional image is proposed, and it is pointed out that after the three-dimensional model is constructed in Unity 3D, the scene projection is transferred to Game panel by Camera to realize the visualization operation. Based on the appropriateness of blockchain technology and smart learning scenarios, propose a blockchain-based IoT data security collection scheme. Discuss the possible threats in the scheme, utilize the theory of reputation assessment to ensure the security of data collection, and propose the reputation assessment algorithm based on sampled data. Simulate and analyze the reputation assessment algorithm based on sampled data. Combine the survey data to analyze the propagation development of the meta-universe learning scenario. In the linear regression model, the regression coefficients of platform accompaniment, ease of use, learning immersion, resource effectiveness, platform interactivity and classroom engagement \(\beta\) are 0.467, 0.513, 0.363, 0.392, 0.336, 0.319, respectively, and all of these independent variables have a positive impact on the attitude of meta-universe learning scene use. Thus, in the subsequent development and promotion of meta-universe learning scenarios, we can focus on the convenience of scenario development and construction as well as the ease of use of the learning platform.
As an important component of China’s intangible cultural heritage, the standardization of movements in traditional martial arts is the key to the inheritance of the art. In this study, a motion capture analysis system for traditional martial arts is designed with Kinect motion capture model as the core, combined with Unity3D technology and Dynamic Time Warping (DTW) algorithm. The system can capture human motion data stored in a standard database by Kinect device and provides videos related to traditional martial arts learning. Combined with the DTW algorithm to match the joint angle and velocity characteristics during movement, the automatic scoring of traditional wushu movements was realized. The average three-dimensional motion range of the spine in traditional wushu is between 137±13°, and the average range on two-dimensional recognition is between 138±17°, with better recognition effect on different levels. The correlation between the 3D coordinate-time curves of human joint points obtained by the system analysis of this paper and the manual analysis is strong, and the correlation coefficients are all greater than 0.90. The traditional wushu movement curves measured by this system are basically consistent with the actual movement curves. In addition, on the scoring of traditional wushu movements, the error between the scoring of this system and the scoring of experts was between ±0.2 points. The results of this study promote the digital inheritance of the intangible cultural heritage of sports and have practical value for the dissemination of traditional martial arts.
In the field of acoustic diagnostic fault audio monitoring of mechanical equipment, the fault audio sample data plays a crucial role in enhancing the operational safety of mechanical equipment. To this end, this paper designs a mechanical fault audio acquisition framework based on a high-resolution A/D digital-to-analog converter, and performs noise reduction on the acquired acoustic audio signals by improving the variable-step-length LMS adaptive filtering algorithm. Then the compression-aware algorithm is utilized to realize the sampling data compression, transmission and recovery of the mechanical fault audio information, and the sampling accuracy of the mechanical fault audio information is improved by the additive random sampling algorithm, which further reduces the power consumption of the sampling of the acoustic audio information of mechanical faults. The transformer equipment fault audio information of a power grid is selected as the research object, the BIOES annotation specification is adopted to automatically annotate the mechanical fault acoustic automatic audio information, and the mechanical fault audio information knowledge base is established. The BiLSTM+CRF and Transformer models are utilized for named entity recognition and entity relationship extraction of mechanical fault diagnosis audio information knowledge respectively. The results show that the audio information acquisition method designed in this paper for acoustic diagnosis of mechanical faults has higher efficiency and lower power consumption, and the F1 values of entity recognition and entity relationship extraction for BiLSTM+CRF and Transformer models reach 95.87% and 86.31%, respectively.
With the continuous iteration of algorithms in the field of deep learning, generative AI design is ushering in a revolutionary change. In this project, we study the controllability path of generative AI, take Stable Diffusion as the base model of image generation, use the improved LoRA method and Controlnet to fine-tune its control, and realize the image generation method based on Stable Diffusion ControlNet. The experimental results show that the image quality of the image generation model designed in this paper obtains better performance in IS, FID and other evaluation indexes with reasonable scale parameter and sampling step size. 8.83% and 76.07% of IS and FID values are improved compared with the Stable Diffusion1 model when scale parameter is set to 8, and 1000 sampling steps are used to achieve better image quality than the Stable Diffusion1 model. The minimum FID value of 1.18 is obtained when the sampling step is 1000, which verifies the effectiveness of the Stable Diffusion ControlNet network designed in this paper. The silk scarf pattern generated by the model scores 5.36 and 5.47 in artistic aesthetics and normality, and the generated pattern is clear and of excellent quality. In addition, the model meets the requirements of practical applications in terms of computational efficiency and hardware cost. The results show that the proposed Stable Diffusion ControlNet model can be used as a generative AI method with good fine-tuning.
In order to solve the environmental problems of compound heavy metal pollution in farmland water, a vertical submersible artificial wetland wastewater treatment simulation device was established using different forms of substrate configuration to remediate heavy metal pollution in farmland water. Four groups of artificial wetland systems were constructed in the greenhouse with the substrates of gravel, zeolite, biochar and zeolite-biochar, and the changes of effluent water quality and the effects of nitrogen and phosphorus removal were observed to investigate the long-term treatment effects of different substrates on the wastewater containing composite heavy metals, and the distribution characteristics of the heavy metals in the artificial wetland. The removal rate of each heavy metal by each group of artificial wetland was calculated, and the flux of Cd retention in the wetland system was further analyzed to describe the role of plants in the artificial wetland. The results showed that the effluent from all the devices was in a low dissolved oxygen state, and the pH value gradually decreased. The combined removal rate of heavy metals in wastewater by each group of artificial wetland systems reached more than 70% overall, but the combined removal rates of different heavy metals were different.
Promoting the high-quality construction and high-quality development of housing has become the urgent demand of the housing industry, and providing quality housing that effectively meets the needs of users has also become the trend of the housing market. Based on the perspective of residential quality, this paper obtains 6 firstlevel evaluation indexes and 24 second-level indexes through the theory of the principle of construction of evaluation index system, thus composing the evaluation index system of residential quality of Hangzhou large flat project. Before constructing the evaluation model, we use hierarchical analysis method and entropy weighting method to calculate the comprehensive weights of evaluation indexes, and then combine the weights, topology method and cloud model to design the evaluation model of the living quality of Hangzhou large flat projects. Taking Hangzhou large flat project C as a research case, the model in this paper is used to evaluate and analyze it. After calculation, 24 secondary indicators show high living quality, with values ranging from 0.8 to 0.95, which concludes that the development direction of Hangzhou Grand Flat Project C is very suitable for the users’ living quality needs.
With the continuous development of vocational education, accurately grasping students’ ESP needs has become a necessary path for optimizing students’ vocational skills training path. Based on the Apriori algorithm, this paper mines the association rules between the vocational skills learning data of students in a university in Guangdong, reveals the intrinsic connection between students’ vocational skills and students’ ESP needs for Chinese+vocational skills courses, and designs the students’ vocational skills cultivation path based on the TPACK framework. Then, social network analysis was used to visualize the relationship data in the vocational skills cultivation path network, analyze the differences of different individual centrality indexes in different student nodes, and explain the key roles played by different student nodes in the vocational skills cultivation path. The study shows that based on Apriori algorithm, we can effectively identify students’ Chinese+vocational skills related features, and the improvement between “public liability” and “litigation” is as high as 1474.23%. 1474.23%, and there is a high degree of intrinsic connection between the two. Based on the network architecture analysis of vocational skills training path based on the social network analysis method, it is accurately identified that among the different students, the point degree centrality of the students who are in the core position in the class is higher, and the leadership role of this kind of students can be given full play to, and the optimization of the vocational skills training path can be provided to the students in a targeted way.
The integrated development of transportation and tourism is a strategic choice to cope with the diversified needs of tourists, and also an important way to transform and upgrade the tourism industry in the new development period. In this paper, 14 prefecture-level cities in Guangxi are taken as research samples. Based on the comprehensive development level of transportation industry and tourism industry in Guangxi, a comprehensive evaluation index system of transportation industry and tourism industry in Guangxi is established. By collecting and analyzing panel data from 2010 to 2022, Coupled coordination degree analysis and exploratory spatial data analysis are used to evaluate and analyze the development level of transportation and tourism integration in Guangxi, measure the comprehensive level of transportation and tourism industry in Guangxi and their integrated development status, and analyze the spatio-temporal evolution characteristics and influencing factors of transportation and tourism integration in Guangxi based on the integrated development status of prefecture-level cities.
Taking Zhenxiong County as the research area and Zhenxiong County in Yunnan Province as the study area, this study systematically evaluated the susceptibility of landslide disasters using the susceptibility index method. By collecting and analyzing multi-source data such as geology, topography, meteorology, and human activities in the research area, a landslide susceptibility evaluation index system was constructed based on the determination of key factors affecting landslide susceptibility. ArcGIS technology was used to extract relevant evaluation factors and determine the weights of each index. Based on this, the susceptibility index method was used to quantitatively evaluate the susceptibility of landslide disasters in Zhenxiong County. The study area was divided into extremely high susceptibility areas, high susceptibility areas, medium susceptibility areas, low susceptibility areas, and non susceptibility areas. The results showed that the high susceptibility areas of landslide disasters in Zhenxiong County exhibited a clear band like distribution. In response to the above results, this article proposes corresponding prevention and control measures, aiming to provide scientific basis for preventing and reducing the risk of landslide disasters and ensuring the safety of people’s lives and property.
The disposal of discarded rubber tires poses significant environmental challenges, including resource depletion and ecological damage. To address these issues and enhance the sustainability of construction materials, the potential application of rubberized concrete in airport pavement engineering is explored. In this study, rubber particles sized 3-5 mm, 6-10 mm, and rubber fibers sized 10-20 mm were incorporated into concrete by substituting sand at volumetric replacement levels of 5%, 10%, 15%, and 20%. Through four-point bending tests, the influence of rubber morphology and replacement levels on the flexural strength and flexural elastic modulus of rubberized concrete was systematically evaluated. Experimental results indicate that higher rubber replacement levels lead to a gradual reduction in flexural strength and elastic modulus. At a 20% replacement level, the flexural strength of concrete with 3-5 mm particles, 6-10 mm particles, and 10-20 mm fibers decreased by 13.5%, 15.6%, and 20.5%, respectively, while the corresponding elastic modulus declined by 20.3%, 18.5%, and 20.9%. Notably, concrete with 3-5 mm rubber particles exhibited the highest flexural strength, while concrete with 10-20 mm rubber fibers showed the lowest elastic modulus. These findings suggest that a rubber replacement level below 10% can optimize mechanical properties while minimizing reductions in strength, highlighting the potential of rubberized concrete for use in airport pavement engineering.
This study is to further explore the influence of repeated mining on surface changes in coal mining areas, and discuss the law of surface movement under special surface conditions. Based on the observation technology of surface movement and the numerical simulation method of universal discrete element code (UDEC), it analyzes the surface movement of mining surfaces 204 and 205 in the panel 2 area of Tingnan Coal Mine in Binchang mining area under repeated mining. The research results show that the 204 working area is extremely inadequately mined, so the surface movement is very small, the subsidence rate is only 0.046, and the surface deformation is weak, which will not cause damage to the surface construction facilities. The mining results in the 205 working area, which is close to the conventional full mining conditions, show that the surface movement is serious with obvious deformation, and the subsidence rate reaches 0.22, which is far from the maximum subsidence value, and the insufficient mining subsidence range shows basically same with that of the sufficient mining. Simultaneously, the surface movement law of multi-face mining is simulated based on the UDEC numerical simulation method. The results reveal that the mining surface movement law of 204 and 205 working faces is basically consistent with the surface observation results. The content of this study can provide scientific and effective reference materials for subsequent research on surface movement monitoring, and is of great significance to the safe mining of coal under buildings (structures) in Binchang mining area.
Heating, ventilation, and air-conditioning (HVAC) systems play a pivotal role in demand response (DR) by enabling load modulation to enhance energy flexibility. However, traditional strategies often optimize only a single variable—such as indoor temperature or chilled water temperature—limiting coordinated system control. In addition, the influence of dynamic occupant distribution on building energy performance and flexibility is rarely considered, especially in high-occupancy spaces like libraries.To address these limitations, this study proposes a multidimensional synergistic control strategy that simultaneously optimizes indoor temperature setpoints, chilled water supply temperature, and fresh air unit operation to enhance energy efficiency and DR performance. A TRNSYS-based simulation model of a university library in Hunan Province was developed to evaluate the strategy. Key performance indicators included peak load reduction, energy savings, and indoor thermal comfort, benchmarked against a baseline control strategy. The impact of occupant seating patterns on control effectiveness was also examined.Results show that, compared to the baseline strategy (ST1), the proposed strategy (ST6) reduces energy consumption during DR periods by 34.3%, daily energy use by 14.92%, and electricity costs by 20.00%. Concentrated occupant distribution further improves load regulation and system efficiency. This study demonstrates that integrating occupant behavior into multidimensional HVAC control offers a scalable and effective solution for enhancing DR capacity, building energy performance, and operational cost savings.
In response to the limitations of existing methods in dynamic modeling of complex expressions, multimodal data quality optimization, and hierarchical feature fusion, this paper proposes a hierarchical graph comparison learning model based on local and global features. This model integrates graph neural network and contrastive learning techniques. It captures expression details by constructing local graphs, models cross-modal semantic collaboration through global graphs, and introduces an automatic graph enhancement strategy to improve the model’s generalization ability. In the multimodal feature extraction stage, key features are accurately obtained from the video, audio, and text modalities respectively, and then the features are integrated through the intra-modal attention and multimodal fusion mechanisms. The experiments use the CMU-MOSI and CMU-MOSEI datasets. The results show that compared with multiple benchmark models, the model proposed in this paper performs better in terms of accuracy, recall rate, F1 score, and other indicators, and its mean square error is at a relatively good level. It can effectively integrate multimodal information, has excellent performance in the expression recognition task, and provides new ideas and methods for the development of this field.
Due to the varying reflectivity of LiDAR scanning small targets on insulators at different positions, the point cloud granularity exhibits irregularity and disorder. Using conventional linear learning methods for point cloud segmentation of insulator small targets results in unreasonable segmenta-tion granularity and significant segmentation errors. Therefore, this paper proposes a point cloud subdivision optimization model for power tower insulators based on point network+LSTM. A classification network for insulator positioning timestamp data was constructed using a point network, and each point cloud feature was extracted using MLP to address the impact of irregu-larity and disorder in the point cloud on segmentation rationality. Utilizing the symmetric function MaxPooling network for secondary extraction of point cloud features, achieving three-dimensional coordinate displacement invariance with increased point cloud data volume. Remove interference from point cloud data outside the range through direct filtering and cloth filtering algorithms. Uti-lizing the nonlinear learning ability of LSTM network to improve the data dependency problem of RNN network. By iteratively training granularity through granularity multiplication, the rationality of point cloud data segmentation granularity can be improved. Establish a point cloud data seg-mentation model for power tower insulators based on LSTM network, and introduce a loss function to optimize it, in order to reduce the segmentation error of insulator small targets. The experimental results show that after the application of this method, it still maintains high segmentation confi-dence when the amount of point cloud data of power tower insulators increases. The fine-grained rationality of point cloud data segmentation is strong, and the average absolute error of segmen-tation is small, less than 0.1%, and it can preserve the details of the original data. This method can improve the reliability of point cloud subdivision of power tower insulators, with good subdivision effect, and provide reference for the classification and classification of insulator states.
Geocell-reinforced soil has been widely applied in engineering projects in permafrost regions, but its mechanical behavior during the frost heaving process still requires in-depth research. This article conducts lowtemperature frost heave tests to evaluate individual geocell-reinforced soil samples with varying water contents. Based on the experiments, a three-dimensional numerical model is established to simulate the interaction between the soil and the geocell, and to analyze the variation patterns of temperature, moisture, displacement, and frost heave strain. Then, the reinforcement effects of geocells with different shapes are compared. The results indicate that the geocell exhibits significant non-uniform strain distribution during the frost heave process. Moreover, the higher the water content, the greater the frost heave displacement. By comparing geocells of different shapes, it was found that circular geocells perform best in restricting soil frost heave. The application of geocells in frozen soil regions can enhance the frost heave performance of soil, and this study provides a theoretical basis for geocellreinforced engineering in such areas.
Gray wolf optimization algorithm has performance defects such as slow convergence speed, easy to fall into local optimum and high processing complexity. In this paper, an improved gray wolf optimization algorithm (IGWO) is proposed with reference to the improvement idea of whale optimization algorithm. Aiming at the shortcomings of the uneven distribution of individuals in the population initialization of the grey wolf optimization algorithm, a chaotic mapping is introduced to initialize the population, and based on the randomness and regularity of the chaotic mapping, the global search process of the algorithm in this paper is optimized. In addition, an exponential convergence factor is proposed to update the control parameters of the algorithm. Then, a nonlinear convergence parameter is introduced to change the updating method of the iterative formula to optimize the algorithm, and it is applied to artificial intelligence. The research results show that the clustering accuracy of the improved Gray Wolf Optimization Algorithm for a variety of classical functions is maintained at more than 90%, the convergence accuracy and performance are better than the comparison algorithm, and it is able to complete the multi-intelligent path planning under different experimental environments and different number of intelligences control conditions, which verifies the feasibility of the algorithm proposed in this paper in solving the optimization problem of the Gray Wolf Optimization Algorithm.
In recent years, SRSF3 has been shown to be a proto-oncogene involved in a variety of tissue-specific splicing events and is closely related to human diseases. The splicing factor SRSF3, an important member of the serine- and arginine-rich protein family, is abnormally highly expressed in a variety of tumors and plays an important role in tumor cell proliferation, migration, and invasion. In this paper, in order to deeply analyze the role of SRSF3 in rectal cancer, RNA sequencing technology was used to determine its role in gene expression regulation. By preparing relevant reagents and materials, carrying out experimental work such as cell recovery, cell culture and passaging according to the steps, emphasizing the extraction of total intracellular proteins, we analyzed the expression of the shear factor SRSF3 in the tumor tissues of rectal cancer. The clinical case parameters of 60 rectal cancer patients were selected for correlation analysis, and the correlation coefficient between SRSF3 and clinicopathological parameters was less than 0.05, that is, the expression of SRSF3 was positively correlated with the pathological grading of colorectal tumors, while it was not correlated with other pathological features. Moreover, the expression of SRSF3 in rectal cancer tumor tissues was significantly higher than that in normal tissues, which could promote rectal cancer development by regulating the splicing of a series of cancer-related genes.
This study proposes an optimization scheme for green procurement e-tendering system integrating distributed processing and cryptography theory, aiming to improve process efficiency and enterprise sustainability through data analysis model. The e-procurement business platform constructed based on the national bidding specification integrates procurement plan management, supplier evaluation and expert collaboration modules, and introduces the threshold secret sharing mechanism to reconfigure the security architecture, and realizes the distributed storage and disaster recovery of bids through the (t, n) threshold policy. The encryption time of the proposed threshold secret sharing algorithm is 262ms and decryption time is 362ms under 50MB data, which is significantly better than 1428ms and 1545ms of traditional RSA and 1297ms and 1549ms of ECC, and real-time performance is improved by more than 80%. In the performance evaluation, homomorphic encryption performs optimally with 93.51% resource utilization and 95.85% data accuracy, while data anonymization has the shortest processing time of 102ms but lower resource utilization of 74.96%. Through the empirical application of 198 enterprise users, the optimized platform has significantly increased efficiency from 16.67% to 58.08%, cost savings from 10.10% to 47.98%, and system stability (61.62% very stable) and user satisfaction (71.72% very satisfied).
Exercise load is a quantitative physiological index and training intensity index that athletes and coaches are extremely concerned about. In order to obtain valuable potential information from a large amount of random exercise load data, with the assistance of data mining technology, a training load monitoring method based on aerobics athletes is proposed, which utilizes the association rule method to mine valuable information for predicting the amount of human exercise. After that, a kinetic model of the sports training function monitoring system with mutual feedback relationship among athlete’s function, training and recovery is constructed to provide rationalized suggestions for training load regulation of aerobics athletes. Numerical simulation results show that the system in this paper is more suitable for data mining of athletic biochemical indexes of aerobics athletes. The numerical simulation results of aerobics training load regulation show that with the gradual increase of the training load level and training movement intensity regulation factor of aerobics athletes, their recovery cycle optimization factor will gradually decrease, and when each regulation factor is increased by 20%, the athlete’s athletic ability level can be increased by up to 7.87% compared with the original. In addition, the regulation of movement complexity shows that the training load has a time lag effect with the improvement of athletic ability level.
In recent years, the importance of athletes’ injury risk assessment has been increasing in the field of sports training. Through questionnaire survey, expert interviews and mathematical statistics, the risk factors of athletes’ sports injuries and illnesses were studied, and the assessment index system was established. Combined with logistic regression analysis, the risk factors were evaluated in four dimensions: athlete’s own risk, organizational management risk, equipment and facilities risk, and environmental risk factors, in order to provide references for athletes’ sports rehabilitation and training programs. In addition to environmental risk factors, athlete’s own risk, organizational management risk, and facility risk were significantly positively correlated with athletes’ injuries and illnesses, and athlete’s own risk was the main causative factor for the occurrence of injuries and illnesses. The average precision, recall, F2 score and AUC of the logistic regression model were 0.852, 0.9714, 0.9174 and 0.9547, respectively. Compared with other models, the model in this paper improved by 18.56%, 7.63%, 8.24% and 2.96%, respectively, and demonstrated a good precision of assessment.
The article reviewed the relevant literature on the evaluation of Chinese reading comprehension ability, and also consulted the experts engaged in language comprehension research in universities. The reading comprehension ability evaluation system was designed, and the weight coefficients of each index were determined by using AHP-entropy weighting method. And a multilevel assessment model was constructed based on the multilevel fuzzy comprehensive evaluation method. By establishing the fuzzy evaluation terminology, the language literacy and thinking development level of students are analyzed. And the improvement strategy of Chinese reading comprehension is proposed, and the effectiveness of the improvement strategy is explored with the teaching experiment. Before the teaching experiment, the comprehensive reading comprehension ability of the experimental group and the control group were at a poor level, and the comprehensive scores were 2.91 and 2.88 in turn, with no significant difference. Under the strategy of this paper, there is a significant difference between the experimental group and the control group in the ability to identify and decode, generalize and integrate, analyze and reason, as well as appreciate and evaluate, and the weighted scores of each index are improved by 0.16 to 0.71 points in the experimental group compared with the control group. At the end of teaching, in a comprehensive view, the strategy of this paper makes the experimental group’s comprehensive reading comprehension ability reach 3.51 points, which improves to the middle level, while the control group is still at a poor level.
With the digital transformation of industrial enterprises, the energy industry environment faces increasingly complex network security and information security issues. Based on Kubernetes cluster management system, the article establishes an emergency security response system for the energy industry and designs a series of functional modules for data collection, security detection and emergency response. In order to improve the network intrusion detection capability of the emergency security response system, this paper proposes a network intrusion detection model based on 1DCNN-BiGRU. The 1DCNN and BiGRU models are used to obtain the spatial and temporal features of multimodal data, respectively, and the fusion of the spatial and temporal features of multimodal data is realized through the full connectivity layer, which then realizes the network intrusion detection of the emergency security response system. The study shows that the weighted average F1 score of the 1DCNN-BiGRU model in network intrusion detection is up to 0.9335, and the acceleration ratio of the emergency response system in the energy industry is up to 143.91, which can effectively realize the system dynamic load balancing. Fully exploiting the changing characteristics of multimodal data and integrating deep learning to promote the energy industry emergency safety response capability.
Aiming at the characteristics of randomness and volatility of the power output of multivariate decentralized resources affected by natural conditions, this paper proposes a new type of intelligent cluster regulation and control strategy. A multivariate equivalent modeling method is designed to establish a cluster voltage control model to enhance the system’s ability to dissipate decentralized resources. The krill swarm algorithm is improved, combining inverse learning and Powell’s local search strategy to solve the optimization problem in dynamic reconfiguration. Simulation results show that the improved krill swarm algorithm improves the voltage of each node more than the standard krill swarm solution, and most of the node voltages can reach more than 0.95p.u. The simulation results show that the improved krill swarm algorithm can improve the voltage of each node more than the standard krill swarm solution. Comparing with the regulation strategy that does not consider the improved krill swarm algorithm for dynamic reconfiguration optimization of the distribution network and does not use the cluster voltage control model, the average wind abandonment rate, light abandonment rate, and total operating cost of this paper’s regulation strategy are 4.135%, 4.315%, and 620,000 yuan, respectively, which are the best performance among the three regulation strategies.
The housing information system involves personal sensitive data, and the user’s emotional state is crucial to the system interaction experience. This study constructs a housing information system user emotion recognition model based on the random forest algorithm, and explores the problems of EEG signal feature extraction and emotion classification. The study adopts the DEAP dataset and performs feature dimensionality reduction by two types of feature extraction methods, namely power spectral density and differential entropy, combined with SavitzkyGolay feature smoothing and minimum redundancy maximum correlation algorithms. The experiments set different emotion label thresholds on two emotion dimensions, arousal and validity, and compared the emotion recognition effects of decision tree and random forest algorithms. The results show that the classification accuracy of the random forest algorithm in the arousal and valence dimensions reaches 92.2% and 91.0%, respectively, which is much higher than that of the multilayer perceptual machine and close to the discrete emotion model. Compared with the three classifiers, LSTM, KNN and LR, the Random Forest classifier has an average training time of only 522 ms and a test prediction time of 29.6 ms, which is the best overall performance. The study confirms that the random forest algorithm is computationally efficient and resistant to overfitting when processing high-dimensional EEG signal data, and provides feasible technical support for emotion recognition for the optimization of user experience in housing information systems.
The wide application of cloud computing technology makes network security challenges increasingly complex, and traditional single-layer protection strategies are difficult to cope with diverse network attacks. This study proposes a network security emergency response mechanism and data protection strategy based on multilayer protection for the increasingly complex network security threats in cloud computing environment. Methodologically, a Partially Observable Markov Decision Process (POMDP) model is constructed, combined with an attack defense tree for security strategy decision-making, and the defense strategy benefit is quantified by fuzzy hierarchical analysis. The experiments are validated using real cloud platform data, and the results show that: in the analysis of the attack gain matrix, the maximum attack gain value under the high-risk state reaches 14.12; after the implementation of the optimal defense strategy, the defense gain matrix shows that the maximum defense gain can reach 54.8, which is significantly higher than the attack gain; and the experiment of the temporal strategy proves that, when the defense period (3DT) is smaller than the attack period (5AT), the percentage of infected nodes accounts for ratio is only up to 34.75%, and the network system quickly tends to the steady state at t=29s. The conclusion shows that the multilevel protection mechanism proposed in this study can effectively identify the optimal defense strategy and improve the network security level in cloud computing environment, which provides theoretical basis and technical support for practical application.
Data privacy protection in cloud computing environment faces severe challenges, and traditional encryption techniques are difficult to meet the flexible access control requirements. In this study, a cloud computing data protection scheme that integrates attribute-based encryption and access control mechanism is proposed to solve the problem of data security and access control in cloud storage environment. Methodologically, the CP-ABE encryption technique is used in combination with the XACML access control framework to construct a protection mechanism that contains three key phases: system initialization, data storage and data access. The experimental analysis shows that the CP-ABE scheme shows a significant advantage when the number of attributes increases, and the average number of pseudo-tuples increases from 1.5 to 2.25 when the number of attributes increases from 3 to 4. The performance test shows that in the policy attribute revocation scenario, the CP-ABE scheme reduces the computational overhead at the data owner side, and the average number of pseudo-tuples significantly decreases when the number of tuples increases from 1k to 4k, and the average number of pseudo-tuples decreases from 7.6 to 0.94.The CP-ABE scheme with the introduction of joint attributes not only reduces the computational burden on the data owner, but also significantly reduces the overall computational overhead when accessing more attributes of the structural tree, and at the same time ensures the forward and backward security of the data, which realizes the efficient protection and flexible access control of the data in the cloud environment.
Due to the dual impact of fossil energy crisis and environmental pollution, the power systems (PS for short here) of all countries in the world have turned to clean and clean. This has led to the rapid development of wind power generation technology, and the large-scale access of wind turbines has also brought new challenges to the flexibility of the grid. Photothermal power generation is a new type of renewable energy, which has the inertia and adjustability of traditional energy. Its flexible operation mode has obvious advantages in promoting the consumption of renewable energy, participating in power grid peak shaving and standby. In view of the shortage of flexible resources faced by the current PS in the process of low-carbon transformation, as well as the problem that it was difficult to absorb the new energy (NE) concentration areas in the northwest, this text discussed the optimal operation of the NE power generation system. The experimental results showed that the CO2 and SO2 emissions were 41 tons and 62 tons when the proportion of CSP (Concentrated Solar Power) was 20% before DC optimization. After DC optimization, its emissions were 38 tons and 59 tons. With the increase of the proportion of CSP, its operating cost has been significantly reduced, the peak-shaving effect of the unit has been significantly improved, and the pollution emission has been significantly reduced. It can be seen that the application of solar thermal power plant in the system has significant economic benefits, obvious technical advantages, and significant energy conservation and environmental protection benefits.
The MVD (medium voltage distribution) network is the link connecting users in the power system. The MVD network has many lines and users, and traditional optimization methods are difficult to ensure the economy of reactive power compensation and reduce distribution network (DN) losses at the same time. This article constructed a MVD system based on wireless networks and optimizes it through multi-objective genetic algorithm (MOGA), considering the compensation economy of the DN and ensuring power supply quality. This article used a large number of wireless sensor devices to collect DN data, and transmits the collected information to the control center through Zigbee wireless technology. MOGA is used for optimization. This article used genetic algorithms to generate initial populations and continuously generate new offspring populations through crossover and mutation, in order to improve the fitness and quality of population reconciliation. This paper tested the IEEE (Institute of Electrical and Electronics Engineers) 33 node DN model. The unit investment benefit and DN loss after multi-objective genetic optimization in the IEEE33 node DN model were 0.67 yuan and 210kW, respectively; the unit investment benefit and DN loss optimized by traditional optimization algorithms were 0.58 yuan and 222kW, respectively. Multi objective genetic optimization of MVD systems based on wireless networks can simultaneously consider the economy of reactive power optimization and DN losses, meeting the optimization requirements of MVD systems.
This article explored a distribution network path planning method based on artificial intelligence (AI) and optimization algorithms (OAs) to solve multiple problems in traditional research. Traditional methods have limited effectiveness in dealing with complex network structures and dynamic load changes, high computational complexity, and low energy utilization efficiency. To address these challenges, firstly, multiple algorithms were compared and analyzed, and genetic algorithm was identified as the main OA, combined with PSO’s (Particle Swarm Optimization) local search capability for hybrid optimization. Then, this article designed a distribution network path planning strategy based on real-time data and intelligent algorithms, aiming to improve the efficiency of power transmission and energy utilization, and reduce system operating costs. By flexibly adjusting and dynamically optimizing, the distribution network can respond more quickly to changes in load demand, enhancing the overall response capability and stability of the system. In addition, this article also focused on improving the security and reliability of the system, especially whether it can quickly make adaptive adjustments and response measures in the face of emergencies or abnormal situations, in order to ensure the continuous stability of the power grid operation. Finally, the actual effectiveness and application potential of AI and OA in distribution network path planning can be verified. By introducing AI and OA such as genetic algorithm and PSO, significant improvements have been made in the transmission efficiency of distribution networks. Specifically, after optimization, the average transmission efficiency increased by about 0.15%, with an improvement rate of about 21.43%. The total network loss was significantly reduced, with an average reduction rate of about 33.33%. The system’s responsiveness and stability have been improved, and the optimized data is more centralized and stable. The effectiveness of OAs in reducing operating costs and emphasizing their role in improving the economic efficiency of the power system.
Traditional linear regression is difficult to capture complex load changes, has low prediction accuracy, and lacks systematicity in distribution network wiring optimization, which affects power supply efficiency. This paper combines big data with machine learning to propose a grid load forecasting and wiring optimization solution. First, after processing based on the Apache Hadoop framework, real-time data access is performed through Kafka, and real-time analysis and calculation are performed using Spark Streaming. Random forest is used for load forecasting, and data access efficiency is optimized through consumer subscription and asynchronous processing. Grafana is used to monitor over-limit alarms to ensure accurate predictions. Then, load and geographic data are integrated, and K-Means clustering is applied to identify high-load areas. The GWR (Geographically Weighted Regression) model is constructed to evaluate the impact of spatial characteristics on load. Finally, based on the distribution network wiring model of load data, the node electrical parameters are set and the wiring scheme is optimized using genetic algorithm. The experimental results show that the load forecast MAE (Mean Absolute Error) is reduced by 21.58%, and the loss is reduced by 33.16% after the wiring mode is optimized. The comprehensive method based on big data effectively improves the load forecasting accuracy and distribution network optimization efficiency, providing an important reference for the development of smart grids.
As the current concept of sustainable energy continues to take root in the hearts of the people, more requirements are also put forward for the application and development of electric energy. In the field of distribution network, due to the development of smart grid, higher requirements are also put forward for the automatic control of distribution network. Distribution network feeder automation is an important part of distribution network automation system. Its operation status has a direct impact on the implementation effect of distribution network automation system. In order to better promote the operation level of distribution network feeder automation, based on the analysis of distribution network automation theory, combined with the currently popular medium-voltage high-speed analog communication technology, this paper indicated that it can be used in distribution network feeder automation, and emphatically analyzed the application of medium-voltage high-speed analog communication technology in distribution network feeder automation. Through research, it was found that this technology had good application value in distribution network feeder automation. It can improve the anti-attack of Circuit 4 and Circuit 1 communication data by 12% and 17.2% compared with traditional methods. In addition, this technology can effectively reduce its fault location isolation detection and power recovery time, and improve power quality and power safety. In addition, the research on distribution network feeder automation in this paper can also enrich the content of energy research and promote the sustainable development of energy.
The comprehensive energy distribution network (DN for short here) integrates multiple energy sources, which is the main direction for the development of the power system DN. To solve the problems of low efficiency in collaborative allocation between power sources, power grids, and loads in traditional integrated energy DN coordination operation models, difficulty in meeting power quality requirements, and susceptibility to interference from external environmental factors, this article analyzed the traditional integrated energy DN coordination operation model. This paper summarized the key technologies of the distribution scheme between the coordinated operation power supply, power grid and load, and optimized the coordinated operation structure of the integrated energy grid based on the distribution demand and particle swarm optimization algorithm. This can improve the intelligence level of the decision-making scheme for coordinated operation of source network load. Finally, this article conducted comparative experiments to verify the performance improvement of optimizing the comprehensive energy DN. From the results of the comparative experiment, it can be seen that compared to traditional comprehensive energy DN, the optimized comprehensive energy DN has shorter decision-making time, better equipment management ability, and stronger risk response performance. In the application comparative experiment, the evaluation index of risk response performance increased by 18%. The optimization of the comprehensive energy DN in this article has played an important role in the development process of the DN, and it is one of the excellent solutions to promote large-scale energy allocation and consumption. Its coordinated operation between power sources, power grids, and loads is also more efficient and smooth, fully tapping the potential of various energy sources, and it has more objective prospects in technological updates and iterations.
This paper constructs a safety belt intelligent monitoring system for power grid construction scenarios, realizing real-time monitoring and early warning of safety belt status through hardware and software co-design. Relying on acousto-optic controller to realize real-time feedback of buckle status, mosaic enhancement and environmental noise simulation are used to improve data diversity. The YOLO network is improved by introducing cavity convolution and depth separable convolution to optimize the feature extraction efficiency, and combining with progressive attention area network to enhance the feature characterization ability of small targets. Experiments show that the accuracy, recall, and AP value of the improved YOLO-DCM-DSCM-PAAN algorithm are improved by 5.65%, 1.07%, and 3.88%, respectively, compared with the YOLO algorithm. After the introduction of the DCM module, the mIOU value and F1 score of YOLO-DCM reached 0.83 and 0.81, respectively. The ablation experiments show that Experiment 4 fuses the two modules, DSCM and PAAN, and improves the mIOU and F1 scores by 6.0% and 7.4%, respectively, on the basis of Experiment 1, which is a more obvious improvement. The detection accuracy of the proposed improved algorithm reaches 96.91%, which is 2.45% higher than the YOLOX algorithm. It proves that the improved algorithm in this paper can meet the demand of real-time monitoring of complex construction scenarios, and the study provides an innovative and intelligent solution for electric power operation safety.
As the core equipment of high-voltage direct current (HVDC) transmission system, the health status of the converter valve directly affects the stability of power grid operation. In this paper, we propose a fusion of modal analysis and multi-source data-driven method for extracting the time-varying laws of electrical features and health monitoring of the converter valve. The multidimensional vibration feature map is constructed, and the multi-scale features of the vibration signal are extracted by combining the time-domain trajectory image, Markov variation field and wavelet packet transform. The short-circuit fault characteristics and protection principle of the converter valve are analyzed, and a valve state discrimination model based on current timing characteristics is established. The effectiveness of the method is verified through simulation and engineering experiments, and the proposed method can realize the state discrimination of converter valve fault characteristics. Considering all 405 power modules of the whole bridge arm, the error of capacitance capacity estimation based on field data is within 1%, and the accuracy of fault detection for short circuit on AC side of converter valve, short circuit on converter valve and short circuit on DC side of converter valve reaches 99.88%, 99.86% and 99.91%, respectively.
The real-time status monitoring of key components of the converter valve affects the stable operation of high-voltage direct current transmission system. This paper proposes an adaptive dual-threshold edge detection algorithm for the limitations of traditional filtering algorithms in noise suppression and edge retention. By improving the convolutional kernel and dynamic thresholding strategy to improve the key components of the image signal feature localization accuracy. The Yolov5s model is adopted to realize efficient feature extraction and target detection of non-electrical signal images. And the model robustness is enhanced by combining the strategies of adaptive anchor frame calculation and Mosaic data enhancement. The results show that under the same noise density, the peak SNR of the edge detection algorithm in this paper is 29.67db and the SSIM is 94.25%. Under different noise densities, the peak SNR is always maintained at 30db-45db. 3 classes of image edge detection with 4.28*107, 5.73*107, 5.87*107 edge connectivity. The loss value of the training process is stabilized at 0.005 around 150 times and the recall is closer to 1, which has faster convergence speed and convergence stability.
Fast detection of business data reduces the impact of automated systems by anomaly scheduling. In this paper, we address the limitations of traditional unsupervised anomaly detection methods, such as leakage detection, and design an anomaly detection method based on meta-learning hybrid selection integration (Meta-HESAD). Methods such as compact time series and isolated Senri are introduced to accomplish the base detector required for downscaling and anomaly detection of multimodal data. The adaptive filtering algorithm is optimized with improved Sigmoid function to improve the stability and convergence speed of the data anomaly detection process. The results show that the average value of the adaptive filtering algorithm is 0.9851, which is higher than that of the comparison algorithms, 0.8007, 0.8286, 0.8456. When the detection probability reaches 1.0, the false alarm rate of this paper’s algorithm is smaller than that of the three comparison algorithms. In practice, the detection accuracy probability of this paper’s algorithm exceeds 90% in all 10 iterations.
This study takes U26Mn2Si2CrNiMo bainitic austenitic steel as the object, and systematically investigates the micromechanical role and morphological evolution mechanism of inclusions in its tensile fracture behavior. The influence of the cooling process on the organization evolution is analyzed by establishing a temperature field model, and the variation rule of mechanical properties is revealed by combining room temperature and low temperature tensile experiments. The microstructural features are characterized by multi-scale microscopic techniques such as metallurgical microscopy, scanning electron microscopy and transmission electron microscopy. The results show that the normalizing final cooling temperature affects the distribution of grain boundary mismatch angle and residual austenite by regulating the degree of bainite phase transformation, which in turn changes the material toughness and toughness, and the full austenite organization is realized under the final cooling condition of 320℃. The La element addition caused the average size of inclusions to decrease and then increase, with H1, H2, and H3 varying to 0.62 μm, 0.43 μm, and 0.49 μm. The material strength and plasticity are synergistically enhanced under lowtemperature tensile conditions, and the pulse current treatment reduces the work-hardening capacity through softening effect. This paper provides a theoretical basis for the control of inclusions and process optimization of steel for railroad turnout heart rails.
From the perspective of industrial integration, we constructed a systematic integrated development evaluation system of culture and tourism industry, and used the improved entropy value method and the integration degree model to measure and analyze the systematic integrated development level of culture and tourism industry in Southwest mountainous provinces from 2012 to 2020. The results found that: (1) the comprehensive development level and integration degree of culture industry and tourism industry in southwest mountainous provinces generally show a fluctuating upward trend. At the current stage, the integrated development of culture and tourism industry system is in a stable stage, and the evolution state is intermediate coordination tourism industry lagging type. (2) The integration process of culture and tourism industry system in southwest mountainous provinces has experienced three stages of development, namely, “starting – stabilization – maturity”, showing “on the verge of dissonance – barely coordinated -Primary coordination-Intermediate coordination-Good coordination”. (3) The regional heterogeneity of the comprehensive development level and integration degree of the cultural and tourism industry system in the mountainous regions of Southwest China is obvious, and the integration pattern as a whole shows the dynamic evolution characteristics of “on the verge of dysfunctional dominance, intermediate coordination aggregation, and interlacing of middle-secondary and high-level coordination”. On this basis, the deep integration strategy of culture and tourism industry system is proposed.
This study develops an entropy-based evaluation model to quantify meaning loss in knowledge reproduction through social media paper-reading activities. Using a mixed-methods approach, the research analyzed 420 paper-reading posts across WeChat, Zhihu, Bilibili, and Twitter, examining how academic knowledge transforms during digital dissemination. The entropy model conceptualizes knowledge reproduction as an information transmission process where entropy increases along dissemination chains, with preservation rates varying significantly across platforms. Validation testing confirmed strong correlation between algorithmic and human assessments (r = 0.84, p < 0.001), with the model successfully identifying 92.3% of expert-classified highdistortion cases. Results revealed distinct platform-specific entropy distributions, with structured knowledge environments demonstrating lower entropy values (Zhihu: M = 0.38, SD = 0.13) compared to microblogging formats (Twitter: M = 0.59, SD = 0.16). Cross-disciplinary analysis showed significant entropy variations across knowledge domains (F(3, 416) = 24.38, p < 0.001), with physics/mathematics content exhibiting the lowest entropy (M = 0.32, SD = 0.11) and social sciences the highest (M = 0.53, SD = 0.15). Multiple regression analysis identified content creator expertise as the strongest predictor of low entropy (β = -0.43, p < 0.001), followed by audience domain knowledge (β = -0.37, p < 0.001). Multimodal integration demonstrated a buffering effect against complexity-driven entropy increases, reducing entropy values by 0.14 on average. The study provides both theoretical advancements in understanding digital knowledge transformation mechanisms and practical applications for improving scientific communication in social media environments. The findings suggest that effective knowledge dissemination requires strategic adaptation to platform-specific constraints, with integrated multimodal presentation strategies showing particular promise for preserving meaning across all disciplines and platforms examined.
Aiming at the problem that it is difficult to accurately detect network malicious activities and unable to effectively analyze the network condition with single-point network data, this paper introduces the improved DS evidence theory, constructs a network security multi-source heterogeneous data fusion model, and applies the model to assess the network security posture on the basis of ensuring the model’s effectiveness and finally realizes the design of network security expert system. The experimental results show that compared with the recognition technology based on PSO-TSA model and the recognition method of network security posture elements based on clustering algorithm, the DS recognition framework in the data fusion model of this paper is able to recognize the network information security posture elements more accurately, and it can effectively safeguard the network information security to adapt to the increasingly complex network environment. Network security expert system managers should pay attention to assessing the network security posture from the service, host, network and other levels, and take targeted measures. The system in this paper is able to understand complex network security issues and provide targeted solutions and recommendations, which can greatly improve the response speed and processing quality of network security incidents.
As one of the important applications of modern technology, the research on optimization of smart home products’ functional modules has been paid more and more attention. This paper constructs a knowledge model of smart home products based on user behavior data, uses the data as the basis for the functional design of smart home products, and applies the KANO model to analyze each demand in the user demand library. Based on the demand transformation method of QFD, the mapping relationship between personalized demands and product design parameters is established, and the correlation matrix of basic demand items and design parameters is constructed to realize the transformation of personalized demands. Applying the functional module optimization and design method proposed in this paper, we carry out the practice of optimizing the design of intelligent treadmill functional modules, and obtain the design requirements and design solutions of intelligent treadmill products. In terms of the review results, both experts and users rated the product within 4~5, which is a high overall rating.
In the context of the development of regional tourism, the planning pattern of accommodation facilities in tourist attractions plays a very important role in enhancing tourists’ experience perception, which is conducive to the enhancement of tourists’ goodwill towards tourist attractions. This paper is oriented to the theory of sustainable development, and selects GL city as the research case site to obtain the visitor evaluation data of accommodation facilities in tourist attractions. The evolution trend of tourist attraction accommodation facilities is analyzed by geographic concentration index, standard deviation ellipse, nearest neighbor index, combined with TF-IDF algorithm to extract high-frequency words of tourists’ experience on the planning of tourist attraction accommodation facilities, and coarse-grained tourism review text sentiment classification model is introduced to analyze the tourists’ sentiment evaluation of tourist attraction accommodation facilities. The geographic concentration index of accommodation facilities in tourist attractions increases from 20.19 to 53.72 from 1980 to 2023, and the relative frequency difference between “service” and “room” of hotel facilities in tourist attractions is 4.35 percentage points, while that of B&B is only 0.5 percentage points. The relative frequency of “service” and “room” of hotel facilities in tourist attractions differed by 4.35 percentage points, while that of B&Bs differed by only 0.77 percentage points, and more than 70% of the tourists had a positive attitude towards the experience of accommodation facilities in tourist attractions. Lodging facilities in tourist attractions need to enrich the sequence of lodging products, improve the layout of service and reception facilities, create relevant themed B&Bs, and enhance the service quality of lodging facilities by combining modern technology to further promote the sustainable development of lodging facilities planning.
The emergence of 3D printing technology has brought about a revolutionary change in the creation and design of ceramic artwork, which is not only able to quickly and accurately produce complex ceramic structures, but also able to achieve personalized customization and creative design, which has injected a new vitality into ceramic art. In this paper, after analyzing the application status of 3D printing technology in personalized ceramic artwork, we explored the method of generating the image of ceramic artwork based on genetic algorithm, after comparing the traditional and multi-objective optimization two kinds of 3D printing task scheduling methods, we established a 3D printing multi-objective optimization task scheduling problem model, combined with the improvement of particle swarm algorithm for solving the problem, and got the closest point to the ideal point as the optimal solution as: \(\theta_{1} =180°, \; h=0.201mm,\; \Delta V =336.22mm3, \;T=342\). In the analysis of ceramic artwork modeling based on perceptual imagery, it is found that the perceptual vocabulary corresponding to Sample 2 and Sample 3 is more inclined to the rounded, simple, and practical among the four influencing variables of the structural factors.
This paper proposes an image gradient extraction method that fuses luminance information with chromaticity information. The method introduces the CIE-L*a*b* color model based on the human eye vision model to obtain the chromaticity gradient information on the basis of retaining the luminance gradient information, while the normalized luminance gradient and chromaticity gradient are later fused with the gradient. Afterwards, to balance the local contrast and color fidelity image enhancement effects, the Retinex algorithm with multiple scales was selected to better process the image. An end-to-end small-scale CNN model is constructed for color correction, and then a multi-scale Retinex model is used for texture enhancement, which integrates the color restoration and texture enhancement of the image, and the texture blurring and color deviation problems of the underwater image. The results show that the entropy value of the image increases from the original 6.5847 to 7.6014 after the processing of the method in this paper, which shows that the entropy value of the image can reflect the difference of the image contrast. After qualitative and quantitative analysis, it is found that the color bias of the underwater image enhanced by the method of this paper is effectively corrected, and the problem of color distortion is significantly improved. Meanwhile, the contrast, sharpness and saturation of the image are improved significantly, which proves the superiority of the proposed method in this paper compared with other methods in underwater image enhancement.
In order to improve the quality of UAV application in highway pavement construction, the study firstly establishes the mathematical model and formation model of pavement construction UAV. Then a path planning algorithm based on improved RAPA is designed, which optimizes the search process by combining the jump point search algorithm. And the loopback force is introduced into the artificial potential field method to improve the local minimum problem, which is applied in planning path and obstacle avoidance. Finally, the sliding mode path tracking control law is designed for the motion model and attitude model of the pavement construction UAV respectively to ensure the accurate tracking of the construction path by the pavement construction UAV formation. The study is simulated and verified in MatlabR2018a, and the three UAVs are able to ensure smooth obstacle avoidance with smooth paths, continue to track the target effectively, and maintain a safe distance of more than 100m from all obstacles. The engineering application results of 8 pavement construction UAVs show that the proposed path planning method can carry out the pavement construction path planning in each material area, and the unmanned milling machine fleet can automatically avoid obstacles and guarantee the milling efficiency during the operation. In order to further guarantee the construction safety, the application effect of unmanned machine is improved through the measures of selecting the best unmanned machine equipment, making good planning and designing of aerial photography operation, making good use of the results of aerial photography, and enhancing the integration of technology and other means.
In order to solve the problems of high labor intensity, high safety risk and low efficiency of manual loading and unloading under high temperature and high noise environments, this paper designs a loading and unloading control system based on the 3D high-precision vision guidance technology with PLC equipment as the control platform and a six-axis industrial robot as the flexible drive source, and constructs the position servo mathematical model of the unloading equipment under the perturbed working condition, and utilizes the fuzzy neural network PID (FNN-) PID) control algorithm to realize the position control optimization of the loading and unloading equipment. the output parameters \(K_{p}\) , \(T_{i}\) and \(T_{d}\) of the FNN-PID control algorithm can adaptively change the output values based on the fuzzy rule-base with the change of inputs, and it can inhibit the swing angle of the lanyard from 12 degrees to be stabilized at 0 degrees within 24s. Nearby, the tracking effect and anti-swing effect are significantly better than FPID control. This paper adopts the robot vision guidance unloading, so that the unloading control system has obvious improvement in the guiding speed and accuracy, and has high engineering application value.
This study aims to construct a scientific weight allocation model of English education evaluation system to improve the scientificity and objectivity of English education evaluation. This paper constructs an English education evaluation index system containing fifteen secondary indicators and five primary indicators. Based on the defects in parameter selection of the standard projection tracing model, this paper introduces the particle swarm optimization algorithm to optimize the parameters of the model, and combines the quality evaluation mathematical model based on segmental interpolation method to assign the weights of English education evaluation indicators, which accurately reflects the contribution of each indicator. In the experimental part, this paper compares the model optimized by the particle swarm algorithm with the standard projection tracing model, and finds that the relative error of this paper’s model is reduced by 0.61% compared with the standard projection tracing method, and it can effectively identify the key evaluation indicators, and identify the school leadership level as the most critical English education evaluation indicators. The study provides English education administrators and teachers with more referential evaluation information, which contributes to the scientificization and standardization of the English education evaluation system.
Civic and political classroom teaching in colleges and universities is not only the key course to implement the fundamental task of establishing moral education, but also the first position to popularize the rule of law education. This paper integrates the traditional culture of the rule of law into the virtual reality classroom teaching of college Civics, proposes a virtual reality classroom teaching design model for college Civics, and explores its impact on the comprehensive ability level, Civics performance and rule of law conceptualization literacy of college students. Taking X university in G city of Ningxia Hui Autonomous Region of China as the research site, experimental and control classes were set up to carry out the experiments on the virtual reality classroom teaching of Civics in colleges and universities, and the results of the data were analyzed by independent samples t-tests. The students in the experimental class are higher than the students in the control class in terms of the mean value of the comprehensive ability level, the dimensions of the concept of rule of law literacy and the performance of Civic and Political Science, and the Sig value is less than 0.05, showing a significant difference. The virtual reality classroom teaching design model of Civics in colleges and universities proposed in this paper can have a positive impact on students’ comprehensive ability level, Civics achievement and rule of law literacy.
Based on the relevant concepts of quantum entanglement and the basic principles of quantum information, this paper focuses on the generation process of three-body high-dimensional entangled states between magnets and photons in the Uptime (PT)-symmetry-breaking phase, and clarifies the dissipation and evolution process of three-body high-dimensional entangled states for the system in this paper. Finally, it is generalized to the hybrid photon-magneton oscillator system in the action of electromagnetic waves to explore whether the perfect transmission of quantum states can be realized under the condition of one-dimensional magnetic oscillator openchain arrangement. The results show that the introduction of three-body high-dimensionality can not only effectively enhance the entanglement, but also effectively enhance the entanglement resistance to environmental interference, so that the system can operate stably in a wider range of parameters. The scheme in this paper can utilize the optical cavity dissipation to keep the quantum state stable at the receiving end. In addition, the spontaneous radiation of atoms is significantly suppressed due to the adiabatic elimination of the excited state, which makes the scheme more robust. Meanwhile, based on the existing experimental techniques, the scheme has high experimental feasibility, and the fidelity of its transmitted state at the receiving end can reach more than 99.74%.
With the continuous exploration of AI application fields, the application of “AI+Education” in the higher education market is also deepened. The article studies the personalized recommendation learning method based on deep knowledge tracking. The method adopts a dynamic key-value memory network that integrates the attention mechanism, and extracts and stores the features between students and marketing training exercises. Students’ dynamically changing marketing competency levels are tracked by a bidirectional gated recurrent unit neural network. The method of two exercises filtering is designed to calculate the cognitive similarity, the similarity of the difficulty of the exercises and the difficulty of the exercises of the students to achieve the recommendation of personalized exercises for senior marketing majors. The accuracy, novelty and diversity of the recommended exercises of this paper’s method are improved compared with the comparison model, and its recommendation accuracy is improved by 4.00% on the ASSISTment2009 dataset compared with the sub-optimal model. The posttest scores of the experimental class based on this paper’s personalized recommendation learning method gained significant improvement compared with the pre-test, and also gained significant improvement compared with the posttest scores of the control class. It shows that the method of this paper can provide reliable learning resources recommendation for senior marketing students and is suitable for personalized teaching by senior marketing teachers.
The classroom is the main battlefield of teachers’ work in higher vocational colleges and universities, and good quality of classroom teaching is not only the transfer of classroom knowledge, but also an effective means of implementing the fundamental task of establishing moral character. In view of this, the article first explores the influencing factors of the teaching quality of teachers specializing in marketing in higher vocational colleges. On this basis, it constructs a predictive model of teachers’ teaching quality based on the decision tree model, utilizes hypothesis testing and feature importance for feature selection, and proposes the SHAP additivity interpretation method to interpret the decision tree model by categories. The study shows that the constructed prediction model can achieve better prediction performance, while using the SHAP interpretation method, three kinds of teaching quality driving factors analysis are realized, and it is concluded that the subjectivity factor’s has the greatest contribution in the improvement of teachers’ teaching quality, and its SHAP value is 0.68. The relevant parts of the school can improve the teaching level of teachers of marketing majors in higher vocational colleges and universities from the aspects of improving the teaching level of teachers, stimulating the interest of students in learning and improving the teaching guarantee system.
In the Internet era, recommender systems have become very important in daily life, and the combination of Generative Adversarial Networks (GANs) and recommender algorithms provides new opportunities for the development of this field. In order to solve the problem of computer education course resource recommendation, this paper combines the collaborative filtering recommendation algorithm and the sequence generation adversarial network to construct a generative adversarial network (MGFGAN) recommendation model with multi-dimensional gradient feedback, and designs a computer education course resource recommendation system with this as the core algorithm, and explores its role in improving the teaching effect. Compared with ItemPop, MF-BPR, and MGFGAN-I based on user interaction vectors, MGFGAN-A based on user attributes achieves optimal values in all recommendation performance indicators, and improves the performance of Precision@10, Recall@10, NDCG@10, MRR@10, and MRR@10 compared with MGFGAN-I, respectively. 0.0594, 0.0103, 0.0392, and 0.0829, respectively. Using the systematic clustering method, the results of the cluster analysis of the performance of the students in the experimental group using the recommender system of this paper and the control group not using the recommender system show that the experimental group of students achieved better results. This paper provides a methodological path for using generative AI to improve the teaching effectiveness of computer education.
This paper uses multiple regression analysis to construct a prediction model of online learners’ academic performance. The English online classroom learning data of 448 college students in college B are taken as the object of analysis. From them, four indicators, namely, the number of study times, daily study time, daily study frequency, and task point completion, were selected as independent variables, and learning achievement was taken as the dependent variable. The regression coefficients of each variable were determined by stepwise multiple regression, and the final regression model of academic performance was determined as \(Y = -8.632 + 0.99x_1 + 0.231x_2 + 0.485x_3 + 0.286x_4\) . The results of the constructed prediction model of online learners’ academic performance are basically accurate through the discrimination of sample independence, residual normality test, and the discrimination of the absence of multiple covariance in the independent variables, respectively. Teachers can formulate teaching plans and carry out personalized tutoring according to the English online classroom learning data, and verify the learning effect by comparing the before and after data.
As one of the most important Chinese cultural classics, the study of English translation of The Analects of Confucius is also a hot research topic in the field. Based on statistical machine translation, which is a mainstream method in machine translation, this paper combines two methods of obtaining word vector space representations and word embedding representations, namely, Point Mutual Information (PMI) and Word2vec, to construct a translation model based on word semantic distributions, which provides technical support for the English translation of The Analects of Confucius. The English translation model of this paper is used to integrate and analyze the philosophical connotation of the word “Body” in the Analects, and to explore the acceptability of the English translation results to the readers. The main philosophical connotation of the word “body” in the Analects is to be self-oriented and Tao-oriented. The former is to start all moral practice from self-reflection and cultivation, while the latter is to the individual’s “body” beyond the ego and finally integrate into the Confucian order with “benevolence” and “propriety” as the core. The mean syntactic acceptability of Chinese and foreign readers is 3.25 and 3.12 respectively, and the mean main idea acceptability is 3.32 and 3.15 respectively, all of which are in the range of 2.5~3.5, presenting a basically acceptable attitude.
In this paper, regional real estate evaluation indexes, real estate input and output efficiencies are sorted out. Under the condition of constant returns to scale, a three-stage DEA method is used to equalize the relative efficiencies of decision-making units in multiple-input and multiple-output problems, and the three-stage DEA method is combined with the Malmquist index method to form a Malmquist-DEA dynamic evaluation model, which in turn reflects the changes in total factor productivity over successive periods. The spatial autocorrelation method and Markov chain are used to explore the patterns and trends in the distribution of geospatial data variables. The results show that the overall total factor productivity index and technical efficiency increased by 2.77% and 3.05% on average, while the technical progress index decreased by 0.27%. The increase in the technical efficiency index is the main reason for the increase in total factor productivity in China’s real estate industry. The total factor productivity index as a whole shows that eastern > central > western regions, similar to the economic development situation. The total factor productivity of different provinces shows strong regional differences, and real estate development is affected by neighboring cities in the short term, making it difficult to achieve transfer across stage levels, and the degree of risk of transferring to a low level state is low.
The organic combination of culture and tourism can promote the effective dissemination of tourism culture, and the enhancement of cultural popularity can lead to the increase of local economic income. The article adopts the tourism economic data of 10 tourism provinces in China, analyzes the correlation relationship between tourism culture and local economy based on MS-VAR model and regression model, and then uses the network analysis method to portray the spatial correlation network between tourism culture and local economy. The final conclusions are: the promotion effect of local economy on tourism culture is smaller than the promotion effect of tourism culture on local economy, and for both of them, the biggest promotion effect is still their own factors. The change trend of local economy for the promotion of tourism culture is weaker, and the promotion of tourism culture for the local economy is more obvious.
Aiming at the supply chain path optimization problem of manufacturing enterprises, this paper constructs a multi-objective model based on the total cost of supply chain and carbon emission. Based on the traditional ant colony algorithm, the hybrid ant colony algorithm incorporates the uniparental genetic algorithm to improve the convergence speed of the algorithm and save computing resources. The example experiment verifies that the uniparental genetic hybrid ant colony algorithm outperforms the basic ant colony algorithm and the chaotic ant colony algorithm. A residential construction enterprise project in X province is selected as the research object, and the uniparental genetic hybrid ant colony algorithm is used to realize the multi-objective optimization of assembly building supply chain cost-carbon emission. The optimal total cost and carbon emission of the supply chain solved by this paper’s method are 1196101 yuan and 252721 kgCO2 respectively, which are better than that of the chaotic ant colony algorithm. The optimization of the assembly building supply chain with both economic and environmental benefits is realized, which provides decision-making guidance for the production plan of assembly building supply chain.
Three-dimensional geological modeling of shale gas reservoirs can reveal the characteristics of reservoirs and physical parameters, which is of great significance for shale gas exploration and development. In this paper, the shale of Dalong Group in Lianyuan Depression in central Hunan Province is selected as the research object, and the ground level interpolation method is used to realize the three-dimensional geological modeling of shale gas reservoir, and the shallow shale gas reservoir in Lianyuan is compared with the typical shale gas reservoirs in central Hunan Depression, to summarize the characteristics of the shallow layer and analyze the developability. On this basis, the quantitative analysis method of physical properties of shale gas reservoirs was further optimized. The results show that the mineral composition and physical characteristics of the Dalong Formation at different depths are basically the same. The Dalong Formation in Lianyuan, Hunan Province, has high organic matter abundance and good organic matter type, belongs to the over-mature stage, has the physical characteristics of low porosity and low permeability, and its main gas-bearing type is adsorbed gas, and the brittleness of the reservoir and the geostress conditions are similar to those of the deeper layers, which indicates that the shallow Dalong Formation of Lianyuan has good exploitability, and it is a favorable direction for shale gas development. The results of this paper and the proposed evaluation grading standard can provide an important basis for the precise evaluation of shale reservoirs and the selection of favorable zones in Hunan Province.
The rapid development of e-commerce has brought great opportunities for experiential retailing practices, but also faces the challenge of sustainable development. Under the background of experiential retailing, this paper constructs a model of the influence of sensory marketing on customer loyalty from the three dimensions of sensory marketing, brand relationship quality and customer loyalty, and constructs a structural equation model based on the partial least squares method, and selects enterprise A, which mainly engages in coffee products, as the research object, to investigate the influence mechanism of sensory marketing on customer loyalty by the method of questionnaire data analysis. The results of the study show that among the four dimensions of sensory marketing, only action experience can directly have a positive effect on customer loyalty, while the three dimensions of sensory experience, emotional experience and thinking experience can indirectly have a positive effect on customer loyalty by having a significant positive effect on brand relationship quality. When brand relationship quality is introduced, the influence of sensory marketing on customer loyalty decreases, verifying the mediating role of brand relationship quality between sensory marketing and customer loyalty. The research in this paper makes a theoretical foundation for marketing strategies such as enhancing customer loyalty and customer sensory experience, and suggests managers to market corporate brands from the perspective of senses such as sight, smell and taste.
Taking the construction of higher education quality assurance as the research objective, this paper designs the framework of higher education quality assurance platform containing seven modules: quality planning, teaching process, quality monitoring, efficient data, quality evaluation, basic data and system management. Based on the hierarchical analysis method, the assignment steps and methods of evaluation system indicators are detailed. K-means mean algorithm is adopted as a distribution analysis tool for the indicator scoring data. Under the theoretical framework of the above method, a higher education evaluation system containing 19 indicators is proposed based on the five teaching quality criteria, namely, the guiding ideology of running a school, the management of the teaching process, the teaching conditions, the learning support service system, and the educational and teaching effects. The validity of the index system is verified by calculating the fuzzy evaluation matrix and extracting the common factor. Applying the higher education quality evaluation index system to assess the teaching quality of University X, it gets a perfect score close to 5.00 on the guiding ideology of running a school, and performs poorly on the teaching conditions with only 2.97. The study points out that the platform of higher education quality assurance should be constructed from the outside to the inside by means of digital technology, by means of rationally adjusting the disciplinary settings, and by means of supervising the teaching process.
In the era of big data, the news form of cultural communication is closely related to its dissemination depth and coverage. This paper takes news information as the research object and explores its morphological innovation path based on neural network algorithm. The characterization method of complex network is briefly analyzed as the theoretical basis for the research. Two commonly used key node description indexes, namely, compact centrality and median centrality, are successively described, and the PageBank algorithm is adopted to identify the important nodes in the process of network news dissemination. Considering the multimodal information in the process of news dissemination, a variant of BERT model (HFBM) based on the Transormer model is introduced, and a convolutional neural network is used to extract the modal eigenvectors of tagged words of news information. The model performs classification and prediction of news information sentiment by fusing modalities and their corresponding feature vectors. Combining the above, the model method design of news feature mining and prediction based on BERT model is completed. At the same time, it elaborates the characteristics of news dissemination in the era of fusion media, and combines the proposed news feature mining and extraction algorithm to realize the innovation of the news form path of cultural dissemination. In the news forwarding volume prediction module constructed based on the proposed algorithm, the algorithmic model of this paper always maintains better prediction results during the whole information dissemination process (within 15h). It shows that the designed news feature mining and extraction algorithm is able to accurately model and predict news dissemination trends.
This study takes college students’ English learning behavior as an entry point and proposes a learning behavior analysis model based on multilayer perceptron (MLP). Through the synergy between the interactive feature capture module and the basic feature capture module, the accurate modeling of higher-order features such as learning concentration and initiative is realized. The English learning behavior data of 218 students were collected through the TULIP Smart Learning Platform, and a four-dimensional indicator system containing learners’ basic information, operational behavior, collaborative behavior and problem solving behavior was constructed. In the teaching experiment, the designed MLP model realizes the accurate prediction of key behaviors such as learning concentration and initiative through the interactive feature capture module and the basic feature capture module. More than 90% of students chose to agree or strongly agree in the survey results of each test item of the modelassisted learning dimension. More than 90% of students believe that remedial learning is able to target their weak points, reduce their study load and improve their learning outcomes. More than 90% of the students said that the personalized teaching strategy is compatible with their own learning habits, and the average score of the personalized teaching strategy dimension is 4.63, which proves that using the proposed model to analyze learning behaviors and formulate targeted personalized teaching strategies can effectively improve learning effectiveness.
The increasing number of online resources makes effective matching of students’ individualized learning needs become the focus of the teaching reform of ideological and political theory courses. In this paper, we construct students’ user profiles in two directions: dynamic and static, and utilize Jaccard and cosine similarity to calculate the similarity of user profile features. The Louvain algorithm is introduced to divide the community of “user characteristics-user-item-item characteristics” association network to improve the efficiency of resource recommendation. We design an improved collaborative filtering model based on a multi-layer resource recommendation matrix, and generate a dynamic resource list by combining the time decay function to correct students’ interests. The results show that the model improves the recommendation performance by 10.03%-73.47% compared with other benchmark methods. Practical teaching applications improve students’ self-initiated motivation and learning efficiency at the 0.01 significance level. The number of students with high scores (≥90 points) increased from 16.3% to 26.2%. The resource recommendation model based on the improved collaborative filtering algorithm can realize the effective recommendation of resources and assist students to improve the level of Civics Theory course.
The second-order nonlinear optical effects that may arise from the interaction between solid materials and light are the current research hotspots in the field of laser technology. In this paper, the nonlinear optical effects and characteristics in solid state physics are taken as the research object, and the finite element analysis technique, which has higher solution accuracy and can get rid of the limitations of actual physical conditions, is adopted as the research tool. The steps of FEA model generation are explained. Then, three common second-order optical frequency conversion phenomena in one-dimensional nonlinear photonic crystals are summarized, and the corresponding phase matching methods are presented. On this basis, the intrinsic physical mechanisms and processes of various nonlinear optical effects in the optoelectronic integration platform (SOI optical waveguide) are discussed. The theoretical modeling framework of various nonlinear optical effects in different solid-state physical materials is thus formed. With the technical support of the above analytical methods and theoretical models, a mode-locked fiber laser is designed for pulsed laser applications based on the nonlinear optical characteristics of the solid-state physical material graphyne. The laser was tested experimentally for 10h and the output power was kept at 2.31mW with good stability.
Utilizing the flipped classroom to improve the quality of English translation courses is one of the key points to promote the reform of English teaching. This paper constructs a flipped classroom English translation teaching evaluation index system based on the feasibility of flipped classroom in English translation teaching. A comprehensive indicator system with comprehensive connotation is established from the three dimensions of teacher teaching, student learning and platform environment, and the indicators are optimized according to the experts’ consultation. After obtaining the relevant evaluation index data through the questionnaire survey, the entropy weight method was chosen to calculate and analyze the data to judge the influence of each index on teaching. The results show that the weight of platform environment among the first-level indicators is the largest, reaching 38.97%. The weight of learning resources is the largest among the secondary indicators, which is 15.18%. Combined with the positive and negative ideal solutions and the relative closeness calculation results, it is found that the learning resources indicator is the indicator with the greatest influence on the teaching of English translation in the flipped classroom, and the relative closeness is 0.8128. Optimizing the learning resources of the platform can improve the students’ motivation to participate in the flipped classroom of English translation and the level of learning.
Driven by digital technology, this study systematically constructs an innovative model for student management in colleges and universities, and proposes a full chain management methodology through demand analysis, functional modeling and dynamic behavior mining. Based on the actual needs of colleges and universities, a system architecture covering authority control, multi-role interaction and dynamic configuration capability is designed. The improved K-means clustering algorithm is used to classify student learning habits into clusters, and lagged sequence analysis (LSA) is used to reveal the temporal correlation of learning behaviors. The empirical analysis relies on the behavioral logs and questionnaire data of MOOC platform, and finds that the sequence of learning behaviors is significantly correlated with course grades, e.g., the correlation coefficient of participating in the assessment after reviewing is 0.244, and the correlation coefficient of negatively affecting the grades by overlearning the new content is -0.298. The characteristics of campus network use classify the students into academic focus type 384, recreational and social type 1,032, balanced multitasking type 1807, and light use type 1,000. 1807 and light-use type 169, and their traffic distribution showed significant differences. During the semester, there are key turning points in behavioral patterns (week 5 and week 12), and students’ behaviors show stage-bystage evolution, e.g., group C dynamically adjusts from “diligent mode” to “result-oriented”. Data-driven behavioral modeling and time-series analysis can provide a scientific basis for personalized resource recommendation, precise intervention and dynamic management strategy optimization, and help university student management transform to intelligence and refinement.
Performance evaluation is not only a reflection of the results of the enterprise’s operational performance, but also an important reference for the optimization and improvement of enterprise performance management. This paper takes enterprise performance evaluation as an entry point, describes the design idea of enterprise performance management evaluation index system, and compares and analyzes the focus and shortcomings of two kinds of performance management tools, namely, balanced scorecard and key performance indicators. The uncertainty of the evaluated object in the process of performance management work is regarded as a random variable, and entropy is used to measure it. After completing the research preparation on the mathematical definition of entropy, the performance evaluation idea of CART decision tree algorithm is discussed by taking the example of R&D project of enterprise A. The performance evaluation model based on CART decision tree algorithm is constructed through three steps of defining variables, generating decision tree and pruning decision tree. Compared with similar modeling algorithms, the evaluation accuracy of the designed performance evaluation model on different performance data sets is stable at 95.00% and above, and up to 100.00%.
With the rapid development of artificial intelligence technology, generative modeling is increasingly used in the field of artistic creation. In this paper, we design a Note Rank Transformer pop music generative model based on improved Transformer-XL. The model combines lyrics embedding with memory embedding module, and adopts masking array to improve the mechanism of multi-head attention to realize the effective modeling of music sequences. Based on the self-constructed dataset, the Note Rank Transformer model generates samples with a mean value of 90.46% for scale consistency, which is closest to real music (90.22%) in terms of statistical significance, and most of the values of the generating samples are slightly higher than the mean value of real samples for the three metrics of polyphony, note span, and note uniqueness, and for the repetitiveness and high quality notes than the Note Rank Transformer converges faster than Transformer-XL, and the training process is more stable, the interval range of the parameter distributions obtained from the music generation experiments based on Note Rank Transformer is in the range of (-0.2,0.2), which is significantly smaller than that obtained from the experiments using The interval range of parameter distribution obtained from Transformer-XL experiments is (- 0.5.0.5), which proves that the improvement strategy in this paper is effective.
This paper constructs a model of coupled coordination level of sports industry and economic development, and proposes to combine spatial measurement model and regression analysis model to explore the spatio-temporal characteristics of coupled coordination level. Combined with the panel data of nine cities in Province A from 2019- 2024, the dynamic impact of the sports industry on economic development and its spatial heterogeneity are systematically analyzed. It is found that, firstly, the sports industry and economic development present highly coupled characteristics, and the coupling coordination level is raised from on the verge of dysfunction (0.455) in 2019 to barely coordinated (0.517) in 2024, indicating that the level of synergistic development of the two is significantly enhanced. Second, there is a significant spatial positive correlation between the coupling coordination degree of sports industry and economic development (Moran’s I value of 0.3208~0.4297), and the spatial agglomeration characteristics gradually evolve from mono-core driving to multi-center networking. Third, the regression analysis shows that the coefficient of the total scale variable of the sports industry is 0.6186, the elasticity coefficient of the government input variable is 0.2854, the coefficient of the demand-side variable is 0.4175, and the elasticity coefficient of the human resource variable is 0.1575, i.e., the expansion of the scale of the sports industry, the improvement of human resource reserve, the enhancement of governmental financial support and the optimization of the structure of the market demand have a significantly positive promotion effect.
In this study, a hybrid CNN-BLSTM model integrating biomechanical feature extraction and graph theory is proposed as the core of computer vision technology for the recognition of emotion dynamics in dance body language. Through the Euler angle matrix transformation and de-rotation and de-translation process, biomechanical features such as joint position, bone angle, and human body orientation are quantified, and a force effect parameter system including lightness and smoothness is constructed. The synergistic mechanism between movement learning and emotional expression is explained from the perspective of cognitive psychology by combining movement concept and schema theory. The experiments are based on DanceDB and FolkDance datasets, and the CNNBLSTM model with deep and shallow feature fusion is used for validation. The results show that the proposed model achieves an average recognition accuracy of 43.48% and 52.37% on DanceDB and FolkDance datasets, respectively, which is an improvement of 7.46%-12.20% compared with single-feature methods such as directional gradient and optical flow direction. In key frame extraction, the multimodal feature fusion strategy reduces the compression rate to 2.96% and improves the accuracy and F1 score to 95.54% and 91.87%, respectively. It is shown that the model significantly enhances the emotion resolution of complex dance movements through joint modeling of spatio-temporal features.
The increase of globalization level puts forward higher requirements for cross-cultural language interaction ability. Based on the hierarchical teaching method, this paper designs a virtual simulation experimental platform with three layers: basic experiment, comprehensive application and research and development, and realizes the adaptation of educational resources according to the ability. Using the histogram equalization method and Adaboost algorithm, we optimize the gesture recognition to improve the real-time feedback effect of the platform in crosscultural interaction. Relying on Raspberry Pi hardware and Scratch graphical programming and other technologies, build an intelligent language teaching system in the platform to visualize language feedback. The application value of the virtual simulation platform is judged through language education practice. The results show that the resource occupation of the virtual simulation platform system is basically not more than 100% and occupies less resources. After utilizing the platform for assisted teaching experiments, the classroom interaction activity, students’ crosscultural language communication ability, and the level of operating skills of the experimental platform were increased to the highest 96.01%, 72.23%, and 60%, respectively. The average score of the evaluation of the platform’s functional diversity and the effectiveness of feedback and communication was over 4.5 at the highest.
This paper proposes a comprehensive method system integrating linear programming model, fuzzy compromise planning and decision tree algorithm, aiming to optimize the commercial operation and development path of sports industry. By constructing an interactive simulation framework based on the economic indicator model, it supports users to dynamically adjust the objective variables and policy constraints to achieve multi-objective optimization. Aiming at the problem of goal conflict and ambiguity, the affiliation function is introduced to quantify the goal satisfaction, and combined with the payment matrix and global utility function, the multi-objective optimization is transformed into a fuzzy planning problem. The decision tree algorithm CART is further used to optimize feature selection and improve the classification and regression prediction accuracy. Experiments show that the average running time of the CART algorithm is only 165.88 seconds, and the maximum fitness value reaches 1600, which is significantly better than the traditional genetic algorithm (more than 200 seconds) and ID3 and C4.5 algorithms. Based on the 2015-2024 sports industry data, the model consistency test shows that the simulation error of the total revenue of the sports industry is lower than 3.32%, and the error of the event-related revenue is generally lower than 6%, which verifies the effectiveness of the model. The sensitivity analysis shows that a 30% increase in the proportion of government financial support can increase the total revenue of the sports industry to 7.40 trillion yuan (+30.8%) in 2024, and a 30% increase in the proportion of sponsor investment can drive the revenue to 8.20 trillion yuan (+44.9%). The study provides data-driven decision support for sports industry resource allocation, risk analysis and policy formulation.
The protection and inheritance of Chinese language and writing intangible cultural heritage is facing the urgent demand of digital transformation, this paper proposes a speech recognition algorithm that integrates metalearning and transfer learning. The MetaTL algorithm captures the common patterns of cross-language speech features through meta-measure learning network, and combines with the dynamic gradient strategy to realize the fast adaptation of the target language. Relying on performance tests and functional tests, the effectiveness of the proposed algorithm is evaluated. IPA analysis is used to examine the practical application effect of the algorithm. The experiments show that the MetaTL algorithm converges after 111 rounds of training, reaching a correctness rate of 0.9 (90%), and the loss value stabilizes below 0.4 after 10 training sessions. The results of the survey show an overall mean importance value of 3.965 and a mean satisfaction value of 3.757. The interface dimension is located in the first quadrant “Advantageous Enhancement Zone”, the system functionality dimension is located in the second quadrant “Continuation Zone”, and the recommendation intention dimension is located in the third quadrant “Subsequent Opportunity Zone”. The dimension of system functions is located in the second quadrant “continue to maintain”, the dimension of willingness to recommend is located in the third quadrant “follow-up opportunities”, and the dimension of user experience is located in the fourth quadrant “urgent need to improve”. This study provides technical feasibility and practical paths for the digital preservation of linguistic non-heritage, and promotes the in-depth application of AI technology in the field of cultural heritage.
Literary works, as the carriers of social thoughts of the times to which they belong, are important references for social and cultural research. This paper focuses on ancient Chinese literature and uses corpus as a research tool to explore the social phenomena and cultural connotations reflected in literary works. Based on the different textual characteristics and connections between ancient and modern texts, we analyze the methods of selecting paragraph alignment features of the two texts. We also analyze the alignment process of ancient and modern texts, so as to complete the construction of the Ancient Literature Annotated Corpus. Then the technical framework of K-BERTopic model is designed to analyze and extract the themes of the texts in the corpus. It also combines the improved EDR with the Kmeans++-based dimensionality optimizer to dynamically reduce the dimensionality of the input documents and enhance the model effect. Subsequently, ancient poems are selected as the research object to analyze the social and cultural connotations of ancient Chinese literary works, extract the central keywords of ancient poems, statistically analyze the frequency of intonation auxiliaries, and collate the information of temporal changes of ancient poems. The K-BERTopic model is used to analyze the first data in the Tang Dynasty corpus, in which the probability of the theme of “landscapes and fields” is 0.2142 and the probability of the theme of “wandering to the ends of the earth” is 0.5768, which is in line with the corresponding thematic content of the poems. It shows that the K-BERTopic model can realize the thematic analysis of literary works by aligning ancient literary works with modern textual features, and assist in analyzing the social and cultural connotations.
Based on the concept of OBE, this paper explores the data-driven learning behavior of preschool music students. A multi-dimensional data analysis framework based on learning engagement was constructed, covering four types of indicators: behavioral, cognitive, emotional, and social. Through the whole-process behavior log and multi-modal interaction data of the MOOC platform, combined with the logistic regression model and social network analysis method, the learner’s input state and evolution law are dynamically identified. The empirical results show that the model has a good prediction effect on the shallow, middle and deep inputs, and the average F1 values of the molecular sets of shallow, middle and deep inputs are all above 0.6. The 250 students were divided into three types of prototypes, with Prototype 1 having a medium overall level of engagement (3.20 points), Prototype 2 having an overall level of medium to high (3.98 points), and Prototype 3 having a high overall level of engagement (4.59 points). In terms of behavioral engagement, there was the largest difference in the number of “mutual evaluations” (standard deviation of 32.58), the difference in the quality value of peer comments and the entropy of self-rated information under different learning themes was large in cognitive engagement, the proportion of positive comments in online learning was more in emotional engagement (mean was 0.62), the overall network density difference was small (standard deviation was 0.06), and the individual network difference was larger. The results of this study provide data-driven decision support for the precise teaching design and personalized intervention of preschool music courses.
Effective recognition of human actions is a must for the further development of artificial intelligence. In this paper, wearable sensors are utilized to collect human action data based on time series. Combined with median filtering technique to process the action data and keep the edge information, instantaneous and local features are highlighted by wavelet transform. Long and short-term memory network (LSTM) is added into the convolutional neural network to solve the limitation of insufficient dependency of the convolutional neural network in learning human actions and improve the model classification accuracy. A large human action database is selected for model training and testing to compare the performance advantages of this paper’s model. The results show that the actual number of misclassifications of this paper’s model in the 2 datasets is only 16 and 5. During the training process, the loss value is always no more than 0.1, and it shows a stable decreasing trend. The average recognition accuracy is steadily improved from 0.03891 to 0.76787. In the multi-method comparison, the accuracy of CS and CV metrics of this paper’s model is 87.39% and 90.87%, and that of Top-1 and Top-5 metrics is 41.76% and 60.63%, which is higher than that of the comparison methods. The model in this paper can effectively realize the smooth recognition of human body movements with high accuracy.
Mining the influencing factors of college students’ online learning behavior is of great significance for optimizing online education. Based on social cognitive theory, this paper constructs a model of influencing factors of MOOC learners’ learning behavior and mines the correlation among factors. Multi-attribute event sequence analysis of learning behavior data is carried out using feature extraction technology. The principle of minimum description length (MDL) is introduced in MinDL algorithm to balance the information loss and interpretability of pattern extraction. The K-means-CE clustering algorithm is proposed to achieve the initial center search through crown clustering and determine the optimal number of clusters by combining with the “elbow value”, so as to realize the efficient classification and group portrait of learning behaviors. The MOOC platform learning behavior data is used as the research object to analyze and explore the categorization of students’ behaviors. The results show that the correlation between the seven learning behaviors reaches up to 0.83, and all of them are negatively correlated with the dropout results. The students were clustered into 4 categories according to the characteristics of learning behaviors, which were simple experiencer, good questioner, active explorer, and school bully type.
In recent years, the tourism market has become increasingly hot, in order to realize the improvement of tourists’ travel experience, this paper carries out spatial intelligent planning for tourist attractions through the “Internet +” mode, and designs the emergency treatment plan for tourist attractions by using heterogeneous data sharing and spatial and temporal streaming models. This paper evaluates the intelligent planning of tourist attractions and emergency treatment methods, and deeply researches the current advantages of tourist attractions and the focus of future development. Tourists’ overall rating of this paper’s “Internet+” tourist attraction intelligent planning and emergency treatment method based on heterogeneous data sharing and spatial-temporal diversion model is 4.31, and this paper’s intelligent planning and emergency treatment of tourist attractions have produced better results.The mean value of satisfaction of tourist attractions in S city is 4.30, and the mean value of importance is 3.98, which is higher than that of importance, indicating that tourists’ satisfaction with tourist attractions is higher than that of importance. Satisfaction is higher than importance, indicating that most of the expectations and needs of tourists for tourist attractions are met.Tourist attractions in S city have advantages in the arrangement and functions of telephone alarm points, rescue and complaint telephones, monitor screen monitors, coverage of digital broadcasting, and monitoring of accident risks in tourist attractions.There are also advantages in the access to broadband Internet, the establishment and operation of portals, the establishment and operation of electronic tour guides and traffic navigation, and the intelligent scenic spot information There is still room for further improvement in such aspects as broadband Internet access, portal establishment and operation, electronic tour guide and transportation navigation, intelligent terminal release of scenic information, etc., and it is necessary to focus on the development of these aspects.
This paper integrates the SOR model and the TRA model to construct a theoretical model of social media marketing on consumer purchase intention, introducing trust as a mediating variable and social media burnout as a moderating variable. It explores the influence of five factors of entertainment, interaction, trend, customization and word-of-mouth in social media marketing strategy on consumers’ purchase intention. The hypothesis study that trust positively affects consumer purchase intention and social media burnout negatively moderates the effect of social media marketing on trust is proposed, and the research hypothesis is verified through examples. The variables are analyzed for correlation, and then the path relationship test is carried out on this basis to explore the influence of trust and social media burnout on consumers’ purchase intention. Comprehensive product consumer base data is synthesized to propose product social media marketing strategies. The results show that social media marketing has a positive effect on consumer purchase intention. Trust has a significant positive effect on purchase intention, the mediating effect of trust is obvious, and social media burnout negatively affects social media marketing.
Organizational structure is the most basic framework of an enterprise and an important part of enterprise management, and excellent enterprise culture is a huge intangible asset of an enterprise, which is a valuable spiritual wealth to unite all the employees and achieve excellence in the enterprise. The study summarizes the influencing factors of corporate culture reshaping and organizational structure adaptation, uses Spearman correlation coefficient to analyze the correlation of independent variables, and finally identifies 12 characteristic variables with insignificant correlation as independent variables. In order to improve the prediction accuracy of corporate culture remodeling and organizational structure fitness, this paper proposes a combined machine learning model based on SMOTE-XGBoost, comparing with logistic regression, KNN, decision tree, and random forest in machine learning, the SMOTE-XGBoost model for this paper has a better prediction effect in terms of the fitness precision rate, recall rate, and F1 score increased by 50%, 18%, and 38%, respectively. , with better prediction effect. The SHAP model is used to analyze the important influencing factors of corporate culture remodeling and organizational structure fitness, and it is concluded that behavioral performance, information technology enhancement, enterprise scale development strategy, market competition and skill mastery are the five characteristic indicators with the greatest influence.
As a representative of post-war surrealist sculptor, Alberto Giacometti’s painting and sculpture style has experienced from realism to surrealism and finally back to the deeper study of human beings, forming his own unique style of work. In this paper, text clustering method is used for data visualization, TF-IDF text keyword extraction method and K-means++ clustering algorithm are used to mine Giacometti’s painting art style, and twopair and two-independent t-test methods are used to analyze the differences existing in different painting art styles. The study categorized Giacometti’s painting art styles into 8 clusters and the clustering module value = 0.9146 with Q value far <0.3, clustering is significant. There are significant differences in different artistic painting styles, Surrealist vs. Impressionist, Impressionist vs. Fauvist, Romantic vs. Expressionist styles are significantly different. There is no significant difference between the styles of Surrealists and Romantic Poets and Expressionists.
Augmented reality technology, as an important achievement in the development of science and technology in the new era, has been widely used in the field of education. The study is based on the 3D-ResNet18 network, which is improved by adding Self-Attention layer and transformer encoder to construct an emotion recognition model based on deep learning. The model is combined with augmented reality technology and used together in art education. Through the experiments conducted on the image data collected by students in art teaching, the improved 3D-ResNet18 network model in this paper has high accuracy in recognizing the emotion of students’ expressions, and the recognition accuracies of confusion, happiness, normality, and boredom are all over 90%, and the overall recognition accuracies are improved by 0.51%~13.49% compared with other methods, which reflects the high-precision emotion recognition performance of the constructed method. After being used in AR art teaching, the overall emotion score of the sample students was recognized to be about 0.65, which confirms the effectiveness and practicality of the fusion application of the emotion recognition model and AR technology, which can support the diagnosis of students and classroom situations, and is conducive to the timely adjustment of the teaching program and the promotion of the development of the quality of art education.
Today in the context of globalization, English, as a universal language, has a stronger and stronger spark of cultural collision with other countries, and the cultivation of students’ intercultural communicative competence is particularly important. Through the theoretical analysis of the dilemma of English classroom teaching, it leads to the current problems in the cultivation of students’ intercultural communicative competence. In this regard, this paper designs a computer-assisted English teaching model based on intercultural communication from six different dimensions. In order to test the actual performance of the teaching model, independent samples t-test was used to analyze the differences. After the experiment, there are significant differences between the control group and the experimental group in the three dimensions of voice intonation, free dialog, and looking at pictures and speaking (P<0.05), which means that compared with the traditional teaching mode, the teaching mode of this paper is more favorable to the cultivation of students' intercultural communication skills.
The life of opera works lies in the performance, and the performers on the opera stage can give new artistic expression to the artistic performance of the opera works through the expression of effective vocal skills and the integration of them with AI technology. On the basis of combing the vocal singing skills on the opera stage, the article discusses the relevant training methods of vocal singing skills. Then the vocal singing voice data is collected with 10 different types of opera works, and the signal preprocessing is carried out through the methods of preemphasis, frame-splitting, endpoint detection, etc., and then MFCC is used to extract the emotional features of the vocal singing voice. As the input of CLDNN network, different emotional features are fused with dimensionality reduction and weighting through linear layer, and SAGAN model is introduced to mine the temporal relationship in emotional features, and then realize the recognition and classification of emotional features of vocal singing speech. The results show that the CLDNN-ASGAN model’s classification accuracy of vocal singing emotional features reaches 88.75%, and the average score for different types of opera vocal singing speech reaches 91.99, with a difference of only 0.18 points from the score of professional listeners. Utilizing AI technology to assist vocal performers in clarifying the emotional performance of their works during the performance process can promote the enhancement of the artistic expression of opera works.
With the increasing development of information technology in China, the application value of social media has been further highlighted. Compared with traditional media, the interactivity of social media is more in line with the requirements of students’ academic communication, which is conducive to students’ discussion of their own views and enhancement of their learning effect. This paper proposes the realization path of social media in the construction of the English classroom, through the network teaching, interactive teaching and other methods, to carry out the research on the transformation of English education to digitalization. Using two-branch network DNN-CBLM, a classification prediction model of English performance is constructed based on students’ online learning behavior. BP neural network was introduced to establish the factors influencing the quality of English teaching and to realize the effective evaluation of English teaching quality based on the objective attributes of English teaching quality evaluation.91.348% of the students were satisfied with the use of social media for their English learning, and compared with the traditional media teaching class, the English performance of the experimental class of social media teaching was improved by more than 5 points, and the mean value was 6.337% higher than that of the control class. Further analyzed using the independent sample t-test, the sig value of the mean equation of the two groups of experimental subjects is 0.004, which is lower than 0.05, indicating that the students in the experimental class have a higher understanding of the knowledge points and a better learning effect under the social media-based teaching environment.
With the continuous progress of science and technology, the digital reconstruction technology of architectural space has not only become a research hotspot, but its application demand also shows a significant growth trend. The traditional two-dimensional modeling technology has been difficult to meet the current demand for accurate architectural space modeling. In this paper, digital modeling technology is applied to set the shape parameters of the building space, and the solid shape of the building is designed through 3D modeling technology. Using OpenGL virtual reality technology, based on the acquired mathematical model of the target building space, the target building is extended and processed to design a more realistic three-dimensional virtual effect of the building space. Evaluating the results of the application of digital technology in the design of architectural space, among the eight house types, the K house type has the lowest K value of 0.7165.The house types with high average distance coefficients have a K value in an intermediate range, with an interval of 0.8465 to 0.9048.In the evaluation of the user experience, the average value of each score of the user experience of the architectural space is more than 90, which indicates that the architectural space is good for user experience.
The proliferation of corporate financial data makes it more and more difficult to mine from a large number of accounting statements that have value and identify potential risks of a company. This study collects the historical accounting statement data of Company J from 2020 to 2024, and screens out the key financial indicators through data mining techniques. Meanwhile, the financial risk status of Company J in recent years is analyzed by combining the accounting statement data. Then, using the probability of the company’s financial risk as the dependent variable, the correlation between the financial indicators and the probability of risk emergence is analyzed, and a regression prediction model is established. The total assets of Company J in 2020~2024 increase year by year, and by the end of 2024, the total assets reach 367.41 billion yuan. The company’s short-term solvency in 2020~2023 is weak, and the cash ratio, quick ratio, and current ratio are lower than the industry average. The study extracted six main factors affecting the company’s financial risk, and its overall variance is 85.58%. Logistic regression analysis shows that a 1-unit increase in the values of the six main factors reduces the likelihood of the company’s financial risk by 0.209~4.056. This study provides a quantifiable analytical method for accounting statement data mining, which can help enterprises to strengthen the control of financial risk and provide references for investment analyses. Provide reference.
Integrated circuits are increasingly used in complex environments, and the environmental adaptability of their electrical parameters has become a key factor affecting reliability. Based on the LK8820 test platform, the article develops an environmental adaptability testing model for the electrical parameters of integrated circuits. Through the data acquisition module of LK8820 platform, the key electrical parameters of ICs in extreme environments are obtained. Utilizing the Transformer architecture, the mapping relationship between IC electrical parameters and environmental variables is established. The test circuit is designed to improve the convenience of electrical parameter detection, and the effect of electrical parameter detection is verified by combining with simulation experiments. The accuracy of the electrical parameter detection model based on the LK8820 platform is 92.55%~97.28% under the operation of integrated circuits in high temperature, low temperature, high humidity and dry environment. Under different environments, the detection errors of the model for the four electrical parameters of IC static capacitance, dynamic capacitance, dynamic inductance, and dynamic resistance are between 0.04% and 0.95%, with high accuracy. The voltage and current output values of the model on the coal miner traction inverter are consistent with the values calculated in the study, and the output waveforms are correct. The detection error of voltage RMS of the model is higher than that in normal environment under harsh environment, but the detection error is much lower than the design value of 2%.
In order to improve the shortcomings of the current school scheduling system which is inefficient, this paper meticulously researches the scheduling problem and constructs a mathematical model of school scheduling. Genetic algorithm and ant colony algorithm are applied to intelligent class scheduling respectively. Combine the single algorithms to construct an intelligent scheduling model based on genetic-ant colony algorithm. After verifying the superiority of the scheduling performance of the genetic-ant colony algorithm, the scheduling quality, efficiency, and the satisfaction rate of the settable rules of the algorithm are tested. The optimal solution adaptation and average adaptation of the genetic-ant colony algorithm in this paper are better than the comparison algorithm, and although it takes more time than other algorithms, the algorithm in this paper has the best overall scheduling performance. The genetic-ant colony algorithm is better than other algorithms in the overall performance of class scheduling. The genetic-ant colony scheduling model in this paper has a high satisfaction rate of 100% for students’ class selection, the mean value of overall rule satisfaction rate and the mean value of scheduling satisfaction rate are more than 95%, the classroom utilization rate reaches 88.1%, and the course uniformity is 0.8, which obtains a good scheduling effect.
The author in order to realize the skill assessment of soccer players and analyze the athletes’ performance on the field. Based on the extraction of multimodal data of soccer players and the fusion of multistream data with adaptive multiscale differential graph convolutional network, the athlete action recognition model is constructed. Next, the PC-CNN skill assessment model is constructed to assess and analyze the skills of soccer players. The performance performance of the assessment model in this paper is tested through comparative experiments. Finally, analyze the performance of the soccer team in the shooting mode and shooting area. The accuracy of this paper’s PC-CNN assessment model is more than 90% in the assessment of three levels of skills of soccer players, and the accuracy of the assessment of high-level skills reaches 100%, which is more accurate than other models. Among the multimodal data of athletes’ physiology, joint movements had the greatest influence on the assessment accuracy of the assessment model, which reached 78.17%.The soccer teams A, B, and C had the highest success rate in the item of penalty kick shooting skill, with success rates of 75%, 66.7%, and 66.7%, respectively. Teams A and C had the highest success rate in Zone 1.Team B had the highest success rate in Zone 4.
The virtual power plant contributes to the safe and stable operation of the power system by aggregating distributed resources on the distribution network side to make it an aggregator with a certain degree of control. In order to optimize the utilization efficiency of multiple energy sources within a virtual power plant cluster as much as possible, this paper establishes a dynamic model of virtual power plant cluster under the premise of ensuring that each virtual power plant within the cluster has the ability to regulate. Taking the balance of power balance index, power complementarity index and regulation capacity index as the optimization target, the virtual power plant resources are dynamically dispatched, and the nodes of multi-energy systems are aggregated to build a virtual power plant cluster that meets the demand of the main grid. The virtual power plant cluster division problem is transformed into a multi-objective optimization problem, and by constructing different energy cooperation and noncooperation game scenarios, the improved algorithm is used to solve the virtual power plant cluster synergy model, and analyze the economic benefits of the virtual power plants under different methods. The total benefits of percapacity allocation, traditional method, and improved particle swarm method are 97.688 million yuan, 10.507 million yuan, and 107.94 million yuan, respectively. The benefit in the virtual power plant wind, light, combustion, and storage multi-type energy fully cooperative game scenario is 105.07 million yuan, which is 7.382 million yuan more than the benefit in the scenario of fully uncooperative game for each type of energy. The model constructed in this paper can promote the optimization of energy utilization rate of virtual power plant and take into account the economy of optimal scheduling strategy.
In this paper, we build a large language model about counseling conversations by using automatic conversation generation technology to simulate an automatic conversation between a counselor and a visitor. In order to optimize the dialogue recognition and mental health counseling service and construct a cognitive event map, a dialogue generation model that can introduce external knowledge is proposed to improve the accuracy of mental health counseling responses. Analyze the performance of the dialog generation model with the introduction of external knowledge on BLEU, ROUGE-L, FEQA, QuestEval, P, R and F1 metrics. To carry out experiential mental health counseling services for college freshmen and analyze the changes in positive psychological qualities of college freshmen before and after the intervention. After the implementation of experiential mental health counseling services, the positive psychological quality scores of the experimental class were higher than those of the control class, and reached statistically significant in the dimensions of “self-management and humility” and “spirituality and transcendence” and the total score. This suggests that the mental health counseling service using deep learning technology can be used as a way to assist the training of positive mental qualities of college students.
Intangible cultural heritage is the precipitation of civilization in the process of human development and the inheritance of people’s generational spirit. The study focuses on the application of 3D modeling technology in cultural genetic protection, innovatively proposes a 3D point cloud edge extraction algorithm based on Gaussian mapping clustering, using K-nearest neighbor search, Gaussian mapping and K-means clustering algorithms to realize the extraction of edge features of the mural paintings of the tombs, in order to assist the restoration of the mural paintings and the protection of inheritance. Through the experiments on the public dataset and the tomb chamber mural dataset, it is found that the results of this paper’s method are better than the comparison method in all three indexes, and the ODS, OIS and AP values of this paper’s method are improved by 2.19%, 0.95% and 1.78% in the public dataset, and 3.35%, 4.05% and 5.24% in the tomb chamber mural dataset, respectively. In addition, the edge extraction results on the sample of tomb chamber murals also confirm the effectiveness and efficiency of the method. The results show that the proposed method has a positive effect on the digital preservation and subsequent restoration of cultural heritage.
The integration and application of computer technology and new media art can not only optimize the new media art presentation form, but also innovate the presentation form of art design. Focusing on the innovation of new media art design, this paper discusses and analyzes the promotion role of computer-aided creation methods in it. Based on the application of image generation technology in AI, taking the single-stage generative adversarial network as the basic model and introducing multiple intelligent modules, we design the text-generated image method based on DGF-GAN to stimulate and assist the design of new media art. The images generated by the DGF-GAN model are of excellent quality and diversity, and its FID and IS values perform optimally in the comparison experiments. Compared to the base model, the FID values of the DGF-GAN model are reduced by 6.34% and 5.83% and the IS values are improved by 1.46% and 6.60% on both datasets. In addition, the method has good training efficiency and image generation efficiency. The results show that the proposed method has a large development potential in new media art design, which can enhance the design flexibility and designer creativity, and promote the development of art creation in a more intelligent and precise way.
With the advancement of Industry 4.0, computer terminals are increasingly integrated with the public Internet. While this integration improves operational efficiency and flexibility, it also brings new data management problems. Before starting the research, the theoretical knowledge of this research is defined and expressed. After that, the computer terminal data is obtained, and it is found that this data has problems such as redundancy and multidimensionality. In order to improve the efficiency of user data management, data extraction method based on PCA-ReliefF, data mapping method based on kernel principal components are designed and analyzed by numerical simulation using Matlab 7.1.The KPCA algorithm has a longer computing time than the PCA algorithm, which indicates that the kernel function is introduced on top of the original one in order to realize the nonlinear mapping from low-dimension to high-dimension, which results in the growth of the computing time. Although the computing time grows, the accuracy of KPCA is much higher than PCA, i.e., the introduction of kernel function in traditional PCA can improve the accuracy of computerized multidimensional data mapping, which facilitates the users to better manage the data of computer terminals.
Between World War II and the Cold War, the United States, dominated by military-industrial capital, established a new form of capitalist world hegemony. Based on the knowledge of system dynamics theory, this paper determines the boundary conditions and causality of the simulation research program of the rise of the U.S. military-industrial complex and the change of the economic pattern, in addition to supplementing the three system dynamics model test. Using Vensim simulation and analysis software, numerical simulation simulation analysis of the model in this paper. Set the time period in 1931~1990, when the U.S. military-industrial complex productivity decayed from 0.8 to 0.4, produced the U.S. national per capita income and the emergence of a decline in the economic phenomenon, which directly affects the global economic pattern changes, but also highlights the U.S. military-industrial complex rise and international status.
In the context of today’s society, juvenile vicious incidents occur frequently, and the under-ageing of crime has become a hot topic of public discussion. Actively responding to the problem of underage crime underage is of great significance to the long-term stability of the society. On the basis of analyzing the characteristics of juvenile crime, the article sorted out the social factors affecting juvenile crime, i.e., the insufficient effect of legal regulation and the influence of network bad information. On this basis, a multiple linear regression model is constructed by choosing the effect of severe punishment policies and regulations and the rate of network bad information regulation as the explanatory variables, and the juvenile delinquency rate as the explanatory variable. The empirical analysis shows that the stronger the effect of severe punishment policies and regulations and the rate of network bad information regulation, the lower the juvenile delinquency rate will be, i.e., there is a significant inhibitory effect on the juvenile delinquency rate at the 1% level of the two. Minors’ crimes require the introduction of reasonable and applicable educational and disciplinary measures, the creation of integrated protection and crime prevention and control mechanisms, and the active improvement of the network environment to provide a reliable guarantee for the healthy growth of minors.
The flexible interconnection of the distribution network based on flexible DC and the hybrid AC-DC distribution network structure will bring great changes and challenges to the traditional operation mode of the distribution system. Based on combing the structure of MV DC distribution system and flexible interconnection device, the article proposes the control model of converter station of flexible interconnection system based on MMC and constructs the operation strategy of flexible interconnection system. The stability of the MV flexible interconnection system is simulated and analyzed by combining the output impedance model and equivalent circuit of the DC side of the flexible converter. In order to further improve the control effect of the MV flexible interconnection system accessing the distribution network, this paper combines the multi-intelligent body (MMC) system with the flexible interconnection control strategy, constructs the control and protection strategy of the MV flexible interconnection system accessing the distribution network, and carries out the simulation analysis of it. The results show that obvious resonance peaks can be observed in the Bode diagram of MMC, and the simulated measured and theoretical curves are in good conformity, and the optimized balanced control strategy of capacitor voltage of MMC sub-module can realize the balanced control of capacitor voltage and the amplitude of voltage fluctuation can be controlled within ±5% of the rated voltage of the capacitor. Relying on the system control and protection strategy established in this paper, the energy management control effect of the distribution network can be significantly ensured and the reliability of the distribution network can be enhanced.
Deep reinforcement learning to help multi-intelligence to achieve multi-target detection of the environment and optimally plan paths. To this end, the article proposes an improved YOLOv7 method for image multi-target detection. Null convolution with mean pooling is introduced in the SPPCSPC module to shallow information in the image, and a lightweight SimAM attention mechanism is introduced in the head network to focus on the region of interest. And the hybrid edge regression loss function is proposed by combining NWDloss loss with CIOU loss. Meanwhile, the article further utilizes deep Q-learning for path planning on the basis of multi-target detection algorithm, and proposes two mechanisms to improve the DQN algorithm based on adaptive exploration strategy and based on changing the objective function for the two problems of DQN algorithm in path planning. In terms of datasets, compared with the YOLOv7 algorithm, the proposed algorithm improves the AP@0.5 of all detection categories by 3.2 percentage points, and is more than 3.1 percentage points higher than the AP@0.5 of the YOLOv7 algorithm, effectively realizing multi-target detection. The results of path planning simulation experiments show that the algorithm in this paper is able to plan good AGV paths, and the stability and convergence speed of the algorithm have been improved.
Considering the spatial distribution and temporal evolution characteristics of extreme meteorological hazards, this paper constructs a combined model (CNN-LSTM) of convolutional neural network (CNN) and longshort-term memory network (LSTM), and designs the training process of the model. Certain salient features of the environmental change data are captured by the CNN spatial model and these features are used as inputs for constructing the LSTM time series dataset, which reveals the interactions between the hidden features in the data and the space, and thus improves the accuracy of the prediction results. The diffuse reflection coefficient of the solar panel is also calculated as well as the parameters of the model are determined to finalize the environmental change-sensitive nonlinear modeling of the current output characteristics of the solar cell, which is experimentally demonstrated and analyzed. The CNN-LSTM model in this paper outperforms the single LSTM model in the four evaluation indexes of RMSE, MAE, MAPE and R² in the training and test sets, and it is able to more accurately capture the small fluctuations of the solar cell current output power in response to the environmental changes, and shows stronger robustness and generalization ability. The reliability and sensitivity of the solar cell are better when the insulating film thickness is 0.2 mm and 0.8 mm, and it has better sensitivity to both temperature and relative humidity, which provides reference information for the sensitivity of solar cell current output to environmental changes using the time series data analysis method.
The study takes the target detection algorithm based on convolutional neural network (YOLOv5) as the optimization object, for the problem of limited sensory field existing in the standard convolution, a mask module conforming to the characteristics of the distribution of the effective sensory field is designed to adjust the convolutional kernel weights, and a kind of improved deformable convolution (MDC) is proposed, and the MDCYOLO detection model is constructed. Small and large target detection experiments are performed on the insulator dataset and Vis Drone2019-DET dataset, respectively. The experimental results show that the detection accuracy of MDCYOLO is greatly improved compared to Y0L0v5 using standard convolution, which also reduces the computation of the detection model and improves the detection speed. The detection accuracy of the MDCYOLO model outperforms that of other mainstream models, regardless of whether it performs small target detection or large target detection. The target detection optimization method based on improved convolutional neural network structure designed in this paper has obvious advantages in detection accuracy and speed.
Along with the vigorous implementation of the “E-commerce Guangxi, E-commerce ASEAN” project in Guangxi, Guangxi has ushered in a new development opportunity, and at the same time ushered in the corresponding risks. In this study, regression analysis and correlation analysis are used as the basic tools to construct a synergistic optimization model of cross-border logistics cost and risk in Guangxi. Five indicators of core elements of logistics, product, credit, talent and government are collected, and a cross-border logistics cost risk control measurement system containing fifteen secondary indicators is designed. On this basis, data-driven, technical support, and organizational collaboration are assembled to design a cross-border logistics cost risk cooptimization strategy. Through simulation verification, the model of this paper can effectively verify the five factors with significant positive influence ability on the cost risk control of cross-border logistics in Guangxi, and at the same time accurately predict the cross-border logistics demand in the next few years, which effectively reduces the cost risk of cross-border logistics in Guangxi. It provides practical guidance for the efficient and sound development of cross-border logistics in Guangxi, and also has profound reference significance for the synergistic optimization of cross-border logistics cost risk in other regions.
In this study, 652 students in the first to fourth year of a university in M province were taken as research subjects, and the self-identity scale was first used to measure the current status of self-identity of college students. On this basis, two parallel classes of senior year students with low sense of identity were selected as research subjects and divided into experimental group and control group, respectively, and the effectiveness of music aesthetic intervention based on music aesthetics on college students’ sense of self-identity was investigated through the method of multivariate linear regression. The Pearson’s correlation coefficient algorithm was used to assess the degree of association between the two fixed-distance variables of music aesthetic education and college students’ self-identity. The results show that there are significant differences in the self-identity level of college students by gender and grade, and the self-identity of female students is higher than that of male students; the self-identity of college students does not differ significantly by major; the intervention of music and aesthetic education can significantly improve the self-identity level of college students, especially the self-value and self-motivation identities, which are significantly higher than the original ones by 28.59% and 23.41% respectively.
Under the environment of energy conservation and emission reduction, electrical energy substitution in agricultural production can effectively reduce carbon emissions and improve environmental quality. This paper proposes a carbon emission calculation model, combines historical data to calculate the total energy carbon emission of the city, and predicts the trend of energy carbon emission changes based on the Mann-Kendall trend analysis test. Improve the single-level gray correlation, propose multi-level gray correlation analysis method to comprehensively assess the environmental impact factors of rural electric energy substitution, and construct an impact assessment model of agricultural electric energy substitution. Utilizing energy and economic data from 2020- 2024 in Anhui Province, China, emission monitoring and trend forecasting are conducted, and the environmental impact of its agricultural electric energy substitution technology is assessed. Anhui Province’s future carbon emissions will continue to show an overall increase, but carbon emissions from mining (industry) will continue to decrease. In 2026, the rural electricity substitution in Anhui Province is predicted to be 64.72×108(kW·h), which will increase by 221% compared to 2022, and the rural electricity substitution shows a diversified development trend.
As an important component of high-rise buildings, the rationality of the design of the water supply and drainage system is directly related to the use of building function and safety. In this paper, the water supply and drainage system of high-rise buildings is digitally modeled through three-dimensional digital technology and constructed as a three-dimensional raster model according to a certain transformation ratio. Improve the A* algorithm, put forward the high-rise building water supply and drainage pipe path optimization algorithm, construct the directed connectivity graph structure, and determine and output the optimal path of the pipeline through the valuation function. Based on the green new energy fire protection program, the high-rise building water supply and drainage pipeline path optimization and simulation experiments are carried out. The application of this paper highrise building drainage pipe path optimization algorithm automatically arranged by the shortest length of high-rise drainage pipe, and the number of elbows to reach the minimum, the average running time is faster than the traditional A * algorithm 0.0736s, basically achieved the desired layout effect.
The linear one-level inverted pendulum system is a typical nonlinear unstable system, but it has an important role in the application of microcontroller programming. Aiming at the nonlinear and natural instability of linear one-level inverted pendulum, this paper proposes an adaptive fuzzy PID control algorithm after completing the mathematical modeling of linear one-level inverted pendulum, and designs a fuzzy adaptive controller by synthesizing the stability theory of Li Yapunov to satisfy the stability and control effect. The adaptive fuzzy PID control algorithm in this paper is the core algorithm, and the intelligent control system programmed by microcontroller is constructed. In the system simulation experiment, the overshoot of the displacement, lower pendulum angle and upper pendulum angle of the adaptive fuzzy PID control system of this paper is about 0.02m, 0.012rad, 0.005rad, and the adjustment time is about 3s, 2.5s, 2.5s, and the results of the experimental simulation are better than that of the conventional PID control system as a comparison, which shows an excellent performance of the system.
The article first constructs an innovative model of ideological and political education based on artificial intelligence-assisted learning. Subsequently, DEMATEL is used to determine the factors affecting the effect of ideological and political education to be identified and analyzed, and from the important cause factors, the result factors and the key influence factors. 100 sample data were selected for fuzzy set qualitative comparative analysis to obtain the conditional grouping state that affects the effect of ideological and political education. The results of the analysis showed that the study obtained two successful groupings of educational effects, namely “better basic competence * ensuring the role of teachers * good teaching media conditions” and “better basic competence of teachers * students’ positive learning tendency * good teaching content * good teaching media”, as well as a grouping that leads to failure in teaching effectiveness: insufficient teacher role * lower student tendency * poor teaching content * poor teaching media.
Under the background of globalization, cultural innovation has become a key factor and frontier field of national power competition, and it has gradually become a strategic choice for all countries in the world to promote their own culture to go out and improve international communication ability. In the article, CycleGAN network is improved to realize the intelligent generation of non-heritage cultural symbols, and the image style migration effect of the improved model is proved by the ablation experiment and the comparison experiment on different datasets. Then the fuzzy set qualitative comparative analysis is applied to analyze the influencing factors and grouping paths of popular videos related to non-heritage cultural symbols spreading in YouTube platform. It is found that there are two grouping paths for the spread of NRH cultural symbols: flexible spread of pan-life content and implicit spread of pan-knowledge content. The global dissemination of NRH cultural symbols can be carried out in terms of relevant departments leading, multi-party participation, digital recording and display, network platform dissemination and digital creative product development.
Ideological and political education has developed into the era of informationization and technologization, and should consciously follow the changes in the social environment to make corresponding adjustments. Based on big data technology, this paper shifts the development of ideological and political education activities to a targeted and fine implementation. Combined with the actual situation of student management in colleges and universities as well as college students’ civic education, a quantifiable student information model is constructed and a personalized learning resource recommendation system is established through data collection, cleaning and normalization. The system adopts user-based collaborative filtering recommendation algorithm to recommend personalized learning resources, and then adopts content filtering recommendation algorithm to optimize the recommendation system for the problems of sparse scoring and “cold start”. After testing, the similarity of collaborative filtering and contentbased similarity have the same weight, and the error value is minimized when the number of recommendation lists is 10. The algorithm of this paper is applied to the personalized learning resources recommendation system for teaching practice, compared with the effect of other algorithms, the students’ performance under the method of this paper is significantly improved, and the students are satisfied with the effect of using the system.
In this paper, we use the real data provided by Tianchi Big Data Research Platform to predict which commodities will be purchased by this user in the short term among the commodities that the user has interacted with. Firstly, the collected historical interaction data of commodities are normalized by Z-score. Then the features are extracted for coding, and the number of features is reduced based on the chi-square test method to improve the modeling efficiency and accuracy. Finally, the processed user purchase behavior data is input into the logistic regression model for e-commerce user purchase behavior prediction. The AUC value of the logistic regression model is greater than 0.5, the percentage of the number of purchasers increases with the increase of the predicted probability value, and the number of non-purchasers decreases with the increase of the probability value of the score segment. The model prediction results are consistent with the actual purchase, and the model is valid.
The use of big data to build a “smart party building” model, and do a good job of related security, is conducive to more quickly control the overall situation of party building work. In this paper, we propose a method for determining party members’ rank by combining principal component analysis and K-means clustering, and combine the improved decision tree algorithm with big data for party building to realize the design of a decision support system for intelligent party building. The research results show that the proposed joint analysis method of dimensionality reduction and clustering can classify party members into different grades, and its k-s test significance is 0.214>0.05, obeys normal distribution, and the observed values are more in line with the expected values, so it can effectively assess the ideological dynamics of party members. The precision and accuracy of the designed decision support system are more stable, maintaining at about 87% and 94% respectively, which is significantly better than the traditional system, and is of great significance to improve the efficiency of management of party members’ ideological dynamics in colleges and universities.
Dialogue generation is a key research direction in natural language processing, and the adversarial generative network GAN has been widely used in the field of dialogue generation. In this paper, based on the reinforcement learning method, combining the generative adversarial network with the proximal policy optimization algorithm, a PPO-GAN dialogue generation model is proposed, and experimental validation of the model is carried out. The experimental results show that, comparing with the Adver-REGS dialog generation model that uses policy gradient to train GAN, the PPO-GAN model achieves the optimal values of similarity metrics BLEU-1, BLEU-2, BLEU-3, and BLEU-4, which are 19.7, 14.6, 10.8, and 9.5, respectively, and outperforms Adver-Regs in terms of correctness, smoothness, and relevance in generating replies. It also outperforms the Adver-REGS model in terms of correctness, fluency, and relevance of generated responses. In addition, comparing the Seq2Seq-Attention, REGS, RCDG, and PAML models, the PPO-GAN model also achieves higher quality of dialog generation and outperforms in terms of consistency of generated dialog. This study opens up a feasible path for optimization of multi-round dialogue generation and provides strong support for human-machine dialogue learning.
In this paper, a scientific and effective scoring method plays an important role in the improvement of students’ English speaking level in the teaching of spoken English. In this paper, we design an English speaking scoring method that integrates spectral clustering algorithm and speech data. The spectral clustering algorithm effectively integrates the feature information in the speech data by constructing a similarity matrix, and divides the students’ spoken English samples into different categories. The categorized data are inputted into the scoring algorithm for speech matching, and the reference spoken English speech data are used as the standard, and the difference between the two is calculated by the dynamic time regularization algorithm, reflecting the difference between the students’ spoken English speech and the reference speech, and scoring the students’ spoken English performance. The spectral clustering algorithm in this paper is able to achieve a higher degree of accuracy and reduction in the classification of students’ spoken English samples compared with comparative algorithms such as K-mean clustering. And based on this paper’s automatic English speaking scoring algorithm, the mean difference between algorithmic scoring and manual scoring is only 0.2698 points, and there is no significant difference in the scoring level between the two. The application in English teaching can reduce teachers’ workload while improving students’ English speaking learning effect, which provides a more intelligent method for English speaking teaching.
With the increasing complexity and refinement of public security forensics, the legal compliance review mechanism plays an important role in the process of public security forensics.In this paper, we propose a semantic role annotation and legal domain oriented entity-relationship extraction method based on BERT-BiLSTM-CRF. In legal text processing, this paper introduces the BERT model with powerful semantic understanding capability on the basis of BiLSTM-CRF model, which further enhances the semantic role annotation model’s ability to understand the terminology of semantic structure of legal text. In addition, the models of legal information enhancement module, legal potential relationship and global correspondence model and decoder are constructed for entity relationship extraction in legal domain. The study shows that the semantic role labeling algorithm in this paper has different degrees of improvement in F1, P and R indicators, while the entity relationship extraction method has an extraction accuracy of more than 78% in multiple cycles, and the extraction accuracy is close to 100% on individual legal relationships. And the application of legal knowledge graph under the method of this paper in public security forensics provides rich legal entity relations for public security forensics, reduces the time of manual review and improves the reliability of the review results.
This paper constructs the evaluation index system of economic quality development from six dimensions, including economic fundamentals and ecological environment. In order to scientifically assess the level of economic quality development of each province and ensure the rationality of the assignment method and the availability of data, this paper selects 31 provinces in China as the research object, combines the hierarchical analysis method (AHP) and entropy weighting method (EWM) to assign weights to the indexes and combines with the TOPSIS method to make a comprehensive assessment of the level of economic quality development of each province. The results show that the comprehensive realization level of China’s economic quality development in China is low, the spatial differences are obvious, and the contradiction of unbalanced regional economic development is very prominent. Overall, the spatial distribution pattern of “strong in the east and weak in the west, high in the south and low in the north, with east China as the leader, north and south-central China as the two wings, southwestern and northeastern China as the center, and northwestern China as the bottom” is shown. From the provincial perspective, Beijing, Shanghai and Guangdong have a high level of economic quality development, while nine provinces, including Gansu, Qinghai and Xinjiang, have a low level of economic quality development. The analysis of the influencing factors of China’s economic quality development learns that GDP and government intervention play an important role in economic quality development.
The rapid development of Artificial Intelligence (AI) technology has profoundly affected the digitization process in the field of literature, and the application of AI technology in the ethical criticism of digital literary narratives has become more and more widespread. In this paper, combining RoBERTa pre-training model, BiLSTM, and attention mechanism, we constructed a sentiment analysis model based on RoBERTa-BiLSTM-Attention, and analyzed the sentiment trend of the novel text with the object of Chinese New Century Literature “The Riverbank” as a basis for the AI to generate literary narrative ethical criticism. The experimental results show that this paper’s model with the multi-head attention mechanism layer improves 3.22% and 1.65% in the two evaluation indexes of accuracy and F1, respectively, compared with the RoBERTa-BiLSTM model without the addition of the multi-head attention mechanism layer, which proves the effectiveness of this paper’s model in introducing the attention mechanism. Meanwhile, comparing with other models, the accuracy and F1 value of this paper’s model are optimal, reaching 88.35% and 86.52%, respectively, which indicates that this paper’s model is suitable for the task of recognizing the emotions of literary texts.
Classroom teaching evaluation in universities is of great significance for improving the level of talent cultivation and classroom teaching quality. In this paper, in order to evaluate the university classroom teaching more objectively, the principal component analysis and systematic clustering algorithm are used to establish the course teaching quality assessment model. The data of classroom teaching quality evaluation of 30 teachers in S university are used to verify the example. First, three independent variables, namely, teaching resources and atmosphere creation, faculty situation and classroom teaching situation, were extracted based on the portfolio evaluation method. Then, the teachers’ classroom teaching quality was comprehensively evaluated and ranked by systematic cluster analysis. The error term test proves that the teaching quality of college courses can be accurately assessed based on \( Y = 1.782 + 0.211p_1 + 0.261p_2 + 0.165p_3 \). Finally, the teaching quality improvement countermeasures in three aspects, namely, upgrading the level of “application-oriented” teachers, expanding classroom teaching content, enriching professional learning resources, and creating a professional learning atmosphere, are put forward in the light of the teaching experience of the courses.
In order to more intelligently and accurately analyze the mental health status of students through their emotions, and to promote the good development of students’ mental health. In this paper, we propose a student mental health analysis method based on multimodal social emotion classification, using the multi-head self-attention mechanism in the BERT model to extract and train the textual features of the data, and then using the VGG16 model as a pre-training model to obtain the image features of the data, and then fusing the two features into a multimodal feature through the fully connected layer. The features are inputted into GRU layer and fully connected layer to get the subjective emotion of the student, and finally the dynamic matching image is emotionally categorized to get the side emotion of the student, and then the model of this paper is applied to the recommendation of psychological services for students. The student multimodal sentiment computation model improves its main accuracy by 2.86% compared to the better performing model in the comparison experiments. Psychological interventions for students based on the student multimodal emotion computational model led to significant improvements in students’ total mental health, obsessive-compulsive symptoms, and other psychological factors, realizing the combination of psychological education work for college students with new technologies, advancing the progress of intelligent psychological work mechanisms, and enhancing the scientificity and relevance of psychological intervention mechanisms.
Nowadays, computer technology has been developed rapidly, and numerical calculation methods have been widely used in geotechnics. Among them, the finite element method has developed into a powerful computational analysis tool. Based on the basic principle of the finite element strength reduction method, the article constructs the intrinsic model of rocky slope. The implementation process of finite element strength reduction method in ABAQUS for slope stability analysis is discussed. At the same time, we discuss the modeling process of evaluating the stability of jointed rocky slopes in ABAQUS software. Through the analysis of slope stability and destabilization mode, it can be seen that with the decrease of joint spacing s , the density of joints inside the slope increases, the safety coefficient of the slope decreases, and the destabilization mode of the slope is gradually transformed from the logarithmic spiral form to the folded line form. After applying the rocky slope management method of “anchor cable + inclined support wall + anti-slip pile”, the maximum displacement value is only 2.55mm, which indicates that the slope is in a stable state, and the anti-slip key has achieved the expected effect.
Frequent itemset mining plays an important role in many important data mining tasks. However, with the rapid development of big data, the demand for valuable information in data is increasing. Aiming at the problems of inefficiency and load unevenness of traditional FP-Growth algorithm for mining in big data environment, an improved parallel FP-Growth algorithm is proposed in this paper. The load balancing strategy is chosen as the solution to the problem, the optimized computational volume model is constructed considering the shortcomings that the computational volume model cannot reflect the characteristics of the data itself, and the optimized parallel FPGrowth algorithm is implemented under the Spark computing framework. The load-balancing based PFP algorithm is optimized to a great extent in terms of the energy consumption of the algorithm operation, and the energy consumption is reduced by up to 63.73% compared to the PFP algorithm. Excellent runtime distribution is obtained for a large number of tasks, and the runtime share of tasks is in a balanced distribution state. It illustrates the performance advantage of the algorithm in this paper, which can be effectively adapted to the frequent itemset mining of big data.
With the continuous development and improvement of textual topic modeling, variational inference, as an effective approximate inference method, is widely used in parameter estimation of topic models. In this paper, combining Bayesian network and hierarchical Delikerian process (HDP) model, an HDP online variational Bayesian inference (Dist-LDA-VB) method is proposed and applied to the task of multidimensional inference of discourse hierarchical features in English corpus. By comparing the corresponding topics derived from the two models, it can be found that they have similar thematic content. In the topic inference of the constructed English corpus, the DistLDA-VB model and Markov Topic Models (MTMs) yielded similar topics, which are suitable for corpus discourse hierarchical feature inference. In addition, based on the corpus approach, this paper explores the semantic differences between the English “conclusively infer” class of synonymous adverbs certainly, definitely, necessarily and surely. The results of the study show the spatial distance between the target words and the variables, which is helpful for learners to memorize the correspondence between them, so as to systematize the inter-word differences and reduce the cases of misuse.
With the development and popularization of information technology, social platforms have become an important platform and channel for the dissemination of Marxist ideology. Social platforms cope with the influence of various non-mainstream ideologies and diversified thoughts, how to make good use of the strengths and avoid the weaknesses to do a good job in the effective dissemination of Marxist ideology is a realistic problem that needs to be thought about urgently. In this paper, we firstly adopt complex network theory to analyze the communication characteristics of Marxist ideology in social platforms. Then, based on the SIR model, taking the competitive relationship between information into account, a model of information dissemination of Marxist ideology with improved SIR model is proposed, and the infection rate, conversion rate, and immunity rate of the model are simulated as well as analyzed in terms of effect. The experimental results show that the efficiency of Marxist ideology dissemination can be accelerated by increasing the infection rate, decreasing the conversion rate and immunization rate.
In order to be able to better assess the overall quality of the school’s overall educational management in a comprehensive way, colleges and universities need to conduct a comprehensive evaluation of each class. In this paper, the comprehensive evaluation model of university management quality was constructed by combining the network hierarchy analysis method (ANP) and the material element topologizable theory, and the quality of university education management was dynamically evaluated by calculating the correlation function and correlation degree of the constructed evaluation index system. The sensitivity of the 16 index factors in the model was analyzed in detail by using SD software, and the results of the sensitivity analysis combined with the weight values made a comprehensive analysis of the importance of the indexes, which provided a certain basis for the evaluation of university management. And a university class A to be evaluated is selected as a sample, and its evaluation grade is excellent by using the model of this paper, which is consistent with the results of the class in the comprehensive evaluation of the previous semester. It shows that the method can not only reduce the subjective human factors, but also simple calculation and reliable results, which provides a strong support for colleges and universities to effectively improve teaching quality management.
In recent years, with the booming development of computer technology, the application of deep learning methods in power load forecasting is of great significance to improve the forecasting accuracy. To this end, the article uses stacked self-encoder and entity embedding to improve the multilayer perceptron, and constructs a power load forecasting model based on the multilayer perceptron. The effectiveness of the model proposed in this paper is verified on relevant datasets and examples, and a power scheduling decision-making method is proposed and optimized for scheduling. The experimental results show that the various anomalies existing in the original data processed using the model in this paper are basically effectively corrected. After the regulation strategy and optimization adjustment, the original load curve occurred peak elimination and valley filling behavior. This proves the effectiveness of the model and adjustable capacity optimization method proposed in this paper.
Japanese vocabulary corpus is rich and semantically complex, and traditional methods are more limited in dealing with its semantic relations, which makes it difficult to deal with large-scale Japanese vocabulary corpus effectively. In this paper, we first establish the conceptual semantic network of Japanese vocabulary by means of co-occurrence analysis statistics and similarity computation, and construct a vocabulary semantic similarity measure model based on Japanese-specific corpus by extracting the contextual features of Japanese vocabulary. Then, we use machine translation to construct word-vector relations between Japanese and English, and then introduce LSTMs network to learn the sentence sequences co-occurring between Japanese word pairs, so as to complete the modeling of lexical relations between Japanese word pairs. The Japanese vocabulary conceptual semantic network constructed in this paper clearly identifies the center nodes and non-center nodes of the Japanese vocabulary semantic network, and the similarity of Japanese vocabulary pairs under this computation and closer to the fact, compared with the JC algorithm, the algorithm in this paper reduces the gap between the computation results and the manual algorithm to 0.00. In general, the method is conducive to the improvement of the efficiency and the intelligence of the processing of large-scale Japanese vocabulary corpus.
In order to improve the ultra-short-term prediction accuracy of wind power, this paper proposes an ultrashort-term prediction model for wind power based on integrated learning and deep neural network (Bagging-DNN). The method is based on Bagging and DNN, using Bootstrap method to generate sample sets, and training for different training subsets to obtain multiple integrated deep neural network models. By calculating the output of each model, the ultra-short-term prediction results of wind power are obtained. The analysis based on a case study of an offshore wind farm in Shanghai shows that the MAPE of this paper’s model is 5.0078% and 10.9658% when predicting 1h and 4h in advance. The MAPEs are on average 2.4% and 6% smaller than those of other methods, indicating that their prediction accuracy is higher than that of other prediction models. Compared with the BP and LSTM models, the square model in this paper has a narrower width of prediction interval, shorter training time, and more superior performance. In the process of iterative training, the model in this paper has a superior fitting effect.
With a large number of distributed energy storage accessed by virtual power plants, the market trading model based on traditional two-stage stochastic planning faces problems such as large computational volume and single decision result. Therefore, considering the different decision risk preferences of different decision makers, this paper introduces the decentralized trading theory, combines the nonlinear planning theory, and optimizes it through the mixed integer optimization model, thus forming a set of market trading models applicable to complex situations. Taking 8MW distributed wind turbines as the research object for example analysis, the results show that in the middle and late stages of the transaction, as the transaction continues, the total social welfare and the number of transactions under the decentralized trading model based on nonlinear programming gradually reach the optimal value under the ideal state. Compared with other trading models, the value of the increase in the total social welfare of this paper’s model in the peak hour, the normal hour, and the valley hour is more than 15%. This shows that the model in this paper can reduce the cost of electricity and improve the comprehensive social benefits.
Image style migration is a research hotspot in the field of digital media art and artificial intelligence computer vision. The automatic style migration method based on transfer learning (TLST) proposed in this paper undergoes style extraction, style learning and style migration, obtains the style feature matrix, calculates the correlation between the features, and completes the remapping of the content of the original style image. The efficiency of the TLST algorithm is verified by comparing with other models and the application study on real devices. Specific results show that the Precision, Recall and F1 values of TLST are above 0.8, thus, TLST outperforms several other neural network models. The method in this paper reaches a maximum accuracy of about 100% after several trainings, which is better in artist painting recognition. Deploying TLST on MSP432P401R and ARM CortexM7 platforms reduces the average inference time from 156.90 seconds to 146.80 seconds and from 63.021 seconds to 59.324 seconds, respectively. This shows that TLST is able to reduce redundant computation and decrease inference latency.
This paper takes the Pearl River Delta (PRD) urban agglomeration as an example, based on the land use data from the Institute of Geographic Sciences and Resources of the Chinese Academy of Sciences (IGSR). With the help of remote sensing and GIS platform, Landsat image data are deciphered. The spatial and temporal land use change characteristics in the process of urban expansion are analyzed by kernel density analysis, superposition analysis, and regression analysis, and the contribution of each variable to the land resource change is quantitatively assessed. The results show that the expansion rate of the PRD urban agglomeration from 1988 to 2024 shows that Foshan expands from 53.03km² to 107.98km², Shenzhen expands by 6.03km² per year, and Guangzhou increases by a total of 217.64/km². The degrees of freedom of Foshan and Guangzhou continue to decrease, while those of Shenzhen increase. Slope (β=0.226) and built-up land (β=0.003) had the greatest influence on ecological land changes. Each indicator has a significant effect on the ecological land change, and the significance is less than 0.05.
New technological tools and globalized communication platforms in the Internet perspective have brought new opportunities and challenges to the overseas dissemination of Chinese traditional music. In this paper, we use python software to capture 19,471 comment data related to Chinese traditional music on ByteDance Tiktok. Based on the information entropy theory, a node influence model is constructed, and the node influence is measured in terms of the number of terminal nodes and the average degree, so as to deeply analyze the law of information dissemination, and reasonably control and optimize the evaluation of the dissemination path. The results show that the information entropy model can be used to determine the intensity of themes on different dates, among which the entropy values of theme 5, theme 3 and theme 9 are relatively the largest. The communication influence in the new media environment decreases with the increase of average degree and increases with the increase of the number of network nodes. The experimental comparison results show that the algorithm in this paper can effectively select the information dissemination path with high influence.
Carrying out a comprehensive evaluation of the resource allocation capacity of higher vocational education can play a guiding, diagnostic and motivational role in the development path of resource allocation and curriculum system of higher vocational education. Based on the public product theory and resource allocation theory, this paper adopts the principal component analysis method to establish the configuration optimization model and evaluation index system to quantitatively analyze the resource allocation capacity of higher vocational education in Fujian and Taiwan, and to promote the high-quality development of vocational education of e-commerce English. It is known from the study that this paper uses 6 secondary indicators and 22 tertiary indicators to represent the input and output efficiency. Taking the data of Fujian Province as the research object, the cumulative variance contribution rate of physical resource factor and digital resource factor is 83.35%, and the talent cultivation factor and regional service factor is 82.945%, which are the main components of input and output indicators. The average value of the allocation efficiency of vocational education resources in each region of Fujian Province: Minbei>Minnan>Minzhong>Mindong> Minwest. Based on this, this paper gives six paths for the development of ecommerce English curriculum system. Therefore, the findings of this paper can promote the balanced development of higher vocational education system.
Integrated learning methods have been developed so far, and there are still great challenges in automatic cataract detection and computation tasks. In order to solve the problem of low accuracy and sensitivity of cataract grading diagnosis, this paper proposes an improved integrated learning method, EasyEnsemble, for IOL calculation and cataract diagnosis by improving the Adaboost algorithm with selected generations on the basis of undersampling. The cataract ultrasound dataset is selected and compared and analyzed with other methods, and the results show that the AUC, ACC, TPR, and TNR of this paper’s method are around 0.9, and its accuracy and sensitivity are much higher than that of other existing methods. And the experimental results based on the eye ultrasound image dataset show that the method integrated in this paper can adaptively focus on the abnormal region in the eye where cataract lesions occur, with better feature selection, and can more accurately characterize the cortical cataract.
Time series analysis has been applied to the field of education, which can evaluate students’ learning behavior and analyze the efficiency of translation, as well as find out the problems in learning. This study takes a university in the central region as the research object and obtains the video learning data in the business English translation teaching course. The four actions of playing, pausing, skipping and completing are analyzed, and Kmeans clustering and statistical methods are used to analyze the learning atmosphere and fluctuations in learning efficiency. The study shows that the clustering analysis of the learning behavior characteristics data yields three types of characteristic behavior results. The learning efficiency of the first class of learning users > the second class of learning users > the third class of learning users. The learning efficiency of the three types of learning users in stage 4 and 5 are in a relatively low state. The learning efficiency of the three types of learning users in the middle stage is higher. Therefore, the method of this paper is feasible in assessing translation efficiency.
Ecological land use is crucial to the sustainable development of urban areas. This study takes the ecological land in three counties and cities of Baiyangdian in North China as the object, and adopts the methods of land-use dynamic attitude, remote sensing image interpretation, land-use transfer matrix, Moran’s index and geographically weighted regression model to statistically analyze the spatial and temporal evolutions and spatial differentiation laws of each ecological land, and to quantitatively describe and detect the changes of landscape structural characteristics in different time periods. The results show that: from 2014 to 2019, the total area of cultivated land decreased slightly, the area of forest and grassland increased gradually, and the area of construction land increased substantially. In terms of the overall landscape type structural transformation, it mainly occurs between cropland, forest and grassland, and construction land.The difference in the area of forest land increases in 2014-2024, and the diversity and complexity of ecosystems increase.
Sanshou is becoming more and more popular as a comprehensive sport that integrates traditional Chinese martial arts and modern fighting techniques. In this paper, a CNN-LSTM model fused by a convolutional neural network (CNN) and a long-short-term memory network (LSTM) is proposed, which is capable of capturing global information and sequence relationships to realize accurate and real-time recognition of sparring techniques. A dynamic time planning algorithm is utilized to calculate the difference in movement joint angles between the standard and test movement sequences, and a movement evaluation formula is defined to evaluate the sparring movements, which provides intuitive and reliable training suggestions for the trainees, thus improving their learning efficiency. The research results show that the CNN-LSTM model can recognize six kinds of sparring actions with 98.69% recognition accuracy, while the action scoring model proposed in this paper can realize the effective evaluation of sparring actions and achieve fair and impartial auxiliary scoring. Finally, the sparring tactics confrontation decision is proposed to improve the tactical quality and effect of the students during the competition.
College libraries are important information centers in colleges and universities, which are important positions for knowledge storage, communication and discovery. With the development of social digitization and informatization, the quantity and variety of information are changing day by day, and the information needs of university user groups are also changing. Research from data collection and analysis, label extraction to portrait mining applicable to the library user portrait model, combined with hybrid recommendation algorithms from the data collection layer, processing layer, fusion layer, service application layer four levels to build a multimodal dataenabled smart library structure. The K-means algorithm was used to cluster and analyze library users, and four types of users were formed: “pragmatic”, “youthful”, “recreational” and “curious”. The accuracy, recall and comprehensive value F, which are commonly used to evaluate the recommendation effect, are chosen to validate the recommendation results, and the hybrid recommendation integrating user profiles is higher than the traditional collaborative filtering recommendation in recall and F value, and the recommendation effect is good.
With the surge of the wave of artificial intelligence, the innovation and practice of the teaching mode of programming courses in colleges and universities can improve the quality of teaching. Using artificial intelligence technology, this paper proposes four paths, including optimization of teaching resources, strengthening practical innovation ability, enhancing practical teaching, and constructing a diversified reasoning thinking evaluation system. Through the learning resource network, it presents the trajectory of students’ use of programming course resources, accurately obtains the three key attributes of students’ use of resources: content, type, and frequency, accurately portrays students’ learning behaviors, and reflects their reasoning thinking ability in the learning process. Based on students’ learning behavior data, the cognitive layer is modeled to assess students’ reasoning thinking ability. The controlled experiment shows that the mean value of the students’ reasoning thinking scores in the experimental class increased from 65.616 to 73.379, an increase of 7.763 points, and the overall progress of the reasoning thinking ability in the experimental class is relatively large. Meanwhile, the t-test results of the two classes show that the P-values of cooperation ability, problem solving ability and critical thinking ability are 0.001, 0.002 and 0.043 respectively, which are less than 0.05, and there is a significant difference between the two classes.
China is building a new type of power system mainly based on new energy. The large-scale access of new energy, the complex structure of AC-DC hybrid grid, and the application of power electronic devices make the grid faults show more complex modes. Fast and accurate diagnosis of grid faults is a necessary condition to guarantee the reliable operation of power grid. In this paper, based on the theory of equipment operation state diagnosis algorithm of multimodal data fusion analysis of power system, we add the bidirectional long and short-term memory network with attention mechanism, respectively, through Word2Vec and Fast Fourier Transform, extract text and audio data features of power industry, and fuse the extracted multimodal data features. The XGBoost decision tree algorithm is used to achieve the training objectives such as data prediction and pattern recognition. From the extracted time-domain plots, it can be seen that the amplitude of the windings fluctuates between -0.9~0.6m·s-2 before loosening, and the vibration signals after loosening are between -1~1 m·s-2, with obvious amplitude variations when a fault occurs. The error of the prediction curve when a fault occurs suddenly becomes larger, and the error values of the two are 60.491 and 45.469, respectively, and the prediction model proposed in this paper has a high monitoring accuracy for normal operation of the power system.
This paper carries out linear planning for school affairs information, aiming to optimize the allocation of school affairs information resources and achieve the goal of school affairs informationization. Based on the content of school affairs information, current problems and the necessity of resource allocation, this paper constructs a linear planning model, based on which a dyadic model is established to construct a school affairs information resource allocation model based on linear planning. Through relevant experiments. Test the resource allocation effect of this paper’s model. The average number of cases of this paper’s model to solve the optimal solution is comparable to other algorithms, but the computation time is significantly shorter than that of other algorithms, which has a greater advantage of speedy solution degree. In the experiments of small-scale and large-scale problems, the resource allocation model based on linear programming in this paper has the lowest relative deviation index, and has the most excellent effect in solving the optimal solution.
Color has a regulating effect on human emotion, the author, in order to explore the emotion mapping effect of color in animated movies and its relationship with character suitability, introduces the multilayer perceptual machine model, constructs the adaptive color perceptual machine model and the multilayer perceptual machine color emotion recognition model. And the character suitability assessment model is constructed to explore the performance of animated movies in terms of color and character suitability. In the color emotion analysis of animated films, neutral tone, warm tone, and high brightness colors are closely related to neutral and positive emotions, while low brightness and cold tone colors are often related to negative emotions. Warm tones and high brightness colors are conducive to arousing positive emotions in moviegoers, while cold tones and low brightness colors are prone to arousing negative emotions in moviegoers. Red, green, blue, and purple tones are more likely to inspire pleasure in moviegoers. Black and white colors are easy to stimulate negative emotions. When there are 3~10 kinds of colors, the emotion of the picture tends to be positive. Taking the animated film “Journey to Dreamland” as the evaluation object, the film scored 4.17 points on the overall score of color and character suitability, and the viewers are more satisfied with the evaluation results of the color and character suitability of the animated film.
Aiming at the problems of low accuracy of crack monitoring and insufficient efficiency of damage assessment in health monitoring of civil structures, a crack detection and damage analysis system based on YOLO algorithm for civil structures is designed in the study. The crack feature extraction capability is enhanced by optimizing the YOLOX network structure, introducing lightweight convolution and coordinate attention mechanism. At the same time, a new MODSLayer module is designed, which enables the model to extract features in high dimensions of MODL-Head. The system integrates image acquisition and processing, multi-scale crack detection, geometric parameter quantification, and damage assessment modules, and realizes the automation of the whole process from detection to analysis. The MOD-YOLO algorithm F1 score is 0.521, which is 3.6% to 18.6% higher than the comparison algorithm, and the mAP reaches 58.491%, which is also much higher than the comparison algorithm. The results of this paper’s model for crack length as well as width are basically consistent with the real results, with an average relative error of 0.96% and 1.21%, respectively. The system constructed in the study detected that the length of crack No. 7 has achieved the maximum value of 1938.7 mm, and the angle with the base surface reaches 75.7°, which may continue to grow longitudinally. In this paper, the system found that the nonlinear coefficient of the civil engineering construction and the length of the crack has a pattern of “surge-slowly increasingdecreasing”, which indicates that the model has a high sensitivity to recognize the damage degree of the cracks in the civil engineering structure.
Power systems have various structures, and the occurrence of faults is inevitable. In this project, the recovery and reconstruction problem of new energy distribution network faults is studied, the mathematical model of distribution network reconstruction is constructed, the particle swarm algorithm is chosen as the intelligent optimization algorithm for solving the recovery and reconstruction problem of distribution network, and it is optimized by combining the parameter improvement and the genetic algorithm. The improved hybrid particle swarm algorithm in this paper has better optimization searching effect, and the number of evolutionary generations to reach the best fitness value is much smaller than that of the traditional particle swarm algorithm. Taking the IEEE33 node system as an example for case analysis, it is found that this paper’s method has good universality, and when accessing the DG and reconfiguring, the node voltages of the whole system are significantly improved (6.09% and 4.37%) to ensure that all node voltage distributions satisfy the confidence constraints, and at the same time the system’s active network losses are also significantly reduced (57.35% and 40.59%), which reflects the superior fault self-healing performance, and has a very good performance. The performance of fault self-healing has good practical value.
The large-scale access of distributed power sources will accelerate the formation of active distribution networks, which will have a greater impact on the safe and stable operation of distribution networks. In this context, this study constructs a state monitoring model for high proportion distributed energy access distribution network. Firstly, the objective optimization function of distribution network state is established, and then the model is solved by combining genetic algorithm and ant colony optimization algorithm. Simulation experiments are carried out with the IEEE 33-node distribution system as an example. The GA-CAO algorithm in this paper accurately portrays the state change characteristics of the distribution network, and its errors in estimating each state of the distribution network are smaller than those of the GA algorithm, with the root-mean-square error and the average absolute error being reduced by 1.07%~2.46% and 0.35%~3.02%, respectively. Experiments show that the method in this paper improves the accuracy of distribution network condition monitoring and has obvious advantages over other distribution network condition monitoring models, and the monitoring results can provide valuable information for distribution network enterprises as well as managers. In addition, the distribution network can be regulated by optimizing load management and scheduling, applying power management system and optimizing the design of distribution network architecture for the access of high proportion of distributed energy sources, which can promote the safe and stable operation of the distribution network.
This paper introduces an evolutionary game model for path optimization research based on the possibility of maximizing the interests of multiple participants. Through Nash equilibrium and replicated dynamics equations, it explores the evolutionary stabilization strategy of multi-party satisfaction. Taking the electricity market transaction as an example, the assumption conditions and payment functions are set to analyze the strategy evolution under the mutual game of thermal power enterprises, green power enterprises and power grid companies. Combined with simulation experiments, the evolutionary effect of the constructed evolutionary game model is verified. The results show that during the evolutionary game, the equilibrium return is stabilized at 8.758*105 yuan after 140 iterations for the grid company, 3.39*105 yuan after 68 iterations for the green power enterprise, and 4.44*105 yuan after 49 iterations for the thermal power enterprise. The carbon price is increased from 50 yuan/t to 90 yuan/t, and the market clearing tariff is correspondingly increased from 0.12 yuan/kWh to 0.91 yuan/kWh. Corresponding changes in the probability of selection of the 2 types of firms by the grid company. By adjusting the 2 parameters of thermal power price sensitivity coefficient and green power price sensitivity coefficient, the decision-making evolution of the 3 market transaction participants possesses stability.
The expansion of power grid scale puts forward higher requirements on the maintenance and protection level of power grid. This paper focuses on the idea of “architecture design – data processing – optimization solution” to carry out research. Layered system architecture is designed, and multi-module combination realizes the transmission of data flow, real-time data pre-processing and dimensional analysis, and solves the problem of the difference of the magnitude and the phase angle jumping. The Fourier algorithm is chosen to discretize the AC sampling data, and the discrete Fourier transform algorithm reduces the computational redundancy and ensures the computational accuracy and speed. The improved TLBO algorithm is proposed to realize the global coordinated optimization of WAPSS parameters through the elite reservation strategy and dynamic parameter update mechanism. Comparison experiments are utilized to verify the effectiveness of the proposed method. The results show that the three error indicators of steady state recording error, current measurement accuracy, and three-phase phase difference value of the algorithm in this paper do not exceed the specified ranges of 0.55A, 0.55%, and 0.55. The network loss of the system after algorithm optimization decreases to 1.841MW, and the calculation time is only 12.1s, which is better than the comparison algorithm. The parameter optimized motor angle of attack difference is smaller and the fluctuation is smoother.
With the expansion of the scale of smart grid and the improvement of service real-time requirements, lowlatency communication network becomes the key infrastructure to guarantee the automation and control of power system. This paper proposes an intelligent route optimization scheme based on multicast routing algorithm. The layered architecture and performance requirements of smart grid wide-area communication network are analyzed, and the shortest path tree algorithm is proposed. Combined with the multi-constraint QoS model, the improved multi-tree multi-constraint routing algorithm based on cost correction (MTMCR-CC) is designed. By dynamically adjusting the link cost function and constructing multicast tree candidate sets, network congestion prevention, load balancing and fault isolation are realized. Simulation results show that compared with the traditional SPRS and HCARS algorithms, MTMCR-CC always has a lower packet loss rate, the average bandwidth of the link reaches 69.72% of the maximum value, and the success rate of the node 25-position communication reaches 99%, and also performs significant optimization in the key indexes such as node load balancing. In the simulation scenario, the network traffic in all paths is lower than 2.5×107 bytes. It is proved that the proposed algorithm can meet the demand of millisecond response and high reliability of power system.
The increasing size of the power grid and the growing demand for grid security have put forward higher requirements for the performance of power protection systems. Edge computing method is selected as the power relay protection algorithm to design the system framework of relay protection. Meanwhile, the relay protection algorithm based on sinusoidal function model is introduced to calculate the RMS value, phase difference and circuit parameters of the input signal, thus completing the design and construction of the intelligent power protection system. Build the collection process of basic power consumption information of users, and obtain the power consumption pattern of users. On the basis of users’ basic power consumption information, artificial intelligence technology is used to automatically predict the grid load, analyze the power stability, and realize the intelligent control of power protection strategy. Compared with similar systems, the intelligent power protection system designed in this paper maintains the o
The successful completion of electric power operation and maintenance guarantee is related to the safety of regional electricity. This paper analyzes the functional needs of electric power operation and maintenance, and designs the intelligent electric power operation and maintenance guarantee platform through multi-dimensional comprehensive consideration to realize the intelligence of electric power operation and maintenance. On the basis of linear division of load data, transformer load factor-winding temperature rise causal pair is constructed, and its correlation rules are mined. Combined with the short-term load combination prediction method containing predictioncorrection, it predicts and corrects transformer loads at all levels of the substation to reduce the risk of transformer damage and O&M costs. Using actual load data, the effectiveness of the association analysis method and shortterm load combination prediction method is verified, and the technical advantages of the intelligent operation and maintenance guarantee platform are judged. The results show that the transformer intelligent maintenance model based on correlation analysis achieves an overall recognition rate of 0.9 for transformer fault conditions, and is able to realize effective early warning. In the test of short-term load prediction combination method containing predictioncorrection, it can effectively predict three outliers in the load data for two consecutive days, and the fluctuation of load data remains stable after correction.
Aiming at the problem of recognizing construction personnel’s safety gear in the context of smart construction site, this paper designs a surveillance video compression and target detection model based on convolutional neural network. The network is reconstructed by reversible convolutional blocks to save the memory consumption during training. ResNet-50 network is used as the feature extraction network of BCNN, and the task difference maximization mechanism is introduced to construct the RTF-BCNN target detection model. The performance level of video compression and target detection of the proposed model is examined through empirical analysis of power smart site monitoring videos. The proposed video compression model significantly improves the coding efficiency while maintaining the compression performance, with an average time saving of 25.446%, an average PSNR loss of 0.058 dB, and a bit rate increase of basically no more than 3%. Compared to the ResBCNN model without embedded TDM module, the RTF-BCNN model mAP accuracy is improved by 2.446%, the P-R curve area is larger, and the helmet AP increases from 91.89% to 98.26%. Compared with other model running speeds, the RTF-BCNN model FPS value reaches 67.842 frames/s, which is significantly higher than the comparison model. The experimental results show that the method designed in this paper can be effectively used to recognize protective and safety equipment and improve the safety management of construction site workers.
This study proposes a cooperative blockchain privacy data interaction and storage scheme integrating secure multi-party computation (SMPC) to address the consistency and security problems of blockchain privacy data in on-chain and off-chain interactions. Through the combination of layered architecture design (data storage layer, open sharing layer, and arbitration organization layer) and cryptographic techniques (threshold Paillier encryption, smart contract key management), the scheme realizes the “usability and invisibility” and controllable ownership of private data. The program adopts IPFS to store encrypted data under the chain and records the hash address through the blockchain, which effectively solves the problem of limiting the storage capacity on the chain. At the same time, it introduces a threshold decryption mechanism, which requires at least t participants to collaborate on decryption to prevent internal malicious behavior and single point of failure. The experimental results show that compared with the traditional DSSA protocol and Paillier homomorphic encryption scheme, this scheme has significant advantages in computational cost (reduced to 0.35 for vector dimension 5000), communication cost (reduced to 68.81), and operational efficiency (time consumed is 504.81ms for modulus 1024bit), which provides theoretical support for efficient and secure interactions of private data. It provides theoretical support and practical reference for efficient and secure interaction of private data.
This study proposes an intelligent analysis method for students’ movement performance data by integrating binocular vision technology, BP neural network and subgroup computation. Through dual-camera stereo correction and block matching algorithms, high-precision depth information and motion data are acquired, a threelayer BP neural network model based on correlation analysis to screen key indicators is constructed, the nonlinear mapping ability is optimized by combining Sigmoid function, and data normalization and sample grouping are used to improve the model generalization performance. The performance indicator (PI) clustering algorithm is further introduced to narrow the differences of dependent variables within the cluster, and the model training accuracy and efficiency are significantly improved by base adjustment and scaling. The multidimensional analysis showed that the physiological indicators such as morning pulse, blood pressure and blood oxygenation were significantly and dynamically associated with the athletic performance. Compared with the least squares support vector machine and hybrid genetic neural network, the proposed method shows better prediction stability and real-time performance in eight physical measurements, especially in standing long jump (99.41%) and BMI (99.53%), with an average accuracy of 98.2%, which is more than 10% higher than that of the traditional method, and the single prediction time is only 1.3 seconds, which verifies the combination of real-time performance and accuracy of the proposed method. real-time and accuracy.
This study proposes CIFW, a framework for personalized generation and adaptation of civic education content that integrates self-organizing mapping network SOM and deep learning, aiming to address the limitations of traditional recommendation methods in data sparsity, dynamic adaptation of user interests, and matching of resources across education stages. The low-dimensional mapping and dynamic clustering of user behaviors and item features are achieved by introducing an improved Item-SOM model, combining a multilayer perceptron MLP with bilinear feature interaction technology. The CIFW model is further proposed to optimize the feature weight allocation by using the channel attention mechanism and to enhance the higher-order feature combination capability by bilinear interaction. The experiment is based on the data of 30 users’ ratings of six types of Civic Education resources, and comparing the MAE value and coverage rate, it is found that the MAE value of Item-SOM-CIFW is 0.754 and the coverage rate of 68.9% significantly outperforms that of the traditional algorithms User-CF and FCMCF. The test of the number of matches by grades reveals that the fitness value of this model at different stages of the college freshman to the senior year, e.g., G5’s 1469 group improves up to 43.3% compared with the control group, which verifies the adaptability of dynamic recommendation for Civic Education.
Aiming at the problem of accounting information security under the financial co-working mode, this paper proposes a data integrity verification algorithm based on big data analysis. The intelligent accounting cloud platform based on cloud computing is analyzed to build the overall system architecture and the network topology of cloud storage data. A single-audit scheme based on the encryption-evidence chain algorithm is proposed, which uses the ZSS short signature algorithm to calculate the labels of data chunks, and improves the verification efficiency through bilinear pairs and generalized cryptographic hash functions. Simulation tests and experimental results based on the AliCloud platform show that all five algorithms can complete the corresponding data processing work in a short time. When verifying 500 pieces of data at the same time, the total elapsed time of the ZSS short signature scheme after the introduction of bilinear pairs and generalized cryptographic hash function is 14753.96ms, which reduces the elapsed time by 50.66% compared with the original scheme. The average verification time consumed in ten experiments with data sizes of 1MB, 50MB, 500MB, and 1000MB is 601.12s, 644.73s, 987.17s, and 1267.32s, respectively, and the time trend consumed by the TPSP to generate the hash value is basically the same as that of the verification time, which proves that the scheme in this paper is safe and efficient.
Improving the level of enterprise internal audit is the focus of reducing the business risk of enterprises. This paper is based on the hierarchical analysis method to mine the indicators affecting the quality of enterprise internal audit work, and construct the indicator system. Combined with big data cloud computing and K-Means algorithm, it carries out clustering analysis and character portrait of enterprise employee behavior data to find the types that need to be focused on by auditors. Take procurement approval behavior as an example to study the specific operation of internal audit quality optimization based on cloud computing. Compare the scores before and after the digital transformation of internal auditing to determine its quality improvement effect. The results show that through cloud computing statistics and cluster analysis, it is found that there is procurement fraud within the enterprise where the unit price of procurement is higher than the market price by 400 yuan, and it is necessary to focus on rectifying the internal auditing process in all aspects of procurement. The score after the digital transformation of internal audit is 81.25 points, much higher than the 63.38 points before the transformation, and the audit quality is improved greatly.
With the continuous expansion of e-commerce business scale as well as the increasing variety, its supply chain inventory management is facing the complex multi-objective decision-making problem of balancing the total cost and total distribution time. Based on the ultimate goal of inventory management control and optimization, this paper constructs a set of e-commerce supply chain inventory performance evaluation system consisting of three primary indicators and 17 secondary indicators. Fuzzy hierarchical analysis is chosen as the calculation method of indicator weights, and the application steps of fuzzy hierarchical analysis are analyzed. Then the triangular fuzzy number method is used to convert fuzzy uncertain linguistic variables into definite values and accurately quantify the performance of the evaluation object. Combining the fuzzy hierarchical analysis method with the triangular fuzzy number operation method, the weights of the indicators of the performance evaluation system and the performance evaluation scores of P e-commerce supply chain inventory are calculated. Subsequently, fuzzy numbers are utilized to describe the product market price with ambiguity and target weights, and a fuzzy multi-objective decision-making model involving multi-level supply chain inventory is proposed. A genetic algorithm is introduced to solve the optimal solution set of the multi-objective optimization model. In the multi-objective optimization model solution for P supply chain inventory, the solution algorithm designed in this paper achieves a total cost lower than 450,000 yuan and a total delivery time lower than 57.5 hours after 60 iterations, and it is more stable.
This study takes the landscape zone along the river in City A as the research object, and establishes a fuzzy multi-objective optimization model with three goal-oriented objectives of economic priority, ecological priority and sustainable development in combination with the urban master plan. Markov transfer matrix is introduced to identify the optimization effect of the landscape zone along the river in A city. Based on the multi-objective optimization results and landscape pattern analysis, the landscape spatial structure design method is proposed. The comprehensive score derived from the planning of Method A is 69.9, the comprehensive score derived from the planning of Method B is 81.5, and the suitability score derived from the planning of the proposed method is 91.8, which proves that the planning of the proposed method in this paper has a higher landscape suitability and a better planning effect. The study promotes the coupled development of efficient land resource utilization and ecological service function enhancement.
This paper uses a questionnaire to quantitatively analyze the cognitive development, social development and study habits of 350 kindergarten students. Combining the independent samples t-test with multiple stepwise regression modeling, it explores the effects of gender, school segment and education mode on the effectiveness of preschool education. The estimation of unknown coefficients was obtained using the great likelihood method, and regression model averages were established. It was found that girls outperformed boys in the three dimensions of cognitive development, social development, and study habits, with p-values of 0.015, 0.026, and 0.001, respectively, with the greatest difference in study habits (t = -3.018, p = 0.001). Among the educational styles, verbal expression (β=0.153, p=0.033) and logical thinking (β=0.114, p=0.002) showed a significant positive effect, cooperation (β=0.133, p=0.023) had a practical preference for the actual contribution of preschool education effects, and learning strategies (β=0.612, p=0.003) were the most significant predictive variables. The results of the study provide empirical evidence for optimizing preschool education practices and reducing gender differences.
Internet public opinion triggered by public safety incidents, as an important content of government response, its response effectiveness profoundly affects the life of the public and the work of the government. In this paper, based on the online public opinion response ability of W Municipal Government on public security incidents, a set of government online public opinion response ability evaluation system consisting of 3 primary indicators and 12 secondary indicators is initially designed. And the index structure is reasonably modified by calculating and analyzing the principal components of each secondary index. Then the hierarchical analysis method is used to quantify the logic and association in the indicators into numerical values. Combining the hierarchical analysis method with the entropy value method, the AHP-entropy value method combining subjectivity and objectivity is formed to determine the weights of each indicator. Taking the trend of online public opinion in the viaduct collapse incident of City W as an experimental object, the evaluation system of governmental online public opinion response capacity is adopted to evaluate the online public opinion response performance of City W government. After calculation, the performance of Municipality W in the 10 secondary indicator dimensions is recognized by the public. It indicates that in the management of public safety online public opinion, the W municipal government has a relatively fast and reasonable response capability.
In this paper, we select the structure of Cell Simultaneous Recurrent Neural Network (CSRN), which is good at dealing with two-dimensional structural data processing, as a prediction method for multilevel information data, and explain its network structure and operation principle. It also describes the structure of four important elements, namely, unit state, forgetting threshold, input threshold and output threshold, in the special long and short-term memory network of recurrent neural networks. The multilevel information is transformed into multimodal information, and the data information of different modalities is analyzed using the projection tracing method. Combine with recursive neural network algorithm to construct a multilevel information extraction model. Comparing the extraction performance of similar modeling algorithms on multimodal information data, the designed multilevel information extraction model performs the best in all indicators on data set-1. The F1 value of 86.34%, the precision rate of 88.84%, recall rate of 88.22% and F1 value of 88.52% in Marco-F1 values show excellent multilevel information extraction performance.
This paper proposes an adaptive detection method based on multi-dimensional data analysis for the problem of identifying network security vulnerabilities in digital campuses. A dynamic optimized vulnerability detection framework is constructed by mining the potential features of campus Web logs, combining the unsupervised TF-IDF anomaly load extraction technique with adaptive machine learning model. Among them, the TF-IDF algorithm efficiently screens abnormal requests from 65 million raw logs by quantifying the degree of parameter abnormality. The adaptive model integrates AutoML hyper-parameter optimization and convolutional neural network to achieve dynamic update of detection rules and deep attack pattern extraction. Experimental results show that the method is significantly better than traditional methods in detection efficiency and accuracy: the average detection time is only 54ms, compared to 262ms and 220ms for penetration testing and black-box genetic algorithms, respectively, and the vulnerability detection rate is increased to 100% (0% false positives, 0% misses) and the full vulnerability coverage is completed in the test sites testphp and aisec with a scanning time of 249.57s and 78.13s, respectively, which is much faster than that of traditional methods. The scanning time of testphp and aisec is 249.57s and 78.13s, respectively, to complete the full vulnerability coverage, which is more than 60% higher than the efficiency of AIscanner and WebVulScan tools. The study verifies the dual value of multidimensional data analysis and adaptive modeling in campus network security protection, and provides a feasible solution for realtime vulnerability identification in education informatization scenarios.
With the rapid development of cloud computing technology and big data analysis, job search and employment services for college students are gradually evolving in the direction of intelligence and precision. This paper proposes a personalized job recommendation model that integrates dynamic behavior modeling and improved collaborative filtering algorithm. An elastic resource scheduling framework based on cloud computing is constructed, and the response efficiency of the system is improved through inertia weight optimization and task allocation strategy. A behavioral-interest model is established to solve the problem of dynamic updating of user preferences. Introduce time decay factor to improve collaborative filtering algorithm and enhance the timeliness and accuracy of recommendation system. Based on the data of finance and economics graduates from University B, the average accuracy of the improved algorithm and the original algorithm are 0.47 and 0.67 respectively, and the average recall is 0.51 and 0.65 respectively, which proves that the improved algorithm in this paper is able to effectively match the interests of job seekers with the characteristics of the jobs, and it has the value of application in the college students’ career planning.
In this paper, we use 3D modeling software to establish a human body model by combining the data of martial arts movements. Through Newton’s second law of motion force process “isolation method” research, calculate each link of the human body force situation. Using motion capture technology to compare and analyze the standardization of the athletes’ wushu movements, and provide targeted guidance to prevent common patellar strain injuries. A controlled experiment was set up to compare the effects of wushu sports skill enhancement and injury prevention based on mechanics simulation technology and traditional teaching methods. The results showed that the average skill score of the experimental class assisted by mechanics simulation technology was 6.61 points higher than that of the control class, and the rate of individual goal achievement was 0.80-0.92. Only 8 people suffered from patellar strain injuries during the training process, and only 10 major injuries occurred during the season, and more than half of them did not need to undergo surgery. Wushu movement analysis through mechanical simulation can effectively improve athletes’ skills and reduce the risk of injury.
This paper takes a harvester as an example to analyze the components of a precision operation control system for agricultural machines. A target detection model (SSD) is introduced for pedestrian detection in the farmland environment. The SSD-Mobilenet network model is used to improve the detection real-time. Further fusion of Feature Pyramid Network (FPN) realizes multi-scale feature extraction for detecting targets and enhances target detection accuracy. Design a depth sensor-based combination of far and near field stubble multi-information detection scheme to improve the accuracy and stability of agricultural land environment detection. Verify the effectiveness of the method in this paper through model training and simulation experiments, etc. The results show that the threshold value is set to 0.55, and the sensor detection effect is the best. In the model training, the value of the intersection and merger ratio is close to 1, and the loss value is close to 0. The enhanced target detection algorithm has a higher recognition effect than the 2 comparative algorithms in all 6 types of pedestrian states. In the special scene simulation experiments, the average reward value of this paper’s algorithm is finally stabilized in the interval of 0.1 to 0.3, and the path length is stabilized at about 100 steps with less fluctuation, and the precise operation assistance effect is better than the comparison algorithm.
In order to utilize the advantages of deep neural networks to further improve the interaction of English classroom teaching, this paper sets out to propose a language model based on SCN-LSTM by using CNN and LSTM as text feature extractors respectively, and jump-connecting the SCN structure in the convolutional layer to ensure the convergence speed of the language model from the existing experience of intelligent technology in English teaching. ReLU is utilized as the activation function and cross entropy as the loss function in the model training. The SCN-LSTM language model is brought into the speech recognition system as a basic model to form an intelligent English teaching system. Analyze the perplexity index of SCN-LSTM language model, bring it into the teaching scene, and analyze the language analysis effect of combining SCN-LSTM language model and speech recognition model. Design the intelligent teaching interaction mode to be brought into the English classroom teaching, and analyze the interaction degree of English teaching between the intelligent teaching mode of SCNLSTM language model and the traditional mode. The teacher-student interaction, student-student interaction, and human-computer interaction in the experimental class in the intelligent teaching mode are 7.67±2.82, 7.89±1.95, and 8.22±2.64, respectively, which are higher than that of traditional English classroom teaching.
Aiming at the problem of limited generalization ability of U-Net network to images of different scales and resolutions in image segmentation tasks. In this paper, a multi-scale feature extraction convolutional block is integrated into U-Net to enable the model to simultaneously consider image information at different scales, thus obtaining a more comprehensive and rich feature representation. In order to alleviate the limitation of the influence of the convolution kernel size in the convolution operation, a self-attention mechanism is embedded on the basis of the multi-scale feature learning image alignment network to cross-fertilize and match the feature representations of different images to form a new UNet backbone network, i.e., the LK-CAUNet model. Segmentation effects of different modal training on image alignment techniques are analyzed using T1, T2, T1ce, Flair single modality and a combination of all four modalities used simultaneously. The segmentation performance of LK-CAUNet model is analyzed on the dataset. The DSC metrics of LK-CAUNet model under the combined training of T1+T2+T1ce+Flair modalities are WT=93.56%, TC=89.42%, and ET=83.22% respectively.
This paper analyzes the image processing scheme of the capture detector in a spot position detection system based on a four-quadrant detector. Capture unit image by using statistical averaging method for noise template production, combined with the differential shadow method to remove the background noise. The spot center of mass coordinates are obtained to capture the beam. The optimized median filtering scheme, twodimensional Otsu algorithm are used to process the laser spot image respectively, and then Canny operator is applied to extract the edge of the spot, which achieves the detection and localization of the target spot, and prepares for the initialization of the spot tracking algorithm. The related filtered light spot tracking algorithm is proposed, and the operation process is arranged for it. The spot position detection test conditions are built, and the related filtered spot tracking algorithm is experimentally verified and analyzed. The root-mean-square difference of the correlation filtered spot tracking algorithm for linear and curved trajectories is less than 5 mm, which shows that the correlation filtered spot tracking algorithm expands the detection range of spot position and improves the detection accuracy of spot position without increasing the complexity of the algorithm.
Machine vision 3D modeling technology has received more and more attention due to its great commercial application value, and has become a fundamental technology in multiple fields. The article proposes a multi-view video 3D target modeling method combining SFM and NeRF network. The growth of seedling plants is taken as the research object, and the multi-view video of seedling plants is obtained by recording video. Python development platform was used to obtain the estimation of image position through COLMAP software, on the basis of which the image position was inputted into NeRF network to realize the 3D target modeling of multi-view video, and the similarity matrix and KNN algorithm were used to cloud the 3D model, and statistical filtering was introduced to remove the outliers of the point cloud. The combination of SFM and NeRF can significantly enhance the accuracy of multi-view video 3D target modeling, and the overall reconstruction efficiency and quality are high. Therefore, actively exploring the application of deep learning techniques in multi-view 3D target modeling can further promote the development of 3D target modeling technology.
Enhancing the digital literacy of physical education teachers in vocational undergraduate colleges is an important part of promoting digital teaching reform and cultivating digital talents. Based on combing the concepts and components of digital literacy of physical education teachers in vocational undergraduate colleges, the article establishes a digital literacy evaluation system for physical education teachers from five dimensions: digital awareness, digital knowledge and skills, digital application ability, digital social responsibility, and professional development level. Then, based on the structural equation model estimated by partial least squares, the relevant factors affecting the digital literacy of physical education teachers in vocational undergraduate colleges were proposed from the aspects of individual, environment and behavior, and the research model of influencing factors was established. Based on distributing questionnaires and obtaining relevant data from several vocational undergraduate colleges, the overall level of current digital literacy of physical education teachers and the degree of influence of each factor on it were explored. The results showed that the average digital literacy score of physical education teachers in vocational undergraduate colleges was 4.12, the overall level of digital literacy was high, and there was a certain degree of variability among different types of physical education teachers. Individual, environment and behavior all have a significant positive effect on the digital literacy level of physical education teachers in vocational undergraduate colleges at the 1% level. Therefore, the improvement of digital literacy of physical education teachers in vocational undergraduate colleges and universities needs to strengthen the training efforts of digital technology, the reasonable use of tools to explore the value of physical education teaching in depth, and promote the internalization of digital literacy of physical education teachers.
A large amount of information related to earthquakes is released and widely disseminated on the Internet, but there may also be some misleading views, which may generate a large public opinion risk if emergency countermeasures are not quickly formulated. In this paper, multi-user web crawler technology is used to obtain the text data of public opinion after the Sichuan Luding MS 6.8 earthquake, often the crawled text data contain disturbing information, and the data preprocessing work is completed through the steps of word splitting, de-duplication and labeling. After that, the text is transformed into word vectors that can be read directly by computers using the BERT model. The word vectors are put into the LSTM model for training, so as to realize the dynamic monitoring of public opinion sentiment of Sichuan Luding MS 6.8 earthquake. With the dual support of dataset and evaluation indexes, the model of this paper is evaluated and analyzed. Within 72 hours after the Sichuan Luding MS 6.8 earthquake, the information exposure rises to 532647420660 items, which attracts extensive attention from the society, and with the evolution of time, people’s concern about the earthquake public opinion will gradually decline, which comprehensively outlines the change of public opinion sentiment dynamics. In addition, in the intelligent detection of Sichuan Luding earthquake public opinion sentiment dynamics, this paper’s model detects accurately up to 93.42%, much better than the CNN model, which indicates that this paper’s model is able to guide users to the correct public opinion.
The risk problems of listed companies will not only bring great losses to the enterprise, how to find out the risk information from the many data of the enterprise and take risk prevention in advance is crucial for the healthy development of the enterprise. Combining relevant research results with network crawling technology to obtain research data, and pre-processing the disturbing information in the data. After setting the enterprise financial risk prediction index system and model evaluation indexes, the KPCA algorithm is used to downsize the prediction index system, followed by the construction of the enterprise financial risk prediction model based on the XGBoost algorithm, and the application of the model is analyzed. The prediction accuracy of this paper’s model for ST enterprise financial risk in 2022 is more than 0.9, indicating that the prediction model constructed in this paper has excellent application value and promotes the development of intelligent detection of enterprise financial risk.
In order to better utilize the groundwater seepage field under artificial conditions as a technical tool, it is necessary to study the infiltration properties of soil, the infiltration law of groundwater in the soil layer and its relationship with engineering. Therefore, this paper takes the HM area as the study area according to its hydrogeological characteristics, and divides the aquifers into submersible aquifers as well as the Ⅰ, Ⅱ, and Ⅲ pressurized aquifers in order from top to bottom. The hydrogeological conceptual model was established, and the soil deformation direction was analyzed according to the Terzaghi effective stress principle to form a coupled groundwater flow-soil deformation model. On the basis of the finite element discretization method, the finite element governing equations of the Bio-consolidation theory are considered to be established by the Galyokin weighted residual method to solve the previously constructed coupling model. According to the method of model identification, the hydrogeological parameters of the study area are identified and calibrated, and the water storage rate of the Ⅰ pressurized aquifer is slightly higher than that of the Ⅱ pressurized aquifer, and the average value of the zonal water storage rate is 0.00007385, which is 0.00002048 higher than that of the Ⅱ pressurized aquifer. The coupled soil-moisture deformation analysis is carried out, and the average water content in the upper layer of the lower sand basically agrees with the change of vertical deformation, and the 0- 5h average water content decreased from 23% to 17%, after 5h in a stable state, it can be seen that pumping – recharge this process, the soil structure in the two stages of compression deformation, will reach a relatively stable state.
As a comprehensive course, the study travel course is well suited to be offered in higher education. In the context of the country’s great attention to higher education and study travel, the development of study travel courses in higher education is lagging behind. In this paper, we attribute the study tour path planning objective to the TOTSP problem, define the travel time function of TOP path, and solve the TOTSP problem by mixing particle swarm algorithm and genetic algorithm. Using association rules to set up courses in the process of research and study travel, the efficiency of professional course setting of research and study travel is measured by DEA model. The shortest time using the particle swarm algorithm based on time factor is [3.536,4.154]h, and the maximum time saving degree reaches 25.527%. Among the study population, there are 20 courses such as Principles of Management and Corporate Strategy that have been set up to be purely technically effective, accounting for 71.43% of the courses. The remaining 8 courses had a PTE of less than 1. There is still room for improvement in terms of classroom setting efficiency.
The integration of elements of Civic and political education in physical education teaching in colleges and universities is not only an important initiative to deepen curriculum reform, but also a necessary path to cultivate high-quality talents with comprehensive development. The study uses a questionnaire survey to understand the problems of the development of Civic and political education in physical education teaching, and then applies qualitative comparative analysis methods to analyze the intelligent path of the integration of physical education teaching and Civic and political education elements. On this basis, the multidimensional adjustment path of Civic and political education in physical education is investigated. The results found that the proportion of students with insufficient understanding of the connotation of sports Civics and the proportion of teachers with weak Civics education ability both exceeded 60%, and nearly 80% of the sports courses lacked the tradition of Civics content and teaching methods. Through the group analysis, five levels of adequate solutions are excavated, which can cover 80.8%~95.8% of the cases, and several important influencing factors for the integration of sports teaching and ideological and political education are obtained, such as practicing the socialist core values, tapping into the ideological and political elements of sports courses, and so on. It is necessary to strengthen the construction of ideological and political education awareness and capacity, clarify the teaching purpose and enrich the content of moral education, reform the assessment system of traditional physical education courses, promote the reform of physical education courses in colleges and universities, and strengthen the construction of campus physical education culture, so that the elements of Civic-Political education can be better integrated into physical education teaching.
Currently, personalized learning supported by big data has become a research hotspot in the field of education. This study applies data mining technology to English learning and constructs a personalized path generation system for English learning by using online learning data from new media teaching environment. Through learner profile modeling and personalized learning resources recommendation, we generate learning paths adapted to students’ level and learning habits. The high accuracy of the personalized learning resource recommendation method in this paper is verified through experiments, and its check accuracy and check completeness rates are 6.35%~22.23% and 12.91%~27.35% higher than those of the comparison methods. Students’ pass rate of the English general examination is increased to more than 70% after applying the system, and most of the students agree in the personalization, learning effectiveness dimension and behavioral willingness dimension, which reflects students’ good satisfaction with the system. The study shows that the personalized path generation system for English learning based on data mining in this paper is able to stimulate students’ interest and effectively improve their learning motivation and English learning level.
This paper explores the development strategy of rural characteristic industry, takes the development strategy of characteristic forest recreation tourism industry of village A as the research object, and introduces SWOTAHP model to study it. The advantages, disadvantages, opportunities and threats of the characteristic forest recreation tourism industry of Village A are analyzed through SWOT, on the basis of which the evaluation index system for the development of the characteristic forest recreation tourism industry of Village A is constructed by the AHP method, followed by quantitative research. After calculating the weights of indicators and the comprehensive intensity of indicators, the four-sided diagram of the development strategy of the characteristic forest recreation tourism industry in village A is constructed by calculating the intensity of coefficients of the development strategy, azimuth angle and other parameters. The weights of the guideline layer in the evaluation index system of the forest recreation tourism industry in village A are advantages (0.2568), disadvantages (0.2574), opportunities (0.2626), and threats (0.2232). The development strategy of the characteristic forest recreation tourism industry in village A is based on the AHP method, and then the quantitative research is carried out. P point of the center of gravity of the development strategy of the village’s characteristic forest recreation tourism industry is within the scope of the opportunity-type area, and the coefficient of strategic intensity is greater than 0.5, and the opportunity-exploitation type of development strategy should be adopted.
With the rapid development of economy and society, the employment pressure of college students increases year by year. In order to improve the employment competitiveness of college students, innovation and entrepreneurship education has become an important part of higher education. This paper constructs a big data platform for innovation and entrepreneurship education in colleges and universities, which includes data collection sources, data analysis, and data prediction. Apriori algorithm is used to correlate positive-willing students with negative-willing students, and K-means algorithm is used to assess students’ entrepreneurial thinking and explore new ways to personalize innovation and entrepreneurship education. The results of the study show that 70.3% of students believe that they choose to start their own business after graduation, and that being able to grasp entrepreneurial policies in a timely manner during college is an important reason for their decision to start their own business, and that the combined effect of motivational and resistance factors affects the willingness of college students to improve their entrepreneurial ability through participation. The results obtained by using the K-means algorithm provide colorful and targeted career planning development paths for students with different characteristics, which provides a good development direction for the personalized teaching method of innovation and entrepreneurship education.
This paper discusses in depth the operation process of the financial cloud platform, including the three parts of cloud collection, cloud processing, and cloud products, and describes its business design process. Combined with the financial data of Enterprise A from 2020 to 2024, it studies the effect of financial cloud platform on the integration and application of enterprise financial performance, management level and business sharing efficiency. And through a questionnaire survey, several employees and executives from various departments of Enterprise A were selected to analyze the impact of the financial cloud platform on the digital transformation of the enterprise by using the Richter Scale. The financial cloud effectively improves the performance of financial indicators of Enterprise A. For example, the return on net assets in 2022~2024 increases by 2.06~6.6 compared with the industry average. From 2020~2024, the operating revenue and net profit of Enterprise A increase to 108.484 and 43.778 billion yuan, respectively. With the implementation of the financial cloud platform, the basic business staff of Enterprise A shrinks to 49 people, the business cost decreases to 324 million yuan, and the efficiency of business processing improves significantly. The overall recognition of the effectiveness of the enterprise’s digital transformation under the financial cloud platform by the investigators of Enterprise A is 4.34 points, which indicates that the financial cloud platform has a facilitating effect on the enterprise’s digital transformation.
In this study, a corpus selected from All Tang Poems was collected, and the information in the text about the study of this paper was extracted through data cleaning, de-duplication and other operations. The LDA topic model is used to classify the topics of Tang poems according to the topic words appearing in the poems. Combined with the TF-IDF algorithm, the probability distribution of natural imagery themes in Tang poems is calculated. By analyzing the emotional indexes of different natural imagery themes in Tang poems, the emotional characteristics embodied by the author in the poems are studied. In this paper, the LDA method is used to categorize the themes of Tang poems more accurately, and the theme words contained under each Tang poem theme are closely related. TF-IDF can be used to effectively determine the themes of Tang poems, such as the probability distributions of “natural imagery” and “wandering the world” in “The End of Spring”, which are 0.214 and 0.550, respectively. In Tang poetry, the theme of “natural imagery” had the lowest positive affective index of “cold rain” (0.17), and “pine and cypress” had the highest positive affective index of 0.83. In Tang poems, the high-frequency words related to the artistic conception of mountains are “moon”, “rain”, “smoke”, etc., which appear more than 15 times, which verifies the applicability of the LDA model in the text mining of Tang poems.
With the complexity of environmental problems, the implementation of environmental laws faces many challenges. This paper proposes an intelligent decision support system based on radial basis function network and Takagi Sekino fuzzy model. The radial basis function network has a strong ability to predict the change trend and can efficiently learn and fit the complex data in the environmental law problems. Following the introduction of the TS fuzzy model containing a large number of fuzzy rules, the inference module of the intelligent decision support system is constructed, which is responsible for simplifying the complex nonlinear problem into a linear correlation problem, in order to output a simpler and clearer discretionary result that meets the legal requirements. The research results show that radial basis function network and T-S fuzzy model achieve the most excellent performance compared with the comparison algorithm, and the classification accuracy of T-S fuzzy algorithm is improved by 0.176 compared with the simple fuzzy algorithm, and the output of the system is consistent with the realistic decision-making results on the four major influencing factors of the illegal circumstances, harmful consequences, economic conditions and mental quality, which are highly compatible with the existing legal structure. . The article concludes by adding strategies to improve the legal appropriateness of intelligent decision support systems, which contribute to the objectivity of decision-making on environmental legal issues.
With HV/EHV DC transmission gradually becoming the main mode of regional power grid interconnection, the problem of multiregional protection coordination of AC/DC hybrid power systems has become an important issue that needs to be concerned and solved. Based on the relevant theoretical knowledge and simulation platform, the AC/DC hybrid power system is designed, and then the multi-area protection coordination problem of the system is converted into a nonlinear planning problem by combining the concept and characteristics of distributed computing. Based on the objective function, constraints, and optimized particle swarm algorithm, to design the multi-area protection coordination scheme of AC/DC hybrid power system, and the scheme is empirically analyzed. The optimal protection coordination time of the AC/DC hybrid power system with the introduction of distributed generation equipment is 2.531s, i.e., after the optimization of the algorithm in this paper, the protection coordination performance of the system is further optimized, so that the system can better serve the electricity customers.
The power grid is an essential infrastructure for social and economic development, and the development of the power grid has always been a matter of national importance. The steady and rapid development of the world economy in recent years, the rapid development of the economy has also brought the development of the electric power business. This paper establishes the evaluation indexes in the evaluation of grid investment efficiency, the relationship between the indexes and the impact on the final comprehensive post-evaluation, and proposes a comprehensive post-evaluation model based on the improved hierarchical analysis method (AHP) and support vector machine regression (SVR). The improved AHP method is utilized to determine the weights of each evaluation index in the comprehensive post-evaluation index system, and then the comprehensive evaluation is carried out by SVR to improve the accuracy of the evaluation results. By setting the model parameters and using the MSE, RMSE, and MAE assessment methods to evaluate the grid investment benefit assessment model of AHP-SVR, the MSE was 1.64%, the RMSE was 4.21%, and the MAE was 12%. The assessment model is used to predict and analyze the investment efficiency of the grid enterprise in October 20232023, and the results are in line with the actual situation, providing targeted optimization suggestions for the investment efficiency of the grid enterprise.
With the rapid development of the economy and the increasing improvement of people’s living standards, the social demand for electricity is increasing, and the construction of a strong and reliable power grid seems to be crucial. Grid investment construction is directly related to the development of the economy, the improvement of people’s living standards and the safe and economic operation of the grid. In this paper, according to the construction principle of index system, the index system for analyzing the investment efficiency of power grid enterprises is established, the research theory of system dynamics is introduced, and the simulation model of power grid investment efficiency is constructed. The parameters of the model are set, and the economic benefits generated by the investment in power grid of Province A are simulated from the economic benefits of the power grid, social benefits and environmental benefits, and the investment benefits are analyzed by using the super-efficient DEA model. After the simulation analysis of the investment benefits of power grid in province A, it can be proved that the simulation model of power grid investment benefits based on system dynamics established in this paper is scientific and effective. H grid company is selected as the object of empirical research, H grid company investment comprehensive efficiency is low, mainly because the technical efficiency constraints on the improvement of comprehensive efficiency.
In this paper, a two-stage robust optimization model based on mixed-integer linear programming is proposed for the problem of resilience enhancement and resource scheduling optimization of distribution networks in coastal cities under extreme disasters. The optimization model of active distribution network power supply restoration is constructed to realize multi-resource cooperative scheduling by combining linearized tidal current constraints. A line maintenance team scheduling model is established to optimize the fault repair path and sequence. Design the two-stage robust optimization framework, and realize the master-slave problem iteratively solved by the column constraint generation algorithm. The simulation results show that under the three fault scenarios, the SRCL indexes of Case3 are improved by 31.108%, 39.321% and 27.42%, and the RRCL is improved by 4.355%, 19.853% and 6.703%, respectively, compared with that of Case2, and the voltage overrun problem can be effectively suppressed. The robustness analysis verifies the adaptability of the model to the uncertainty of line maintenance time, and provides decision support for the formulation of post-disaster recovery strategies.
For the problem of the existence of time delay in information transmission in power system which affects the stability of power system, this paper takes the remote control of the stability of power system as the research purpose. Radial Basis Function (RBF) neural network is introduced to define the adaptive control law for discrete nonlinear systems. Thus, a discrete adaptive neural network is constructed to estimate the unknown parameters and uncertainties within the power system. Then for the single machine infinity power system, establish a more realistic nonlinear generalized system mathematical model, for the analysis of this paper to provide a theoretical basis for research. For the optimization of power system stabilizer when the power system generates low-frequency oscillations, the Mothfly Flame (MFO) algorithm is selected for the coordinated optimization and tuning of controller parameters. Based on the multi-objective function, the optimal parameters of the controller are optimally solved under different time delays. Combining the above, the design of remote control strategy for power system based on adaptive control is completed. In the numerical simulation experiment, the coordinated power system controller starts to converge in about 1s, and the overall oscillation amplitude is small. The excellent robustness of the power system controller in remote control based on adaptive control algorithm is demonstrated.
With the expansion and complexity of the power system, the safety monitoring of the substation operation environment has become a key link to ensure the life safety of power operators and the stable operation of equipment. This study proposes a safety monitoring method for substation operation that integrates high resolution remote sensing technology and improved YOLOv5 deep learning model, and constructs a complete monitoring system through three core modules: remote sensing image preprocessing, target detection algorithm optimization about safety equipment and dynamic detection of dangerous areas. In remote sensing image segmentation, a multithreshold segmentation method is used to eliminate geometric distortion and radiation distortion and extract key feature information. For the problem of small target detection in complex scenes, the YOLOv5 model is improved, the coordinate attention mechanism CA is embedded to enhance the feature extraction capability, and the SPPF module is reconstructed by using the large kernel separated attention convolution, which is combined with the GD aggregation-distribution mechanism to optimize the necking network and to improve the multi-scale target detection accuracy. The experimental results show that the improved model has a denoising performance PSNR of 28.98dB, an SSIM of 0.874, and a safety equipment detection F1 value of 95.10% for insulated suits and 95.55% for safety helmets. The average accuracy of hazardous area misentry detection is 95.85%, etc. are significantly better than YOLOv3, Faster RCNN and other comparative models, and the computational efficiency is high, and the detection speed reaches 7.26ms/mg.
The continuous expansion of the power supply grid scale and the high proportion of renewable energy access make the dynamic change characteristics of the grid load more and more significant, and the traditional power supply grid division method has been difficult to adapt to the complexity and variability of the power supply operation requirements. In this paper, the research of scientific planning method of power supply grid is carried out. By clarifying the definition of power supply unit, and based on the load transfer mode of the regional scope. Corresponding the planning area to different power supply grids, combined with the load characteristics, the grid planning process of power supply grids is designed. The trend extrapolation method is selected as the load forecasting method within the built-up area with high regional development level. Meanwhile, a gray Verhuslat model is established to correct the prediction data and improve the prediction accuracy. After obtaining the load characteristics of the grid, the division of power supply is carried out on the basis of power supply grid division, and the power supply unit division model is constructed. Considering the technical differences between inter-station and intra-station power supply unit division, a technical framework of power supply unit division order and iterative division is proposed. By optimizing the power supply units under dynamic load, the grid division within the power supply area is completed. By using this model to optimize the grid division of power supply in the W area, it is expected that the line insulation rate, the line power supply radius compliance rate and the power supply automation coverage rate will be increased to 100%, which can satisfy the load development demand and power supply reliability in the area.
The development of digital technology provides more possibilities for the learning of students in French courses. This paper explores the learning path design algorithm for French courses with the research purpose of personalized assisted learning. The learner portrait model is applied to the design of French courses, and the optimization and improvement of French learning paths are carried out by analyzing and combining the learning process of learners. Then, from the perspective of blended learning and the personalized learning interests of French students, we describe the parameterized representation method and process of French students’ learning process data, student characteristics and knowledge point information. Combining the above data parameters, the framework of Sequence Generation Algorithm Based on Multi-Factor Combination (SGAMFC) is proposed. The algorithm processes course information, calculates user similarity, and gives a French learning path that matches user characteristics. The designed learning path modeling method provides the best performance in overall compared to similar modeling methods with 92.00%, 87.00%, and 87.00% precision, recall, and F1 values, respectively.
Timely detection and discovery of abnormal temperatures is the key to improving the service life of cables. In this paper, the thermal-force coupling field (temperature field and stress field) of cable joints is mathematically modeled to quantify cable energy changes. The infrared detection technology is used to measure the temperature of the cable and generate a thermogram to investigate the trend of the cable’s thermal state. The machine learning algorithm “Support Vector Machine” (SVM) and Sparrow Search Algorithm (SSA) are integrated to identify the local thermal characteristics of cables from three aspects: feature extraction, parameter optimization and pattern recognition. Simulation experiments are conducted to test the quality of the proposed detection technique. The results show that when the cable has localized thermal aging, the frequency response of the channel in this part are less than 0dB, which can not transmit the signal normally, and need to be maintained in time. The technology in this paper can realize the effective detection of cable thermal characteristics and reduce the risk of cable faults.
Improving the ability to deal with complex syntax and semantics is the key for English translation systems to move towards intelligence. In this paper, we incorporate a multimodal parallel fusion architecture into the design of the translation system, combining visual theme enhancement coding with detail fusion decoding to construct a cross-language-cross-modal semantic space. Semantic pre-tuning order training strategy and tree model syntactic encoding method are introduced to optimize the translation quality from source language to English. Experiments show that the BLEU values of this paper’s method on four datasets significantly outperform mainstream models. In the translation of long sentences with (35,45] and (45,80] word counts, the BLEU enhancement values are up to 2.51 and 2.67. The range of BLEU values of this paper’s method is enhanced to the range of 40-43 in the translation of complex sentences with syntactic and semantic structural adjustments.
Based on structural equation modeling, this paper explores the compound influence mechanism of English learning self-efficacy, learning environment and interpersonal relationship on college students’ English vocabulary learning effectiveness through path analysis. Stratified sampling method was used to collect 910 valid questionnaires from a university in S province, and research hypotheses were proposed. The correlations among multiple variables were exploratively analyzed through Pearson correlation analysis to construct structural equation modeling. The results showed that the standardized regression coefficients of self-efficacy, learning environment, and interpersonal relationship on the effect of English vocabulary learning were 0.813, 0.776, and 0.806.The selfefficacy dimension of self-efficacy had the highest factor loadings of self-efficacy for English vocabulary learning (0.889), and the learning environment dimension had a stronger factor loading of the school environment (0.838) in comparison to the family environment (0.706) and social environment ( 0.717) had stronger predictive power, and the path loadings of the interpersonal relationship dimension peer relationship (0.891) were significantly higher than teacher-student relationship (0.822) and parent-child relationship (0.786). The study verified the synergistic mechanism of self-efficacy, learning environment and interpersonal relationship, which provides the basis for multidimensional intervention strategies for college English vocabulary teaching.
This study developed a computer-assisted music therapy based on somatic vibrational music for the mental subhealth state of college students. Low-frequency signal waves were used for sonic intervention, and the sound source and amplification-crossover-transducer device were designed. Exploratory factor analysis was utilized to screen the emotional word items of the scale, and the scale was revised. Combining the biofeedback instrument with the revised PANAS-R scale, a multimodal assessment system was constructed. All subjects showed significant positive elevation (p<0.05) in the positive mood dimension after the experiment, and the trend of heart rate in the control group was roughly similar to that of the experimental group, but the magnitude of change was not as large as that of the experimental group. The results of the paired-samples t-test showed that the heart rate of the control group showed a significant decrease only in the acquisition stage 3 of the experiment, while the heart rate of the experimental group showed a significant decrease in the acquisition stages 3, 4, 5 and 6. The computer-assisted music therapy proposed in this paper can effectively alleviate the anxiety cycle, providing a technical path with both scientific and humanistic features for psychological intervention in the perspective of cultural education.
This study proposes a hybrid recommendation algorithm integrating LDA topic model and collaborative filtering, aiming to improve the accuracy and diversity of cultural and creative product recommendations in tourist cities by combining semantic analysis and user behavior modeling. The LDA topic model is utilized to extract implicit topics from user comments and product descriptions, determine the optimal number of topics through confusion and consistency indicators, and quantify the distribution of user interest preferences and product features. And combined with collaborative filtering algorithm, the user-topic association matrix is constructed, and the dynamic recommendation effect is optimized by time weight (based on Ebbinghaus forgetting curve) and distance weight (minimum diameter circle method). The experimental part validates the model performance on three datasets, Ctrip, VW Dianping and Yelp, and the RMSE of this paper’s model on Ctrip dataset is 0.804, MAE is 0.752 and R-squared is 0.876 which are all better than the baseline models Caser, SLi-Rec and HGN, and on VW Dianping dataset, the RMSE’s 0.791 and MAE of 0.732 also perform best, verifying its robustness. In addition, the correlation analysis of user behavior shows that the correlation coefficient of 0.946 for payment behavior and 0.913 for order placing behavior are highly correlated with interest preferences. This study effectively mitigates the data sparsity and coldstart problem through the dual-path recommendation strategy and cluster filling technique.
Uneven regional economic development is caused by factors such as resource endowment, geographic location, and policy preferences between regions, and is particularly evident within China. This paper discusses the application of the total revenue – total expenditure model and the theory of the multiplier effect of fiscal policy in the study of the relationship between high-quality regional economic development and fiscal policy. China is divided into four regions: east, west, central, and northeast, and a panel regression model is constructed on the basis of discussing differences in regional economic development levels. The model takes regional GDP as the explanatory variable, and general public budget expenditure and total fixed asset investment as the explanatory variables, while setting relevant control conditions. Person’s correlation analysis shows that all the variables show a significant correlation with each other at the 5% level. The Hausman test of the structural model for the four regions rejects the original hypothesis at the 1% significance level, accepting the model as a fixed-effects variable-intercept form. The overall fitting effect of the model is good, and it can clearly reveal the mechanism of the impact of macro-fiscal policy regulation on the economic development of different regions.
Enhancing the ability to analyze and process enterprise financial data is a key task in reducing enterprise resource consumption. This paper applies information technology in the collection and processing of financial data of resource-consuming enterprises. Combined with cluster analysis, the financial data are pre-processed by dimensionality reduction to obtain financial diagnostic indicators. Factor analysis is utilized to extract the common factors from the financial indicators, mine the financial risk influencing factors, and establish the factor analysis model. Apply the improved efficacy coefficient method to calculate the alarm value of enterprise financial risk and pay attention to the probability of occurrence of enterprise financial crisis. Combined with the results of financial risk analysis, we compare the effect of improving enterprise management ability and economic efficiency after taking targeted measures. The results show that: based on the financial sharing method of information technology, the resource-consuming enterprises have optimization effects of 51.61%, 43.90%, 56.63% and 69.01% in the four aspects of financial risk prediction accuracy, capital turnover rate, cost control deviation rate, and decision-making response time, respectively, and reach the goals of consumption decline and economic efficiency improvement.
The increasingly severe employment situation requires higher vocational colleges to optimize the means of talent cultivation. This paper collects enterprise recruitment data through web crawler technology as the research data base of cross-border compound music talent skill cultivation. Using the word frequency-inverse document frequency (TF-IDF) and Word2Vec word embedding model, the recruitment data are processed to retain the job keywords. Mining association rules between job recruitment data and skill requirements. According to the results of association rule mining, the optimization scheme of cross-border composite music talent cultivation in higher vocational colleges is proposed. The study shows that the 6 job categories that provide the most positions for crossborder composite talents require talents to master 2 or more skills. The 6 strong association rules for each of the 3 types of cities show that the probability of different recruiting positions requiring composite talents to master a certain type of skill ranges from 80% to 100%, which is a mandatory requirement and requires more attention from institutions and job seekers.
The development of artificial intelligence technology provides more paths for the improvement and development of teachers’ teaching ability. This paper takes young teachers in private applied colleges and universities as the research object. From the five perspectives of interdisciplinary teaching cognition, interdisciplinary theme design and integration, interdisciplinary activity organization and implementation, interdisciplinary teaching evaluation and reflection, and interdisciplinary teaching research, a set of evaluation index system for teaching ability of young teachers in colleges and universities with 19 secondary indexes is initially proposed. After two rounds of expert consultation, the index system was integrated and optimized, and the evaluation index system with 5 primary indicators and 14 secondary indicators was finally established. At the same time, the hierarchical analysis method was used to determine the subjective weights of the indicators, and the CRITIC method was used to complete the objective weights of the indicators. The subjective and objective weights of the indicators are calculated to get the comprehensive weights of the indicators. Particle swarm algorithm is adopted as the practical application method of the evaluation system of teaching ability of young teachers in colleges and universities, and the optimal weight value of the indicators is obtained through the characteristic particle swarm optimization search. In the scoring of teaching ability of teacher B, the root mean square error of particle swarm algorithm is 10.71%, the average absolute error is 15.32%, and the relative error is 12.63%, which is an excellent performance in practical application.
Under the large amount of distributed energy access, the operation state of the distribution system becomes more and more complex, and the traditional state sensing method is difficult to meet the demand for high precision. This paper aims to realize real-time state sensing and early warning of the new distribution system, calculates the equivalent electrical distance of nodes, and adopts the voltage-active power sensitivity to characterize the electrical distance between nodes, so as to closely connect the nodes in the region. On this basis, a Bayesian network is introduced to design a time series simulation method for distribution network components and system state respectively, so as to perceive the distribution network system state in real time. Integrating multiple sources of distribution information, including grid monitoring, user feedback and environmental detection, and constructing a fault indicator fusion information matrix, real-time monitoring and fault warning of the distribution network system state are realized. In the practical application of this method, the abnormal situation can be sensed in 2s and the warning response can be activated in 3s, which has high warning speed and response sensitivity.
The rapid development of sports training technology promotes the improvement of physical fitness of the sports population, but sports lower limb functional injuries inevitably occur. In order to realize effective lower limb rehabilitation, the recognition of rehabilitation posture for sports lower limb motor function injury becomes crucial. In this paper, we preprocess the sports lower limb movement action data through the method of error calibration and data normalization. The DeepConvLSTM neural network is proposed by combining convolutional neural network (CNN) and long short-term memory (LSTM) recurrent neural network, and the gesture recognition model based on DeepConvGRU neural network is constructed by integrating gated recurrent unit (GRU). The performance of the model on the lower limb motor function injury rehabilitation task is evaluated through experiments. The DeepConvGRU model in this paper achieved 96.83% and 99.11% accuracy on the UCISmartphone dataset and RehaLab-412 dataset, respectively, demonstrating good model performance.
In this paper, on the background of Internet of Things (IoT) technology, a three-level logistics network consisting of multiple suppliers, manufacturers, and distribution centers is established, and multiple decision-making problems of material collection, logistics generation, transportation modes, and transportation routes in the logistics network are solved by setting up a mixed-integer nonlinear planning model that minimizes the operation cost and carbon emission cost of the logistics network. After that, the optimization is carried out by max-min ant system and ant colony algorithm, so that the improved ant colony algorithm sets the solution equations of the specific model targeted to the specific problems. The results show that the algorithm in this paper can effectively optimize the logistics distribution problem, and its transportation distance is significantly reduced (6.38%) compared with the traditional ant colony algorithm, and the algorithm in this paper can solve the logistics path optimization problem faster, which controls the cost of transportation to a certain extent. Under the multiple conflicting objectives of simultaneously considering transportation cost, carbon emission and cargo loss rate, the government can increase the market share of railroad cold chain transportation by giving appropriate tariff subsidy policy or by increasing the travel speed of railroad cold chain liner. In enhancing the competitiveness of railroad cold chain logistics transportation, the tariff subsidy and the cold chain train can be substituted to a certain extent.
With the development of the new generation of digital technology, virtual reality technology has been widely used in the tourism industry, and at the same time, it also promotes tourists’ tourism culture experience and their cultural cognition of the tourist places. Based on the theory of embodied cognition and combined with virtual reality technology, the article explores the design method of tourism cultural immersion experience. Subsequently, a research design was conducted to select variable indicators of cultural cognition and cultural experience. By establishing a multiple linear regression model between the influencing factors of tourism cultural experience, the factors with the greatest influence on tourism cultural cognition are found. Through the correlation analysis, the article concluded that the linear regression equation of cultural cognition (Y) and the dimensions of tourism culture based on virtual reality technology is: Y=0.369Ty1+0.177Ty2+0.296Ty3+0.011Ty4+ 0.094Ty5+0.062Ty6+0.215Ty7. i.e., the ability of regional architecture to emphasize cultural characteristics has the greatest influence on tourists’ cultural cognition has the greatest impact.
In the Internet era, accurately establishing the propagation model of social network public opinion is of great help to the guidance and control of public opinion. Based on the social network information dissemination model and node identification algorithm, this paper organically combines the ant colony algorithm and simulated annealing algorithm, constructs the optimal path selection model for social network information dissemination, and designs a set of DAILY models for public crisis information dissemination adapted to the Internet information environment and technology, so as to realize the efficiency improvement of data flow. The accuracy of the model in this paper has obvious advantages compared with the traditional SIR model, and the model fitting curve is basically consistent with the real data curve, and its absolute error value and RMSE value are low. Meanwhile, the simulation results show that the proposed important node recognition algorithm has high accuracy and feasibility. Compared with the classical ant colony algorithm and Dijkstra’s algorithm, the model in this paper can disseminate a larger amount of information per unit time and has a higher accuracy rate, with the highest accuracy rate of 90.32% in the three groups of experiments, which is able to find the optimal path of information dissemination, and has an important guiding role in analyzing and guiding the corresponding public opinion.
With the explosive growth of information resources, recommender systems play a pivotal role in alleviating information overload and have been widely adopted in many services. This paper combines Bayesian personalized ranking method and graph convolutional neural network to construct an accurate recommendation model based on the dissemination of Marxist education information, and realize the multi-dimensional optimization of the recommendation path. Compared with several traditional collaborative filtering recommendation models, this paper’s model achieves better results in terms of RMSE, Precision, and coverage indicators, which verifies the effectiveness of this paper’s model in information dissemination recommendation. In addition, compared with other six recommendation models such as SVD, Social_MF and CUNE, this paper’s model is only slightly worse than the CUNE model in RMSE indexes, and is smaller than other models in RMSE and MAE indexes, with smaller prediction error and higher recommendation accuracy. It shows that the model in this paper can effectively mine the user’s interest preferences and the personalized characteristics of the items, and realize the multi-dimensional optimization of the precise path of Marxist education dissemination.
In the transformation process of traditional media to converged media, the labeling technology of modern Chinese language becomes more important, and the labeling of modern Chinese text is not only convenient for organizing and categorizing, but also can provide more accurate search and recommendation services for Internet users. In this paper, a global classification model for multi-labeled text is constructed by combining graph convolutional neural network, multi-head attention mechanism and BERT pre-training model, so as to realize the modeling of quantitative word constructions in modern Chinese. In the experimental datasets, the classification accuracies of the models after BiGRU and BERT are added to GCN are significantly improved, while the classification accuracy of the BERT+GCN model in this paper is better than that of the BiGRU+GCN model, which verifies the effectiveness of the text classification model in this paper. In addition, the classification effect of this paper’s method on four datasets is better than all other compared models, and it improves 1.31%, 0.98%, 1.44%, and 0.50% compared to BiHAM model on the four datasets of Ohsumed, MR, R52, and R8, respectively. The model application results show that both “length” and “length and short” can be collocated with quantifiers, there are some common collocation quantifiers between the two, and the collocation of the two quantifiers also exists two positions, but the former is more significant in this feature. This paper provides an analytical path for modeling quantity word constructions in modern Chinese.
With the increasing maturity of deep learning technology, human action recognition based on deep learning has received extensive attention from research scholars. In this paper, based on convolutional neural network and biomechanics theory, the recognition and characterization of musical instrument playing actions are studied. In terms of action recognition, this paper improves the GoogLeNet network structure and constructs a musical instrument playing action recognition model. On this basis, human biomechanical modeling research is carried out. The results show that the average recognition rate of the method proposed in this paper on the publicly available image dataset PPMI is relatively high, reaching 66%, which is better than other comparative methods, confirming the feasibility and effectiveness of the model application system for human action classification. The results of biomechanical modeling analysis show that the reasonable allocation of the time ratio affects the basic rhythm of the movement, and the adjustment of the rhythm of the center of gravity displacement and center of gravity velocity not only affects the basic rhythm of the whole musical instrument playing movement and the quality of the movement, but also the basic rhythm of the movement and the requirements of the movement constrains the allocation ratio of the center of gravity displacement and center of gravity velocity at each stage.
This paper first establishes a hierarchical employment and entrepreneurship quality coordinated development analysis system, through the use of time series ARIMA model and neural network LSTM model, respectively, for short-term prediction of college students’ employment and entrepreneurship market dynamics trends. In view of the prediction defects of a single model, this paper adopts the optimal weighted combination prediction method to optimize the combination of two single models, obtains the ARIMA-LSTM combination measurement model, and analyzes the application effect of the three models with actual cases. The results show that the relative errors of single models ARIMA and LSTM in predicting the employment and entrepreneurship of college students in the validation set are 9.52% and 10.13% respectively, and the R² is 83.0378 and 81.2749, which shows that the predictive effect of the models is general. The ARIMA-LSTM combination model is significantly better than the single model ARIMA and LSTM in terms of the accuracy and stability of the prediction of college students’ employment and entrepreneurship, at this time, the correlation indexes of the three models of ARIMA, LSTM and ARIMA-LSTM are 0.8064, 0.7959 and 0.9773, respectively, which can be seen that the combination model can effectively integrate the two single model s linear forecasting ability and nonlinear time series modeling advantages, thus improving the accuracy and reliability of the ARIMA-LSTM model in predicting the dynamics of college students’ employment and entrepreneurship market trends.
In this paper, we constructed a curriculum design ontology for grassland ecological study for the individual characteristics of learners, learning needs and the logical relationship between knowledge points, and extracted, fused and stored the knowledge mapping data of the discipline. After that, the structural relationship between knowledge points is explained, and the personalized learning path recommendation model is constructed based on the feature information of learners and learning resources in the learning path recommendation solving problem, with personalized learning path as the decision variable and based on the mapping relationship between learners and learning resources. Finally, the basic particle swarm optimization algorithm is improved from the perspectives of inertia weight and variation operator setting to solve the model. The MABPSO model has better convergence ability, stability and adaptability, and it can solve the personalized online learning resources recommendation problem better. In addition, the method in this paper utilizes the learner cognitive level function to calculate the learner’s mastery of the knowledge points, and then sets the generation rules of the learning paths, and finally generates the optimal learning paths and recommends them to the learners.
This study focuses on the evaluation of the effect of ecological education in the study activities of national parks, and through extensive literature research and actual research, an evaluation index system covering four dimensions of the curriculum system, safeguard conditions, teachers’ quality and students’ academic knowledge is determined. After determining the subjective and objective weights using the hierarchical analysis method (AHP) and the CRITIC weighting method, respectively, the ecological education effect assessment model was constructed by combining the results of the comprehensive weights derived from the two methods. Taking the ecological education teaching data of 20 colleges and universities in province A as input, the decision tree is constructed first, and then the random forest is constructed and the feature set of the students’ ecological education effect is obtained, so as to realize the accurate measurement and evaluation of the ecological education effect. The average absolute percentage error of the evaluation results based on the random forest model is 0.681%, which is 0.647% lower than that of the comparison model, and the absolute value of the relative error fluctuates within the range of [0.030%,2.274%]. It shows that the assessment model in this paper has good accuracy and stability, which helps to promote the high-quality development of research and study activities in national parks.
STEAM enables students to learn knowledge, apply knowledge, transfer knowledge and improve ability in the process of playing, and teaching aids become the most direct and explicit carrier of “playing”, which is an important tool for the implementation of teaching activities. In this regard, this paper designs STEAM teaching aids for science education and analyzes the effect of teaching aids based on the cognitive diagnostic model (CDM). By constructing cognitive attributes and their hierarchical relationships, developing and improving cognitive diagnostic test papers based on the Qc matrix theory, and diagnosing and analyzing the mastery of cognitive attributes of science education at the overall and individual levels based on students’ responses. After the quiz, 46.15% of the students basically mastered the knowledge points of science education with the help of STEAM teaching aids, and the remaining 53.85% of the students had deficiencies in mastering at least one of the cognitive attributes of science education. Based on the above analysis, it is convenient for teachers to carry out remedial teaching and personalized counseling, so as to improve the teaching effect of science education.
In order to clarify the stability of reservoir dams under the action of rainfall, flooding and other complex water flows, this paper takes the Shifosi channel-type reservoir as the basis, and establishes a finite element numerical analysis model of fluid-solid coupling by using SLOPE/W software. The basic unknown quantities such as infiltration line position, effective plastic strain and horizontal displacement of the reservoir dam are solved sequentially by the sequential solution method to simulate the mechanical behaviors of the reservoir dam under different water flows, so as to study the stability of the dam. The study shows that with the change from normal storage to flood, the water level of the reservoir dam body is increasing, the position of the internal dip line is elevated, the maximum plastic strain and horizontal displacement of the dam body increase, and the maximum values are all found at the foot of the dam location. The FOS for the three complex working conditions were 1.931, 1.864 and 1.842, respectively. This indicates that the stability of reservoir dams is, in descending order: normal storage > rainfall > flood.
City image is also the carrier and external manifestation of city culture. Based on the theory of city image communication and social media data, this study constructs the categories of city cultural image and symbol carrier. Taking X city as an example, combining the statistical analysis method and the theme extraction model constructed by TF-IDF, TextRank and LDA algorithm, we analyze the characteristics of the cultural image and symbol dynamics of X city, and further analyze the audience’s emotional tendency. The overall city cultural image of X city is positive, with the content of humanistic image and social image as the main content, and the content of humanistic image is mainly the historical attractions and traditional culture, which account for about one percent of the total. The humanistic image is mainly about historical attractions and traditional culture, accounting for 48.3% and 40.8% respectively, and the social civilization style accounts for 91.4% of the content of the social image. The symbols of the city are mainly landscape scenery and food, but lack original music and technological facility symbols. 45.6% of the audience conveyed positive emotions towards the city’s cultural image, while 30.2% and 17.6% of the audience conveyed neutral and negative emotions. We should continue to dig deeper into the city’s cultural symbols, create high-quality content, and utilize social media platforms to promote the construction and dissemination of the city’s cultural image.
With the transformation, upgrading and continuous development of China’s economy, the competition among enterprises is becoming more and more intense, and the financial risks they face are also increasing. Therefore, in order to ensure the sustainable and healthy development of enterprises, it is particularly important to strengthen the prediction of financial risk. This paper takes listed transportation enterprises as research samples, selects 13 indicators from 4 aspects, and reduces the dimensionality of financial indicators through factor analysis, and finally extracts 11 principal components for model fitting. Then the combined model SMOTE-Light GBM for financial prediction of medium enterprises is proposed, and the seed of random numbers is selected as 1326, and the model’s accuracy, precision, recall, f1_score, ROC curve, and AUC evaluation indexes are all over 95%, and the classification prediction effect is excellent. Operating profit margin, total asset turnover, total asset growth rate, operating income growth rate, and accounts receivable turnover have significant effects on corporate financial forecasting.
In order to effectively enhance the control effect of the electrical control platform, this paper proposes an intelligent electrical control platform based on wireless sensor network, in which the main circuit, control circuit and wireless communication unit are designed. Then from the H∞ control principle of distributed wide-area control technology and loop-forming control technology, the H∞ loop-forming control scheme and structure of the electrical control platform are designed. In order to verify the effectiveness of the method proposed in this paper, the H∞ control strategy and the performance of the electrical control platform are verified and analyzed. The results show that compared with the traditional PSS, the H∞ controller can significantly enhance the control performance of the electrical control platform, reduce the amount of overshooting, and improve the speed of the system to stabilize. The speed of the H∞ control strategy can be lower than about 150rad/min can be sustained at a higher current output, the speed of 480rad/min out of the vibration zone, the speed of 1000rad/min motor blocking, through the distributed domain control scheme, the motor is controlled by the distributed domain control scheme. The control effect of the electrical control platform can be significantly enhanced and the efficiency of the electrical control platform can be better ensured by distributed domain control and wireless sensor network.
In order to realize the integration of digital technology and traditional culture, and to explore the innovation path of digital art while carrying out cultural inheritance, this paper carries out computer-aided creation of Chinese paintings by means of computer-aided creation technology. Comprehensively utilizing the region growth algorithm, line drawing intelligent generation model and digital painting virtual pigment model and other computer-assisted methods for the creation of Chinese paintings, followed by objective and subjective evaluation of the creation effect. The model in this paper has the maximum values of recall, precision, mAP, PSNR, SSIM, and the minimum values of LPIPS and FID on both Scene and People datasets, and the optimal effect is obtained on both datasets. The Chinese paintings created by the method of this paper received an overall subjective evaluation of 4.34, with the scores of the primary indexes exceeding 4.25 and the scores of the secondary indexes not less than 4.15, and the viewers have a better view of the Chinese paintings created by the computer-aided creation method of this paper.
Among the various services of smart libraries, knowledge discovery services are becoming more and more popular among users. Knowledge discovery based on data mining supports users to obtain convenient resources, as a result, this paper optimizes the library knowledge discovery method, utilizes the DDGP reinforcement learning algorithm for enhancement learning, and proposes a dual experience pool structure and hierarchical experience playback mechanism to improve the DDPG algorithm, and realizes the library accurate recommendation model based on enhancement learning. Experiments are carried out on different datasets, and the results of each evaluation index of the improved DDPG algorithm in this paper are better than those of the comparison methods, with the hit rate and the cumulative gain of the normalized discount improved by 0.132~0.380 and 0.074~0.308 compared with that of the DDPG algorithm, and the superior performance of the accuracy, the recall and the F-value are also obtained under different recommendation numbers. Experiments show that the library precision recommendation method based on augmented learning in this paper has better resource recommendation accuracy and can provide users with more personalized knowledge discovery services.
With the rapid development of mobile Internet technology and social media software technology, it has an important impact on the dissemination of Japanese text information. In this paper, Japanese text is conventionally preprocessed, and the LDA topic model is selected to represent Japanese text, and then the feature extraction of Japanese text is accomplished with the help of the chi-square distribution, and the features are deployed into the plain Bayesian algorithm for classification. Taking this as an entry point, the Japanese text-user interaction is established by introducing the similarity degree, and the information diffusion model is formed with the support of conditional random field theory and feature function. Compared with the traditional method, the prediction effect of the Japanese text information dissemination path of the model in this paper is particularly outstanding, with the values of 0.7439, 0.7743, and 0.7758, which verifies the performance of the information diffusion model based on the conditional random field in the application of the information dissemination path of the Japanese text, and it has an optimizing effect on the current information dissemination path of the Japanese text.
The progress of education has made higher education workers realize the importance of educational reform, and the teaching of music performing arts has an important role in cultivating students’ music, performance and many other skills. In this paper, under the guidance of augmented reality key technology, the music performance scene image is calibrated in the pixel domain, and the image is further preprocessed using real-time human body keying principle based on HSV to meet the requirements of three-dimensional scene construction. Combined with the principle of three-dimensional reality fusion, double-sided camera and related software, the virtual scene of music performance is created. In view of the current situation of music performance teaching in colleges and universities, by integrating the music performance virtual scene into the traditional teaching mode, an interactive teaching mode based on augmented reality technology is designed, and the mode is verified and analyzed. After the intervention of the teaching mode in this paper, the teaching effect (P=0.005<0.05), participation (P=0.004<0.05), and positivity (P=0.008<0.05) show significant differences, while there is no significant difference in the traditional teaching mode, which indicates that the addition of the music performance virtual scene in the traditional teaching mode is more favorable to the improvement of the level of students' music performance.
With the increase of the number of decision variables in the optimization problem, the problem becomes more and more complex, and when the number of decision variables exceeds a certain value, it is called a largescale multi-objective optimization problem, and it is difficult for traditional algorithms to satisfy the user’s needs. To this end, the fuzzy clustering algorithm is first used to cluster the population particles, and the particle with the highest non-dominated rank is selected as the class globally optimal particle from each class by the non-dominated sorting method, and the class globally optimal solution is applied to the speed updating formula of the multi-objective particle swarm algorithm, which in turn completes the design of the multi-objective optimization problem solution strategy based on the fuzzy clustering-particle swarm combination algorithm, and carries out a Numerical simulation analysis. The IGD values of this paper’s algorithm for the test functions are higher than those of FDEA-II, which outperforms this paper’s algorithm only for three test functions, and the IGD values of RSEA (0.001) are better than those of this paper’s algorithm (0.0037) for MaF2 with M=5, which proves the practicality of the fuzzy clusteringparticle swarm combination algorithm based on fuzzy clustering-particle swarm combination algorithm for the solution strategy in the multi-objective optimization problem reference value.
Under the concept of OBE, the degree of achievement of talent cultivation objectives is the assessment basis for measuring the quality of talent cultivation. For this reason, this paper proposes a quantitative assessment scheme for reaching degree based on principal component analysis and fuzzy comprehensive evaluation method. Based on the existing information and the principles of evaluation index construction, the evaluation index system of this study is determined, and the weight values of the evaluation indexes are calculated using principal component analysis. On this basis, the fuzzy comprehensive evaluation method is used to construct an evaluation model of the degree of achievement of foreign language talent cultivation goals in applied colleges and universities, and the model is utilized to carry out instance assessment and analysis of a college or university. The weight values of A1 (language proficiency), A2 (cultural literacy), A3 (practical ability), and A4 (innovation ability) are 0.3512, 0.2921, 0.1826, and 0.1741, and the corresponding The affiliation matrix is [2.05056, 0.52224, 0.64093, 0.12281], and based on the principle of maximum affiliation, it is concluded that the degree of achievement of foreign language talent cultivation objectives of the university is at an excellent level.
In recent years, degradation of perennial permafrost has occurred against the background of a clear warming trend. Therefore, it is of great scientific significance to carry out research on permafrost changes and hydrological response under multi-year climate change conditions. Taking the Irtysh River Basin as the study area, this paper explores the connection between perennial permafrost changes and climate by taking multi-year meteorological data as the support and adopting SHAWDHM, a distributed hydrological model coupled with a permafrost module, to simulate the upstream sub-watersheds of the headwater area of the Irtysh River Basin. At the same time, we analyzed the permafrost hydrological change pattern of the upper watershed of the Irtysh River basin from 1968 to 2022, and simulated the year-by-year changes of soil infiltration, measured 20% annual precipitation, and the proportional relationship of the area of perennial permafrost to the total area of the watershed. The planar distribution of perennial permafrost degraded significantly from 1990 to 2022, and the newly added and degraded permafrost were located in the area where seasonal permafrost was in transition to perennial permafrost. The proportion of perennial permafrost area fluctuates above and below 35% from 1972 to 1996, and the change of soil infiltration obtained by simulation is mainly affected by the change of precipitation. And after 2008, with the increase of temperature, the soil hydraulic conductivity increases, and the soil infiltration volume rises rapidly when the increase of precipitation is not significant.
The application of digital projection technology provides new possibilities for the landscape light show to display the city brand image, and the combination of dynamic light show and three-dimensional modeling and other technologies has become an innovative direction for the design of light shows with urban characteristics. This paper analyzes the role of landscape light show in the development of urban aesthetics and the creation of urban cultural image, in the interpretation of the digital landscape, virtual landscape in the development of the role of urban cultural pulse construction, based on the design of the digital landscape production process about the light show. Analyze the beam energy distribution as well as the projection accuracy of the digital lighting landscape stereoscopic projection system designed in this paper. Select city permanent residents, tourists and other city light show perception evaluation survey, analyze the role of city light show in building the city brand image. After the public watched the city’s characteristic light show, the six aspects of the city’s overall image, city image promotion, economic image, residents’ image, cultural image, and governmental image were significantly different from the perceptual evaluation before watching, which indicates that the city light show can effectively enhance the city’s brand image, and it can be used as a way to promote the city’s brand image.
The purpose of this paper is to analyze the use of big data visualization technology in the audit project, combined with the importance of visual analysis technology in the audit project to explore and the advantages of visual analysis technology in the audit project. By drawing on the application of visual analytics in government auditing, the TF-IDF algorithm is used and improved to a keyword classification method based on the TF-IDF-MP algorithm, which extracts the core vocabulary in the text to be audited, clarifies the focus of the audit, and achieves the purpose of improving the efficiency of the auditor’s work. Compare the classification accuracy of the improved method with the common text classification methods in the public dataset. Take the internal audit of enterprises as an example to analyze the application of big data technology in the company’s sales business audit and expense audit. The purchasing volume of Z products in each month from January 2023 to September 2023 was screened using SQL statements. Predict the value of the company’s purchasing expenses expenditure for the following three quarters. Comparing the predicted values with the true values, the rate of difference is less than 4%, which concludes that there is no anomaly in the company’s expense spending.
Because the theory of dual prevention mechanism is put forward for a relatively short period of time and lacks the support of corresponding regulations and standards, it is still difficult to see the effectiveness of real and effective operation of dual prevention mechanism to prevent accidents in enterprises, and there are some professional and technical obstacles that have not been overcome. This paper shifts the focus of the establishment of the dual prevention mechanism to focus on safety risk control and develop corresponding emergency measures. The enterprise safety index system is established from the two parts of risk grading and control and hidden danger investigation and management. According to the definition of Bayesian formula network, determine the conditional probability of Bayesian network, and construct the safety risk assessment model based on Bayesian network. The risk reachable probability of the model constructed in this paper indicates that after a security event occurs in the S9 indicator, the reachable probability of each indicator in the experimental network shows an upward trend, and the overall security risk is rising, and at this time, the a posteriori reachable probability of S1, S4, and S6 is significantly higher than that of the other indicators, which is 0.85, 0.78, and 0.76, respectively, and it is very likely that there is a security risk in these three indicators. Comparing the a priori reachable probabilities of the indicator nodes given by the three methods, the a posteriori reachable probabilities of the indicator nodes of this paper’s method for S5, S7, and S8 are 0.46, 0.32, and 0.14, respectively, and there is no underestimation of the real security risk.
As a key link to improve the performance of tasks such as semantic understanding and machine translation, the study of Chinese syntactic structure classification helps to promote the rapid development of natural language processing technology. In this study, the Glove pre-trained word vector model is used to vectorize the Chinese vocabulary, and the semantic associations between words are modeled by contextual information. Then the BiLSTM model is combined to extract the global syntactic features of sentences, while the multi-head selfattention mechanism is introduced to improve the interpretability of the model. The graph convolutional network layer is further designed to obtain the syntactic structure classification probability through the softmax function. The syntactic structure classification precision, recall, and F1 score of the CSSLSTM model on the CTB5 dataset are 0.951, 0.947, and 0.949, respectively, which are much higher than the comparison methods. When the HEAD number of the model’s multi-head attention mechanism is 4, the model’s classification performance achieves the best results on both CTB5 and CTB7 datasets. The confusion matrix of syntactic structure classification shows that the model has an accuracy of more than 0.92 for the syntactic structures of “subject-verb”, “subject-verb-object”, “linked sentence”, “put word sentence”, “subject word sentence”, “compared sentence”, “existing sentence” and “concurrent sentence”, and the average accuracy of syntactic structure classification in CTB5 and CTB7 datasets is 0.941 and 0.944, respectively, and the classification effect is better.
In the field of industrial process control in recent years, fault diagnosis technology has just become a very important and popular research direction. By installing sensors in the permanent magnet fast ring cabinet to collect multi-source data, and using data cleaning and standardization techniques, a fault detection and diagnosis method combining Bayesian inference MCMC and DPMM is proposed. The Bayesian inference MCMC method is the core of this fault correction technique, which is analyzed by comparing the differences between the observed data and various types of fault data. The results show that the CDC and RBC methods do not have the ability to track the fault propagation process, while the method proposed in this paper is able to analyze the different fault variables in the propagation process of faults, which verifies the robustness and practicability of this paper’s method from multiple perspectives.
The permanent magnet switch structure plays a crucial role in enhancing the efficient operation of permanent magnet linear motors. Based on this, this paper constructs a finite element simulation model of the permanent magnet switch structure based on the working principle of the permanent magnet switch, on the basis of analyzing the stray parameter and magnetic circuit model of the permanent magnet switch, and combining with Infolytica MagNet simulation software. Then from the multi-objective optimization problem of the permanent magnet switch structure, the multi-objective optimization model of the permanent magnet switch is established based on the optimization objectives and constraints. The genetic algorithm is introduced to optimize the parameters of the simulated annealing algorithm, and the multi-objective optimization model of permanent magnet switch is solved by GA-SA algorithm. Simulation shows that the GA-SA algorithm is relatively efficient, and the sinusoidal distortion rates of the cogging torque and the no-load air-gap magnetic density waveform are 0.32N-m and 21.75%, respectively, after solving the multi-objective optimization model. The optimized permanent magnet switch opening speed and opening coil energy conversion rate are increased by 21.92% and 20.80%, respectively. In conclusion, the permanent magnet switch design obtained by the multi-objective optimization algorithm meets the requirements of the permanent magnet linear motor and can significantly enhance the operating efficiency of the permanent magnet linear motor.
In space vehicles, inertial navigation devices need to measure real-time and high-precision analog quantities such as currents and voltages output from accelerometers and other sensors in order to realize the navigation of the vehicle. Therefore, it is of great significance to develop a dynamic high-precision current and voltage measurement system suitable for use in spacecraft. The study firstly designs a current error monitoring system, and then introduces the main factors affecting the measurement accuracy of a standard power meter and explores the principle of current measurement error generation. Then, a compensation strategy for segmental integration of the d-axis current into the measured current is proposed. The simulation and experimental results show that the current monitoring system can effectively eliminate the interference of the outer-loop controller and significantly improve the control performance of the error compensator, and the compensation algorithm proposed in this paper can effectively reduce the measurement error of the measured sub-current and improve the steady state and dynamic performance of the machine speed control system.
This study proposes a multilevel modeling framework that integrates Bayesian inference, genetic algorithm optimization and dynamic temporal regularization DTW, aiming at high-precision collaborative matching of music and dance rhythms. By constructing a dynamic bar-pointer model, the bar line position and tempo of the music rhythm are taken as hidden state variables, and a posteriori density estimation is combined with a sequential Monte Carlo method to realize robust music rhythm extraction. For the dance movement system, a feature optimization framework based on genetic algorithm is proposed to filter the optimal music-dance movement matching combinations through the fitness function and quantify the rhythm synchronization by combining with the DTW algorithm. Experimental validation shows that the beat tracking algorithm based on Bayesian theory performs well in music cycle extraction, with cycle peaks stabilized in the interval from -0.8 to 1, with beat division. The correlation coefficient between music and dance movement features reaches 0.827, and the matching accuracy reaches 84.52% at 20 feature pairs. The beat points of the synthesized dance highly overlapped with the music, and the intensity distribution trend was consistent. This study not only provides a quantifiable analysis tool for musicdance co-creation, but also lays a theoretical foundation for cross-modal interaction technology in virtual reality and intelligent choreography.
The spatial distribution characteristics of immune cells in the lung cancer microenvironment profoundly affect tumor progression and immunotherapy efficacy. In this paper, we integrate physical simulation and statistical modeling to systematically investigate the dynamic interactions and spatial distribution of immune cells in the tumor microenvironment of non-small cell lung cancer (NSCLC). A system of partial differential equations (PDEs) was constructed based on statistical methods to simulate the formation mechanism of the immunosuppressive microenvironment during tumor growth. The cell kinetic behavior in non-equilibrium state was portrayed by ODE kinetic model to reveal the characteristics of spatial distribution of immune cells. Flow cytometry and spatial parameter analysis of clinical samples were combined to quantify the spatial distribution pattern of M2 macrophages and IL-10⁺NK cells. It was found that the mean density, mean minimum proximity distance, and effective percentage of CD68+ TAMS were significantly higher than those of CD163+ TAMS and IRF8+ TAMs in the subpopulations of patient TAMs (CD68⁺, CD163⁺, and IRF8⁺), and that M2 macrophages and IL-10⁺NK cells differed in their proportions and functional inhibitory status in different tissues.
Due to its characteristics of carrying passengers and vehicles, the passenger-roller ship needs to consider the safety performance and economic cost comprehensively. In this paper, ballast water is introduced as an indicator of economic cost when constructing the integer planning model of electric vehicle pre-allocation scheme for passenger-roller ships. At the same time, vehicle safety constraints and ship safety constraints are combined as safety performance indicators. The integrated cabin utilization rate and lateral overturning moment are modeled to balance the cabin loading capacity and stability. Combined with the pheromone attenuation mechanism of ant colony algorithm, the optimal computational solution of the loading scheme is carried out to maximize the benefits and minimize the risks of EV transportation on both passenger and ro-ro ships. The results show that the ant colony algorithm can achieve stable and fast convergence and the objective function value is smaller than the comparison algorithm when setting the information heuristic factor α, the expectation heuristic factor β, and the number of ants to 1.2, 2.0, and 65, respectively. In the 15 different scenarios of EV allocation schemes for passenger and rollon/roll-off vessels based on the ant colony algorithm, the ship area utilization rate is more than 95%, and at the same time, the standard deviation is less than 0.005.
The risk assessment of the camp facilities agency in the highland alpine area is a complex systematic project, and its specificity lies in the superimposed effect of the extreme natural environment and complex management needs. For this reason, this study proposes to combine the fuzzy hierarchical analysis method FAHP with the risk identification technology to construct a risk assessment model applicable to this region. Four core risks and 12 sub-risks, including natural environment, logistics, personnel health and technology management, were systematically identified through brainstorming, and the weights of each index were quantified based on FAHP. The experimental results show that the logistic support risk with a weight of 0.334, and the natural environment risk with a weight of 0.262 are the core challenges, of which the material transportation disruption C4 with a weight of 0.124, the extreme climate impact C1 with a weight of 0.163 and the plateau reaction health problem C7 with a weight of 0.071 are the key sub-risks. The fuzzy comprehensive evaluation further indicated that C7, C8 low-temperature exposure health problems and C11 insufficient equipment adaptability have the highest risk level and need to be prioritized for prevention and control. The point degree centrality analysis reveals the strong conductivity of nodes such as C4 and C7, which validates the dynamic risk network characteristics of the model.
This paper combines the questionnaire survey data to construct an evaluation system of digital teaching competence of information technology teachers that contains 5 primary indicators and 25 secondary indicators. Six male factors are extracted from it to construct the digital teaching competence influence model, and relevant hypothesis testing is carried out to find the degree of influence of each factor on teachers’ digital teaching competence. Through the necessity condition test and qualitative comparative analysis, each combination of factors is mined to explain the level. Based on the quantitative calculation results, the strategies for improving digital teaching competence of IT teachers are proposed. The results showed that there were eight hypothesized P0.05 for the internal variables, indicating that most of the influential factors significantly affect the level of teachers’ digital competence. The p-value of the difference between the path coefficients of gender and age is less than 0.001, which is significantly related to teacher competence. The overall consistency of the five grouped paths is about 0.897, the overall coverage is about 0.807, and the model has a strong ability to explain teachers’ digital teaching competence.
Training of substation trainees using virtual platforms is one of the priorities to realize cost reduction and efficiency. This paper designs an intelligent substation virtual training system containing six modules such as instructor machine to enhance the visualization level of intelligent virtual training. The use of VR technology and other collection of substation power equipment related information, complete the substation actual layout scene modeling, and incorporate a sense of reality in the fault judgment link. Combine with virtual reality engine technology to complete the resource control management of the virtual training platform, and improve the development and design of the platform’s practical training scenes. After completing the validity verification, the platform is applied to the training of substation trainees, and its value of use is analyzed in the light of the training results. The results show that the error between the simulation value of relay protection current/voltage and the sampling value of the platform is only 0.7%, 0.5%, 0.2%, 0.9%, which is relatively small. 22-36 years old training trainees, the younger female trainees are more active in the problem feedback. Female trainees had a maximum of 2.4% over male trainees in homework completion and a maximum of 0.47 over O&M theory exam scores.
Physical fitness quality, as the core quality of college students in public security colleges and universities, and its correlation with college students’ vocational ability has gradually become a research hotspot in related fields in recent years. This paper identifies and judges college students’ physical training actions by designing classifiers. At the same time, the gray correlation analysis method is used to analyze and construct the relationship model between physical fitness training and vocational ability of college students in public security colleges. By reflecting the relationship between physical training and occupational ability, it provides effective data reference and target guidance for the optimization and improvement of physical training programs. The design of the classifier is based on the identification process of physical training movements of college students in public security colleges, and adopts the Support Vector Machine algorithm (SVM) as the classification method of physical training movements and behaviors. Finally, the ant colony algorithm is introduced to optimize the kernel function of SVM algorithm to improve the classification accuracy and establish the physical training action classifier based on SVM. In the analysis experiment with a total of 154 college students from a public security university, the occupational ability performance scores of the students in the low level group improved up to 8.44 points compared with the pre-training scores after targeted physical fitness training.
This study takes digital modeling technology as the core and explores its application in the innovative design of traditional ethnic clothing. By integrating particle dynamics model, triangular mesh delineation algorithm and dynamic feature point co-tracking technology, three major modules of fiber fabric simulation, garment-human body motion co-tracking and immersive virtual interaction system are constructed. Experimental validation shows that the fabric simulation method based on 3D mesh convolution outperforms the traditional physical simulation and deep learning model in terms of Hausdorff distance error (2.381 mm for flag, 5.318 mm for teapot, 5.343 mm for hanging cloth) and time consumption (3.62 s for flag, 2.84 s for teapot, 3.31 s for hanging cloth), and the efficiency of vertex extraction is improved by 40.5%, which significantly reduces the computational cost. Factor analysis further extracted the three core evaluation factors of “fabric characteristics”, “sample structure” and “dynamic effect” (cumulative variance contribution rate of 90.17%). The results of subjective evaluation by users show that the page layout (4.35~4.88 ratings by ordinary users and 4.78~4.94 ratings by administrators) and the comprehensiveness of functions (4.27~4.84 ratings by ordinary users and 4.57~4.88 ratings by administrators) of the virtual interactive display system are highly recognized. The research results provide highly efficient technical support for the digital heritage and innovative design of ethnic costumes, with both theoretical and applied values.
As a key pressure-bearing equipment, the degree of fatigue failure of natural gas pressure vessel affects the operational safety. Based on finite element stress analysis and Kwofie-Zhu model, this paper establishes an equivalent driving force model considering crack closure effect. Combined with the Johnson-Cook thermoviscoplastic constitutive equation and the fluid-solid coupling algorithm, the numerical analysis model of explosion crack extension is constructed. The correlation of stress ratio (R) to fatigue threshold (ΔKth) and the effect of yield strength on crack extension rate are revealed through multi-scale modeling analysis. The results showed that ΔKth decreased from 7.32MPa·m1/2 to 5.45MPa·m1/2 when R was increased from 0.05 to 0.35. The crack extension rate increased from 10-9cm/s to 10-8cm/s when the yield strength was increased from 282 MPa to 582 MPa. The multiscale modeling analysis reveals that R has a negative correlation with ΔKth, and the yield strength varies positively with the crack extension rate.
Paying attention to the changing situation of college students’ emotional state is the basis for orderly psychological intervention. This paper constructs a three-stage abnormal behavior detection model for college students, which includes target detection, multi-target tracking and abnormal behavior detection. The YOLOv5s detection module, which is small in size and fast in operation, is selected to detect students’ behavioral and emotional information on the premise of ensuring the completeness of feature information extraction. Based on the deflationary dot product self-attention method, continuous emotion inference of students under multimodal fusion is realized. Combined with the emotion recognition reasoning results, psychological intervention for abnormal students is carried out. The results found that the area of ROC curve reaches 0.9, and the effect of behavioral-emotional recognition is good. The average accuracy of the model’s emotional reasoning for five subjects was 99.54%, and it had a fast running speed and fine emotional classification effect. The scores of the 4 scales before and after the psychological intervention of abnormal students were P<0.01, and the mental health level was effectively improved after the intervention.
The design of Spring Festival Gala mascot integrates the national spirit and other connotations, and has significant cultural symbolism. This paper integrates the cultural elements of the Spring Festival Gala mascot with multi-source heterogeneous data through co-word analysis and knowledge mapping technology, and establishes a cultural resource association network. Introducing the theory of GIS field model, the paper proposes the spatiotemporal dynamic expression method of intangible cultural field and quantitatively analyzes its propagation intensity and scope. Based on the multimodal data, the cultural communication study of the Spring Festival Gala mascot is conducted. The results show that the skewness of the questionnaire sample data is less than 3, and the peak value is less than 10. Meanwhile, the AVE square root of the five variables is greater than the correlation coefficient between variables, and the data quality is good. The communication model is constructed by combining the sample data, and with P < 0.01, all five variables positively and significantly affect the cultural communication effect of the Spring Festival Gala mascot.
Short-term prediction of meteorological data needs to extract effective information from complex timeseries features, which centers on improving data quality through preprocessing, constructing prediction models adapted to seasonal variations, and optimizing fuzzy delineation of data distributions in order to improve prediction accuracy. Based on the hour-by-hour meteorological data of an international airport in China, this study proposes a time series analysis framework that integrates data cleaning, normalization, seasonal ARIMA modeling, and cumulative distribution domain delineation, aiming to improve the accuracy of short-term meteorological forecasts. For the missing values and outliers in the raw data, the segmented linear interpolation and truncation strategies are used to reconstruct the features, and the seasonal segmentation strategies of cold, hot, and transitional seasons are combined to enhance the data integrity. The min-max normalization is used to eliminate the differences in the magnitudes of multiple sources of meteorological elements, and a seasonal ARIMA product model is constructed to capture the cyclical fluctuation pattern of the temperature data. The cumulative probability distribution method is further introduced to divide the thesis domain, and the temperature data are mapped into interpretable fuzzy intervals to optimize the model’s ability to express uncertainty. The experimental results show that the method in this paper significantly outperforms the traditional RNN and LSTM models in the wind speed and temperature prediction task, in which the MAE, MSE, and MAPE of the daily maximum temperature prediction are reduced to 0.0554, 0.00604, and 20.13%, respectively, which verifies the model’s utility in complex meteorological time-series features.
With the intensification of energy transition and power system complexity, forecasting and assessing the power supply capacity of the grid has become the key to guaranteeing the dynamic balance between supply and demand. In this paper, a computational modeling and assessment framework for power supply capacity integrating multi-scenario analysis is proposed with City C as the research object. A data preprocessing model based on feature iteration is constructed to improve the efficiency of supply chain data de-weighting through density clustering and dynamic iterative optimization. Establish a multi-scenario analysis model for power supply to quantify the impact of different policies and technology paths on the balance of power supply and demand. Combining LEAP model and nonlinear optimization method, we forecast the evolution of power demand and supply structure in City C from 2025 to 2030. The empirical results show that the overall trend is consistently the highest probability density in the M2 range, indicating that the forecast error is concentrated in the [-1%,0.5%) range, and the Markov-corrected electricity consumption of the whole society is projected to be in the range of 940.6 billion to 1243.5 billion kWh. Without the implementation of demand-side management measures, the peak-to-valley difference in electricity load is significant, and the power supply curve after the implementation of demand-side response demonstrates significant structural optimization. To achieve the balance of electricity supply and demand in City C, the synergy and cooperation of both the power supply side and the demand side are required.
This paper takes the multi-energy microgrid, an important part of the grid regulation capability, as the entry point, and designs the energy input model and the energy interaction model successively based on the storage mode of the multi-energy microgrid supply. The two models are used to analyze the energy conversion and input-output relationship between energy sources, and to establish a multi-energy microgrid power regulation model. Subsequently, the inertia change rate index is proposed to analyze and extract the time-varying characteristics of the inertia of the new energy grid system as a method to judge the trend of the inertia level change of the grid system. At the same time, considering that the grid system needs to consume the adjustable resource participation capacity to deal with internal operation problems, the evaluation method of external participation capacity is built by partitioning the grid into networks. Combining the above, an assessment method of the supply and demand risk adjustment capacity of the provincial grid system with high proportion of new energy is formed. The method is used to analyze the regulating ability of energy storage units in the grid system, and further proposes four indicators for assessing the potential regulating ability of the grid system: outputable power (Eout), inputable power (Ein), maximum abandoned power (Eg), and maximum load shedding power (EL). Based on the four assessment indexes, the assessment method in this paper calculates the difference between the theoretically calculated value of the outputable power (Eout) and the inputable power (Ein) and the simulation results are less than or equal to 0.00 as a negative value in simulation experiments, which verifies that the theoretical value is that the microgrid can be ensured to provide or absorb power to the outside world in the next cycle.
Due to the lack of control and technology in the development and construction of new power systems, the current construction of transmission and substation projects in certain regions still have environmental risks that cannot be ignored. Based on the characteristics of the power grid, this paper proposes eight power environmental assessment indicators. On the basis of the definition of the indicators, the calculation method of the indicators and the scoring are designed. At the same time, BIM technology and BP neural network algorithm are integrated to design the processing method of transmission and substation engineering data. Based on the Bayesian network algorithm, the steps of environmental risk assessment during the construction period of transmission and substation projects are explained, so as to establish the environmental risk assessment model. The expert scoring method and principal component analysis are adopted as the practical application methods of the assessment model, so as to realize the dynamic perception of environmental protection risk during the construction period of transmission and substation projects. The environmental risk assessment model constructed has a good consistency in assessing the probability of occurrence of risks at different stages of the construction period as 85.7%, 79.9%, and 89.7%, respectively, and the model is able to perceive the environmental risks of transmission and substation projects during the construction period more accurately.
This paper proposes a comprehensive electromagnetic-noise optimization design method based on the forgotten least squares method for the electromagnetic performance and vibration-noise synergistic optimization problems faced by Fe-based soft magnetic composite core reactors in high frequency applications. The nonlinear magnetization model of the core material is constructed through experiments, and the magnetic-mechanical coupling kinetic equations are established by combining Maxwell’s system of equations and mechanical vibration theory. The least squares method incorporating the forgetting factor is used to identify the parameters of the twoinertia mechanical system, and adaptive filtering is realized with the help of parameter sensitivity analysis. Simulation experimental results show that the sound insulation using the scheme of this paper can be up to 14.6dB(A), and the total sound pressure level of measurement points B and C at 1m outside the reactor cabinet after optimization is reduced by 10.2dB(A) and 11.5dB(A) respectively compared with the pre-optimization period, and its comprehensive noise reduction effect reaches more than 10.9dB(A), while the temperature rise is controlled within a reasonable range, which verifies the validity of the methodology and the applicability of engineering.
As a key equipment in the power system, the noise problem of dry-type iron core reactor directly affects the stability of equipment operation and the user’s environmental experience. Based on the multi-physical field coupling theory, this study analyzes the vibration noise formation mechanism and optimization control method of Fe-based soft magnetic composite core reactor by combining COMSOL simulation and experimental test. The contributions of Maxwell force and magnetostrictive effect to the vibration of the core are quantified by coupled electromagnetic-mechanical-acoustic field modeling. The results show that the maximum vibration displacement induced by Maxwell force is 3.81×10-5 m, which is much higher than that of magnetostrictive force of 3.56×10-8 m. Aiming at the insensitivity of air-gap structural parameter, the topology optimization algorithm of electromagneticmechanical-acoustic field coupling is proposed, which reduces the vibration displacement of the Fe-based soft magnetic reactor by 90.19% from 9.41×10-7 m to 9.23×10-8 m. After the optimization, the vibration noise formation and control method of the Fe-based soft magnetic reactor are optimized. The optimized Fe-based soft magnetic reactor has a high voltage noise of 45.71 dB(A) and a sound power value of 58.93 dB(A), which are 31.9% and 28.7% lower than that of the conventional silicon steel reactor, respectively.
There is a disconnect between mental health intervention and value guidance in modern ideological and political education of college students, for this reason, this paper proposes a big data-driven mental health assessment model for college students. It constructs the college students’ mental health assessment index system, defines the text similarity calculation model and weight allocation rules. Optimize the search process of FCM clustering center based on the firefly algorithm to avoid the local optimal problem of the traditional algorithm. Taking 5000 students in a university as the research object, relying on expert assessment to determine the weights of indicators. The effectiveness of this paper’s algorithm is tested through controlled experiments, and the characteristics of different psychological state levels are analyzed with the help of clustering results. The clustering effect of the FCM-FA algorithm proposed in this paper has obvious advantages compared with the FCM algorithm and the Grid_PFcm algorithm, with short time-consuming and smooth movement, and the time is controlled within 0.1s. The difference between the career impact dimension scores of different mental health status groups is small, and the difference in the emotion regulation dimension is the largest, i.e., students with lower scores in the emotion regulation dimension are more likely to be categorized as “poor” or “bad”. The application of fuzzy cluster analysis in the analysis of college students’ mental health can help colleges and universities to carry out early prevention of college students and formulate corresponding strategies for the intervention of psychological disorders.
The quality of cross-cultural marketing is related to the prospect of business development. This paper analyzes the challenges encountered by international companies in cross-cultural marketing. A two-stage feature selection algorithm based on information gain and Pearson’s correlation coefficient (IG-PPMCC-PCA) is proposed to optimize sales feature dimensions in combination with principal component analysis. A causal inference-driven gain model is constructed to predict the incremental user transaction willingness under marketing intervention. The results show that the gain model in this paper performs well in dataset training, with a mean square error of 78.6460, an absolute error of 1.51%, and AUUC and Qini reaching 0.8365 and 0.1295, which are better than the other five comparison models. Under the cost constraints, the model in this paper reaches the user group bringing 8.34% more than randomly selecting users. The intelligent marketing gain model that integrates feature selection and causal inference can significantly improve the accuracy and cost-effectiveness of cross-cultural marketing decisions.
For the current demand of personalized and intelligent construction of Civic and Political Education in colleges and universities, this paper takes the integration of digital Civic and Political Education resources as the research goal. The hardware framework of the Civic and Political Resource System containing five core components is designed, and under the framework, the application of cloud computing technology in Civic and Political Education is sorted out. The improved PBFT consensus algorithm is selected to optimize the time delay of the Civic and Political Resource System, increase the throughput and the communication capacity, and thus improve the consensus efficiency of the system’s Civic and Political Resources within the education alliance. For the data security problem during resource transmission, proxy re-encryption technology is adopted to guarantee the safe storage and access of digital resources of Civic and Political Education. Finally, the Civic and political resources system based on the improved PBFT consensus algorithm is built. Under the number of 4000 concurrent users, the TPS of uploading and downloading of Civic and political resources of this system reaches 268 entries/s and 382 entries/s respectively, which has good load capacity and shows excellent stability performance.
This paper takes CDGAN as the core technology framework, combines the data-user collaboration model with the reconstruction of the curriculum resource system, and explores the collaborative innovation path of visual communication design and interaction design education in the intelligent era. By introducing DO-Conv and CA, we optimize the number of parameters and feature extraction ability of CycleGAN image generation model, and realize the significant improvement in detail performance and semantic consistency of the generated images. Compared with the original model CycleGAN, the Loss value of CDGAN model is reduced by 0.016, the BLEU score is improved by 5.9%, and the performance is optimal in both FID and 1-NNA in both category and company datasets. The CDGAN model image clarity, vividness, and harmony index scores are 3.297, 3.286, and 3.278, respectively, which all have significant advantages over other methods. In the teaching experiment, there is a significant difference between the pre-test data and post-test data of the experimental group in the three dimensions of design thinking, such as variability, uniqueness and delicacy, and the cultivation of design thinking ability (P<0.05), and the post-test scores of each dimension are about 2 points higher than the pre-test scores, and the design thinking ability reaches 87.42±4.286 points. This paper constructs a technology-enabled teaching model to provide theoretical basis and practical reference for the transformation of visual communication design education.
With the acceleration of globalization, the importance of business English writing in cross-cultural communication is becoming more and more prominent. This study proposes an automated assistance platform for English business writing based on grammatical analysis algorithms, which deeply integrates the RST-Style discourse parser improved by the Conditional Random Field CRF with the GloVe global semantic word vector model to solve the deficiencies of traditional methods in long-distance dependency and lexical semantic association, and introduces a sequence-to-sequence error correction model based on the replication mechanism combined with the BERT pre-training language model to optimize the semantic representation and error correction efficiency. Through multi-dimensional experimental validation, the model has an average absolute error MAE of 2.071 and a Pearson’s correlation coefficient PCC of 0.702 in the lexical articulation diagnosis task.The pairwise accuracy PRA for logical coherence diagnosis on the Accident and Earthquake datasets are 96.57% and 97.98%, respectively. The F1 value for the grammatical error detection task reaches 69.84%, which is significantly better than the baseline model. The teaching application experiments show that the mean of the total posttest score of the experimental group using the platform improves to 90.41 (58.87 on the pre-test), and the subdimensions of lexical articulation and grammatical accuracy are close to full scores of 23.16 and 24.01, respectively, and the standard deviation is significantly narrowed, which confirms the practical value of the platform in improving writing ability and teaching efficiency.
This study focuses on the innovative application of artificial intelligence technology and teaching transformation in English education in colleges and universities, constructs a three-level theoretical framework (student model, teacher model, domain model) for intelligent computer-assisted instruction ICAI system, and explores the data-driven teaching optimization path by combining the time-series clustering and decision tree algorithms. Based on the real data from the intelligent teaching platform of a university, the study clusters students’ learning behaviors through the time-series k-means algorithm KmL, identifies four types of differentiated learning groups, efficient learners (N=625), task-oriented (N=3011), passive participants (N=4276), and passive groups (N=247), and reveals their behavioral characteristics in resource use, interactive participation, and other 10 behavioral characteristics in the dimensions of resource use, interaction participation, etc. The decision tree algorithm was further utilized to mine the academic performance association rules, and found that classroom mastery, listening time and vocabulary were the core factors affecting the performance, such as the Rule 1 confidence level of 61.23%. The study shows that the data-driven ICAI system can realize the dynamic adaptation of teaching strategies, provide technical support for personalized teaching and precise intervention, and promote the transformation of English education in colleges and universities to intelligence and refinement.
This paper focuses on the field of corporate profitability prediction, and innovatively constructs an analytical framework integrating financial ratios and logistic regression. Through factor analysis, 11 financial ratios are downgraded to construct a four-dimensional core index system of profitability factor, debt service factor, operation factor and growth factor. Combined with the logistic regression model to establish a dynamic prediction mechanism to realize the prediction of corporate profitability. Taking the quarterly data of 2023-2024 of 20 listed enterprises in City A as samples, the results of factor analysis show that the comprehensive score of A5’s profitability ranks the first with 2.274 points, which is much higher than A6’s score of 1.383 points, and it is the best performance among the 20 enterprises. Enterprises with positive composite scores include A5, A6, A10, A4, A13, A15, and A20.The model’s predicted F-value for A5 enterprises from 2023 to 2024 has a small gap with the actual value, which is within 0.03, and the correlation is greater than 95%. Based on the prediction results, the profitability of A5 enterprises will be improved in 2025, and the four quarterly profitability composite scores are 2.233, 2.488, 2.321, and 2.289 scores, respectively.
The rational allocation of marketing resources is the focus of enterprises to increase economic returns. In this paper, we use maximum-minimum, zero-mean and fractional calibration normalization to normalize the enterprise customer data preprocessing and improve the clustering generalization performance. Customers with different characteristics are clustered by K-means algorithm to mine the marketing concerns of similar customers. Combine with the multi-item benefit evaluation formula to calculate the user fitness score and obtain the maximized marketing benefit. Construct the marketing resource model based on information entropy to quantify the marketing resource allocation system loss in order to select the optimal decision variables. The omni-channel marketing resource allocation optimization process of cultural and creative e-commerce stores is exemplified to analyze the effect of this paper’s method. The results show that the best classification effect is obtained by clustering customers into six classes and analyzing their corresponding characteristics. After performing the marketing resource optimization, the final product price decreases to RMB 36 per piece, the total sales volume increases to 150*104 pieces, the market share increases to 40%, and the profit improves to 16.1%.
As an important carrier of Chinese culture, the inheritance and innovation of non-heritage music faces multiple challenges in the digital era. Using big data analysis and complex network communication dynamics as the core tools, this paper explores the digital communication paths and educational practice strategies of non-heritage music by constructing an information cascade model in social networks. The study first starts from the practical significance of integrating non-heritage music into college education, and clarifies its communication value in cultural heritage and youth groups. It also combines node cascade feature modeling, including temporal relationship and preference similarity analysis and complex network propagation dynamics model (SI, SIS, SIR and threshold model), to quantify the propagation law and diffusion threshold of non-heritage music content in social networks. Based on the empirical data of Weibo and Tik Tok platforms, Monte Carlo simulation and numerical iterative experiments are conducted to reveal the spatio-temporal evolution characteristics and propagation mechanism of non-legacy music information under different network topologies (SF and RR networks). The empirical study and Monte Carlo simulation experiments reveal the spatio-temporal evolution characteristics of non-heritage music information dissemination: structured forwarding dependence (84.46% of the initial forwarding dependence on the attention relationship), the lifecycle bimodal characteristics (two forwarding peaks within 72 hours), and the regulatory mechanisms of the dissemination parameters (α, γ, μ) on the diffusion efficiency. Experiments show that the cascade incremental prediction performance of the proposed complex network dynamics model on Aminer, SinaWeibo, and Twitter datasets significantly outperforms that of the existing methods (e.g., MSE is reduced to 2.862, and RMSPE is 0.483), which verifies its potential for application in high-precision prediction and optimization of propagation strategies.
Aiming at the problems of low target detection accuracy, poor real-time multi-target tracking and difficulty in recognizing small targets in complex traffic scenes, this paper proposes a real-time target detection algorithm based on improved YOLOv5s. A directed graph scene model containing environment features and object features is constructed, and the Marginalized Kernel algorithm is used to enhance the dynamic environment sensing ability. Improve the model architecture of YOLOv5s and optimize the feature extraction with the help of MHSARM. Enhance the spatial localization by combining CoordConv, and realize the joint learning of target detection and epigenetic features based on JDE paradigm. Experimental results show that on the TT100K dataset, the model in this paper outperforms all comparative models, with a 22.92% improvement in mAP@0.5 compared to the YOLOv5s baseline model, achieving an accuracy of 86.17%, and also demonstrating the best detection performance on the BDD100K dataset. The improved model performed best in terms of AP@0.5 accuracy in ablation experiments, achieving a mAP value of 80.24% in validation across six types of real traffic scenarios.
This study proposes an optimization model that integrates adaptive genetic algorithm and probabilistic matrix decomposition. The category features are quantified by WOE coding, and the global search capability of the genetic algorithm is improved by combining adaptive cross-mutation strategy, simulated annealing algorithm and orthogonal table initialization to filter out a subset of highly discriminative features. Further, the student-course nearest neighbor similarity is embedded into the probability matrix decomposition model, and the feature distribution is constrained by the logistic Steele function to optimize the personalized recommendation accuracy. Experiments based on the real MOOC dataset of Academy Online show that the model in this paper achieves optimal performance when the crossover probability Pc is 0.9, with HR and NDCG of 60.58% and 32.99%, respectively. When the variation probability Pm is 0.001, HR is 59.67% and NDCG is 32.78%, which performs close to the optimal value. In the Top-K recommendation, the Precision@5 and mAP@15 increased to 60.44% and 96.32%, respectively, which was significantly better than the XGBoost of the traditional model (34.15% and 59.48%). The results show that the multi-strategy fusion of genetic algorithm and probabilistic matrix decomposition model can effectively solve the course recommendation problem in highly sparse scenarios.
In the era of digital economy, the optimization of enterprise organizational structure not only relies on the iterative upgrading of technology, but also requires a systematic approach to transform the opportunities of digital transformation into sustainable competitive advantages. Taking digital transformation as an entry point, this study combines the strategic management process and chaos evolution theory to construct a theoretical model of the transformation mechanism of knowledge advantage power. Based on the principle of synergy, a mathematical model of the five knowledge subsystems (concept, system, management, technology, and customer) is established to reveal its dynamic evolution law and its supportive role to the core competitiveness of the enterprise. Through empirical analysis, it is found that the reliability test of the knowledge management process scale shows that the Cronbach α value of each dimension is higher than 0.7, such as knowledge application α = 0.966, which verifies the reliability of the scale. The structural equation model of industrial cluster enterprises is modified to show that knowledge innovation has a significant role in driving competitive advantage, with a standardized path coefficient of 0.472, p=0.000, and the open network environment has a particularly prominent impact on innovation, with a path coefficient of 0.684.The application of financial strategy optimization program in enterprise A significantly alleviates the problem of shortage of capital, and the sustainable growth rate in 2020 is 7.04% with sales growth rate of 16.56% narrowed to 5.74% in 2024, and the financial status changed from shortage to surplus.
Reducing the risk of enterprise capital chain breakage is the key to guarantee the stable operation of enterprises. This paper analyzes the characteristic variables affecting the financial status of enterprises and constructs the financial early warning index system. Use the isolated forest anomaly detection algorithm to calculate the likelihood of sample data anomalies, and quickly realize data preprocessing. Using K-neighborhood algorithm to complete the calculation of financial data distance, to determine the early warning classification of the sample enterprise indicator data. Combined with circular experiments to find the optimal parameters of the financial early warning model. Compare the prediction accuracy of the financial early warning model of each classification to verify the advantages of the model in this paper. The results show that the model has the highest prediction accuracy when the environmental parameter b takes the value of [0.2,0.9] and the threshold percentage p takes the value of [0.7,1]. The prediction accuracy of the financial early warning model based on the K-neighborhood algorithm reaches 84.94%, which is higher than that of the other nine prediction models, and it has excellent financial risk prediction capability.
This paper focuses on the dynamic characteristics of teachers’ professional development in the context of physical education reform, and constructs a career trajectory portrait system based on time series prediction model. A multi-seasonal frequency domain augmented PD-FEformer model is designed to analyze the non-linear evolution law and key turning points of teachers’ professional competence. Combined with cognitive network analysis to reveal the hierarchical features of professional competence evolution, the PD-FEformer model is used to capture the barriers to teachers’ professional competence development. Physical education teachers had the lowest covariance coefficients for A6-A7 (0.04) and A5-A7 (0.05), and the highest covariance coefficient between A3-A1 (0.46), followed by A2-A3 (0.42) and A3-A4 (0.41). The model identified shortcomings in the development of professional competence of physical education teachers, including 18% of physical education teachers who had not participated in open classes, 26% of teachers who had not won any prizes for their papers in the last three years, and as many as 36% of teachers who had no idea at all about professional development.
This paper focuses on Malta’s cooperation and interaction mode in the global economic system, and analyzes its economic characteristics and structural optimization path. Taking Malta as the research object, the index system of influencing factors is constructed, including three dimensions of regional trade development, border economic development and regional economic development. The observation period is 2020-2024, and principal component analysis is used to explore the core factors driving Malta’s economic development. Pearson correlation coefficient was used to measure the linear correlation between the factor indicators, and the validity was analyzed relying on the KMO test and Bartlett’s sphericity test.F1, F2, and F3 mainly explained 90.274% of the total variance, and the total amount of exports X2, total inbound tourism revenue X5, and gross regional product X6 had the greatest impact on the principal components F1, F2, and F3, with the coefficients of 0.957, 0.942, respectively, 0.896.Based on this, this paper proposes a differentiated cooperation strategy with a view to providing a theoretical basis and practical reference for Malta’s integration into global value chains.
For the association problems in the path of reforming the Civic Politics of yoga courses in colleges and universities, this paper takes the relevant elements between yoga and Civic Politics as the entry point. The text analysis method is used to mine the core elements of yoga courses and Civic and political courses. Aiming at the limitation of TF-IDF model in the accuracy of keyword extraction, the G1 assignment method is used to integrate the multidimensional features of keywords. Based on the different attributes of the words, the corresponding weights are assigned to rank the importance of the words in a more scientific way, and the comprehensive weights of the words are calculated accordingly. As a result, the keyword extraction algorithm SLPL-TF-IDF is proposed based on multiple features of words and semantic information extraction based on the Longformer pre-trained language model, and then the improved Apriori algorithm is introduced to mine and output the association rules between yoga courses and the knowledge of Civics and Politics, which provides effective technical support for the construction and optimization of the path of Civics and Politics reform of yoga courses in colleges and universities. In the experimental reform of yoga courses’ ideology and politics in K colleges and universities, it is found that the subject word “yoga philosophy” has the highest correlation with other high-frequency subject words, which are all up to 0.90 and above. The theme of “Yoga Philosophy” should be used as an important bridge for the construction and optimization of the path of political reform of yoga courses in colleges and universities.
Under the background of “dual-carbon” target, carbon trading mechanism, as the core carrier of marketbased emission reduction tools, the scientificity and flexibility of its quota allocation directly affects the efficiency of emission reduction and the fairness of the industry. This study proposes a dynamic allocation framework integrating entropy weight method and multi-objective genetic algorithm (MOGA), aiming at the synergistic optimization of fairness, efficiency and operability of carbon emission quotas. By constructing a two-layer allocation model for carbon trading mechanism, the quota object is firstly divided into two types of equipment: power generation and heat production, and the initial quota is dynamically allocated based on the benchmark value of carbon emission per unit of power. In view of the limitations of the baseline method, the entropy weight method is introduced to construct a three-level index system of “emission reduction responsibility-capacity-potential”, quantify the weights of each link in the coal power supply chain, and solve the complex multi-objective optimization problem by combining with the improved MOGA algorithm. Simulation results show that the improved MOGA converges to the Pareto frontier in the IEEE 30-node system in only 53 iterations, and the optimization efficiency is improved by 36.05%, and the running time is shortened to 34.17 seconds, which is significantly better than that of the traditional genetic algorithm (47.33 seconds) and the ant colony algorithm (53.43 seconds). In the case of industrial carbon emission allocation in province A, the efficiency value of each region is improved to 1.00 after optimization, and the direction of quota adjustment is linked to the potential of emission reduction, e.g., the quota of area G is increased by 1,294,800 tons, and the quota of area K is decreased by 1,435,100 tons, which verifies the model’s dynamic synergistic ability in terms of fairness and efficiency.
Optimize the allocation of community continuing education resources to improve the community humanistic environment. This paper counts the amount of community continuing education resources, analyzes the efficiency objective and equity objective of resource allocation. And design the continuing education resource system based on optimization algorithm. Select the genetic algorithm as the optimal configuration scheme solving algorithm, use the genetic principle to be configured resources to solve the unknown real number form coding. Find the optimal solution of the configuration scheme through the process of generating the initial population and defining the fitness function. Integrate adaptive mutation and small habitat technology to improve the genetic algorithm and improve the performance of the algorithm. The results show that the improved genetic algorithm achieves the convergence of the objective function value at 90 iterations. The convergence time of the algorithm is no more than 1500s in all three community resource allocation solutions. The results of the five characteristic indexes are high, high, low, high, and high, respectively. The average configuration cost is only 78.215*103 yuan, which is lower than the comparison algorithm, and it has performance advantages such as fast convergence speed and low solution cost.
With the rapid development of social media platforms, the dynamics and complexity of online public opinion have posed serious challenges to disaster emergency management. In this paper, we propose a risk control framework based on deep reinforcement learning, which realizes structured modeling and dynamic control of public opinion evolution by constructing a spatio-temporal decomposition meta-model of public opinion event scenarios, decoupling the events into three types of characteristic elements, namely, location, type of public opinion, and subject of public opinion, combined with knowledge meta-theory, and designing the Weisbuch-Deffuant viewpoint aggregation rule that takes into account the heterogeneity of the individuals and time lag of the environment. In order to realize the structural modeling and dynamic control of opinion evolution. For sensitive text classification, a heterogeneous graph construction method is proposed to integrate text, words and sensitive entities in the public opinion domain, and graph convolutional networks are utilized to enhance semantic association and risk feature extraction. The “2023 Beijing-Tianjin-Hebei Heavy Rainstorm” event is used as an empirical case to analyze the sentiment, influence and stage evolution of public opinion. The experiment shows that the classification accuracy of the risk warning model based on Weisbuch-Deffuant network reaches 99.36%, and the root mean square error (RMSE) is 0.0079, which is 6.46% and 1.97% lower than that of the traditional BP and GA-BP models, respectively. The risk level analysis shows that most of the public opinion events are concentrated in medium risk (C level), which verifies the effectiveness of the model in dynamic prediction and precise warning.
In this paper, we combine the interactive feature capture and basic feature capture modules of multilayer perceptron to extract and fuse features of knowledge concepts. With the help of cluster search algorithm and softmax way to optimize the learning path, the learning path recommendation model based on multilayer perceptron is proposed. Suitable datasets and research objects are selected, and the effectiveness of the blended teaching mode supported by the TMLPE model is examined through experiments. The TMLPE model scores higher than the baseline model in MRR and NDCG indexes, and the Er index is 12.23% higher than that of the ELPRKG model with the second best performance, which is capable of generating accurate and diversified learning paths for learners. The different models of teaching activities show significant differences at the 0.01 level (p=0.003.42, 4.06>3.15, and 3.96>3.11. The pvalues of the personalized learning needs and the personalized learning goals as a whole are all less than 0.05 and the R-values are all in the interval of 0.5 to 1.0. The intelligent recommender system based on the multilayer perceptual machine model in this paper can effectively meet the learning needs of different students, and has a positive role in promoting the development of blended teaching for English majors.
The in-depth promotion of education informatization has put forward the demand for specialization and systematization in the assessment of English teaching effectiveness in colleges and universities. This paper introduces the adaptive CS algorithm (ACS algorithm) to optimize the clustering center, makes up for the defects that the original K-means clustering algorithm is easily affected by the initial clustering center and easily falls into the local optimum, and proposes the K-means clustering algorithm based on the improved cuckoo search algorithm (ACS-Kmeans). Applying this algorithm to deal with the data related to English teaching in colleges and universities, combining the characteristics of English teaching in colleges and universities, designing the corresponding programming algorithm and fitness function, and establishing the clustering algorithm for English teaching data in colleges and universities. According to the teaching data clustered by the algorithm, the evaluation indexes of teaching effect of English in colleges and universities are initially proposed. Combined with the opinions of experts, the evaluation system of English teaching effectiveness in colleges and universities is finally established, which contains 4 first-level indicators and 12 second-level indicators. Calculating the weights of the index system, the weight of “teaching plan” in the first-level index is 0.4181, which means that the improvement and optimization of English teaching effectiveness in colleges and universities should pay more attention to the design and arrangement of the teaching plan.
Effective games in the interaction of international relations provide a feasible path for maximizing national interests. This paper introduces evolutionary game theory into the study of interactive behavior in international relations, and analyzes the game strategy influencing factors from three aspects: subject assumptions, research methods and research objects, and opponent’s certainty. Using Nash equilibrium and Stackelberg equilibrium strategy, the interactive decision-making process of peer-to-peer non- and master-slave non-cooperative games is calculated. Combining the rule of imitating the best player, the rule of replicating dynamics and the rule of Fermi updating, the strategies of the game players are adjusted to optimize the benefits. Taking the US-China energy bilateral trade game as an example, we construct a model of the influencing factors of the game strategies, analyze the current situation of the interests, and propose a method to reach the cooperative equilibrium of the game. The results show that the five influencing factors of the US-China energy game are politics>policy>technology>resources>culture. The score of China’s energy trade game strategy is 0.88, higher than that of the U.S. 0.83. During the period of 2018-2023, the energy dependence degree of both China and the U.S. exceeds 40%, which is one of the reasons leading to the choice of competitive game.
With the acceleration of globalization, the social integration of foreign immigrants has become an important issue affecting social harmony and sustainable development. This study takes foreign immigrants in City A of China as its target, and based on the social integration theory, constructs an analytical framework containing four dimensions, namely human capital, support network, policy factors and social acceptance, and empirically examines the path of each factor’s influence on social integration through multiple linear regression modeling. The study used a random sampling method to conduct a questionnaire survey on foreign immigrants in City A. The results of factor analysis showed that human capital r=0.868, social acceptance r=0.826, support network r=0.717, and policy factors r=0.664 were significantly and positively related to social integration (p<0.01). Multiple regression analysis showed that duration of stay in China had the strongest contribution to cultural integration β=14.005 and social integration β=12.421 (p<0.01). Master's degree and above significantly promoted cultural β=10.551 and social integration β=12.036, while there was a negative effect of coming from developed countries on psychological integration β=-5.799, p<0.01. The analysis of differences in individual characteristics showed that the overall level of social integration of females (M=3.812) was significantly higher than that of males (M=3.534), and that the level of integration of the group of young adults between the ages of 20-29 years old was the highest (M=4.034), Asian immigrants (M=4.145) performed best due to cultural similarity, and African immigrants (M=2.945) faced significant challenges. The study verified the theoretical hypotheses and revealed that the economic factor, R² = 0.3411, has more explanatory power compared to the psychological factor, R² = 0.0403, which provides a scientific basis for policy formulation.
In this study, a hybrid genetic algorithm (HGGA) improved based on greedy strategy is proposed for the path planning problem of resource allocation for Civic and Political Education courses. The improved genetic algorithm is proposed based on the greedy strategy to increase the correction operation for perfect and imperfect solutions. Combined with the special needs of Civic and Political Education in value shaping and ideology dissemination, the resource content composition, classification organization and dynamic adaptation mechanism are optimized. Experiments show that HGGA has optimal convergence probability, convergence speed, optimal convergence extreme value and average convergence extreme value in the test function compared with the comparison algorithm, and the solution accuracy is better. The traditional genetic algorithm has to be iterated to about 30 generations to find the optimal solution under the calculation of the algorithm, while the HGGA algorithm can find the optimal solution under the calculation of its algorithm as long as it is iterated to about 23 generations. In the final exam at the end of the teaching experiment, the passing rate of the experimental group class was 7.5% higher than that of the control group class, and the excellence rate was 2.5% higher compared to the control group class. The results of the mean score t-test showed that the mean score of the experimental group was 7.97 points higher than that of the control group at the end of the experiment, and there was a significant difference in the students’ performance in Civics and Political Science (p=0.019, p<0.05). The mean scores of students in the experimental group classes were higher than those in the control group classes in the three dimensions of behavioral attitudes, affective tendencies, and value orientations, and significant differences emerged in the dimensions of affective tendencies (p=0.013) and value orientations (p=0.035) (p<0.05).
As an important means to improve the efficiency of English teaching, the current method of student stratification management still has shortcomings such as being too broad and not fully considering the students’ situation. This paper organizes the relevant concepts of Bayesian network, and on the basis of this theory, proposes Bayesian network prediction as a prediction method of students’ performance. At the same time, in order to analyze and predict students’ performance more scientifically and objectively, the simple Bayesian classification method is introduced. Combining the traditional weighting method and informatics method to calculate the weight value, the premise of extending the conditional independence of the simple Bayesian classifier. Based on the prediction of students’ performance, the layered teaching concept is used as a framework to design the English layered teaching model and the learner’s layering method. The stratified management of students is realized by adopting corresponding teaching methods based on students’ English achievement characteristics. The tiered management method was recognized by 90.00% and above of the students in the practical application.
With the deepening of the development of digital technology and the innovative integration of Civic and Political Education, the traditional teaching strategy has limitations in personalized adaptation and dynamic optimization. This paper proposes an optimization algorithm for the teaching strategy of Civic and Political Education based on the hybrid intelligent optimization method. The genetic algorithm is improved by combining the dynamic generation gap optimization strategy and the phased optimization strategy, and the multi-dimensional coded fitness function model is constructed to realize the intelligent dynamic adaptation of teaching strategies. The traditional genetic algorithm reaches the optimal solution at 18 iterations, and the improved genetic algorithm is close to the optimal solution at 9 iterations. In the control test, the experimental group’s civic literacy, recognition of the teaching model, and professional literacy were higher than that of the control group, and the difference was statistically significant (P<0.05). In the experimental group, more than 85% of the students thought that the optimized teaching strategy of Civic and Political Education teaching was effective and helped to stimulate learning enthusiasm in the course of teaching. More than 95% of the students thought that the knowledge reserve, thinking ability and comprehensive quality were significantly improved by using the optimized teaching strategy of Civic and Political Education.
The explosive growth of digital media data makes the traditional centralized processing architecture face serious challenges in computational efficiency and storage cost. This paper responds to the demand for efficient processing of large-scale digital media data and launches a research and analysis based on distributed computing architecture. Combing the feature clustering process of distribution sets and features of association rule data, as well as the distributed data frequent item clustering collection process. At the same time, the CDMDP protocol with advanced encryption technology, distributed storage mechanism and smart contract features is designed to effectively realize the distribution and protection of digital data content. Combining logical search tree and parallel algorithm SFUPM-SP, Spark-based parallel mining algorithm for distributed computing of big data is proposed as a processing and optimization method for large-scale digital media data. In the system platform built by this paper’s method, the average execution time of K-Means algorithm on data is only 17.9 seconds, which demonstrates the effectiveness and feasibility of this paper’s method.
The rational allocation of resources will promote the continuous forward development of green economy. This paper designs a multi-objective linear programming model based on regional green development efficiency. Considering the comprehensive multi-objective resource allocation scheme to minimize the green resource input and maximize the economic output. The multi-objective particle swarm optimization algorithm (MOPSO) is introduced to explore the non-inferior solution set of regional resource allocation by combining the non-dominated sorting and congestion comparison strategies. The results show that the multi-objective particle swarm optimization algorithm has faster convergence speed and smaller objective function values among the three standard test functions. The algorithm was used to optimize crop water allocation and 180 sets of non-inferior allocation solutions were obtained. Among them, with the increase of water allocation, the net irrigation benefits of three crops increased continuously to 26.37*103 yuan/hm², 30.54*103 yuan/hm², and 18.57*103 yuan/hm².
Interactive participation, as an important part of e-commerce teaching to check and fill the gaps, still has a large optimization and improvement space in the current e-commerce teaching classroom. This paper takes students’ classroom behavior performance as the entry point, transforms and defines students’ classroom behavior data, and constructs students’ course behavior set. At the same time, in order to effectively improve the recognition accuracy of students’ behavioral actions, an adaptive aggregation method is used to migrate relevant texture features. Dynamic filters and attention enhancement modules are used to capture students’ behavioral action information with high accuracy and build a reference-based super-resolution model. Finally, the student classroom behavior recognition algorithm is utilized to detect student classroom behavior performance and provide effective data reference for teaching interaction optimization. The designed method promotes 33 students to actively participate in classroom interaction in assisting e-commerce classroom teaching, and shows high reliability in optimizing e-commerce teaching interaction.
Against the background of the accelerated digitalization process of the global economy, the impact relationship between digital transformation and international trade has become a part of economic development that cannot be ignored. This paper takes the multiple regression model analysis method and hierarchical analysis method as research tools to further explore the role of digital transformation on the country’s international trade path. After clarifying that “Internet Plus” can promote the innovation of international trade model, change the way of international trade information dissemination and improve the efficiency of international trade transactions, 10 developing countries of RCEP organization countries are selected as research objects. At the same time, the export trade volume (EX) is selected as the explanatory variable, and the level of industrial digital transformation (DT) is the core explanatory variable, and the relationship between digital transformation and national export growth and export trade scale is successively discussed. The effect of digital transformation on the country’s export growth is significantly positive (P<0.001), indicating that digital transformation is an important wind for developing international trade in developing countries.
This paper introduces a hybrid recommendation algorithm based on collaborative filtering of vocal resources and content in the design of interactive multimedia-assisted vocal teaching system. Based on historical learning data and so on, the sparse matrix between students’ attributes and resources is constructed, and the similarity is calculated to complete the accurate recommendation of vocal music learning resources. The speech emotion recognition module uses a convolutional neural network (CNN) model based on multilevel residual improvement. The multilevel residual structure reduces the loss rate of vocal singing voice features, and at the same time reduces the amount of model computation to ensure that students’ voices are accurately recognized. The results show that: the resource similarity range of this paper’s hybrid recommendation algorithm is [0.748,0.894], the resource coverage are greater than 95%, at the same time, the AUC area is greater than 0.9. The recognition rate of the model based on the improved CNN is stable greater than 0.95 for about 45 iterations, and the loss value is less than 0.4. The introduction of RMSProp algorithm has the optimization of 0.03 and 0.15, respectively. Effect. The mean value of the system’s effect on vocal music teaching reaches more than 4.5, and the standard deviations are all less than 0.10.
This paper takes the optimization of heat transfer performance of air conditioner heat exchanger as the core objective, combines with fluid dynamics simulation technology, and systematically discusses the optimization design of heat exchanger. Through the establishment of porous medium model and K-Epsilon turbulence model, ICEM CFD software is used to complete the meshing and numerical simulation. Combined with the verification of grid independence and comparison of empirical formulas, the calculation accuracy is ensured. A conventional shelland-tube heat exchanger is taken as the research object to analyze the sensitivity of parameters such as pitch and tilt angle to Nusselt number and pressure drop, and propose an optimization scheme based on the balance between heat transfer efficiency and energy consumption. Selecting S mm 2.5 and \(\theta=40\) as the optimized structural parameters, the optimized air-conditioning heat exchanger heat transfer efficiency is increased by an average of 350W/(m2-K), the heat transfer efficiency is increased by about 10%, the energy consumption is reduced to 129kW, the footprint is reduced by about 52m, and the maintainability is increased by 26%. The four parameters of the air conditioning heat exchanger under the optimization scheme of this paper, namely, total heat transfer, latent heat, latent heat percentage and dehumidification, are all the largest, which verifies the validity of the optimized design and its applicability in engineering.
The increasing development and maturity of digital modeling technology makes its application integration in visual communication design possible. This paper proposes a multi-visual 3D animation modeling method by combining visual communication design and digital modeling technology. For the difficulty of drawing curved objects in the modeling process, a luminance interpolation method is used to deal with the surface of objects represented by arbitrary raised polygons. At the same time, Virtools interactive software is used for the design and production of 3D interactive animation. In addition, based on the experimental results, the improved SIFT algorithm with higher matching accuracy and shorter matching time is chosen as the image feature extraction algorithm. By integrating dynamic interaction and modeling, the innovative performance and application of digital modeling technology in visual communication design is realized. In the overall performance of the proposed technology, the difference between the expected and tested values of several indexes is controlled in the interval of [-5,5], which has a high degree of matching with the expected user experience.
This paper constructs a cross-market risk spillover effect model and volatility measurement framework based on high-frequency data to study the real-time impact of uncertainty shocks on price volatility in the container transportation market. Through the multivariate multi-quartile conditional autoregressive value-at-risk (MVMQCAViaR) model, we quantify the bi-directional extreme risk spillover effect between shipping and financial markets, and reveal the dynamic transmission direction and absorption capacity of tail risk. Combined with the GARCHMIDAS model, the interaction between low-frequency economic policy uncertainty and high-frequency market volatility is separated, and it is found that the macro factors have a significant impact on the long memory of shipping price volatility. The DCC-MIDAS-CoVaR model is further utilized to analyze the time-varying characteristics of crossmarket linkages under uncertainty shocks, and the results show that there is heterogeneity in the intensity of policy shocks on different market linkages. For the high-frequency volatility measure, the jump component is decomposed by realized volatility with power-of-quadratic variance, which shows that the contribution of jumps to price dispersion accounts for more than 30% of extreme volatility. The empirical part focuses on the containerized freight index, combining 168 monthly data to construct a VAR model with impulse response analysis. The results show that the shocks of WTI and Brent crude oil prices to the freight index are asymmetric. a 1% shock in Brent oil price leads to a peak response of 0.9% in the 2nd period, which is significantly higher than that of WTI’s 0.6%, and the response period extends to 5 periods. There is a 1-2 period lag in the transmission path of the manufacturing PMI index to freight rates, and the demand-side shock decays 40% faster than the supply-side. Through AR root test and dummy variable adjustment, the model effectively captures the impact of structural breakpoints in the freight index.
The trend of green transformation of economic development puts forward higher requirements on the sustainable development ability of enterprises, ESG, as an important concept of enterprise operation under sustainable orientation, can make up for the shortcomings of traditional financial performance evaluation and make a full evaluation of the sustainability ability of enterprises. This paper combines the existing research and the actual situation, and designs a set of corporate sustainable development performance evaluation system with 7 primary indicators and 30 secondary indicators. At the same time, the entropy value method and the superiority and inferiority solution distance method are chosen as the method of assigning index weights. Listed companies in M industry are selected as the research object, with corporate performance (ROA) as the explanatory variable and ESG performance (ESG) as the core explanatory variable. Through correlation analysis and multicollinearity test, the development status of M industry listed companies is initially exposed and multicollinearity is avoided. Subsequently, research hypotheses are proposed and empirical analysis is carried out by linear regression with stability test. Good ESG performance will increase the economic efficiency of enterprises to a certain extent, in which the regression coefficient between ESG performance (ESG) and corporate performance (ROA) is 0.0007, which is significantly positive at 1% level.
With the growing demand for environmental monitoring and energy management in smart buildings, energy efficiency optimization of distributed sensor networks has become the key to improve system performance. In this paper, a distributed sensor network energy efficiency regulation method (DCCMOEA) based on cooperative co-evolutionary algorithm is proposed. The multi-objective optimization of network energy consumption, coverage and node lifetime is achieved through the mechanism of decomposition variables and sub-population co-evolution. Compared with FA and GA, the optimized clusters of DCCMOEA algorithm are more uniformly distributed, the number of active nodes decreases the slowest at p=20%, and the number of active nodes is more than that of FA and GA. when the number of iterations is greater than 20, the coverage rate of DCCMOEA algorithm is stable at more than 95%, and the average node oscillation time is stable at less than 5ms. For the deployment of 10 wireless sensor network nodes, the data transmission packet loss rate of DCCMOEA on 10 network nodes is always below 0.6, which is lower than the comparison methods. The application of DCCMOEA algorithm provides an efficient solution for the deployment of sensor networks in smart buildings.
This paper focuses on the data analysis method of bridge quality monitoring system under the framework of edge computing, and proposes an intelligent algorithm to support the quality assessment system. Based on the EDA method to assess data integrity, a double similarity metric scheme is designed to quantify data accuracy. A lightweight deployment scheme based on RKNN model is constructed to optimize the reasoning efficiency at the edge end by combining the model quantization technique. The validation of engineering examples shows that the change rule of the 2 metrics, histogram cosine and box-and-line diagram normal value percentage, has high consistency, and in the case of a sample capacity of 2000 and significance levels of α=0.05 and 0.01, the change rule of the cosine similarity metrics is in line with the a priori data quality judgment, and the detection result of the box-and-line diagram is roughly in line with the a priori fact. In 1000 calculations, the prediction accuracy of the RKNN model ranges from 78% to 95%, and the average calculation accuracy is higher than that of the AD and ND models. Under 10% random number share, the average accuracy of RKNN model is as high as 82.3%, exceeding 6.75% and 7.22% of AD and ND models. The research results provide technical support for bridge quality control in the whole life cycle.
In the era of digitization, creating city image IP is the key to enhance the effect of the city’s external publicity. This paper systematically analyzes the factors influencing the competitiveness of city IP brand and constructs a comprehensive evaluation index system. The method of approximating ideal solution ranking (TOPSIS) is chosen to calculate the distance between city image IP design alternatives and positive and negative ideal solution solutions to find the optimal solution. Using the gray correlation analysis method, the gray correlation of each key index is calculated to mine the key factors of urban image IP optimization. The results show that the weight of the core factor is 0.35, and the weight of tourism resources and urban environment is 0.20. The comprehensive evaluation index of the brand communication effect of each city image IP Di improves from 0.314247 to 0.921435. The grey correlation of the four factors of the first-level index layer is always greater than 0.500, and the standard deviation of the branding factor has the smallest value of 0.58. The comprehensive use of the TOPSIS method and the grey correlation analysis method to find the optimal factors. TOPSIS method and gray correlation analysis can find the optimal city image IP design scheme and effectively improve the city brand communication effect.
Traditional supervised learning methods have limitations in labeling speed, scene adaptability and accuracy. Unsupervised learning methods do not require labeling data and can automatically extract the laws, which provides a new idea for image segmentation, especially in medical diagnosis, automatic driving and other highprecision requirements of the scene has an important application value. This study explores unsupervised learningbased image segmentation methods in computer vision, focusing on the improved kernel fuzzy C-mean clustering algorithm (KFCM). The study constructs an image segmentation algorithm with noise robustness by introducing a kernel function instead of Euclidean distance and combining it with super-pixel segmentation technique. The experiments are validated on synthetic, natural and medical images and compared with various classical algorithms. The results show that when 30% Gaussian noise is added to the synthetic image, the segmentation accuracy of the KFCM algorithm reaches 99.8%, which is 12.6% higher than that of the traditional FCM; in the segmentation of the natural image with the addition of mixed noise, the average value of the segmentation coefficient of the KFCM reaches 96.45%, which is 17.47% higher than that of the FCM, and the segmentation entropy is reduced by 34.57%; and in the segmentation of the medical cell image, the KFCM algorithm shows good edge keeping ability in complex noise environment. The study shows that the improved KFCM algorithm significantly improves the image segmentation accuracy and anti-noise performance through the adaptive neighborhood information and kernel mapping, and provides an effective solution for unsupervised image segmentation, which is of practical application value for medical diagnosis, automatic driving and other fields.
With the development of information technology, the traditional mode of Civic and Political Education has become insufficient. This study explores the application value of affective computing and multimodal learning behavior data mining in Civic and Political Education. A multimodal classroom environment for Civic and Political Education was constructed based on constructivist learning theory and multimodal discourse analysis theory, and a multimodal learning behavior analysis model integrating deep learning and Bayesian network was designed. The experiments used hybrid discriminant restricted Boltzmann machine (HDRBM) neural network to process the multimodal data, and analyzed the learning causality through Bayesian network. The study invited 30 college undergraduates to participate in the experiment, and the results showed that the percentage of individual students’ focused emotions identified by the system was 47.8%, which was close to the 54.2% of the manual statistics; in the analysis of the overall students’ emotions, the focused emotions identified by the system was 46.78%, and the manual statistics was 51.42%, and the errors of both of them were small. The frequency analysis of multimodal behaviors shows that the frequency of A7 (teacher-oriented) behaviors in students’ participatory learning is the highest; in focused learning behaviors, the ratio of students’ gaze on learning aids (R4) gradually tends to 1 from more than 1 at the beginning of the semester, which indicates that students’ focus on the classroom gradually increases. The study proves that multimodal sentiment analysis and learning behavior mining can effectively improve the teaching effect of Civics education and provide new ideas for Civics education innovation.
Track and field events place diverse demands on athletes’ physical fitness. Traditional training methods have limitations, including fixed patterns, low intensity and neglect of individual differences, which make it difficult to cope with dynamic changes in events. In this study, a time series model was used to analyze the fluctuation of physical fitness of track and field athletes in different training cycles, and to explore the scientific methods to optimize the training effect and athletic status. The study selected 22 athletes at level 2 and above in track and field sprinting, jumping and hurdling events from a university, randomly divided into 11 athletes each in the experimental group and the control group, and implemented an 8-week comparison experiment. The data were analyzed by paired-sample t-test and independent-sample t-test to compare the changes of athletes’ physical fitness parameters before and after training, and time series correlation analysis was applied to investigate the relationship between coaching quality and athletes’ development. The results showed that the experimental group was significantly better than the control group in the standing long jump, 100 m and high jump (P<0.001), in which the average performance of the experimental group in the standing long jump amounted to 2.89±0.68 m, the average performance in the 100 m was 12.32±0.47 s, and the average performance in the 110 m hurdles was 20.07±1.04 s. The time-series analysis showed that the average performance of the new athletes in the 4th year of the team with the retired allocation numbers showed the highest correlation (0.653), while the effect of highly educated coaches on the level of athletes' grades also peaked at year 4 (correlation -0.689). The study shows that scientific cycle training combined with time series analysis can effectively improve athletes' physical fitness level, while the optimization of the training system needs to take into account the professional quality and practical ability of coaches, and at the same time, the cycle of athletes' success is about 4 years, which provides data support for the training planning of track and field.
Currently, the mental health problems of students in colleges and universities are becoming more and more prominent, this study constructed a Bayesian network-based prediction model of college students’ mental health status and designed corresponding interventions. In terms of methodology, firstly, multi-dimensional student behavioral features were represented and extracted, including consumption features (dietary regularity, diligence, number of meals shared) and Internet access features (length of time on the Internet, downtime, traffic use); secondly, the Jenks Natural Breaks algorithm was used to label the featured data, and the Apriori algorithm was used to mine the behavioral association rules of the psychologically healthy and psychologically abnormal students; then a Bayesian network model was built to predict the mental health status of students and design interventions accordingly. Then a Bayesian network model is established to predict students’ mental health status, and the results are compared with those of decision tree, support vector machine, and boosting algorithm. The results show that the Bayesian network prediction model has the best performance, with an accuracy of 0.9415, a recall of 0.9387, and an F1 value of 0.9389, which are higher than those of the other three algorithmic models in the anxiety binary classification experiment; and in the anxiety multiclassification prediction experiment, the Bayesian network model has an Fmacro value of 0.8549, and an Fmicro value of 0.8814, which are also better than the other models. The study also found that the group of psychologically abnormal students is usually characterized by less regular diet, less diligence, fewer number of people sharing meals, longer time on the Internet and more traffic use, and later time off the Internet on weekdays. The Bayesian network prediction model constructed in this study has high accuracy in predicting the mental health status of college students, which can provide technical support for mental health monitoring and precise intervention in colleges and universities.
With the development of deep learning, distributed word vector technology based on neural networks shows strong potential. However, the English corpus is diverse in type and large in volume, and traditional word vector computation is difficult to adapt to the semantic evolution and semantic association of words in long textual contexts in dynamic environments, and the effect varies significantly on different sizes of corpora. In this paper, a word vector computation method Transformer-DSSM based on the Transformer model for English corpus is proposed to solve the problem that traditional word vector computation cannot effectively deal with polysemous words and contextual relevance. The study is based on a deep semantic model, utilizing the Transformer coding layer for feature extraction, and calculating lexical semantic relations through the self-attention mechanism and cosine similarity. Experiments on the SICK and MSRP datasets show that the Transformer-DSSM model obtains excellent performance with Pearson’s coefficient of 0.887, Spearman’s coefficient of 0.845, and mean squared error of 0.2286 on the SICK test set, and reaches an accuracy of 77.8% and an F1 value of 83.8% on the MSRP test set. In addition, simulation experiments on the English news recommendation datasets MIND and Adressa verify the effectiveness and practicality of the model in word vector representation, providing a new solution for English corpus processing.
Blue carbon economy, as an emerging form of marine economy, has significant ecological value by protecting and restoring marine ecosystems to improve the carbon sink function. Macao and Zhuhai are positioned as new growth poles on the west bank of the Pearl River Estuary in the Guangdong-Hong Kong-Macao Greater Bay Area Development Plan by virtue of their geographical advantages. Exploring the optimization path of creating a blue carbon industry cluster in the Macao-Zhuhai pole is of great significance to promote the synergistic development of the two regions and the high-quality development of the marine economy. Based on the system dynamics method, this study explores the optimization path of creating a blue carbon industry cluster in the MacauZhuhai Pole. By constructing a system dynamics model of the blue carbon industry cluster in the Macao-Zhuhai Pole, the interaction relationship between key factors such as government investment, technological innovation, the construction level of the Macao-Zhuhai Pole and blue carbon production was analyzed, and model validity tests and sensitivity analyses were carried out. The results show that: fiscal expenditure, raw material cost and fixed asset investment are more sensitive to the impact of blue carbon processing industry cluster development, and by 2030 under the high-speed development scenario, the size of blue carbon processing industry cluster in the AZZ Pole can reach 901.301 billion yuan, which is 48.3% higher than that of the base scenario; under the growth rate scenario of fixed asset investment, the size of cluster development can reach 680.122 billion yuan, which is 14.98% higher than that of the base scenario; labor cost is more important to the development of blue carbon processing industry than the base scenario. 14.98%; labor cost has a relatively small impact on the development of industrial clusters. Based on the simulation results, optimization paths such as low-carbon transformation of high-carbon industrial clusters, transformation of industrial parks to low-carbon industrial parks, development of modern service industrial parks, creation of strategic emerging industrial parks, and construction of low-carbon industrial chains are proposed. The study has an important reference value for promoting the healthy and sustainable development of blue carbon industrial clusters in the AZZ Pole, and promoting the high-quality development of regional economy and ecological environmental protection.
With the increase of traffic flow, the road carrying level needs to be improved, more and more bridges need to be demolished and rebuilt. The primary principle of bridge demolition is safety first, but collapse accidents caused by improper construction occur from time to time. This paper takes Qingshuihe Bridge as the research object, and studies the distribution law of structural residual bearing capacity during bridge demolition by finite element numerical simulation method, so as to provide theoretical support for the safe demolition of bridges. Based on ABAQUS finite element software to establish the bridge model, using explicit finite element analysis method, the structure along the z-axis equally spaced division of 30 free slices, analyzed the distribution of internal forces and residual bearing capacity of the bridge structure under different demolition time. The study shows that: with the increase of demolition time, the maximum value of internal force in Fx direction reaches 3260kN, which occurs at the number of slices 15; the internal force in Fy direction shows a symmetric structure about the number of slices 15, with the maximum value of 8.83×104kN; the residual bearing capacity of the structure decreases from the initial 194896kN to the 144676kN in 240min, which is the rule of change of the double-exponential decay function. By comparing the tests of specimens FCD-1, FCD-2 and FCD-3 with the finite element simulation, the model errors were 9.2%, 4.3% and 5.2% respectively, which verified the accuracy of the model. This study provides a reference basis for the structural safety control during the demolition process of similar bridges such as the Clearwater River Bridge.
Agricultural carbon financial innovation provides a new path to promote the development of low-carbon agriculture, which is of great significance in realizing the goals of sustainable agricultural development and carbon emission reduction. This study explores the impact mechanism of agricultural carbon financial innovation on agricultural carbon emission reduction. Based on the ternary cycle theory, a panel data model is constructed, and the data of 90 prefecture-level cities in five major agricultural provinces in China from 2014 to 2024 are selected for empirical analysis. The results show that agricultural carbon financial innovation has a significant inhibitory effect on agricultural carbon emissions, with a regression coefficient of -0.177 and significant at 1% confidence level. Agricultural carbon financial innovation promotes agricultural carbon emission reduction through the three paths of small cycle of farmers, medium cycle of industry and large cycle of society, in which the regression coefficient of small cycle of farmers is 0.003, which is significant at 5% statistical level; the regression coefficients of medium cycle of industry and large cycle of society are 0.068 and 0.042 respectively, which are both significant at 10% statistical level. In addition, the level of urbanization development plays a significant moderating role in the agricultural carbon emission reduction effect of agricultural carbon financial innovation, with an interaction term coefficient of -0.633 and significant at the 1% level. Regional heterogeneity analysis found that the coefficient of the effect of agricultural carbon financial innovation on carbon emissions in the western region is -1.0836, with the strongest inhibitory effect. The findings of the study have important policy implications for improving the agricultural carbon financial system and promoting the green and low-carbon transformation of agriculture.
The global aging trend is intensifying, China’s elderly population over 60 years of age is growing rapidly, and the working-age population is on a downward trend. The pressure on pension expenditure is increasing, and the accumulated balance of the basic pension insurance fund is expected to be exhausted around 2035. The purpose of this study is to explore the optimization strategy of the development path of urban elderly human resources, to alleviate the pressure of the aging society, and to make full use of the “wisdom dividend” of the elderly. Based on the COM-B behavioral analysis model, a theoretical framework for the development of human resources for the elderly in urban areas is constructed by combining human capital theory, intergenerational support theory and Maslow’s hierarchy of needs theory. Using the 2020 China Health and Aged Care Tracking Survey (CHARLS) data, we screened 1,210 samples of urban under-aged seniors (60-69 years old), used the SMOTE algorithm to deal with the data imbalance problem, and constructed the SMOTE-XGBoost prediction model to assess the degree of development of the elderly’s human resources. The SHAP global explainable model was applied to analyze the influencing factors. The results show that the SMOTE-XGBoost model has a good predictive ability with an AUC value of 0.951; pension income, education, age, intergenerational care, and gender are the five key factors affecting the development of the strength resources of the urban elderly. The study concludes that the optimization of human resources development for the urban elderly should start from four aspects: promoting the concept of reemployment for the younger elderly, promoting vocational education for the elderly through industry-academia cooperation, improving the legal system to provide institutional safeguards, and establishing a national-level human resources development system for the elderly. This study has important theoretical and practical significance for promoting active aging, healthy aging and coping with population aging.
With the improvement of transportation network and the upgrading of consumer demand, rural tourism presents significant spatio-temporal evolution characteristics. In-depth analysis of rural tourism flow characteristics and revealing its spatio-temporal evolution law are of great significance to optimize the regional tourism layout, promote the implementation of rural revitalization strategy, and promote the high-quality development of rural tourism. Based on the rural tourism development data of 31 provinces in mainland China from 2015 to 2023, this study explores the spatio-temporal evolution characteristics of rural tourism flows by using spatial autocorrelation analysis, spatial autoregressive model and spatial trend surface analysis. The results of the study show that: the heat of rural tourism shows an “S”-shaped trajectory of change, with the most rapid growth between 2018 and 2020; the distribution within the year is characterized by “four peaks and four valleys”, with the passenger flow in spring and autumn being larger than that in summer, and the lowest in winter, and the passenger rail transportation volume has a significant positive correlation with the GDP of rural tourism (the coefficient is 2.758, p<0.001). In terms of spatial distribution, the source of rural tourism was “high in the south and low in the north, high in the east and low in the west”, and the Yangtze River Delta, Pearl River Delta, Henan, Anhui and other provinces were the main sources of tourists, and the spatial lag coefficients were 0.232 and 0.252, respectively (p<0.001), which indicated that there was an obvious spatial clustering effect. The robustness test further verifies the robustness of the regression results. It is found that the synergistic development of railroad network and aviation network positively affects rural tourism flows, and with the improvement of transportation conditions, the spatial agglomeration effect of rural tourism source market gradually weakens, and the scope of the source market keeps expanding.
The increase of governmental functions in modern society leads to the increasing number of departments, while the lack of interdepartmental coordination causes administrative inefficiency. This study addresses the problem of multi-departmental coordination in government administration and uses dynamic programming and XGBoost algorithm to construct an assessment model to explore the key factors affecting the coordination of government departments and their role mechanisms. Based on the data from the Spike Good Office platform in Guangdong Province, the study analyzes the effects of four key variables, namely cognitive bias, imbalance of power and responsibility, lack of institutional protection and government support, on the coordination effect. The results show that the XGBoost model has a high-precision prediction ability with an accuracy of 98.13%, an AUC value of 96.37%, and a KS value of 85.24%, which can effectively differentiate the advantages and disadvantages of multi-sectoral coordination effects; the SHAP analysis reveals that cognitive bias has the most significant effect, with an average SHAP value of 0.102458, followed by lack of safeguards and imbalance of power and responsibility, with an average SHAP values of 0.033274 and 0.01894, respectively; partial dependency plots further reveal that the effect of multisectoral coordination is more stable when the cognitive bias is in the 3.0%-3.4% range, the imbalance of power and responsibility is in the 7-10 years range, and government support is greater than 13.5%. The study is of practical guidance for improving the government multisectoral coordination mechanism.
Cancer has become the second largest “killer” threatening human life, and it is expected that by 2030, the number of deaths will exceed 13.1 million per year globally. Adriamycin, as a widely used anticancer drug in clinical practice, faces limitations such as dose-dependent cardiotoxicity and other side effects. In this study, two nanocarrier systems, D-PNAx nanogel and PGFMSN particles, were designed using a simulation-simulation optimization method, characterized by dynamic light scattering method, transmission electron microscopy, and X-ray powder diffraction, and evaluated for drug release properties, biocompatibility, and antitumor effects. The results showed that L-CS-g-PNIPAM nanoparticles had relatively high drug loading (13.6%) and encapsulation rate (75.2%), and the particle sizes were all below 350 nm (275.1±19.2 nm), which were suitable for targeting tumors via EPR effect. pH and temperature responsiveness studies showed that under the condition of the tumor microenvironment (pH 5.0,37°C), 72 hour cumulative drug release rate could reach 85%, which was significantly higher than normal physiological conditions. In vivo antitumor experiments confirmed the targeting and safety of the nanocarrier system. The copper ion content of lung and tumor tissues in the CuS-PEI-siRNA-SFNs group was significantly higher than that in the CuS group, while the hemolysis rate was only 0.1%, which was much lower than that in the CuS group (49.2%). In this study, we successfully constructed a photothermal slow-release nanocarrier system for adriamycin, which provides a new strategy to improve the effect of tumor treatment and reduce drug toxicity.
With the intensification of the contradiction between the increase of oil demand and the scarcity of resources, the development of low-permeability oil and gas fields faces severe challenges. In this paper, the lattice Boltzmann method is used to construct a three-dimensional D3Q19-LBGK model, which takes into account the oil consistency and microscale effect, and corrects the acausal relaxation time to realize the high-precision simulation of the pressure distribution of the oil seepage field. The study shows that compared with the homogeneous soil model, the permeability of the simulation model is significantly reduced, which is about 4.1%-16% of that of the homogeneous soil model, and the permeability difference between different models is obvious, with a maximum difference of nearly four times. The pressure distribution shows the characteristic of “pressure funnel”, which is mainly consumed near the bottom of the well, and the pressure of the coupled seepage field is larger than that of the simple seepage field. Based on the seepage field analysis, a “2+3” layer restructuring scheme was proposed, covering 10.42 million tons of geological reserves, and an injection and extraction well network with a distance of 150m-200m was established to maximize the proportion of wells benefiting from the center. The study shows that the lattice Boltzmann method can accurately simulate the pressure distribution of oil seepage field, provide scientific basis for the development of low-permeability oil and gas fields, and effectively guide the adjustment and optimization of oil field development to improve the recovery rate.
Modern urban planning has gradually shifted from functional zoning to functional mixing, and functional mixing has become a consensus of urban planning. This study explores the mechanism of the influence of urban functional mixing degree on neighborhood and social inclusiveness, adopts the EBM-GML index to measure the total factor productivity of neighborhood and social inclusiveness, and constructs two-way fixed effects and panel threshold models to analyze the relationship between the two. Taking the panel data of City A from 2014 to 2024 as a sample, the study finds that the degree of urban functional mixing is significantly and positively correlated with neighborhood and social inclusiveness, and social inclusiveness grows by 0.099 percentage points for every 1 percentage point increase in the degree of urban functional mixing. The analysis of regional heterogeneity shows that the degree of urban functional mixing contributes most significantly to social inclusion in the western region, with a regression coefficient of 0.169. The dimensional analysis shows that land use is a key factor influencing social inclusion with a regression coefficient of 0.075. The analysis of the threshold effect shows that when the functional mix of the city exceeds the threshold of 221.6352, its facilitating effect is enhanced from 0.092 to 0.111 percentage points. The results of the study have important guiding significance for optimizing urban spatial layout and promoting harmonious urban development, and it is suggested that urban planning should pay attention to functional mixing, optimize the land use structure, and enhance the infrastructure interconnection between different regions, so as to enhance social inclusiveness.
Lightning, as a natural discharge phenomenon, is often accompanied by strong convective weather, which can lead to human and animal casualties, facility damage and economic losses. With the socio-economic development, there is an increasing demand for accurate prediction of lightning distribution. In this study, an empirical orthogonal function (EOF) analysis combined with a geographically weighted regression model is used to analyze the distribution pattern of lightning activity in Fujian Province and to make spatial predictions. The study utilizes the actual monitoring data of Fujian Power Grid LLS for the past 40 years (1982-2021), decomposes the ground flash records into mutually orthogonal spatial eigenvectors and time coefficients based on the EOF method, and analyzes the spatial heterogeneity of the lightning activity using a geographically weighted regression model. The results show that the cumulative variance contribution of the first three modes of the EOF decomposition of thunderstorm days in Fujian Province reaches 75.45%, of which the first mode contributes 57.43%, which is mainly characterized by the negative phase distribution in the province; the overshooting lag correlation coefficient between thunderstorm days and ENSO index is 75.07%, of which the correlation coefficient with the El Niño event is as high as 83.53%, which is significantly higher than the correlation coefficient with the La Niña event (35.79%); the correlation coefficient with the ENSO index is 75.07%. The correlation coefficient with El Niño event is 83.53%, which is significantly higher than that with La Niña event (35.79%); 94.67% of the lightning intensities in Fujian are less than 50 kA, 63.46% of the lightning intensities are less than 15 kA, and the interval with the highest frequency of the lightning current amplitude is 7-17 kA. The study concludes that the lightning activity in Fujian Province is mainly affected by the topographic and climatic factors, and the mountainous and hilly areas are the main hotspot of the lightning activity and there is a significant spatial heterogeneity. The geographically weighted regression model can effectively predict the spatial distribution of lightning in complex terrain.
Traditional teaching methods are difficult to meet the personalized learning needs of students, and the teaching effect is uneven. The application of intelligent algorithms in the field of education provides a new idea to solve this problem, using computer technology to analyze students’ learning characteristics and knowledge mastery to realize the intelligent generation and personalized push of the content of ideological and political education. In this study, we constructed a personalized intelligent grouping model of ideological and political education content based on artificial fish swarm algorithm and a personalized test question recommendation model PMF-CD based on probability matrix decomposition, and verified through experiments that the distribution of knowledge points in the test paper generated by the personalized intelligent grouping model is more targeted and aggregated, while the distribution of knowledge points in the traditional grouping method is more dispersed. In the test question recommendation model test, PMF-CD model in DATASET2 dataset 40% test set conditions of the accuracy rate of 98.26%, much higher than the traditional DINA model of 54.39%. Practical experiments show that the experimental class using the model of this study has a significantly higher level of ideology and morality than the control class in the six dimensions of healthy life, ecological civilization, patriotism, scientific spirit, social responsibility and civic literacy, of which the average value of the experimental class in the dimension of patriotism reaches 4.876, while the control class is 4.372, with a significant difference (P<0.000). The results of the study show that the ideological and political education content generation and personalized push strategy based on intelligent algorithms can effectively improve students' ideological and moral level and provide a new path for the modernization of ideological and political education.
The current lack of comprehensive assessment tools and scientific assessment mechanism in universities makes it difficult to objectively reflect the level of asset management, and it is necessary to establish an assessment system based on the combination of quantitative and qualitative, to promote the modernization of asset management in universities and improve the efficiency of resource utilization. This study constructs a performance assessment and appraisal method for asset management in public colleges and universities, aiming to improve the efficiency of asset management and rationality of resource allocation in colleges and universities. The study firstly constructs an evaluation system containing 5 first-level indicators and 20 third-level indicators including talent training performance and research and education performance, applies hierarchical analysis to determine the subjective weights, CRITIC method to determine the objective weights, realizes the combination of weights based on the weighted least squares method, and finally establishes an evaluation model by combining with the theory of cloud modeling. The case analysis shows that the characteristic parameters of the comprehensive evaluation cloud model for asset management in University A are (71.2563, 1.3652, 0.2365), the risk level is “medium risk”, and the risks of indicators such as academic learning, utilization of instruments and equipment, and external recognition are relatively high. The top three indicators in terms of comprehensive weight ranking are academic learning (0.085), asset income (0.084), and cultural quality (0.082) respectively. Based on the assessment results, the study puts forward three optimization suggestions, namely, strengthening the dynamic monitoring of the assessment process, establishing a smooth complaint and communication channel, and establishing a sound accountability mechanism for the assessment results, so as to provide scientific basis and decision-making support for the asset management of colleges and universities. The assessment model established in this study can effectively reflect the performance status of asset management in universities, which is of practical significance for improving the level of asset management in universities.
Piano as a popular keyboard instrument is not only a solo instrument but also an important accompaniment instrument. This study explores a multi-level accompaniment effect generation method based on temporal data modeling in piano art instruction. The time-frequency transformation of piano audio by constant Q-transform and short-time Fourier transform realizes the timing data modeling, and builds the accompaniment generation model based on the codec structure to solve the problem of generating the accompaniment tracks based on the main melody and maintaining the melodic harmony among the accompaniment tracks. The study adopts the Lookback mechanism to encode the main melody information, and at the same time utilizes the attention mechanism to realize the coordinated representation of inter-track information. The experimental results show that compared with the MuseGAN and MMM models, the model in this paper achieves a coverage of 0.917 on the note length distribution, which is about 20.0% higher than that of MuseGAN, and a coverage of 0.945 on the pitch distribution, which is about 127.2% higher than that of MMM; In the inter-track distance index, the TD value of piano and guitar is reduced to 0.632, which is much lower than that of MMM’s 1.387. The study proves that the model can effectively improve the inter-track harmony while maintaining the quality within the tracks, which is of great significance for the theoretical research and practical application of piano accompaniment.
With the development of the digital economy, residents’ consumption behaviors have become increasingly diverse. This study employs big data analytics to explore the patterns of change in consumer behavior and the pathways of consumption upgrading. Building upon the traditional RFMT model, the study introduces the “T” indicator for recommendation traffic to construct an enhanced RFMT segmentation model. Additionally, the SOM neural network model is improved through optimized learning rate design to enhance training stability and clustering accuracy. Based on the consumption data of 4,158 households, clustering analysis identifies four typical consumer groups: core type, habitual type, supportive type, and general type. By incorporating five individual factors such as city tier, the study finds that the core type represents a growth engine composed of high-net-worth individuals, the habitual type reflects a pragmatic group with stable repurchase behaviors, the supportive type includes highpotential scenario-driven consumers, and the general type consists of price-sensitive long-tail users. Further analysis using eight indicators, including digital technology usage, identifies four consumption behavior types: technology-empowered consumption, interest-driven consumption, socially embedded consumption, and resourceconstrained consumption. The findings reveal that residents’ consumption behaviors are influenced by a combination of factors, with significant differences among consumer groups. The study recommends designing differentiated consumption upgrading strategies tailored to the needs of each group to expand the consumer market and promote high-quality development of the consumption economy.
With the advancement of curriculum reform in colleges and universities, the teaching of wushu faces the problems of time and space limitation, solidified teaching mode and lack of resources. Meanwhile, as a traditional cultural treasure of the Chinese nation, wushu is of great significance to cultivate college students’ moral character, willpower and self-protection ability. In this study, the characteristics of UFC mixed martial arts technical movements were deeply explored through data analysis techniques, which provided scientific references for college students’ martial arts teaching. The study adopts the improved ST-GCN model fused with the spatio-temporal attention mechanism to recognize and analyze the wushu movements, extracts the skeleton joint points through the OpenPose posture estimation technique, and conducts an in-depth analysis of the changes in the center of gravity displacements of the wushu movements based on the Huanglongquan Puffing Wind Palm. The results show that: the accuracy of the improved I-ST-GCN model in recognizing the four movements of punching, side kicking, leg lifting, and squatting reaches 92.03%, which is better than that of the original ST-GCN model of 88.31%; the center of gravity change of Huanglongquan Piao Feng Palm is most significant in the third phase (force generation phase) among the three movement phases, with the value of the change of the center of gravity in the X-axis of 0.814 m; and the fusion of spatio-temporal attention of the Improved ST-GCN model reaches 90.44% in recognition accuracy, which is 6.3 percentage points higher than the traditional model. Based on the results of the study, this paper proposes implementation paths such as optimizing the teaching environment of martial arts, innovating teaching methods, constructing a teaching improvement mechanism and establishing an interactive learning community. The study shows that the data analysis technology can effectively mine the characteristics of wushu technical movements, provide new ideas for wushu teaching in colleges and universities through scientific analysis, and promote the deep integration of wushu education and modern technology.
Education is the foundation for the development of national endeavors. As an important part of China’s education system, undergraduate education is one of the sources that constitute new quality productivity. This study constructs a performance evaluation system for undergraduate education based on principal component analysis (PCA) and data envelopment analysis (DEA), and conducts a systematic research on the innovation of undergraduate education model driven by industry-teaching integration and smart campus system under the framework of new quality productivity. A multidimensional evaluation index system containing educational inputs and educational outputs was first constructed, and the PCA method was applied to downsize the original indexes, streamlining the input indexes into four principal components and the output indexes into three principal components, with the cumulative variance contribution rates reaching 76.37% and 77.59%, respectively. The CCR and BCC models of DEA were then applied to empirically analyze the undergraduate education performance of 12 comprehensive colleges and universities directly under the Ministry of Education. The results show that 6 colleges and universities reach the absolute efficiency of DEA, the average value of comprehensive efficiency is 0.923, and there is a waste of resources of 0.077; the analysis of scale efficiency shows that 2 colleges and universities are in the state of diminishing returns to scale, and 4 colleges and universities are in the state of increasing returns to scale. Through truncated regression modeling, it was found that physical resource inputs have a significant positive facilitating effect on the scale efficiency of undergraduate education in colleges and universities, while teaching and learning support services show a significant negative inhibiting effect. The findings of the study provide decisionmaking references for optimizing the allocation of undergraduate education resources, promoting the deep integration of industry and education, and improving education quality.
Organic electroluminescent diodes (OLEDs) have promising applications in display and lighting due to their high efficiency, ultra-thinness, easy bending, and eye protection. However, charge transport imbalance constrains the further improvement of OLED device performance. In this study, the effects of different co-mingled body ratios on the charge transport mechanism of TADF blue materials were investigated using quantum computational methods to enhance the charge transport and luminescence efficiency of white organic light-emitting diodes (WOLEDs). Through the design of ITO/HAT – CN/HATCN/TAPC/DBA – DI: TCTA: 26 dczppy/Tm3PyP26PyB/Liq/Al structure device, system control TCTA: the proportion of 26 dczppy (1-0, 2:1, 1:1, 1:2, 1-0), the influence of the proportion of the blending main body on the carrier equilibrium was studied. The experimental results show that when the ratio of TCTA:26DCzPPy is 1:1, the device performance is optimized, with a maximum brightness of 11,072 cd/m², a maximum external quantum efficiency (EQE) of 22.56%, and a carrier equilibrium factor γ as high as 0.927, which is significantly better than that of devices with other ratios. Single-carrier device studies have shown that an appropriate ratio of the co-mingled body can simultaneously improve the electron and hole transport ability, optimize the carrier injection path, and promote the balanced distribution of carriers in the luminescent layer. It is shown that charge transport can be effectively balanced by regulating the co-mingled body ratio, which provides a theoretical basis and experimental foundation for the design of high-efficiency WOLED devices.
The frequent occurrence of extreme rainstorms leads to an increase in urban flooding disasters, and flooding damage to power system equipment can cause large-scale power outages, affecting social production and life. This paper discusses the power system recovery and intelligent operation and maintenance equipment scheduling after extreme rainstorms triggering flooding disasters. By constructing a grid fault diagnosis alarm model based on decision tree algorithm, a hierarchical fault information diagnosis algorithm is applied to realize rapid power system recovery. The study utilizes ID3, CART, and C4.5 decision tree algorithms to construct the grid scheduling alarm model, and the experiments show that the C4.5 decision tree model has an accuracy of 96.91% on the training set, which is 2.66% higher than that of the ID3 algorithm; the weighted W-C4.5 decision tree’s accuracy rate for the “safe” state can reach 98.11%, and the recall rate for the “risky” state can be increased to 79.65%. The recall rate for “risky” states increased to 79.65%. The single-factor analysis shows that the load has the greatest influence over the number of risks, with an average K-value of 0.4578. This study provides theoretical foundation and technical support for power system recovery decision-making and intelligent operation and maintenance equipment scheduling under the flooding disaster, and is of great significance for improving the postdisaster recovery capability of urban distribution networks.
With the rise of national health as a national strategy, the health of disabled people as a special group has been increasingly concerned. Rehabilitation sports for the disabled combines rehabilitation medicine and sports, which helps the disabled to treat physical diseases and adjust mental health. In this paper, we explored the method of analyzing the rehabilitation data of disabled people’s sports based on the time series model, which aims to improve the accuracy of predicting the rehabilitation effect and optimize the rehabilitation strategy. The study adopts the ARMA time series model to analyze the rehabilitation data of the disabled, and compares it with the multiple regression model (MRM), stepwise regression model (SRM) and CAR model; at the same time, it constructs a rehabilitation pathway system that includes three dimensions: institutional guarantee, scientific guidance and talent cultivation. The results showed that the maximum residual variance of ARMA time-series model was only 0.21, which was significantly lower than the other three models (MRM:3.40, SRM:3.18, CAR:3.60); the lung capacity of the experimental group was increased from 3008.59 to 3524.51, the BMI index was decreased from 22.95 to 18.89, and all the physical fitness indicators showed significant improvement in the experimental group, and the significant improvement on all of them (P<0.05). The conclusion of the study indicated that the analysis of rehabilitation data based on the time series model has high precision, and the rehabilitation path combining the perfect guarantee system, scientific fitness guidance and complex talent training can effectively improve the physical quality of the disabled and provide scientific basis and practical guidance for the rehabilitation of disabled people's sports.
As an important carrier of revolutionary cultural heritage, Chinese red cartoons have profound political value and practical significance. This study focuses on the application of image enhancement technology to deeply analyze the expression of revolutionary visual symbols in Chinese red cartoons. Based on the theory of the human eye visual system, an image enhancement model containing the characteristics of gray scale distribution, luminance sensitivity and contrast sensitivity is constructed, and an image enhancement method based on visual perception characteristics is designed. The experimental results show that when the color information of the 181°-360° region of the H channel is used as the weight map to improve the image brightness, the AG value can be up to 3.69, which is significantly higher than that of other regions; when the value of the weight value of the S channel is taken in the range of 40-60%, the EME index can be up to 51.66, and the overall quality of the image is improved significantly. By comparing multiple enhancement algorithms, the method proposed in this paper achieves better results in lowlight cartoon image processing. The research results not only contribute to the inheritance of the spirit of red culture, but also provide technical support for the emotional design of red visual symbols and promote the improvement of the visual expression of red cartoons.
Supply chain inventory management faces the problems of inaccurate demand prediction and large inventory fluctuation, and the accurate prediction and optimization method based on spatio-temporal data mining can effectively improve the operational efficiency and decision-making quality. This study constructs a supply chain inventory demand forecasting model and optimizes inventory management through spatio-temporal data mining methods. The study adopts ARIMA model for inventory demand forecasting and combines the system dynamics method to establish the supply chain inventory optimization model. Based on the historical inventory data of a Guangzhou food company (Company A) from January 2012 to December 2023, the data from January 2012 to June 2019 are used as the training set, and the data from July to December 2023 are used as the test set for empirical analysis. The optimal forecasting model is identified as ARIMA(0,1,1) through the series smoothing test, white noise test and model order fixing. The results show that the ARIMA(0,1,1) model performs better in forecasting the first quarter of 2026 with a MAD value of 167 and a MAPE value of 5% compared to the Winters multiplicative model, which has a MAD value of 461 and a MAPE value of 9%. Based on the demand forecasting results, a twolevel supply chain (supplier and retailer) system dynamics model was constructed, containing 10 constant parameters and 27 dynamic variables. The simulation analysis was carried out by VENSIM software for a 50-day cycle, and the optimized model showed that the fluctuation of the inventory curve was reduced, the order quantity decision was more accurate, and the value of the unsatisfied demand was greatly reduced and smoother. The conclusion of the study shows that the demand forecasting and inventory optimization method based on spatiotemporal data mining can effectively reduce the inventory risk and improve the efficiency of supply chain operation, and it is suggested that enterprises should strengthen the construction of the information sharing mechanism, and shorten the supply chain lead time through the optimization of the business process and the delaying strategy.
Agricultural and sideline products in Jilin Province lack distinctive image identity, AI image generation technology provides a new way to create distinctive comic IP characters, which helps to enhance brand value and promote rural revitalization. In this study, we constructed an intelligent image generation model of Multi-shape Generative Adversarial Network (MW-GAN), which contains two parts: style network and geometric shape network, and ensures that the features of agricultural and sideline products are retained through techniques such as identity preserving loss design. The experiment uses a homemade agricultural and by-products caricature dataset (AVPDS), which contains a total of 2,165,496 images of 3,214 agricultural and by-products from 10 angles in Jilin Province. The evaluation results show that the IS index value of the model reaches 94.91, which improves from 7.46% to 41.03% compared with the comparison method; the FID index value is 6.63, which reduces from 6.88% to 26.59% compared with the comparison method. In extreme postures (75° and 90°), the recognition rates reached 85.45% and 77.83%, respectively. The user survey showed that the agricultural and sideline products cartoon IP image value score was 4.319, the brand association score was 4.162, and the brand identity score was 4.285, and the regression analysis confirmed that all three factors had a significant positive impact on rural revitalization. The results of the study show that the design of agricultural and sideline products cartoon IP image based on AI technology can effectively disseminate brand culture, enhance product recognition, and promote the development of rural revitalization.
With the development of Internet technology, cloud computing provides a new way to integrate sports and cultural resources. China-ASEAN folk sports and cultural resources are rich but scattered, and an effective management platform is needed to promote educational exchange and inheritance. This study constructs a ChinaASEAN folklore sports culture education resource management platform based on cloud computing technology, which aims at integrating regional folklore sports culture resources and enhancing the teaching effect. The platform is constructed through the four-layer architecture of cloud computing, and the design of five functional modules, namely, administrator module, teacher’s world, physical education teaching, physical education learning and student’s world, is completed. The experimental results show that: compared with the traditional platform, the resource management efficiency of this platform is increased by more than 45%; in the teaching application, the average score of the students who mastered the folklore sports culture using this platform is increased to 76.03, which is significantly higher than that of the traditional teaching class, which is 69.83; the questionnaire survey shows that 91.95% of the teachers and 90.46% of the students think that this platform can increase the interest in learning sports culture. . The study proves that the resource management platform for folklore sports culture education based on cloud computing technology can effectively improve the utilization rate of resources and the quality of teaching, and provides a new way to promote the inheritance and development of China-ASEAN folklore sports culture.
With the intensification of competition in the business environment, the efficiency of the whole chain response of materials has become the key to the competition of enterprises. The existing logistics network structure is difficult to balance the timeliness and cost. The study constructs a model to improve the response efficiency of the whole chain of materials based on network topology optimization, and explores the balance between the time efficiency of the whole chain response and the cost of network connection. The network topology-based particle swarm optimization (NTPSO) algorithm is used to construct a fast response system for the whole chain of materials, and the optimization ability of the algorithm is improved by the local path index, weighted connection matrix, and multi-subpopulation learning strategy. Case validation shows that among the three optimization schemes, Scheme 1 achieves the lowest cost of 2481.348 yuan, Scheme 8 reaches the shortest response time of 0.948 hours, and Scheme 5 obtains the highest customer satisfaction of 28.798. After the implementation of this model, the 100-min completion rate of the whole-chain response of the materials is stable at about 95%, the task processing time decreases up to 99.58%, and the user satisfaction (NPS) increases up to 6.63%, which proves that the model can be used to improve the quality and efficiency of the whole-chain response. 6.63%, proving that the model effectively solves the balance between time and cost, and significantly improves the efficiency of the whole chain response.
As the complexity of construction projects increases, traditional cost management methods are difficult to meet the demand for accurate control. The combination of multi-intelligence body optimization algorithm and BIM technology provides a new solution path for construction cost management. The study constructs a multi-intelligence body reinforcement learning model through Markov process and time series differential learning, develops a building cost framework deepening design plug-in to realize BIM automated modeling, and proposes annotation collision detection and intelligent annotation methods based on hybrid enclosing box. The results show that the application of BIM technology reduces the building cost consulting cost from 112,872,000 yuan to 60,630,000 yuan, saving 46.3%; the comprehensive benefit score of BIM technology application for the assembly building project of ZX Middle School reaches 83.0945 points, which is in the evaluation range of “comparatively good”, and the construction management benefit score is the highest, which reaches 96.0465 points. The study concludes that the combination of multi-intelligent body optimization algorithm and BIM technology can effectively improve the accuracy of construction cost control, reduce project cost and enhance the level of building design intelligence.
With the rapid development of educational informatization, traditional vocal music teaching faces problems such as lack of personalized teaching resources and single learning evaluation. Through data fusion technology, creating a personalized teaching system for vocal music that integrates audio and text features can effectively improve the teaching effect and learning experience. In this study, the MFCC method is used to extract audio features, the TF-IDF function is used to extract text features, and the EFFC multimodal fusion algorithm based on HMM constraints is designed to realize the effective fusion of the two modalities. The experimental results show that the accuracy of MFCC audio feature extraction reaches 0.972, which is significantly better than other feature extraction methods; the accuracy of HMM-EFFC fusion algorithm is 0.9635, and the F1 value reaches 0.9676, which is better than the comparative algorithm; in the system application test, the accuracy of the judgment of learning interest reaches 98.37%, and the CPU occupancy rate is only 27.53%. The study proves that the personalized teaching system for vocal music based on data fusion algorithm can effectively improve the teaching effect and learning experience, and provides a new idea for the innovation of vocal music teaching.
With the development of natural language processing technology, traditional models face the problems of inefficiency and information loss when processing long sequential texts. The low-dimensional embedding space combined with the self-attention mechanism provides a new direction for optimizing the model, which can capture the text semantic information more efficiently, reduce the computational complexity, and at the same time improve the model’s generalization ability and classification accuracy, so as to provide a more efficient solution for natural language processing. In this study, we propose a natural language processing model based on the self-attention mechanism, which combines PCA and VSM to construct a low-dimensional embedding space, aiming to solve the efficiency problem of traditional models for processing long sequential texts. Methodologically, the model adopts principal component analysis for dimensionality reduction of word vectors, uses BiLSTM network to extract text features, and introduces the self-attention mechanism to give different weights to the text. The experiments are carried out on MRD and SST datasets, and the results show that: the training time on the two datasets using the PCA-VSM model is 107s and 104s respectively, which is much better than other models; the model has the highest accuracy when the cumulative contribution rate of the feature values is 90%; under the optimal parameter configurations, the BLEU metrics of this paper’s model on the MRD and SST datasets respectively reach 0.369 and 0.381, and the Rouge-L metrics are 0.489 and 0.488 respectively, which are significantly better than the other compared models. It is shown that the self-attention mechanism model based on low-dimensional embedding space can effectively improve the performance of natural language processing tasks.
In recent years, the application of virtual simulation technology in the field of education has become more and more extensive, providing new ideas for innovation and entrepreneurship education. This study explores the effect of designing innovation and entrepreneurship education courses using virtual simulation technology on the improvement of students’ innovation ability. Using questionnaire research and platform data collection methods, the research model is constructed in three dimensions, namely, individual learning, course sharing platform learning and teamwork, and the data are analyzed by Bayesian Structural Equation Modeling (BSEM), taking N colleges and universities as an example. The results of the study show that: learning on the course sharing platform has the greatest influence on knowledge acquisition, with a standard regression coefficient of 0.455; the direct influence of teamwork on entrepreneurship (0.189) is greater than that on innovation (0.129); and the influence of knowledge acquisition on innovation (0.744) is significantly higher than that on entrepreneurship (0.737). It is found that the innovation and entrepreneurship course design created by virtual simulation technology can effectively improve students’ ability to solve practical problems, based on this, we put forward three suggestions, namely, clarifying the functional positioning, improving teachers’ ability and building a virtual simulation platform. This study provides practical reference for innovation and entrepreneurship education in colleges and universities, confirms the positive role of virtual simulation technology in entrepreneurship education, and is a revelation for innovation and entrepreneurship education reform.
Digital libraries, as information resource sharing platforms, face severe challenges of data security and copyright protection. In this paper, we propose a DCT-Schur based digital watermarking encryption scheme to realize the security protection of digital resources through the combination of discrete cosine transform, Schur matrix decomposition and Logistic chaotic mapping. The scheme constructs the watermark embedding process from six links: watermark preprocessing, DCT transform, carrier image chunking, Schur matrix decomposition, watermark feature embedding and carrier image restoration, and controls the extraction and decryption restoration of watermarked signals through key sequences. The experimental results show that the scheme has good invisibility, and the PSNR values of the images after embedding the watermark are all greater than 45.0 dB, and the SSIM coefficients are all more than 0.993. In terms of robustness, the scheme can effectively resist all kinds of attacks, and the NC value of the extracted watermark still reaches 0.9663 even under the attack of rotating 10°; the NC value under the attack of shearing 1/4 stays above 0.9908, which is significantly better than the existing methods. This scheme performs well in balancing watermark invisibility and robustness against attacks, and provides an effective solution for data security design and copyright protection in digital libraries.
The rapid development of industrial Internet has given rise to a large number of real-time computing demands, and traditional cloud computing cannot meet the low-latency requirements, while the cloud-edge cooperative architecture integrates the advantages of high computing power in the cloud and low latency at the edge, which has become an effective solution for resource scheduling in industrial Internet. In this paper, we design an optimization model for industrial Internet resource scheduling based on cloud-edge cooperative architecture, which realizes the cooperative processing of data and computation by integrating cloud computing and edge computing technologies. Firstly, an independent task resource scheduling model is constructed, and three evaluation indexes, namely, computing time, energy consumption and throughput rate, are defined; then a path planning method based on DDPG and a multilevel resource scheduling model at the cloud-edge end are designed to realize optimal allocation of tasks among multilevel resources. Simulation results show that the proposed CMRS model tends to converge at the 310th iteration, and the convergence speed is 30 iterations faster than GA-DDPG, and the reward value at convergence reaches -12.9, which is better than GA-DDPG’s -17.1. In terms of cache hit rate, the CMRS model is significantly higher than the comparison algorithm. The performance evaluation shows that the CMRS model achieves lower total system overhead and task processing latency when dealing with tasks of different complexity and different data volumes, proving that the model is able to effectively improve resource utilization and quality of service in the industrial Internet environment.
There is a significant trend of diversification in the development of vocational education students, and the traditional prediction methods have insufficient accuracy to meet the needs of personalized learning. The support vector machine algorithm has a unique advantage in the prediction of small-sample high-dimensional data, which provides a new idea to solve this problem. In this study, we constructed a support vector machine prediction model based on the optimization of differential evolution algorithm, and explored the methods of predicting the development trend of vocational education students and personalized learning path planning. The study adopts SVM algorithm to deal with nonlinear high-dimensional data, introduces differential evolution algorithm to solve the problem of SVM parameter selection, and realizes regression prediction through insensitive loss function. The experiment selects 500 sample data for training and 60 sample data for testing, and the student development trend prediction model reaches the accuracy requirement of absolute error limit value 1 after 115 steps of training. An empirical study was conducted on 804 valid student data of a vocational college, and the overall accuracy of the prediction model reached 98.13%, of which the highest accuracy was 94.3% for the item of “employment” and 91.6% for the item of “higher education”. The results of this study show that the student development prediction model based on support vector machines can effectively predict the development direction of vocational education students and provide data support for vocational colleges to develop personalized learning paths. The study further proposes a personalized learning path design framework, including four key aspects: data collection and management, learning portrait and demand orientation, learning goal and path planning, and learning resources and support services construction, to provide precise guidance for vocational education students’ development.
Biomechanical characteristics in sports have an important impact on teaching effect. This paper analyzes the changes of biomechanical parameters of athletes under different fatigue states through high-performance computing simulation to provide scientific basis for improving physical education and preventing sports injuries. In this study, a human musculoskeletal model was established by Anybody biomechanical simulation software, and 30 male athletes were selected as subjects, divided into 15 in the experimental group (FAI group) and 15 in the control group, and the biomechanical characteristics of lower limb joints were tested in different fatigue states (no fatigue, moderate fatigue and severe fatigue). The results of the study showed that the knee and hip flexion angles decreased significantly in the fatigue state, and the knee flexion angle at the initial touchdown moment decreased from 20.75±9.72° in the no-fatigue state to 16.94±10.24° in the severe fatigue state, and the peak knee extension moment decreased from 2.76±0.15N-m/kg in the no-fatigue state to 2.12±0.15N-m/kg in the moderate fatigue state, the vertical stiffness decreased from 58.73±14.34KN/m in the no-fatigue state to 46.47±10.45KN/m in the severe fatigue state, and there was no significant difference in the ground reaction force parameters before and after fatigue. The conclusion of the study shows that the biomechanical characteristics of the lower limbs in the state of sports fatigue change significantly, and this change may be a reflection of the human body’s own protective mechanism, and by reasonably adjusting the training intensity and fatigue management can optimize the effect of physical education and reduce the risk of sports injuries.
English children’s literature, as an important resource for elementary school English education, has distinctive regional, national and multicultural characteristics. This study adopts the LDA theme model to mine the themes of English children’s literature since the 1970s, and verifies its teaching effect through a semester-long teaching experiment. The results show that the themes of English children’s literature can be summarized into four categories: love, romance, growth and pursuit; after the introduction of English children’s literature, the English writing scores of students in the experimental class increased from 62.18±5.87 to 81.64±3.76, and the total number of words in writing increased from 98.54 to 132.85, whereas those of the control class only increased from 62.27±6.81 to 64.76±5.94 points; the mean value of English learning interest of the students in the experimental class increased from 2.15 to 3.28 points, and the vocabulary learning interest, reading learning interest and classroom participation motivation increased significantly (p<0.05). Conclusion: The thematic distribution of English children's literature based on statistical model mining provides a scientific basis for the selection of educational content; the targeted integration of English children's literature into elementary school English teaching can effectively improve students' English writing ability and learning interest, and promote the quality of elementary school English education.
Precise control of pitch variation in double bass playing has a decisive impact on musical expressiveness. Traditional analysis methods are difficult to accurately capture their complex patterns and require advanced algorithmic support. This study explores the application of support vector regression modeling in the analysis of pitch change patterns in double bass performance. By establishing a particle swarm optimized support vector regression (PSO-SVR) prediction model, we compare and analyze the pitch change characteristics under different bowing methods and propose a performance optimization method. The study firstly adopts the radial basis function as the kernel function, and uses the particle swarm algorithm to optimize the parameters of the SVR model, and obtains the optimal value of the penalty factor as 37.5431, and the optimal value of the kernel function kernel width parameter as 0.2876. The experimental results show that the PSO-SVR model has the mean squared error (MSE) of 0.0671 on the test samples, the coefficient of determination (R²) reaches 0.9415, and the average absolute error (MAE) is 0.2114, and the prediction performance is significantly better than the random forest model and the standard SVR model. Through the case study, the model was successfully applied to visualize and analyze the performance details of “The Morning of Miaoling”, revealing the mechanism of the influence of different playing techniques on the timbre effect. The results provide a quantitative basis for the optimization of double bass playing techniques, which has important theoretical value and practical significance.
Complex and diverse topography and frequent lightning activities in Inner Mongolia pose a serious threat to agricultural production and infrastructure safety. Based on geographic information system and spatial interpolation techniques, this study explores the correlation between lightning activity and terrain features in Inner Mongolia and establishes an accurate prediction model. The study adopts the improved DBSCAN algorithm to cluster lightning activities, combines the kernel density estimation to adaptively determine the clustering parameters, utilizes kriging interpolation to determine the lightning fall area, and fits the thunderstorm movement trajectory through the least squares method. The experimental results show that the improved DBSCAN algorithm has an average offset error of 1.16 km on thundercloud center of mass prediction, which is significantly better than the linear extrapolation method (1.92 km) and the least squares method (3.09 km). The prediction accuracy is more than 80% and the false alarm rate is controlled below 40%. The topographic analysis found that the frequency of intensity lightning is highest on the northeast slope; the influence of slope on lightning density decreases gradually with the increase of lightning intensity, and Class I to III lightning is prone to occur on steep slopes. The study can provide scientific basis for the layout of lightning protection facilities, lightning disaster risk assessment and early warning in Inner Mongolia, and has practical application value for enhancing regional disaster prevention and mitigation capability.
Higher vocational hotel management profession has strong applicability characteristics and high requirements for comprehensive ability of talents. At present, the practical training conditions of most institutions cannot meet the needs of real hotels, resulting in the gap between students’ abilities and enterprises’ demands. Although the prospect of school-enterprise integration is promising, the cooperation is often superficial due to the differences in the values of both sides and the lack of performance evaluation mechanism. In this study, an evaluation index system based on the CIPP model is constructed to assess the performance of school-enterprise integration in higher vocational hotel management majors. The study applies the rooting theory to code and analyze 200 pieces of literature to form 4 first-level indicators and 16 second-level indicators, adopts the hierarchical analysis method to determine the weights of the indicators, in which the input evaluation has the highest weight (0.3377) and the background evaluation is the second highest (0.3224), applies the fuzzy comprehensive evaluation method to carry out empirical analysis on a higher vocational hospitality management major, and the comprehensive evaluation score is 86.91 points. The study further used the fsQCA method to identify four grouped paths to achieve high performance, with an overall coverage of 0.796. The results showed that: building a dual-teacher team (weight 0.3181) and the degree of perfection of the cooperation mechanism (weight 0.1352) were the key factors affecting the performance of school-enterprise integration, the path with the participation of a large enterprise and a perfect project implementation process had the highest coverage (0.488). This study provides a systematic evaluation tool and improvement path for school-enterprise integration in higher vocational hotel management program.
Transmission lines often pass through mountainous and hilly areas with complex topography, where extreme climate and complex landscape lead to ice-covered lines, foreign objects and other faults, which threaten the safe operation of power grids. In this paper, for the problems of small target detection difficulty and insufficient multidimensional data fusion in transmission line hidden danger monitoring, a transmission line hidden danger monitoring method based on improved deep neural network is proposed. In the method, three key improvements are made on the basis of the YOLOX model: firstly, the loss function is improved, and the combination of IOU logarithmic operation and power function operation is used to enhance the punishment of difficult samples; secondly, the CBAM attention mechanism is introduced in the P2 layer of the backbone network to enhance the model’s ability to perceive small targets; finally, the upsampling structure is added to the neck network to promote the deep semantic information and shallow representation information fusion. The experimental results show that the improved model achieves an average accuracy mean value of 98.61% on the transmission line hazards dataset, which is 12.07% higher than that of the original YOLOX algorithm; the detection speed reaches 46.47 images per second, which is an improvement of 8.06 images per second; the size of the model is 148.81 MB, which is a reduction of 3.33 MB; and the training time increases by only 0.38 hours. The method effectively improves the accuracy and real-time performance of transmission line hazard monitoring, and provides a new technical support for power grid safety monitoring in multi-dimensional data environment.
Travel-related content on social media platforms is exploding, and there are significant differences in travel behaviors and preference expressions among tourists from different cultural backgrounds. This study integrates text mining techniques and K-nearest neighbor algorithm to cross-culturally analyze travel data on social media platforms and predict tourists’ preferences. The study crawled 3500 travel tips from Poor Traveler and GoWhere.com, and obtained 3000 valid data after cleaning. The TF-IDF algorithm is used to extract 50 highfrequency feature words, and the correlation matrix is constructed through the Ochiai coefficient, and the hierarchical clustering method is used to classify the tourism behaviors into three major categories and seven subclasses, namely, scenic area unique resource perception, entertainment experience behavior, and facility and service appeals. Meanwhile, an improved KNN algorithm based on vector orthogonalization and updated out-ofsample prediction method is proposed to predict the passenger flow at subway stations in A city. The results show that the average time-sharing prediction error of the whole network under 5-minute time granularity is 11.64%, and the cumulative all-day prediction error is 2.37%, and the prediction accuracy of the model is significantly better than that of the traditional method. The study found that more than 90% of the successfully matched samples were within one year before the prediction date, and the prediction accuracy was higher at the sites with higher passenger flow. This study provides an effective cross-cultural analysis framework and tourist preference prediction tool for the tourism industry, which can help companies develop accurate marketing strategies and personalized service plans.
Basketball as a high-intensity confrontational sport, athletes’ psychological quality directly affects competitive performance. In this study, we propose a multi-physiological signal fusion detection method based on support vector machine algorithm to address the difficulty of detecting anxiety in the same-court confrontation of basketball players. METHODS: Electroencephalography (EEG), electromyography (EMG) and electrodermal (EDA) signals were collected from 10 basketball players, and 1000 sets of data samples were obtained by watching different emotion-evoking videos. The Relief algorithm was utilized for feature selection to reduce the original 100- dimensional features to key features, and combined with support vector machine and least squares support vector machine for classification and recognition. RESULTS: The Relief-SVM algorithm reduced the EEG EMG fusion features from 30 to 15 dimensions, and the recognition rate of anxiety reached 83.355%, which was 9.121% and 9.357% higher than that of EEG and EMG alone, respectively. The three-signal fusion of ECG, EMG, and SCL improved the recognition accuracy from 79.58% to 92.65% after feature selection by SBFS. CONCLUSION: The multi-physiological signal fusion method effectively improves the anxiety detection accuracy, and the support vector machine algorithm performs well in processing small-sample high-dimensional data. The method can realize realtime monitoring of basketball players’ anxiety and provide technical support for scientific adjustment of training tasks.
Youth sports training is crucial for physical development, and Internet of Things (IoT) technology can realize scientific training, but it faces challenges such as high-dimensional data, noise interference, and unreasonable training intensity, so it is necessary to explore the data fusion model with higher adaptability to improve the training effect. This study proposes an adaptive bat algorithm optimized fuzzy clustering algorithm model for the characteristics of youth sports training data in the IoT environment. The model effectively avoids the problem that the traditional fuzzy C-mean clustering algorithm is prone to fall into local optimization by improving the velocity update formula in the bat algorithm and introducing the inertia weight coefficient adjustment mechanism based on the distribution entropy and average bit distance. Through the validation on the Iris and Wine datasets of UCI database, the results show that the clustering correct rate of this algorithm on the Iris dataset reaches 96.24%, which is 6.87% and 3.57% higher than that of the traditional FCM algorithm and GAKFCM algorithm, respectively, and that the correct rate on the Wine dataset reaches 94.76%, which is also better than that of the other two algorithms. Applying this algorithm to the analysis of 35,659 adolescents’ exercise behavior data, the algorithm successfully classified them into five class clusters and identified that 34.47% of the adolescents had regular exercise habits, 19.92% belonged to the category of frequent exercise but very seldom attendance, and only 10.02% hardly exercised. In the comparison of evaluation metrics, the proposed algorithm reaches 75.46%, which is significantly higher than 63.36% for K-Means and 67.23% for K-Means++. The study shows that the fuzzy clustering model optimized by the proposed adaptive bat algorithm can effectively deal with the complex data of youth sports training in the IoT environment, providing a reliable tool for data mining and personalized training program development.
Currently, there are obvious regional differences in the allocation of labor education resources, and the efficiency evaluation method is relatively single and lacks a systematic and scientific evaluation system, which makes it difficult to accurately reflect the effectiveness of the implementation of labor education, and restricts the balanced development of labor education and the overall efficiency improvement. This study constructed a labor education evaluation system based on the data envelopment analysis method, and analyzed the efficiency of labor education resource allocation and its influencing factors by selecting 259 relevant data across the country as samples from 2018-2024, using the DEA-BCC model and Malmquist index. The results show that: the mean value of the national labor education resource allocation efficiency in 2018-2024 is 1.083, indicating that the overall efficiency is effective but at a low level; regional differences are significant, with the highest efficiency in the western region (mean 1.353), followed by the central region (mean 1.001), and the lowest in the eastern region (mean 0.849); the efficiency of the allocation of labor education resources in each region has stability and persistence. Effective regions accounted for 58.1% of the total, showing that most regions still have room for improvement. Malmquist index analysis showed that total factor productivity improved in most regions, and the technical progress index improved rapidly after 2021. The analysis of influencing factors found that the number of regional schools, the number of international cooperative research dispatches and the efficiency of labor education are significantly positively correlated, and the proportion of illiterate population is significantly negatively correlated. This study provides theoretical support and practical reference for optimizing the allocation of labor education resources and improving the evaluation system.
With the development of information technology, computer-assisted language learning plays an increasingly important role in English teaching in colleges and universities. Traditional English teaching methods have problems such as insufficient interactivity and low degree of personalization, while computer-assisted teaching can provide a more flexible and diverse learning environment. In this study, a speech enhancement algorithm based on improved CTF-GSC and posterior Wiener filtering is proposed for the speech enhancement problem in computerassisted language learning and applied to the practice of English teaching in colleges and universities. Methodologically, the basic principle of Wiener filtering is first analyzed, and it is proposed to optimize the Wiener filtering enhancement effect by combining the wavelet thresholding multi-window spectral estimation algorithm with the VAD algorithm; Second, the VSS-NLMS algorithm is introduced to improve the CTF-GSC algorithm to further enhance the speech enhancement effect; Finally, two teaching modes, interactive and collaborative, were designed to realize a new model of computer-assisted English teaching in colleges and universities. The experimental results show that under Gaussian white noise environment, the speech enhancement algorithm proposed in this study improves the signal-to-noise ratio to 32.0173 dB, which is 20.5848 dB and 15.9994 dB higher than the spectral subtraction method and the traditional Wiener filtering algorithm, respectively; the improved algorithm obtains an average score of 4.02 in the subjective scoring test, which is higher than the other comparative algorithms; and in the actual teaching application, the experimental class students’ English scores on the posttest mean improved by 3.2 points over the pretest, while the control class only improved by 1.44 points. The study shows that the model of integrating computer-assisted language learning and traditional pedagogy can effectively improve the quality of speech and the effect of English teaching, which provides new ideas and methods for the reform of English teaching in colleges and universities.
The traditional human resource management model is difficult to meet the development needs of the digital economy era, and enterprises urgently need to build a digital and intelligent human resource management system. Meanwhile, the integrated integration of assessment and training is of great significance for improving talent management efficiency and optimizing resource allocation. Based on Bayesian network theory, this study constructs a collaborative optimization analysis model for the integration of digitalization of enterprise human resource management and assessment and training. First, an evaluation index system covering five dimensions of human resource planning, recruitment and allocation, training and development, performance management, and labor relations management is established, the causal relationship between the influencing factors is determined by using the explanatory structure model, and the parameters of the Bayesian network are determined by using the maximum a posteriori estimation method. Then, through empirical analysis of 260 human resource management cases, it was found that the probability of safety problems in human resource planning was as high as 82%, and the probability of contract management and employee health and safety was 76% and 77%, respectively. The results show that the system’s integrated co-optimization effect peaks at around 100 hours during the co-optimization process, followed by a second peak at 177 hours. The study verifies the effectiveness of Bayesian network in identifying key influencing factors and evaluating synergistic effects, and provides a scientific decision support tool for enterprises to promote the digital transformation of human resource management.
Employee performance assessment, as a core part of enterprise human resource management, has a direct impact on the operational efficiency and competitiveness of enterprises in terms of its accuracy and scientificity. This study proposes a comprehensive assessment model based on fuzzy logic and network analysis method (ANP) to address the complexity and ambiguity of enterprise employee performance assessment. The study first utilizes the ANP method to construct an assessment system with 12 indicators including 3 dimensions of work attitude, work ability and work performance, and determines the weights of each indicator through an expert questionnaire. Among them, work performance has the highest weight of 0.3964, work ability is the second highest of 0.3321, and work attitude is relatively low of 0.2721; among the specific indexes, sense of responsibility (0.1781), planning and efficiency (0.2171), and work progress (0.2943) occupy the first place among the dimensions respectively. The study used Mamdani-type fuzzy inference system, designed three fuzzy linguistic variables, established 27 fuzzy rule bases, and evaluated the employees of 10 service companies through Matlab/Simulink simulation platform. The results show that the comprehensive evaluation value of the planning and efficiency index is the highest at 59.65, learning and enterprising and commanding and managing are ranked second and third respectively, and the work progress is the lowest at 29.99. The study shows that the method effectively reduces the subjectivity of the evaluation process, improves the scientificity and operability of the evaluation, and provides decision-making support for the enterprises to formulate the employee motivation strategy.
There are strong coupling relationships among temperature, pressure, flow rate and other parameters in the process of human specimen fluid exchange, which are easily affected by external disturbances, leading to the decrease of control accuracy and response lag. In this paper, a real-time adaptive regulation method based on fuzzy control theory for human specimen liquid exchange process is proposed to solve the problems of poor stability and weak anti-interference ability of traditional PID control when facing a nonlinear, multivariable coupled system. The study designed a two-input and three-output fuzzy adaptive PID controller to adjust the PID parameters in real time with the error and its derivatives as the control inputs, at the same time, the hybrid adaptive particle swarm algorithm (HAPSO) was proposed to optimize the parameters of the fuzzy controller through the introduction of the relative evolution factor and the particle diversity factor, and combined with the optimization strategy of the small living environment. Simulation results show that the HAPSO-optimized fuzzy adaptive PID control system reduces the overshooting amount from 10% to 3.5%, the stabilization time from 21 s to 17 s, and the liquid level fluctuation range from 18 cm to 6 cm compared with the traditional PID control system. In addition, the optimized system can be quickly stabilized at 16 °C and keep smaller fluctuation when the external environment changes in the temperature control test, which showing excellent robustness. The study proves that the adaptive regulation method based on fuzzy control theory and HAPSO optimization can effectively improve the control accuracy and stability of the human specimen liquid exchange process, which provides a new technical solution for the automation control in related fields.
In the era of digital economy, the rural revitalization strategy has an urgent demand for composite talents, but the existing talent training mode is difficult to accurately match the industrial demand. The traditional cultivation method lacks in-depth analysis of the multidimensional characteristics of talents, and the construction of interdisciplinary cultivation platform is lagging behind. This study builds an interdisciplinary platform for rural revitalization talent cultivation based on big data analysis and multiple intelligence theory. TF-IDF algorithm and Kmeans clustering analysis are used to data mine 30 job samples from five major recruitment platforms to establish a talent portrait model with a two-dimensional multi-level labeling system. Through genetic optimization FCM algorithm for clustering analysis, the rural revitalization talents are classified into three types of prototypes: professional and technical, operation and management, and local return type. Develop an interdisciplinary digital learning platform based on ASP.NET Core framework to realize the functions of talent demand display, skill learning and data visualization. Taking 345 students of Ningbo Future Country College as the survey object, a five-level Likert scale was used to assess the effect of the platform. The results show that the questionnaire reliability coefficient of 0.884 and the KMO value of 0.904 meet high standards, 46.96% of the students are satisfied with the teacher interaction, 43.48% think that the course content is streamlined and efficient, and 40.87% say that they can absorb more than 75% of the lecture content. The study provides a theoretical basis and practical path for the precise cultivation of rural revitalization talents.
Market forecasting capability, as an important ability for enterprises to gain insight into changes in the external environment, directly affects the quality of strategic decisions. However, existing studies have not explored enough the mechanism of how market forecasting capability specifically affects the accuracy of strategic decisions, and lack a systematic quantitative analysis method. In this study, the ACO-MPSO association rule mining algorithm is designed by combining the ant colony optimization algorithm and particle swarm optimization algorithm and introducing the Metropolis mechanism. 1640 data of A-share listed companies in the manufacturing industry from 2016 to 2023 are selected, a decision table containing 25 conditional attributes is constructed, and the new algorithm is applied to mine the association rules of market forecasting ability and strategic decision precision. The results show that: when the enterprise market prediction ability is strong, 12 high strategic decision precision rules are mined, with an average accuracy of 90.4%; compared with the traditional Apriori algorithm, the ACO-MPSO algorithm completes the mining in only 15.84 seconds under the 45% support threshold, which is a 42% improvement in the efficiency; and the validation of the test set shows that the overall classification accuracy of the rules is 84.2%. Among them, the classification accuracy for high-precision samples reaches 93.16%. It is found that policy sensitivity, data accuracy, and resource endowment fulfillment are the key factors to promote high strategic decision-making accuracy, and the improvement of enterprise market forecasting ability can significantly enhance strategic decision-making accuracy.
Scientific analysis of oil painting color by combining machine learning technology has become an important direction for the integration of art and technology, which provides new technical support for improving the quality of art teaching. This study combines the Gradient Boosted Decision Tree (GBDT) algorithm to deeply analyze the color features of oil paintings and explore its practical application in art teaching. Methodologically, the oil painting color prediction model based on GBDT is constructed, and the key factors affecting oil painting color are ranked in importance and visualized by SHAP interpretation method. At the same time, UV light-curing ink printing experiments were carried out on corrugated paper and gray-backed white board paper to establish the CIELAB color spatial relationship model for different paper substrates. The results show that the GBDT model outperforms the other six mainstream algorithms in terms of prediction accuracy, with an accuracy of 0.851 and an AUC value of 0.933. The SHAP analysis indicates that the color particle size, color type, canvas texture, pigment layer thickness, and the surrounding environment color are the top five key factors affecting the color of oil paintings. Printing experiments confirmed that there is a significant difference in the color rendering effect of ink on corrugated paper and gray background whiteboard paper, corrugated paper brightness is only 13% while the color deviation value is as high as 20%. The research results provide scientific support for the teaching of oil painting color in university art majors, and through the introduction of multimedia teaching methods and curriculum system reform, students’ color perception and creative ability are effectively improved.
Digital transformation has a profound impact on higher education, and the training of business administration professionals faces new challenges. The demand of enterprises for business administration talents has undergone structural changes, requiring digital literacy and innovation ability. This study constructs a curriculum system for business administration majors based on learning path mining algorithm under digital talent cultivation mode. Methodologically, the traditional DINA model is improved, reaction time parameters are introduced, and a reparameterized DINA model is established; a core literacy assessment framework containing cognitive model construction, Q matrix establishment, data collection, and diagnostic output is designed; potential knowledge states are identified through clustering analysis, and learning paths are portrayed. The results show that for the test of 379 business administration students, the average score is 12.665, the probability of mastering organization management (A1) reaches 0.9, and human resource management (A4) is only 0.4; clustering analysis yields 8 categories of knowledge states, with KS3 accounting for 30.08% as the most; 4 complete learning paths are identified, with path 2 covering 226 people accounting for 59.6%. The conclusion shows that the improved cognitive diagnostic model can effectively identify the differences in students’ knowledge mastery, and the learning path mining provides the basis for personalized teaching; accordingly, it proposes the constructive strategies of reconstructing the curriculum system, preparing the syllabus, and realizing the theoretical-practical docking to push forward the reform of digital talent cultivation for business administration majors.
Existing methods for assessing interaction behavior in programming games for young children have problems such as insufficient accuracy and lack of systematicity. How to scientifically assess the interaction behavior of young children in programming games and accurately grasp the characteristics of teacher-student verbal interaction has become the key to improving the quality of early childhood programming education. In this paper, we constructed an evaluation index system for the interaction behavior of programming games for 0-6 years old children, and proposed an evaluation model based on the Improved Particle Swarm Algorithm Optimized Radial Basis Neural Network (IPSO-RBF). The system contains two primary indicators, teacher speech behavior and student speech behavior, subdivided into 12 secondary indicators. Methodologically, nonlinear dynamic inertia weights and dynamic learning factors are used to improve the traditional PSO algorithm and optimize the width and weight parameters of the RBF neural network. The model performance is verified by 200 sets of training samples and 50 sets of test samples, and the results show that the test correct rate of IPSO-RBF neural network reaches 96%, and the average value of MSE is 0.121, which is significantly better than the 89.7% correct rate and 0.355 MSE value of PSO-RBF. Eleven programming teaching activities for 60 young children were analyzed for three types of instructional models: didactic, demonstrative, and socially constructive, and it was found that demonstrative classrooms had the highest number of significant sequences (27), followed by socially constructive (24), and didactic had the fewest (14). This study provides an effective tool for assessing the quality of early childhood programming education and is an important reference for optimizing teaching strategies.
The relationship between students’ psychological changes and athletic performance in physical education has an important impact on teaching quality. Traditional research methods are difficult to accurately portray this complex nonlinear relationship. In this study, a Bayesian network model was constructed based on the improved MMHC algorithm to analyze the association between students’ psychological changes and sports performance in physical education. A stratified whole group sampling method was used to collect data from 2,480 students from 32 high schools in 16 cities in Shandong Province, using the Canadian Assessment of Physical Literacy Questionnaire (CAPL-2) and the Symptom Self-Rating Scale (ACL-90). The traditional Bayesian network was optimized by the event extraction algorithm with the improved MMHC algorithm to establish a network topology containing 17 measures. The results showed that the model prediction accuracy reached 90.37%, and the number of days of participation in moderate- and high-intensity activities in a week had the greatest impact on the mental health level, with a decrease of 9%. Sensitivity analysis showed that four factors, including the definition of health, safe behavior in performing physical activity, the correct way to improve motor function, and the time required to perform physical activity daily, were the sensitivity factors. The study reveals the causal chain of motivation and confidence → knowledge and understanding → daily behavior → mental health level, which provides theoretical support for the reform of physical education.
Music education in colleges and universities is transforming towards digitalization and intelligence, and piano teaching, as the core curriculum of music education, faces the demand for technological innovation. Traditional piano teaching relies on teachers’ subjective judgment in terms of hand shape correction and technique training, and lacks objective quantitative standards. This study constructs a piano technique training optimization system based on computer vision technology, aiming to improve the scientificity and accuracy of piano teaching in colleges and universities. Firstly, the piano string vibration equation model is established to analyze the acoustic features such as pitch and overtones; secondly, MEMS inertial sensors and infrared detection rods are used to collect the playing gesture data, and the fusion of fixed posture is realized by the IU-EKF algorithm; then, the VGG- 16 deep learning model is used to extract the statistical features in time domain, spatial characteristics, finger coupling features and auxiliary features, and to realize the recognition of hand gestures; and finally, the Magic King is performed in different playing versions. The speed-strength visualization analysis is carried out for different playing versions. The results show that the average values of finger angle measurements are 147.92°, 136.03° and 117.15°, respectively, with a maximum error of only 2.73%; the maximum angular difference between the three paths of finger movement is only 2.6 degrees; the velocity calibration method effectively matches the finger sliding and rebounding velocities within the 95% confidence interval; and the predicted values of the music skill evaluation model are highly consistent with the actual values. The system proposed in this study can accurately identify piano playing gestures, provide objective quantitative indexes for piano technique training, and put forward optimization measures from three dimensions: fingering practice, technical difficulty attack, and experience learning, which is of great significance to promote the modernization of piano education in colleges and universities.
The microscopic heat transfer mechanism of metallurgical materials has a significant impact on the material properties, and the traditional numerical methods are difficult to deal with complex boundary conditions and multi-scale heat transfer problems. In this paper, the lattice Boltzmann method (LBM) is adopted to study the microscopic heat transfer mechanism of metallurgical materials, and a large-vortex simulation framework based on the D3Q19 model is established, and the coupling of the phase field method and the lattice Boltzmann method (PFLBM) is realized. The study simplifies the Boltzmann equation through the BGK collision operator, introduces the Smagorinsky sublattice model to deal with turbulence, and employs the bounce format and the nonequilibrium extrapolation format to deal with boundary conditions. The flow field, temperature field, solute field and phase field are coupled to realize the multi-field coupled simulation in micro-macroscopic scale. The results show that in the simulation of heat transfer power loss of the torque converter, the simulated value of 15.62 kW agrees well with the experimental value of 16.82 kW when the rotational speed is 1600 r/min; in the simulation of discontinuous heat transfer in nanoscale, the D2Q37 lattice model effectively overcomes the internal unphysical temperature jump effect and the boundary accuracy is improved by 27% when Kn = 0.42. The conclusion confirms that the method can accurately simulate the heat transfer process of metallurgical materials at different scales, which provides a theoretical basis for optimizing the thermal properties of materials.
Subsurface fluid stratified sampling techniques have important applications in pollution monitoring in agriculture, industry and mining. The traditional sampling device has problems such as difficulty in going down the well, limited sampling depth, and silt clogging. This study proposes a new strategy to optimize the design of subsurface fluid stratified sampling device based on intelligent algorithm. The basic framework of fluid simulation is constructed by using the Navier-Stokes system of equations and the Eulerian mesh method, and a size function based on the combination of fluid surface distance and solid surface distance is designed to realize adaptive stratified sampling. The internal flow channel design of the sampling device is optimized by particle classification, splitting and merging operations. The results show that: different screen porosity (0.4-0.8) has a significant effect on the total pressure of the internal flow channel of the sampler, and the total pressure at the front end of the screen increases with the increase of the pressure drop; the maximum difference between the dryness of the split fluid and the inlet dryness is not more than 2.5%, which proves that the split fluid has a good representativeness; the split coefficients of the liquid phase and the gas phase are larger than the theoretical values in general, and they are gradually close to and tend to be stabilized with the increase of the discounted flow rate of the liquid phase; When the oil content exceeds 50%, the gas-phase partition coefficient decreases about 8%, and the average uncertainty of the total flow rate does not exceed 3.55%. The shallow U-tube layered sampling device developed based on the research results has been successfully applied in several oilfield CCS projects, realizing integrated water and gas sampling and one-hole multilayer sampling functions, which significantly improves the efficiency and accuracy of subsurface fluid sampling.
Traditional power system faces problems such as data dispersion, low monitoring efficiency, and insufficient prediction accuracy. The development of 3D visualization technology and artificial intelligence provides new ideas for grid operation status monitoring and fault prediction, and the realization of intuitive display and intelligent analysis of grid information has become a demand for the development of the industry. In this paper, a grid panoramic display platform is constructed based on the information integration method of SOA architecture, and a grid operation state monitoring and prediction model is designed by using convolutional neural network (CNN), which is combined with three-dimensional visualization technology to realize smart grid monitoring. In the data processing stage, the data quality is ensured by pre-processing steps such as denoising, normalization, normalization, etc. The CNN model contains an input layer, two convolutional layers, an activation layer, a pooling layer, a fully-connected layer, and an output layer, which realizes real-time monitoring and prediction of power parameters. The results show that during the fault time period (17:35-18:00), the average prediction absolute error of active power of the CNN method reaches 0.917, and the relative error absolute value reaches 151.13%, which is significantly higher than that of the time series method. The platform performance test shows that when the number of concurrency is 100, the dataset throughput rate reaches 315.5 bit/s, and the response time is 355.7 s. The system successfully recognizes the distribution pattern of high and low-frequency events in the practical application of X city and J city. The conclusion shows that the system realizes the effective integration and display of grid information, improves the accuracy of fault prediction, and provides reliable technical support for the intelligent management of power grid.
Rural public facilities are the basic guarantee to promote rural revitalization, but at present, the layout of rural public facilities has problems such as irrational site selection and uneven coverage. Big data analysis technology provides technical support for the optimization of rural public facilities layout, and through the precise layout of rural public facilities, it can improve the service level, promote the equalization of public resources, and create good conditions for the enhancement of rural governance effectiveness. This study establishes an optimization function with the dual objectives of maximizing walking accessibility and minimizing construction cost, considers constraints such as travel routes, coverage and location, and obtains the Pareto-optimal solution set by solving the simulated annealing algorithm. The empirical analysis shows that when the number of facility points is 62, the weighted service distance is 572.78 kilometers, and the average service distance from the villagers’ points to their corresponding rural public facilities is 1.952 kilometers; when the number of facility points is increased to 66, the weighted service distance is decreased to 556.142 kilometers, and the average service distance is reduced to 1.812 kilometers, and the fairness and efficiency of the layout are significantly improved. Based on impedance accessibility analysis, the accessibility score of the optimized Wanji Village Cultural and Fitness Plaza is 7.6, which is better than other comparative areas. The results of the study show that the optimization of the layout of rural public facilities based on big data can effectively improve the level of rural public services, provide technical support for the construction of a digital rural governance system, and promote the enhancement of the effectiveness of rural governance.
In the era of big data, the unbalanced distribution of educational resources in colleges and universities leads to significant differences in the quality of education, and the traditional allocation method lacks scientificity and precision. In this study, the improved K-means clustering algorithm is used to conduct multi-dimensional analysis of students’ learning behaviors and educational resources demand, and construct a resource allocation optimization model to achieve intelligent allocation of educational resources. Through clustering analysis of nine learning behavior indicators of 143 college students, the learners were classified into three groups: excellent learners, ordinary learners and risky learners, among which the excellent learners were outstanding in terms of video viewing time (168.43 minutes) and the number of times of chapter study (147.31 times). The correlation between PPT courseware and final test scores was found to be 0.62, indicating that courseware mastery had a significant effect on student performance. Based on this, an optimal allocation model of educational resources containing six indicators, including teacher-student ratio and number of subjects per teacher, was constructed and applied to the allocation of teacher and library resources in five universities. The results show that after allocating 2,000 teachers through the intelligent allocation model, the student-teacher ratio of each university changes from 12.09-19.43 before allocation to 12.09-13.08 after allocation, which realizes the equalization of resource allocation. The research results provide scientific basis for colleges and universities to teach students according to their abilities, and have important guiding value for promoting rational allocation of educational resources and improving teaching quality.
As a treasure of Chinese culture, Tang Dynasty literature carries rich cultural values, but lacks a systematic evaluation model. Traditional evaluation methods are highly subjective and difficult to comprehensively reflect the multidimensional value of Tang Dynasty literature. This study constructs a comprehensive evaluation model of the cultural value of Tang Dynasty literary works based on the improved Transformer model, and realizes the automatic evaluation of the cultural value of Tang Dynasty literary works through the technical improvements of the feature participle layer, the output participle CLS Token and the Pre-Norm structure. The study establishes an evaluation system containing 21 evaluation indexes from six aspects: historical dimension, ideological dimension, artistic dimension, humanistic dimension, cultural inheritance dimension and social function dimension. The experiment uses 1200 sample data, of which 1000 are used for training and 200 for testing. The results show that the improved Transformer model achieves an accuracy of 85% on the test set, with a precision of 1.0 and an F1 score of 0.862, which is better than the traditional CNN model and LSTM model. In further validation experiments, the model achieves an overall prediction accuracy of 92.65%, which is significantly higher than the CNN model’s 80.65% and the LSTM model’s 80.01%. Factor analysis showed that the cumulative variance contribution rate of the six main factors reached 83.79%, which can comprehensively reflect the cultural value of Tang Dynasty literary works. This study provides an objective and efficient quantitative method for evaluating the cultural value of Tang Dynasty literary works.
Railroad track safety is critical to transportation operations, and track defects may lead to serious accidents. This paper proposes a railroad track defect detection method based on image feature extraction algorithm and BP neural network. Firstly, X-ray imaging is used to obtain the rail defect image, and then the image quality is enhanced by wavelet transform noise reduction processing and contrast and entropy. Then, the improved Otsu threshold method is used to segment the image and extract the geometric features of the defective image; finally, a BP neural network with 5-15-6 structure is constructed to classify and recognize the defects. The experimental results show that the running time of the proposed method in the threshold segmentation stage is only 0.1526 seconds, which is reduced by 62.3% compared with the maximum Shannon entropy multi-threshold segmentation method. For the six defects of wave abrasion, optical band anomaly, serration, abrasion, corrosion and pitting, five geometric features of frequency, amplitude, area, long axis and short axis are selected for the BP neural network training, and the network reaches an error of 0.01 after 112 trainings, which realizes the accurate classification of defects. The method improves the automation degree and accuracy of track defect detection through the combination of image feature extraction and machine learning, which provides an important guarantee for the safe operation of railroads.
China’s economy has shifted from the stage of high-speed growth to the stage of high-quality development, and the problem of unbalanced regional economic development has become increasingly prominent. Fiscal policy, as an important means of national macroeconomic regulation and control, plays a key role in promoting the highquality development of regional economy. This paper constructs a regional economic high-quality development evaluation system based on the information entropy model, and uses the spatial econometric model to test the influence mechanism of fiscal policy regulation on regional economic high-quality development. The study selected the data of Chinese provinces from 2017 to 2024, measured the level of high-quality development of regional economy through the entropy weight method, and applied the fixed effect model and spatial Durbin model to analyze the influence effect of fiscal policy regulation. The results show that: fiscal policy regulation has a significant role in promoting regional economic high-quality development, and the coefficient of fiscal policy regulation in the fixedeffect model is 0.478; regional heterogeneity analysis shows that the coefficient of fiscal policy regulation in the eastern region is the highest at 0.489, in the western region it is 0.101, and it is not significant in the central and northeastern regions; the spatial effect decomposition shows that fiscal policy regulation has a direct effect of 0.668, and a direct effect of 0.668, and a spatial effect decomposition shows that fiscal policy regulation has a The direct effect is 0.668, the indirect effect is 0.346, and the total effect is 1.045. The study proposes the optimization of the path of fiscal policy regulation from the developmental to the livelihood, from the demand side to the supply side, and from the administrative to the market side, which provides the theoretical support and policy inspiration for the promotion of high-quality development of regional economy.
Mental health problems of students in colleges and universities are becoming more and more obvious, and traditional assessment methods have limitations such as poor timeliness and narrow coverage. This study constructs a mental health assessment method for college students based on sentiment analysis technology and multilayer perceptual machine. The method mines the psychological state features implied in students’ web content data from two dimensions, text sentiment computing and image sentiment computing, respectively, through a multimodal fusion computing framework, and adopts a multilayer perceptual machine model for mental health level assessment. In the textual sentiment analysis part, the constructive study builds a three-layer neural network of word embedding layer-bidirectional long and short-term memory layer-dense connectivity layer to capture the textual contextual sentiment information; and in the image sentiment analysis part, a convolutional neural network based on VGG16 is used to accurately recognize the emotional tendency in the images through fine-tuning strategies. Aiming at the sample imbalance problem, the study introduces a cost-sensitive method to optimize the training process. The experimental results show that the evaluation method performs well on the sentiment classification MSD dataset, with an accuracy of 92.3% for text sentiment classification and 96.2% for image sentiment classification, both of which are better than the traditional CNN and BiLSTM models; and on the public dataset Yelp, the average accuracy reaches 67.08%, which is an improvement of more than 5% compared with other algorithms. The multilayer perceptual machine model is used for the student mental health assessment task with an accuracy of 92%, showing better generalization performance. The study shows that the multimodal fusion sentiment analysis technique combined with the multilayer perceptual machine model can effectively realize the automatic assessment of students’ mental health status in colleges and universities, providing a scientific basis for psychological intervention.
As an important transportation infrastructure, high-speed railroad has a significant impact on the development of tourism in ethnic areas. Tourism resources in ethnic areas are rich but underdeveloped, and the opening of high-speed railways provides guarantee for tourism convenience and promotes the expansion of the source market. Based on Data Envelopment Analysis (DEA) and Double Difference Method (DID), this study utilizes the panel data of Region B from 2012-2018 to explore the enhancement effect of the opening of high-speed railroads on the economic benefits of the tourism industry in ethnic regions. The study adopts the DEA-BCC model to assess the comprehensive efficiency of the tourism industry, utilizes the DEA-Malmquist index to measure the change in total factor productivity, and employs the PSM-DID method to assess the impact of the opening of high-speed railways on the economic development of tourism. The results of the study show that: the overall comprehensive efficiency of tourism in Region B shows an upward trend, with an average value of 0.45 during 2012-2018, reaching a maximum value of 0.80 in 2018; the Malmquist index analysis shows that the index of total factor productivity change has increased by 0.1% annually, of which the index of technical efficiency change has increased by 0.6% annually, and the index of technological progress has declined by 0.5% annually; the double difference analysis shows that the opening of high-speed rail significantly improves the level of tourism economic development of cities in ethnic areas along the route, and the coefficient of the core explanatory variable is 0.122, and it is significant at the 5% level. The mechanism analysis shows that the high-speed rail promotes the rise of green economic efficiency of urban tourism through the channels of increasing the scale output of tourism, promoting the upgrading of industrial structure and upgrading the level of urban greening. The study confirms that the opening of high-speed railways has an obvious promotion effect on the tourism economic development of ethnic areas, and provides a scientific basis for the tourism policy formulation and transportation infrastructure construction in ethnic areas.
The cross-border e-commerce market is booming in the context of digital economy globalization, and the accurate understanding of consumer behavior becomes the key to improve marketing efficiency. This study focuses on cross-border e-commerce consumer behavior characteristics under the perspective of digital economy globalization, and analyzes the shopping behavior data of 25,000 users provided by Tianchi Labs by using RFM customer segmentation model, entropy value method, factor analysis, and improved K-means clustering algorithm based on optimal K-value selection. The study extracted three public factors, namely, activity, purchase value and purchase intention, with a cumulative variance contribution rate of 83.45% through factor analysis, and constructed a cross-border e-commerce consumer behavior indicator system. The results of the cluster analysis show that cross-border e-commerce consumers can be divided into three categories: the first category of users (3079) with short consumption interval, high consumption frequency, low activity conversion rate, belonging to the important value customers; the second category of users (4209) with long consumption interval, low consumption frequency, low activity conversion rate, and low loyalty and satisfaction; the third category of users (17,712) with short consumption interval, low consumption frequency, low activity conversion rate, and remain active despite low loyalty. This study reveals the behavioral patterns and value differences of cross-border e-commerce consumers, providing data support and decision-making reference for platforms to develop differentiated marketing strategies.
Computer vision is an important field in the digital era, and target detection technology plays a key role in it. Traditional methods have accuracy and robustness limitations in complex environments, and point cloud data has gradually become a research hotspot due to its advantage of 3D spatial information. Multimodal deep learning effectively solves the limitation problem of single modality by fusing different data sources, and significantly improves the performance of target detection. In this paper, an end-to-end deep learning model (MANet) based on mutual attention mechanism is proposed to realize the effective fusion of point cloud data and RGB image features for 3D target detection. The point cloud data is first preprocessed with statistical filtering and RANSAC ground segmentation, and then an end-to-end deep learning network composed of four modules: point cloud feature learning, image feature learning, mutual attention feature fusion, and target detection is designed. Through the mutual attention mechanism, the alignment and fusion of point cloud and image features are realized, and the 3D target detection performance is improved. Experiments on the KITTI dataset show that the proposed MANet algorithm achieves 86.13% accuracy on the Car AP 3D metric with medium difficulty, which is a 5.66% improvement over MAFF-Net, and 92.27% on the Car AP BEV metric.Ablation experiments on the Waymo Open dataset demonstrate the effectiveness of the mutual-attention feature fusion to make the 3D mAP of LEVEL_1 to improve from 84.57% to 85.84%. The experimental results show that the proposed multimodal fusion method can effectively improve the accuracy and robustness of 3D target detection, which is of great application value in the fields of autonomous driving and smart city.
The application of intelligent optimization methods injects new vitality into personalized clothing design and effectively improves the efficiency of combining creativity and craftsmanship. In this study, the interactive genetic algorithm is used to optimize the process of personalized clothing design, and the method to enhance the efficiency of combining creativity and craftsmanship is explored. Considering the garment as a whole as a chromosome, the key elements are binary coded, and a single-point crossover mutation is used to continuously optimize the design scheme. The system realizes human-computer collaborative design through the user’s subjective evaluation as an adaptation function, effectively overcoming the limitations of traditional design methods. The experiment selects 8 groups of initial populations, sets the crossover probability 0.6 and mutation probability 0.8, and invites 20 users to participate in the test. The results show that the interactive genetic algorithm can obtain higher aesthetics values compared with the traditional method, with an average improvement rate of 18.32% (comparing with the traditional genetic algorithm) and 35.06% (comparing with the two-dimensional crop method). The average fitness values for users to obtain satisfactory design solutions are all greater than 88.67, and the highest fitness value can reach 97. All users can obtain satisfactory results within 4-8 generations, and the average evolution reaches the maximum value of evaluation in the 9th generation, which is significantly better than that of the traditional genetic algorithm in 12 generations. The experiment proves that the method not only improves the efficiency of personalized clothing design, but also enhances the user’s cognition of the system, realizes the efficient combination of creativity and craftsmanship, and provides a new idea for personalized clothing customization.
Mental health problems of students in today’s society are becoming more and more obvious, and physical education is an important way for students’ emotional intervention. This study constructed an intelligent physical education teaching model and explored its effect on college students’ emotional intervention and mental health enhancement. The study used the literature method, questionnaire survey method, field survey method and mathematical statistics method to obtain 810 valid samples through random whole cluster sampling with students from four colleges and universities in S city as the research object. The study used multidimensional scales to measure physical activity habits, emotion regulation self-efficacy and negative academic emotions, and conducted intelligent physical education intervention experiments. The results showed that: in the formation of physical activity habits, emotion regulation efficacy could influence exercise adherence through emotion regulation strategies and exercise commitment, in which cognitive reappraisal strategy was significantly better than expression inhibition strategy; SAS scores in the smart physical education intervention group decreased significantly from 61.42±8.06 to 36.34±5.69 before the intervention, whereas those in the control group decreased to 50.24±7.96; and HAMA scores in the intervention group decreased to 50.24±7.96; and HAMA scores in the control group decreased to 50.24±7.96. Meanwhile, the HAMA score of the intervention group decreased from 18.41±4.32 to 6.25±1.58, which was significantly lower than that of the control group (11.49±2.89), and it was found that college students’ anxiety was affected by personality traits, employment pressure and family education style, of which employment pressure and family education style had a positive effect on anxiety, with regression coefficients of 0.642 and 0.401, respectively. Based on the results of the study, the intelligent sports teaching mode has a significant effect on college students’ emotional intervention and mental health enhancement, and the cultivation of emotional regulation ability and the application of intelligent technology should be strengthened to provide new ideas for the reform of sports teaching.
With the rapid development of quantum computers, traditional cryptographic algorithms face serious threats from quantum attacks. In this paper, we design a chameleon signature scheme that can resist quantum computer attacks and analyze its security in detail. The study adopts the idea of lattice-based cryptography to construct a novel chameleon signature scheme and proves the security of the scheme under the random predicate machine model. The innovation of the scheme is that by constructing identity-based chameleon signatures, it is able to withstand quantum computing attacks while maintaining its efficiency. Experimental results show that the scheme is computationally efficient when performing key generation, signature generation and verification. Specifically, under the simulation platform, the new chameleon signature scheme improves the computational efficiency in the handshake process by about 25% compared to the traditional RSA signature scheme. In addition, the scheme in this paper provides stronger authentication security and is able to realize encryption, signature and signing functions at the same time, which has the potential for a wider range of applications. Ultimately, the experiments show that the scheme achieves the desired goals in terms of performance and security, and provides new ideas for digital signature research in the post-quantum era.
With the development of modern technology, three-dimensional imaging technology has been increasingly used in several fields. As a non-homogeneous material, the performance of construction asphalt mixtures is not only affected by the material composition, but also closely related to the internal structure. In this paper, the microstructural properties of construction asphalt mixtures are investigated by three-dimensional imaging technology, with the aim of exploring the relationship between aggregate distribution, void structure and asphaltaggregate interface in asphalt mixtures. The study used 3D imaging technology to scan different types of asphalt mixtures and obtained 3D images with sub-millimeter resolution, and then analyzed their internal structural properties. The experimental results show that the distribution of coarse aggregate in dense asphalt mixtures is more uniform and the void structure is tighter, while the open-graded wearing course has larger voids and a looser structure. Through the experiments under different vacuum levels, it is found that vacuum compaction can significantly reduce the size of the voids, and the larger the vacuum level, the stronger the interfacial bond between asphalt and aggregate. Specifically, the maximum void sizes under working conditions were 15 mm and 25 mm, respectively, and the larger the vacuum degree, the smaller the proportion of large-size voids. The study shows that 3D imaging technology can effectively reveal the microstructure of asphalt mixtures, which provides data support for further optimizing the proportion and performance of asphalt mixtures.
Bitumen is often used as a precursor for the preparation of carbon materials due to its high carbon content and abundant resources. Bitumen-based carbon materials have a high degree of graphitization, fewer defects and higher electrical conductivity, which have potential applications in energy storage. In this study, the effect of asphalt pretreatment on the pore structure and electrochemical behavior of porous carbon was investigated. Numerical simulation methods were used to prepare nine porous carbon materials from coal liquefied bitumen, mediumtemperature bitumen and high-temperature bitumen by preoxidation, catalytic polymerization and high-temperature polymerization pretreatments, and analyze their structural characteristics by elemental analysis, XRD and Raman spectroscopy, determine the pore structural parameters by nitrogen adsorption-desorption isotherms, and use constant current charging/discharging, cyclic voltammetry and AC impedance spectroscopy to The electrochemical properties were evaluated by constant current charging and discharging and AC impedance spectroscopy. The results show that the heat treatment temperature directly affects the microcrystalline structure and pore size distribution of the porous carbon, and the carbon layer spacing d002 reaches a maximum value of 0.427 nm during the heat treatment at 430 ℃, indicating that it is the most disordered. The sample of PCs-370 possesses a maximum specific surface area of 2160 m²/g, with a microporous volume percentage of 91%. In terms of electrochemical performance, PCs-460 showed the best performance in the three-electrode system, with a specific capacitance of up to 422F/g at 0.5A/g current density, and remained above 290F/g at 10A/g current density. The results proved that porous carbon materials with excellent electrochemical properties can be prepared after appropriate pretreatment and activation of bitumen, which is of great significance for the design and preparation of electrode materials for high-performance supercapacitors.
Traditional topology identification methods face challenges such as difficult data acquisition and low identification accuracy. In this paper, we propose a topology identification and reconstruction model for electrical and electronic distribution systems based on big data technology, which realizes high-precision identification of distribution network topology by integrating the Pearson correlation algorithm, clustering analysis, and knowledge graph, and by combining with power line broadband carrier communication technology. The study first analyzes the topological features and representation methods of medium-voltage and low-voltage distribution systems, and constructs a topology description model based on node-node adjacency matrix; then it designs a topology identification process that contains five steps: site preparation, equipment timing, data acquisition, data cleaning and data analysis. Simulation results based on the IEEE 33-node test system show that when the pseudo measurement error is 1% and the real-time measurement error is 10%, the topology recognition accuracy of the traditional method is 93.25%, while the accuracy of the proposed big data fusion method reaches 100%; in the most severe conditions (5% pseudo measurement error and 30% real-time measurement error), the proposed method still maintains 71.42% recognition accuracy, which is 6.2% higher than the traditional method. The proposed method maintains 71.42% recognition accuracy under the most severe conditions (5% pseudo-measurement error, 30% real-time measurement error), which is 6.2% higher than the traditional method. The study realizes the effective identification and reconstruction of distribution system topology, which provides support for applications such as distribution network loss analysis, fault location and active inspection, and is of great significance for improving the operation efficiency and reliability of distribution systems.
Internet technology promotes the innovation of education mode, and OMO teaching mode deeply integrates online and offline teaching and lacks personalized learning path planning. The accumulation of largescale educational data provides a foundation for learner behavior analysis, and the construction of knowledge point difficulty model and learner state model through data analysis algorithms realizes personalized learning path planning for different learning styles, improving learning effect and satisfaction. In this study, cognitive network analysis (CNA), social network analysis (SNA) and content analysis (CA) are used to analyze and process educational data, focusing on learners’ online learning behaviors and practice test scores, and establishing a model for judging learners’ learning status. The experimental results show that the learning path planned based on the CNA method is more in line with the user’s learning style, and the similarity with the user 2 learning style reaches 0.90, which is higher than the SNA and CA methods. The data analysis showed that the number of library behaviors of students with good grades (about 19.73% of the total number of students) reached 52 times, which was significantly higher than that of students with average grades (46 times) and students with poor grades (40 times). In addition, seven key factors were extracted through principal component analysis, which could explain 69.945% of the overall variance, effectively reflecting the correlation between students’ behaviors and academic performance. The study proves that personalized learning path planning based on large-scale educational data analysis can effectively meet the needs of users with different learning styles, improve learning efficiency and user satisfaction, and provide effective methodological support for the practical application of OMO teaching mode.
Hainan, as an important tourist destination, faces the dual challenges of fragile ecological environment and rapid development of tourism. Under the background of peak carbon neutral strategy, it is important to assess the carbon emission efficiency of Hainan tourism and optimize the emission reduction path. This study evaluates the carbon emission efficiency of Hainan tourism from 2013 to 2024 based on the entropy weight method and the super-efficiency-SBM model, analyzes the temporal and spatial evolution of the carbon emission efficiency by using the Markov chain, and proposes an optimization scheme of the emission reduction path. The results show that the carbon emission of Hainan tourism increases from 2,326,690,000 tons to 8,364,280 tons in 2013-2023, with a growth of 3.595 times, and decreases to 3,538,260,000 tons in 2024, with a decrease of 57.70%; the carbon emission intensity of the tourism industry decreases from 2.064 tons/yuan in 2013 to 0.427 tons/yuan in 2024, with a decrease of 79.31%. The carbon emission intensity of tourism will drop from 2.064 tons/yuan in 2013 to 0.427 tons/yuan in 2024, a decrease of 79.31%. From the perspective of spatial distribution, the carbon emission efficiency of the tourism industry in the eastern region of Hainan is higher than that in the central and western regions, but it is a “W”-shaped slow decline trend; the efficiency of the western region starts from a lower point but fluctuates and rises. Markov chain analysis shows that the convergence effect of the tourism industry’s carbon emission efficiency club in the period of 2020-2024 (0.662) is enhanced compared with that in the period of 2013-2019, and the efficiency club stabilizes in the poles, which is the most probable. The possibility of the efficiency club is the largest. It is concluded that the low-carbon development of Hainan tourism should optimize the tourism traffic structure, define the key areas for emission reduction, strengthen regional collaboration, change the development mode, control the scale of hospitality, improve the technical level and promote the construction of new urbanization, so as to build a comprehensive path system for carbon emission reduction in the tourism industry.
With the development of resource-saving and environment-friendly concepts, lightweight, high-strength, high-performance and low-consumption structures have become a design trend. Topology optimization, as an optimization design method, can achieve the optimal performance of structures under the satisfaction of constraints, and has been widely used and concerned in many fields. This paper discusses the application of topology optimization algorithms in landscape design and spatial layout planning. The optimal design of node structure is realized by establishing a multi-scale model and a topology optimization method applicable to spatial structure. The study adopts the SIMP interpolation model in the variable density method, takes the minimum structural strain energy as the optimization objective, and constrains the volume ratio before and after optimization. In the multicase analysis, the flexibility value of the optimized node under the 30% volume constraint is lower than that of the original node in most of the cases, and the final flexibility of Case 3 is 9.18 mm, which is improved by 28.8% compared with that of the original node; and in the case of the similar material usage (volume of the optimized node 7,652 cm³, volume of the original node 7,450 cm³) In the case of similar material usage (optimized node volume 7652cm³, original node volume 7450cm³), the optimized node reduces the flexibility value by 8.2% in Case 4, and the structural stiffness is significantly improved. The design scheme generated by topology optimization not only meets the engineering requirements, but also presents the characteristics of bionic organic structure and the aesthetics of flowing space, which provides new ideas and methods for landscape design and spatial layout planning.
As an important mediator of intercellular communication, this exosome plays a key role in tumor development. The purpose of this study is to screen exosome-related molecules in triple-negative breast cancer by bioinformatics methods, to explore their relationship with gene probes, and to construct a prognostic model. Methodologically, the gene expression profiles of 100 triple-negative breast cancer samples and 100 normal tissue samples were obtained from the TCGA database, combined with exosome signature-related genes from the ExoBCD database to screen for differentially expressed genes, and constructed a risk prediction model by LASSO regression and Cox regression analysis. The results showed that the prognostic model had high accuracy in the training set, with areas under the ROC curve of 0.8 at one year, 0.72 at three years, and 0.76 at five years. Univariate and multivariate Cox regression analyses demonstrated that the risk scores and the N stage could be used as independent prognostic indicators (P<0.001). In the external validation set, there was a significant difference in the overall survival of patients in the high and low risk groups. In this study, we successfully constructed a prognostic model for triple-negative breast cancer based on exosomal molecules, which provides new ideas for clinical risk assessment and individualized treatment.
With the growth of financial data scale, the traditional financial anomaly identification method is difficult to meet the demand for efficient monitoring. This study constructs an intelligent anomaly identification model for financial data based on decision tree algorithm, which improves the accuracy and efficiency of financial anomaly detection. The study utilizes variance reduction and information gain as decision criteria, adopts post pruning strategy and advancement technique to optimize the model performance, and combines a variety of data preprocessing methods to process financial data containing 4616 listed companies in 26 industries. The experimental results show that the constructed model achieves an accuracy rate of 0.869, a precision rate of 0.830, a recall rate of 0.791, and an F1 value of 0.810 in financial data anomaly recognition, which is better than the comparative algorithms such as CNN, LSTM, and BP. In the financial fraud identification task, when both corporate governance indicators and financial control indicators are used, this model achieves an accuracy rate of 0.884 and an AUC value of 0.835, which is an improvement of 7.3% to 22% over the comparison models. The case study verifies the effectiveness of the model in identifying financial anomalies, and achieves accurate identification of anomalous signals such as abnormal net profit per capita and high equity pledge. The study shows that the decision tree-based intelligent anomaly identification model for financial data can accurately extract key features in financial time series data, improve the accuracy of anomaly identification, and provide support for the early warning of corporate financial risks.
With the development of information technology and the gradual popularization of the online litigation mode, the digital trial mode has had an impact on the traditional trial mode under the framework of the civil procedure law, which needs to be analyzed in depth to determine its impact and the effectiveness of its application. This study analyzes the impact of online litigation on the traditional trial mode under the framework of civil procedure law from a digital perspective. Through a combination of literature analysis, case study and questionnaire survey, it systematically examines the key problems of the trial mode under the framework of civil procedure law, explores the practical steps and application paths of online litigation, and empirically analyzes the effectiveness of the online litigation system in judicial services. The study found that after the implementation of the online litigation system in L courts, the success rate of paper service increased from 71.27% in 2017 to 90.25% in 2024, and the utilization rate of summary procedures increased from 75.19% to 92.07%. More than 208,670 times of various litigation materials were served through the online litigation system, saving more than 1.6 million yuan in service costs each year. The questionnaire survey showed that the user experience satisfaction ratings of the online litigation system by case judges and parties reached 4.61 and 4.70 respectively, and the study shows that the online litigation system has effectively enhanced judicial efficiency, saved judicial resources and improved user experience through digital transformation, but there is still room for improvement in terms of system stability and interface user-friendliness, etc. This study is helpful for promoting the digital transformation of civil litigation system. This study has important reference value for promoting the digital transformation of civil litigation and improving the online litigation mechanism.
Public health emergencies are characterized by fast spreading speed, wide range of influence, and great social harm, and the traditional response method has the problems of monitoring blind area and response lag. With the development of big data and artificial intelligence technology, the intelligent detection and response system based on pattern recognition can realize the integrated management of the whole process, improve the early identification and efficient disposal of community public health events, and provide information support for precise prevention and control. In this study, the BiLSTM+CNN hybrid neural network model was used to extract the deep semantic features of the text, and fused the multidimensional information such as basic user attributes, behavioral features, text features and communication features to realize the intelligent recognition and processing of the information on public health emergencies. The experiments use CHECKED extended dataset for model validation, which contains 813 rumor texts and 1894 non-rumor texts. The results show that the proposed BiLSTM+CNN multifeature fusion model performs well in the rumor recognition task, with an F1 value of 0.985, and accuracy and precision of 0.978 and 0.974, respectively, which are better than the existing mainstream models. Further analysis of the response effect of community residents in Wuhan shows that the global Moran’s I index of sentiment index and case index is -0.115, showing a significant negative correlation in the period of strict prevention and control. The results of the study proved that the pattern recognition method based on multi-feature fusion can effectively improve the intelligent detection and response ability of public health emergencies, and provide new ideas for community public health emergency management.
With the rapid development of social media, massive user behavior data and sentiment expression have become important research resources. Existing sentiment analysis methods still have limitations in dealing with complex text and user behavior features. In this study, we constructed a support vector machine-based model for analyzing user behavior and sentiment tendency of social platforms, processed unstructured text data through vector space model, and built a high-dimensional mixed-feature sentiment classifier by combining mutual information value feature extraction and latent semantic analysis. In terms of methodology, firstly, text data is preprocessed by vector space model, and data annotation is performed by using lexicon and weakly labeled information; secondly, feature extraction is performed by using mutual information value computation, and SVM algorithm is used to construct sentiment classifiers; finally, empirical analysis is performed to analyze the user behaviors and emotional tendencies of social platforms. The results of the study show that: short video playing, liking, commenting and sharing behaviors conform to the power law distribution with long-tail effect; the actual conversion rate of short video is only 2.83%, which shows that the user participation is low; in terms of sentiment analysis, the sentiment density of user J in the 38-day observation period reaches 0.8957227, which is significantly higher than that of other users; and the characteristic value of the sentiment transmissibility of user X is 2.83, which is significantly higher than that of other users. The conclusion of the study shows that the constructed highdimensional mixed-feature SVM model can effectively reflect users’ behavioral characteristics and emotional tendencies, providing a technical method for social platform user behavior prediction, emotion monitoring and crisis warning.
The digital economy is reshaping the global economic pattern at an unprecedented speed, and has become an important force to promote the transformation of regional economic structure. Based on data mining technology, this paper deeply explores the mechanism and effect of digital economy on regional economic structure transformation. The study adopts a factor analysis model to construct an evaluation index system from four dimensions, namely digital communication infrastructure, digital network infrastructure, digital industry development level and innovation ability, to measure the development level of digital economy in a region from 2015 to 2024, and to analyze the impact of the digital economy on the structural transformation of the regional economy by combining the orthogonal least squares method. The results of the study show that: the level of digital economy development is significantly positively correlated with the transformation of regional economic structure, with a regression coefficient of 0.446, indicating that the development of the digital economy has a positive effect on promoting the proportion of tertiary industry; the analysis of regional heterogeneity shows that the impact of the digital economy on the transformation of the economic structure of the central region is most significant, with a regression coefficient of 0.701, which is significantly higher than that of the southern region, 0.532, and northern The analysis of control variables found that the level of financial development and the level of urbanization had a positive effect on economic structural transformation, while the level of education investment had a negative effect. The study provides theoretical basis and practical guidance for regions to formulate differentiated digital economy development strategies and promote the optimization and upgrading of economic structure.
Balanced allocation of compulsory education resources is the basis for realizing educational equity. Currently, the spatial distribution of compulsory education resources in China’s rural areas is uneven, and there are significant differences between rural areas in the west and coastal areas in the east in terms of site conditions, facility conditions and teacher conditions. This study evaluates the spatial balance of compulsory education resources in rural areas of China based on geographically weighted regression model. The source of spatial differences in educational resources between rural areas in the west and coastal areas in the east is analyzed using the Thiel index decomposition method, and the regional geographically weighted regression model (RGWR) is introduced to construct an assessment model for the compulsory education resources index. The study selects the 2014-2023 national county compulsory education basic balanced supervision and evaluation data, and analyzes eight indicators in three dimensions: site conditions, facility conditions and teacher conditions. The study finds that: intra-regional differences are the main source of spatial differences in educational resources, and the contribution rate of intra-regional differences in the eight indicators ranges from 88.58% to 99.23%; the index of compulsory education resources in the sample rural areas rises from 100 in 2014 to 298 in 2023, with an average annual growth rate of 12.97%; the allocation of educational resources in the eastern, central and western regions shows differentiated characteristics, with the eastern region increasing by the The highest is 225, the western region has the fastest average annual growth rate of 15.08%, and the central region has the slowest growth rate of 11.57%. The study shows that the spatial balance of compulsory education resources in rural areas still needs to be improved, and it is recommended to clarify the actual demand for the allocation of education resources, improve the overall quality and fairness of education, and optimize the travel of students to improve accessibility.
Transforming dance drama works into structured data through multi-dimensional computational analysis and combining it with audience emotional response assessment can evaluate dance drama works from a quantitative perspective, provide data support for the creation, performance and evaluation of dance dramas, and promote the innovative development of the dance drama art and the enhancement of audience experience. This study constructs a multi-dimensional computational analysis and audience emotional response assessment system for structured data of classical dance drama works. The study adopts a multidimensional structured data modeling framework to perform computational analysis of dance drama works from entity dimension, attribute dimension and history dimension, and extracts the core features of dance drama works by combining the multidimensional information fusion mechanism and the entity level encoder; at the same time, it designs an audience emotion assessment model based on ATAAE-BERT-BiLSTM to classify and identify the audience emotional response of dance drama works. The experimental results show that the proposed model outperforms the best-performing PIVOT in the baseline model by 2.88 and 0.67 in BLEU and NIST metrics, respectively; in the multidimensional correlation validation, the mean values of the structured data of the storyline, characterization, dance language, music performance, and stage scene reach more than 3000; in the emotion assessment model, the complete segmentation based on ATAAE-BERT-BiLSTM BERT-BiLSTM model achieved 83.25% accuracy and 83.88% F1 value in 4-segment segmentation mode, which were 5.14% and 6.72% higher than the BERT-LSTM model, respectively. The study provides a data-based method for the scientific evaluation of dance drama works and effectively supports the creation and dissemination of dance drama art.
Teaching in the specialty of soil and water conservation and desertification control faces challenges such as limited practical teaching resources, restricted experimental sites, and long observation cycles. This study explores the innovative strategy of applying virtual simulation technology to the teaching reform of soil and water conservation and desertification control specialty. By constructing a virtual laboratory organizational structure with vertical support and horizontal openness, a multifunctional virtual simulation experimental teaching platform is established to optimize the teaching of soil and water conservation and desertification control professional courses. The research adopts coordinate system design, basic transformation, data resource library and illumination technology to construct the virtual scene, and optimizes the experimental scene through the fusion of binary projection image generation and significant feature extraction. The experimental evaluation adopts the method of pre and post-test comparison and independent sample t-test, and the experimental class and control class students are selected to carry out a semester-long teaching experiment. The results show that the average value of students’ practical ability posttest score in the experimental class under virtual simulation teaching is 53.19 points, which is 6.43 points higher than that of 46.76 points in the control class (P<0.001); the average score of the course after the teaching reform is increased to 84.63 points, which is 7.26 points higher than that before the reform; the students' enhancement is most significant in the dimension of information and technological literacy, with a difference of 1.7 points (P<0.001). The experiment proves that the teaching mode of soil and water conservation and desertification control specialty based on virtual simulation technology can effectively improve students' practical ability and learning interest, and provides an effective way to solve the problems of limited practical teaching resources and long observation period in traditional teaching.
The application of human-computer interaction (HCI) technology in dance teaching is an emerging direction to improve teaching quality. Traditional dance teaching relies on teachers’ demonstration and verbal instruction, which makes it difficult for learners to get immediate feedback and affects the mastery of complex movements. This paper establishes a dance movement recognition model through a computer vision system, explores the impact of human-computer interaction technology on the learning efficiency of complex dance movements, and provides technical support and innovative methods for dance teaching. The study adopts image preprocessing, thresholding processing and background subtraction techniques to process the dance video, and combines the mean Hausdorff distance, Hidden Markov Model and joint point angle measurement to construct the dance movement recognition system. The experimental part trains the 2D human key point recognition model with 3D coordinate regression model, which is validated on MPII and Human3.6M datasets. The results showed that: the average recognition rate of the constructed dance movement recognition model for ten complex movements reached 98%; the total dance skill scores of students in the experimental class applying the system were significantly higher compared to the control class with traditional teaching (89.78±3.849 vs. 84.215±4.869, P<0.01); and the three indexes of musical rhythmic accuracy, expressiveness, and body form retention all presented significant differences (P<0.01); 80% of the students in the experimental class showed strong or very strong self-confidence, compared with only 40% in the control class. The study proves that dance teaching based on human-computer interaction technology can significantly improve learners' learning efficiency, skill level and learning interest, and provides a new teaching mode and method for dance education.
With the acceleration of the global integration process and the development of artificial intelligence technology, the regional economic cooperation model under the “Belt and Road” strategy needs to be optimized in order to enhance the benefits of cooperation and promote the coordinated development of the region. This paper discusses the optimization path and benefit analysis of the regional economic cooperation model under the “Belt and Road” strategy with the assistance of artificial intelligence. The study constructs a regional economic readiness evaluation system and a stochastic frontier gravity model, measures the readiness of regional economic cooperation through principal component analysis and efficacy score method, and analyzes the impact of economic cooperation on regional economic growth by using fixed effect model. The results show that Singapore, Estonia and Israel are among the top three countries along the Belt and Road in terms of readiness for regional economic cooperation, while China is in the 14th place due to its low factor endowment and business environment scores. The empirical analysis shows that the GDP level of cross-border regional economic partner countries has a significant negative impact on trade inefficiency factors, and the increase of geographical distance has a significant hindering effect on trade efficiency. Fixed effects model results further confirm that joining the regional economic cooperation model has a significant positive effect on economic growth, with a coefficient of 0.086, and passes the significance test at the 1% level. Based on the findings of the study, this paper proposes optimization suggestions such as strengthening the construction of network infrastructure, promoting the construction of the economic community and building a digital financial service system, in order to promote the higher-quality development of the “Belt and Road” regional economic cooperation.
With the in-depth promotion of the “Belt and Road” strategy, intelligent technology has become an important support for the optimal allocation of regional economic resources. Digital technology has become a factor of production, and the construction of “digital bridge” in regional cooperation improves the efficiency of resource allocation. This study explores the mechanism and implementation effect of the integration of regional economic resource optimization and smart technology under the background of “Belt and Road”. By constructing a stochastic DEA model with non-expected output, we analyze the regional economic resource allocation efficiency from the input-output perspective by taking the logistics industry of 17 provinces along the “Belt and Road” as the research object from 2013 to 2019. The results show that Liaoning, Shanghai and Zhejiang provinces have maintained a comprehensive technical efficiency value of 1.000 for seven consecutive years, which is located in the production frontier; the average value of the comprehensive efficiency of Heilongjiang, Qinghai and Xinjiang provinces and regions is lower than 0.5, which is far lower than the average value of the industry of 0.685; the kernel density analysis reveals that the operational efficiency of the logistics industry of the provinces along the route evolved from a single-peak distribution to a bimodal distribution from 2013 to 2019, and the phenomenon of efficiency polarization has expanded. Expansion. The study identifies input redundancy and output insufficiency problems in each province by measuring the relaxation factor, and proposes an optimal allocation scheme of regional economic resources based on intelligent technology. The study concludes that smart technology can effectively enhance the efficiency of regional economic resource allocation, weaken geospatial constraints through digital platforms, improve information transparency and flow efficiency, reduce the risk of information asymmetry, and promote the leapfrog development of regional economic cooperation.
With the development of big data technology, data mining methods provide a new way to combine the study of fine art and philosophy. In this study, K-means clustering algorithm and support vector machine model are used to extract features and classify the dataset containing 2,713 samples of typical philosophical fine arts works in China and 3,671 fine arts works integrating philosophical ideas from abroad. The study shows that the performance of K-means clustering after feature extraction is significantly better than other algorithms, with a clustering accuracy of 89.16% and a profile coefficient of 40.4. In terms of philosophical-emotional feature mining, the Pearson’s correlation coefficient of the support vector machine model in the utility prediction is 0.676, and the average absolute error is only 0.113, which is superior to the comparative models such as CNN and LSTM. The study classifies works of fine art into four major philosophical clusters: existentialism, metaphysics, social criticism and discernment, and perceptual experience, and predicts and analyzes the affective characteristics of each type of work. A survey of the number of participants in the International Society for the Philosophy of Works of Art 2020- 2024 shows that there is a growing trend towards the integration of fine art and philosophy. The study provides data support and theoretical framework for deepening the combination of fine art creation and philosophical thought, which is of great significance in promoting the multidimensional development of art creation.
With the rapid development of social media, public opinion information on social platforms has shown explosive growth. Accurately predicting the trend of social media public opinion dynamics is of great significance in grasping the direction of public opinion development and intervening in the dissemination of undesirable public opinion in a timely manner. This study explores the prediction method of social media opinion dynamics based on time series data modeling technology. First, a multilevel prediction model integrating theme identification layer, feature processing layer, prediction layer and parameter optimization layer is constructed. The LDA model is used to identify the themes of social media public opinion, and feature splicing is used to complete the fusion of multithematic features. In the prediction layer, the multidimensional features are used as input variables, the LSTM model is used to realize the dynamic prediction of public opinion, and the model hyperparameters are optimized by the gray wolf optimization algorithm. The experimental results show that the correlation coefficient of the optimized LSTM model in this paper reaches 0.518 on the public opinion dataset, which is significantly higher than that of the comparison models such as ARMA, Prophet, Informer and the original LSTM, and the standard error RMSE is 2012.117, and the average absolute percentage error MAPE is only 4.275, which is about 30% lower than that of the comparison models. In the prediction of information dissemination in “a hot spot”, the MSLE value of this model is reduced by 0.124 and the MAPE value is reduced by 0.056 compared with the optimal comparative model Informer, and the study shows that the temporal data modeling method integrating multi-topic features can effectively improve the accuracy of the prediction of the dynamics of the public opinion in social media, and it has practical application value for the early warning and intervention of public opinion changes in the hot spot events in the society.
With the in-depth application of artificial intelligence technology in the field of education, intelligent teaching systems have evolved from simple computer-assisted learning to complex systems capable of understanding and responding to learners’ emotional states. This paper explores the moderating role of emotion perception on learners’ behavioral patterns in AI-assisted education based on an intelligent sentiment analysis model. The study designs a bimodal sentiment analysis model GTA-BERT that retains text-sentence dependency analysis information and fuses text-speech masked attention, which consists of four parts: text feature extraction, speech feature extraction, DEGCN text-sentiment enhancement module and masked attention fusion. Through comparison experiments with mainstream sentiment analysis models and questionnaire surveys, the study verifies the effectiveness of the model in sentiment recognition and learning behavior regulation. The results show that the GTA-BERT model performs well in multimodal sentiment analysis, with Acc-2, F1, Acc2-weak, and Corr values of 93.24, 83.96, 75.01, and 72.67, respectively, which are the highest values among all the compared models. The empirical study confirmed the direct impact of AI-assisted instruction on learners’ behavioral patterns, while emotional perception and mood played an important mediating role in it. The conclusion of the study shows that the intelligent sentiment analysis model can effectively identify learning emotions, while the application of emotion perception in the teaching process helps to regulate learners’ behavioral patterns and improve the effectiveness of AI-assisted education.
With the concept of new quality productivity, regional industrial transformation has become a necessary path for high-quality economic development. However, there is an obvious disconnect between traditional industrial structure transformation and talent supply, which restricts the development of regional innovation. This paper explores the intelligent optimization strategy of regional industrial transformation and talent supply path driven by new quality productivity. The study explores the effective ways of synergistic development of industrial structure optimization and talent supply by analyzing the current situation of industrial transformation and talent supply in Region A from 2000 to 2020, and constructing a composite talent supply framework by combining the AGIL model. The results show that: the structure of the three industries in Region A shows the trend of “retreating one, reducing two and increasing three”, and the proportion of the tertiary industry has increased by 18.7 percentage points from 30.6% in 2000 to 49.3% in 2020; the proportion of high-tech industries in the total output value of industries above designated size has increased from 21.56% in 2009 to 33.04% in 2020; the satisfaction rate of the employers to the graduates in the region has reached 72% overall, but the satisfaction level of the employers to the graduates in the region has reached 72% overall. The overall satisfaction of employers with regional graduates reaches 72%, but the evaluation in terms of innovation ability, scientific research ability and foreign language ability is relatively low. Based on this, the study puts forward suggestions for optimizing industrial transformation by playing the role of government policy guidance, cultivating leading enterprises, promoting the construction of industrial parks and adjusting the industrial structure, and constructs the path of high-quality supply of talents under the AGIL model from the three dimensions of optimizing the top-level design, rational allocation of resources and collaborative nurturing between schools and enterprises, which provides a frame of reference to promote the synergistic development of regional industrial transformation and the supply of talents.
The current digital media have problems such as ambiguous communication orientation, uneven content quality and stereotyped discourse patterns, which not only affect the communication effect of the media, but also limit its sustainable development. This study explores the application strategy of deep generative model in digital media content generation and communication effect optimization. The study proposes a variational digital media content generation model based on adversarial training (VAE-IAT), which combines the advantages of variational self-encoder and generative adversarial network to realize the generation of high-quality digital media content through the collaborative work of three modules, namely, encoder, generator, and discriminator; and at the same time, it constructs three optimization paths to enhance the communication effect, including improving communication precision, deepening content production, and strengthening the interaction with the audience. The experiments are conducted with three datasets: MNIST, SVHN and CelebA, and the results show that the VAE-IAT model exhibits excellent generation ability on all three datasets, and the FID scores are maintained below 6, which is significantly better than that of the control model. The results of the dissemination effect validation experiment show that the experimental group reaches significant differences with P-values of 0.002, 0.007, 0.003, and 0.005 for the four dimensions of media comments, media retweets, media interactions, and media likes, while the control group does not show any significant differences. The results of the study confirm that the digital media content generation technology driven by deep generative model can effectively improve the quality of content, and the communication optimization path constructed based on it can significantly improve the communication effect of digital media, which provides new technical support and theoretical guidance for digital media content creation and communication strategy.
With the development of digital technology, digital image art as an emerging art form is reshaping people’s perception of space and time. Artificial intelligence technology provides a key impetus for digital image art, revolutionizing the means of artistic creation. This study explores the expression of time consciousness and symbolic space in digital image art in the digital image era, and proposes an interpretation method based on computer vision technology. The purpose of the study is to enhance the spatio-temporal expression of digital image art through computer vision technology and realize the effective integration of time consciousness and symbolic space. Methodologically, the article proposes a dual-stream spatio-temporal fusion algorithm for digital images based on Swin Transformer, which is divided into three modules, namely, temporal feature extraction network, spatial feature extraction network, and fusion network, with information optimization through the CBAM module, and feature processing through the RB module, and ultimately realizes the deep-learning-driven creation of digital image art. The results show that the proposed algorithm performs well in the visual interaction of digital image art, and its root mean square error, peak signal-to-noise ratio and structural similarity reach 1.217, 46.841 and 0.943, respectively, which are far superior to the image segmentation algorithm, the cyclic differential filtering algorithm, and the focusing shape restoration algorithm with robust focusing volume regularization. In addition, the running time of this algorithm is only 2.07 seconds, which is more than 50% shorter than other algorithms. The Swin Transformer-based dual-stream spatio-temporal fusion algorithm for digital images provides technical support for the expression of time consciousness and symbolic space in digital image art, which can effectively meet the requirements of digital image art design, promote the deep integration of digital image art and computer vision technology, and provide users with a more wonderful visual experience.
Steel fiber blending can effectively improve the performance of recycled concrete, but the change rule of compressive strength under different loading conditions is complicated. This paper investigates the compressive performance of steel fiber reinforced recycled concrete under different loading conditions and establishes a prediction model based on BP neural network. The study selected apparent density of recycled coarse aggregate, water absorption, steel fiber parameters, cement dosage, water-cement ratio, sand rate and recycled coarse aggregate substitution rate as input parameters, and slump, 28d compressive strength and elastic modulus as output parameters. The model was trained by 7-20-3 network structure with trainlm function. The results show that: the prediction accuracy of the constructed BP neural network model is high, and the overall root-mean-square error is only 0.8671%, which has a good generalization ability; when the water-cement ratio is 0.66, the overall compressive strength of concrete decreases with the increase of the substitution rate of the recycled coarse aggregate; the compressive strength of granular shaping recycled coarse aggregate concrete is higher than that of the simple crushed recycled coarse aggregate concrete; the simple crushed steel fiber recycled concrete has the optimum water-to-cement ratio (0.45) was higher than that of particle shaped steel fiber recycled concrete (0.4); the compressive strength of particle shaped steel fiber recycled concrete was the greatest within the range of water-tocement ratios from 0.35 to 0.4. The model reliably reflects the influence of steel fiber admixture, recycled aggregate properties and water cement ratio on the compressive strength of concrete, which provides a scientific basis for the actual proportion design.
The application of high-performance computing technology in product quality testing can improve enterprise productivity and product quality, creating conditions for the development of new quality productivity, which needs to be supported and guided by economic policy innovation. This study explores the potential of highperformance computing technology, especially the application of random forest model in product quality inspection for the improvement of new quality productivity and economic policy innovation. By constructing a product quality inspection system based on the random forest model and applying it to enterprise production practice, the impact of high-performance computing on enterprise productivity and economic efficiency is analyzed. The study uses a combination of experimental validation and enterprise case study to comparatively analyze the changes in the economic indicators of enterprises before and after the application of the technology. The results show that the product quality inspection system based on the random forest model shortens the average beat time of the enterprise by 28.56%, and the fault prediction accuracy rate reaches 98.54%; after the implementation of highperformance computing technology in enterprise A, the return on net assets in 2024 is 16.97% higher than the industry average, and the inventory turnover rate increases to 10.13 times. Based on the empirical analysis, this paper proposes three economic policy innovation paths, namely, optimizing the design of tax incentives, adjusting the structure of fiscal science and technology investment and enhancing the synergy of industrial support policies, in order to support the application of high-performance computing technology in a wider range of fields and promote the development of new-quality productive forces, which provides a theoretical basis for the formulation of relevant economic policies.
Slope stability is directly related to engineering safety, and the nonlinear action mechanism of groundwater infiltration, as an important factor affecting slope stability, still needs in-depth study. Based on the numerical simulation method of FLAC3D, this study systematically analyzes the mechanism of nonlinear influence of groundwater infiltration on slope stability, and investigates the influence of different water level heights and inclination angles of structural surfaces on the slope safety coefficient. The study used Mohr-Coulumb model to construct the slope analysis model, and combined with Darcy’s law and finite element strength reduction method to calculate the slope stability. The results show that: when there is no structural surface, the slope safety coefficient decreases from 1.39 to 1.00 when the water level rises from 50m to 85m; when there is a structural surface, the slope safety coefficient of the structural surface inclination of 15° decreases by 0.67 with the rise of the water level, and decreases by 0.49 when the structural surface inclination of 20°; when the water level reaches 85m, the slope safety coefficients of the structural surface inclination of 15° and 20° decrease by 0.52 and 0.49 respectively. When the water level reaches 85 m, the coefficients of safety are 0.52 and 0.69 for 15° and 20° of structural surface inclination, respectively; the slope stability coefficient increases from 1.08 to 1.49 when the depth of groundwater level increases from 10 m to 30 m. The study confirms the significant effect of the position of structural surface within the slope on the slope safety coefficient, and clarifies the nonlinear relationship between the change of groundwater level and the stability of slopes. Based on the results of the study, control measures such as increasing hydrogeological investigation, strengthening hydrological monitoring, adopting engineering means of seepage control and strengthening drainage diversion are proposed, which provide theoretical support for slope stability design and disaster prevention.
Dance theater performance space layout directly affects the performance effect and audience experience, and traditional layout methods are difficult to balance practicality and aesthetics. In this study, a layout optimization method based on multi-dimensional scale computational analysis is constructed to address the coordination and appropriateness problems of dance drama performance space layout. Firstly, laser point cloud technology is used for three-dimensional modeling, and contour lines are extracted by Alpha Shapes algorithm to establish a multiobjective optimization model including land suitability, spatial compactness and conversion cost. Then the split-tree genetic algorithm is used to solve the optimization problem of spatial layout for dance performance, and the layout optimization is realized through the steps of chromosome encoding and decoding, fitness function construction and mutation operation. The results show that through 500 iterations, the comprehensive objective function Z decreases from 53.09 to 13.29, a year-on-year decrease of 81.21%; with different objective weights, as the weight coefficient increases from 0.1 to 0.9, the objective function decreases from 29.45 to 4.39, a decrease of 85.74%; compared with the Compared with the reference method, the maintenance cost of this method is reduced to 119,000 RMB/year, and the ROI is increased to 14.7%. The validation test shows that the optimized spatial layout response index of the dance performance is stable without fluctuation, and the layout rationality index is stable at 0.8, which is significantly better than other methods. The multi-dimensional scale calculation analysis provides a scientific basis for the dance drama performance space layout, taking into account the practicality and aesthetics.
Traditional dance drama creation mainly relies on choreographers’ experience, which has problems such as limited innovativeness and low efficiency of movement design. This study explores the use of artificial intelligence image processing methods to enhance the creation of dance drama. A binocular stereo vision depth motion camera is used to capture the dance performer’s movements, combined with wavelet transform for multi-scale filtering of dance video images, background subtraction is applied to extract dance movement features, and a dance automatic generation system based on Seq2Seq model is constructed. The system takes audio features as input, and realizes the matching generation of dance and music through the generator, discriminator and self-encoder working together. The experimental results show that the joint angle changes of the dance movements generated by this method are smoother, and the average value of knee pitch angle is 1.315 rad, which is only 1.15% different from the initial set value of 1.30 rad; in the objective evaluation index, the method achieves a beat coverage rate of 26.4%, and a diversity index of 42.1, which is significantly improved compared with the traditional method; in the subjective evaluation, 15 subjects showed a positive response to this method’s realism and musical style consistency of the generated dances were highly evaluated by 15 subjects. The study proves that the artificial intelligence image processing method can effectively improve the stability, authenticity and innovation of dance movements in the creation of dance dramas, providing a new technical path for the creation of modern dance dramas.
Medical English teaching has problems such as language and content detachment and insufficient cultivation of practical application ability, which require innovative assessment methods. This study adopts clustering-based multidimensional data processing technology to construct CSSAQP algorithm to analyze and evaluate medical English teaching data. The algorithm deals with the extreme value problem through K-Means clustering, and adopts a two-phase strategy: the pre-constructed sample phase and the query execution phase for stratified sampling and precise analysis of teaching data. The experimental results show that on the medical English vocabulary teaching dataset (about 0.5 billion data), the query accuracy of the CSSAQP algorithm reaches 0.0122%, 0.0141%, and 0.0085% for the SUM, COUNT, and AVG metrics, respectively, which is better than the existing methods. Meanwhile, the algorithm excels in query response time, with SUM, COUNT, and AVG query times of 1.52 seconds, 1.24 seconds, and 1.34 seconds respectively, realizing real-time response. The research results provide an accurate assessment tool for medical English teaching, help optimize the structure of medical English courses and the construction of teaching resources, and provide data support for cultivating medical talents with a global perspective.
English translation teaching faces the challenge of insufficient semantic expression precision, and traditional teaching methods are difficult to capture cross-linguistic semantic nuances. In this study, a deep semantic space model is constructed based on the three principles of relevance, consensus and complementarity, which extracts image features through techniques such as transfer learning, feature adaptation and convolutional neural network, and utilizes bag-of-words model and recurrent neural network for text semantic learning. The experiments validate the model performance on two datasets, TGIF and MSVD, and the results show that on the TGIF dataset, the deep semantic spatial model (DSS) proposed in this paper achieves the R@1, R@5, and R@10 metrics of 9.97, 25.97, and 34.53, respectively, in the video dimension of text retrieval; and the corresponding metrics in the video retrieval of the video dimension are, in order, 15.06, 30.73, 41.22, significantly better than the comparison algorithm. Teaching application experiments show that the translation scores of students in the experimental class with the model-assisted teaching (12.14±1.76) are significantly higher than those of the control class with the traditional teaching method (9.73±2.46), and the difference is statistically significant (P<0.001). The study shows that the deep semantic space model based on multimodal learning can effectively improve the semantic expression accuracy in English translation teaching, which provides new technical support and methodological reference for the reform of English translation teaching.
As a national intangible cultural heritage, the Maonan Flower Bamboo Hat is a cultural symbol inherited by the Maonan for thousands of years. The weaving process of flower bamboo hats is exquisite and complex, and the patterns are rich in ethnic characteristics. In the process of modern social development, traditional handcraft skills face challenges such as the reduction of inheritors and low efficiency of innovative design. The development of artificial intelligence technology provides a new path for the digital protection of non-heritage, and the combination of intelligent algorithms and traditional crafts can realize the innovative inheritance of cultural symbols. Purpose: To construct the Maonan flower bamboo hat design translation model based on artificial intelligence algorithm to realize the innovation of rattan weaving art and cultural symbols inheritance. Methods: Collecting and organizing Maonan flower bamboo hat image data, using histogram equalization technology for preprocessing, proposing PSO-PCNN (Particle Swarm Optimization-Parallel Convolutional Neural Network) image style migration model, and realizing design translation through multi-feature fusion and granularity matching. The model contains five convolutional modules, uses Gram matrix to extract style features, and constructs fusion loss function to optimize image generation. RESULTS: The PSO-PCNN model reaches 0.784 in MSSIM, 19.61 in PSNR, 75.43 in FID, and 0.67 in KID, which are better than the comparison model in all indicators. User evaluation showed that 88% of the subjects thought that the translated pattern continued the traditional style (mean score of 4.18), and 80% thought that it was in line with contemporary aesthetics (mean score of 4.06). In the participatory design satisfaction survey, the satisfaction of all four cultural and creative products exceeded 70%. Conclusion: The PSO-PCNN model effectively realizes the innovative translation of the cultural symbols of the Maonan Flower Bamboo Hat, which not only retains the traditional characteristics but also meets the modern aesthetic needs, providing a feasible solution for the digital inheritance of non-heritage.
The process of intelligent library construction is advancing, and readers’ demand for personalized information services is growing. Traditional recommender systems do not fully consider the temporal characteristics of users’ borrowing behavior, resulting in limited recommendation accuracy. Meanwhile, challenges such as user interest evolution and cold-start problem constrain the improvement of library service quality. OBJECTIVE: To construct an intelligent library personalized information recommendation system based on temporal data analysis in response to the problem of underutilization of temporal features in library personalized recommendation systems. Methods: Adopt convolutional neural network for local characterization of time-series data, and extract local features of user-item scoring matrix through normalization and similarity calculation; design personalized recommendation model based on BiLSTM, integrate Embedding layer and multilayer perceptron, and extract features of readers’ borrowing preference using bidirectional long and short-term memory network; construct recommendation system with B/S architecture, adopt MVC three-layer architecture and J2EE technology to realize the system functions. RESULTS: The experiments show that in the sparsity interval of 0.7-0.9, the accuracy of CNN local similarity prediction is higher than the Euclidean distance and Pearson correlation coefficient methods; the BiLSTM model achieves the optimal performance at the learning rate of 0.001, 2-layer network, and batch size of 256, with the MAE value of 0.787; compared with the UserCF, ItemCF and ConvMF algorithms, the proposed algorithm performs optimally in 10 experiments. CONCLUSION: The recommender system based on temporal data analysis effectively improves book recommendation accuracy and provides technical support for personalized library services.
Piano learning effect is closely related to the allocation of practice time, but most piano learners lack scientific practice time management strategies. Based on the data envelopment analysis method, this study investigates the evaluation of piano practice time allocation and the strategy of effect improvement. Piano learners’ practice data were obtained through a questionnaire survey, quantitatively evaluated using the interval super-efficiency DEA model, and the learners’ practice habit characteristics were analyzed. The results of the study show that among the 21 learners sampled, only 19.05% of the learners’ piano practice time allocation is interval DEA effective, 52.38% is interval DEA partially effective, and 28.57% is interval DEA ineffective, indicating that there is room for optimization of piano practice time allocation for most of the learners. It was found that 34.26% of the learners could insist on practicing the piano every day, and 45.53% of the learners maintained an average daily practice time of about 1 hour. For the practice habit, only 25.98% of the learners would practice hand muscles and techniques, and 20.59% of the learners had the habit of making practice notes. Based on the evaluation results, this study proposes strategies to improve the effectiveness of piano practice: strengthening fingering practice and reflection, scientifically controlling practice time, focusing on technical difficulties, and actively learning from others’ experiences. These strategies are of great significance in optimizing piano learners’ practice methods and improving practice efficiency.
As a traditional Chinese handicraft, the pattern design of lacquer ware has important cultural value and artistic charm. Traditional lacquerware pattern design mainly relies on manual production, which has problems such as low efficiency and poor precision. The development of modern computer vision technology provides new ideas for the automatic identification and optimization of lacquerware patterns. It is of great significance to inherit and develop lacquer art by realizing automatic detection and classification of lacquer patterns through image recognition technology, and optimizing and innovating the geometric form of the patterns by combining with intelligent algorithms. Objective: Aiming at the problems of low efficiency and lack of innovation in traditional lacquerware pattern design, this study proposes a method of optimizing the geometric form of lacquerware patterns based on image recognition technology to realize automatic detection, classification and innovative design of lacquerware patterns. Methods: Improved Canny algorithm is used for lacquerware pattern contour detection, and the detection accuracy is improved by bilateral filtering, multi-directional Sobel template and interactive threshold detection based on Otsu, etc.; HOG feature extraction and SVM classifier are used to realize automatic detection of lacquerware patterns; optimization and innovation of the geometric form of the lacquerware patterns are carried out based on BP-GA algorithm; and virtual reality technology is used to carry out the Perceptual imagery evaluation experiment. Results: The experimental results show that the lacquerware pattern detection model proposed in this paper achieves 94.80% mAP in the recognition of 7 pattern types, among which the best effect is achieved in the detection of plant patterns, with 96.09% mAP among classes; in the pattern classification task, the accuracy of the model in this paper reaches 94.73%, with 94.14% F1 score; the optimized lacquerware patterns are more effective in the recognition of the sensual imagery in the categories of “hip” and “chic”; and the optimized lacquerware patterns are more effective in the recognition of the sensual imagery in the categories of “new” and “chic”. Conclusion: The method in this paper effectively improves the recognition accuracy and classification performance of lacquerware patterns, and the optimized pattern geometry of the BP-GA algorithm is more in line with the modern aesthetic demand, which provides technical support for the digital protection and innovative development of traditional lacquerware art.
With the deepening of physical education reform, students’ physical fitness training faces problems such as non-standardized movements and single training method, and the use of data analysis and model construction can effectively improve the effect of physical fitness training and help improve the quality of physical education teaching in colleges and universities. In this study, principal component analysis is used to reduce the dimensionality of students’ physical fitness data, and a training action detection model is constructed by combining time evolution modeling and multi-case learning to standardize students’ physical fitness training actions. Sixty sophomore students from a university were divided into experimental and control groups, and the experimental group applied the action detection model designed in this paper to carry out physical fitness training. The results showed that: the detection accuracy of the three physical training movements (pull-up, 50-meter run, sit-up) were kept above 90%; after the experiment, the indicators of lung capacity (4383±661.29 ml) and sit-up (45±9.07) of the experimental group were significantly better than those of the control group (3317±1307.35 ml, 36±14.28); through the principal component comprehensive evaluation modeling, the comprehensive physical fitness qualities of the experimental and control groups were 2.37 and 1.75, respectively, with significant differences. The study confirms that the physical training movement detection model based on multivariate statistical analysis can effectively identify and correct students’ training movements, improve the accuracy of training, promote the overall improvement of students’ physical fitness level, and provide new ideas for the reform of physical education teaching in colleges and universities.
The water diversion project in central Yunnan is a large-scale engineering project related to Yunnan people’s livelihood, in which the welding quality of steel pipe directly affects the overall safety of the project. The traditional welding process parameters optimization method is inefficient and complex, and it is difficult to achieve multi-objective optimization. In order to optimize the welding process parameters of steel pipe in Yunnan-China water diversion project and improve the project quality, this study proposes a multi-objective optimization method based on the improved particle swarm optimization algorithm. The multi-objective optimization of steel pipe welding process parameters was realized by establishing the correlation model between welding power, welding speed, defocusing amount, swing amplitude, swing frequency and performance indexes such as melting depth, depth-towidth ratio, porosity, etc., combined with the genetic optimization neural network prediction model. The results show that the optimal combination of process parameters obtained by the improved particle swarm algorithm is 4.75 kW of welding power, 2.63 m/min of welding speed, 1.05 mm of out-of-focus, 1.78 mm of swing, and 90 Hz of swing frequency. The welding melt depth obtained by using this parameter combination reaches 8.915 mm, with a depthto-width ratio of 0.729 and a porosity of only 1.137%, which is better than the traditional optimization algorithm in all performance indicators. In engineering practice, the welding process after applying the improved particle swarm algorithm realizes the qualification rate of 99.88% for steel pipe weld seam at one time, the qualification rate of 99.91% for longitudinal seam, 99.85% for circumferential seam, and the qualification rate of 100% for delivery inspection. The study proves that the improved particle swarm algorithm has the characteristics of high efficiency and high precision in the optimization of steel pipe welding process parameters, which can provide reference for similar projects.
Traditional Chinese language teaching methods are difficult to meet students’ individualized needs, while fuzzy logic inference technology can accurately assess learners’ characteristics, provide targeted learning resources, and effectively improve learning outcomes. In this study, fuzzy logic inference technology is used to establish a fuzzy control rule system to predict learners’ performance by taking four dimensions, namely, average daily online learning time, average daily vocabulary growth, average answering time, and total vocabulary mastered, as input variables, and then matching Chinese vocabulary learning resources of corresponding difficulty. The experiment selects 60 Chinese majors in a university as the research subjects, randomly divided into the experimental group and the control group of 30 people each, and verified through a 9-month teaching experiment. The results showed that the experimental group using the personalized learning path based on fuzzy logic reasoning was significantly better than the control group with traditional teaching methods after the teaching intervention (P=0.003<0.05). The within-group comparison analysis showed that the students' Chinese test scores before and after the intervention in the experimental group exhibited significant differences, while the control group did not produce significant changes. Through the application of fuzzy set construction and fuzzy relationship matrix, this study successfully applies fuzzy logic reasoning technology to the field of Chinese language education, which confirms the effectiveness of this method in enhancing learning effects and provides new technical support and practical reference for personalized teaching in Chinese language education.
Large-span steel structure is widely used in modern buildings because of its advantages such as light weight and high strength, but its large span and small damping characteristics make it prone to excessive deformation and dynamic response under wind load. This paper takes a large-span steel truss structure of a stage play as an example, analyzes the dynamic characteristics of the wind-resistant performance of the large-span steel structure by using the finite element method and puts forward an improved design scheme. The study adopts 3D3S and ANSYS software to establish a finite element model of the steel structure, and analyzes the static and dynamic responses of the structure in different wind directions and wind speeds, and explores the effects of wind loads on the structural displacements, static three-dimensional forces and stability. The results show that: when the wind speed reaches the critical value of 170m/s, the transverse displacement in the span of the main girder increases from 41.22mm to 66092.45m, presenting the phenomenon of displacement dispersion, and the structure is destabilized and damaged; the structural instability pattern varies in different wind angles of attack, with a combination of spatial bending and torsion in the angle of attack of 0°, and mainly transverse bending instability in the angle of attack of ±5°; and the results of the component load bearing capacity calculation show that The results of load capacity checking show that all the main steel members of this project meet the performance target of not yielding under the action of 16.5 grade typhoon. Based on the analysis results, the study proposes the improved design scheme of using triangular tube truss columns and beams to form a spatial portal transverse bearing whole, and optimizes the key construction technology, which effectively improves the wind resistance performance of the structure and provides theoretical basis and technical support for the wind resistance design of large-span steel structures.
Insufficient accuracy of demand forecasting in current enterprise supply chain management leads to inefficient inventory management and high cost. In this study, we constructed an enterprise supply chain demand forecasting model based on the random forest algorithm and designed an inventory cost control system combined with the particle swarm optimization algorithm to solve the cost control problem caused by inaccurate forecasting in enterprise inventory management. The optimal feature subsets are screened by two feature selection algorithms, MCMR and rMCMR, and Random Forest is used to forecast the demand for three types of FMCG products in Company K. PSO-RF is used to optimize the inventory cost control. The results show that the random forest prediction model has the best prediction accuracy of 93.3% in the comparison of multiple classification algorithms, and the training time is only 26.148 seconds; in terms of inventory cost control, the fulfillment cost rate of Company K continues to decline after the adoption of big data technology, and reaches a historical low of 6.286% in 2021, with a significant increase in inventory turnover rate. Company K’s user satisfaction score reaches 4.548, with a platform feedback rate of 100%, a comprehensive rating of over 0.9, and a “recommended order” rating. The study proves that Random Forest algorithm combined with PSO optimization can effectively improve the accuracy of enterprise supply chain demand forecasting, optimize inventory cost control, and enhance the operational efficiency and user satisfaction.
Modern enterprises face a complex and changing market environment, and financial performance, as an important manifestation of the enterprise’s operating results, its assessment and optimization are crucial to the sustainable development of the enterprise. This study constructs a financial performance assessment model based on multiple regression analysis and data envelopment analysis (DEA) to analyze the financial data of Enterprise A from 2015 to 2024. Multiple linear time series regression model is used to analyze the impact of investment level, technological innovation, financing constraints, executive team characteristics, and shareholding ratio of major shareholders on financial performance; C²R model and BC² model are used to assess the technical efficiency and scale efficiency of the enterprise; and 4-dimensional 16-indicator evaluation system containing solvency, operating ability, profitability, and development ability is constructed. The results of the study show that the characteristics of the enterprise’s executive team and technological innovation have a positive effect on financial performance, and the investment level, financing constraints and the proportion of major shareholders’ shareholding have a negative effect on financial performance; Enterprise A is ranked No. 1 in terms of comprehensive score among 11 enterprises in the same industry, with the profitability factor score of 1.814 ranked No. 1; the value of the comprehensive efficiency in 60% of the years during the period of 2015-2024 is No. 1 and The performance is excellent; however, it ranks 11th with a score of -1.279 for the operating ability factor and 7th with a score of -0.209 for the growth ability factor, with obvious shortcomings. The conclusion of the study shows that enterprises should improve their financial performance by adjusting capital structure, enhancing operating efficiency and optimizing cost-to-income ratio, which provides a scientific basis for the formulation of corporate financial strategies.
As an important carrier of Chinese culture, Calligraphy Seal Engraving carries deep historical and cultural connotations. In this study, we propose a generative model-based method for reconstructing calligraphic seal cutting strokes and designing 3D virtual display. The consistent point set drift (CPD) algorithm is used to match the stroke contour, combined with an autoregressive model to generate the calligraphic seal cutting texture, construct an asymmetric rhombic stroke model to characterize the strokes, and develop a 360-degree immersive 3D virtual display system. The experimental results show that the proposed method achieves 0.9437, 0.9531 and 0.9542 in SSIM, FM and S-measure, respectively, which are significantly better than the traditional OTSU method of 0.8165, 0.8596 and 0.8648. In the single dataset test, the proposed method obtains the best performance on 10 different inscriptions, among which the SSIM value of 0.9737 is achieved on the record of Miaoyanji Temple, and the SSIM value of 0.9542 is achieved on the record of Miaoyanji Temple. The SSIM value reaches 0.9765 and 0.9042 on the Shenzejun stele. The audience experience evaluation of the virtual display system shows an overall satisfaction score of 89.039, with the highest score of 89.912 for the narrative experience. Through the organic combination of stroke reconstruction and 3D virtual display, this method effectively realizes the digital protection and cultural inheritance of calligraphy seal cutting works, and provides a new technical path for the modernized display of traditional culture.
Machine translation technology has been developing rapidly in general-purpose fields, but accurate translation of specialized terminology is still difficult. In some specialized fields, the accuracy of terminology translation has a significant impact on the overall translation quality, and specialized improvement methods for terminology translation need to be developed. In this paper, we propose an English translation neural network model that incorporates terminology information with the aim of improving the English translation of specialized terminology in computer translation. Taking the Transformer model with self-attention mechanism as the baseline, the model is optimized through three key steps: firstly, the bilingual corpus is customized with terminology dictionaries for terminology segmentation; secondly, the word vectors are trained on the general corpus and the specialized corpus by combining two methods, Glove and Word2vec, respectively, and are used for the initialization of parameters in model embedding layer; and lastly, for the problem of unregistered words, the introduction of the external terminology dictionary for lookup replacement. The experimental results show that on the electrical engineering domain corpus, the BLEU value of the proposed model reaches 35.1%, which is 1.36% higher than that of the baseline model; during the training process, the performance advantage of the present model continues to be stable when more than 10,000 steps are taken; compared with the other seven translation models, the present model obtains the optimal translation effect by increasing the training time by only 5.86%. The experiment proves that the English translation neural network model fusing terminology information can effectively improve the translation quality of specialized terminology, and provides a new solution for machine translation in vertical domains.
The arrival of the new media era presents new challenges and opportunities for college students’ mental health education. Modern college students face multiple pressures such as academics, employment and interpersonal relationships, and psychological problems are becoming increasingly obvious. This study assessed the implementation effect of college students’ mental health education in the new media environment based on regression analysis. Data were collected through a questionnaire survey, 250 questionnaires were distributed and 226 valid questionnaires were collected, with a recovery rate of 90.4%. The evaluation model was constructed using principal component analysis and multiple linear regression analysis, and three common factors were extracted from 13 independent variables: teacher factor, basic factor and teaching factor, and mental health enhancement factor, with a cumulative variance contribution rate of 81.692%. Regression analysis showed that the R² of the model was 0.658, the adjusted R² was 0.584, and the F value was 20.825, which verified the validity of the model. The results of the assessment showed that the overall rating of the implementation of mental health education in the sample universities was 78.62, with the highest score at level 2023 (82.33), the second highest at level 2022 (79.71), and the lowest at level 2021 (74.46). It was found that the variables X3 (mental health and quality), X7 (evaluation of the teaching process), and X8 (professional competence of teachers) statistically significantly affect the educational effectiveness. Based on the results of the study, countermeasure suggestions such as innovating teaching methods, taking students as the main body, utilizing new media tools, carrying out practical activities, improving the quality of teachers and improving the evaluation system are proposed to provide reference for the improvement of the implementation effect of mental health education in colleges and universities.
Consumer demand identification is the core problem of modern business intelligence, and traditional methods are difficult to effectively integrate heterogeneous data from multiple sources. With the explosive growth of data scale on e-commerce platforms, how to accurately recognize consumer demand from multimodal data such as massive reviews and product information has become a key challenge. Existing demand identification methods are deficient in feature extraction and classification accuracy, and lack the ability to deeply integrate multimodal data, so there is an urgent need for more accurate and efficient technical means to realize the accurate identification of consumer demand. Purpose: Aiming at the problems of low accuracy and limited data fusion capability of traditional consumer demand identification methods, we propose a consumer demand identification method based on K nearest neighbor algorithm and multimodal data fusion. Methods: Web crawler technology is used to obtain 11,896 Jingdong Mall review data, and 10,861 valid texts are obtained after preprocessing; Jieba partitioning and TF-IDF algorithm are used to extract key features, and Particle Swarm Optimized K Nearest Neighbors (PSO-KNN) classification model is constructed to integrate multimodal data, such as semantic analysis and commodity information, for demand identification. Results: the proportion of positive consumer evaluations higher than 0.5 is 86.7%, the price of goods is mainly concentrated in the range of 10-20 yuan, and the goods with PH value distribution in the range of 3.5-4.5 are the most popular; compared with the traditional KNN and SVM algorithms, the average absolute percentage errors of PSO-KNN model are reduced by 1.87% and 3.18%, respectively. Conclusion: The proposed method effectively improves the accuracy of consumer demand identification and provides scientific support for enterprise precision marketing and product optimization decision-making.
As an important initiative to deepen the reform of education system, the integration of industry and education plays a key role in cultivating high-quality applied talents. CIPP model, as a decision-oriented evaluation model, can assess the whole process of the integration of industry and education in four dimensions, namely, background, input, process and output. This paper constructs the evaluation system of industry-teaching integration and collaborative education based on the CIPP model, and adopts the combination of hierarchical analysis method and cloud model to evaluate and analyze the effect of industry-teaching integration in industrial colleges. Firstly, the CIPP model is used to construct a three-level evaluation index system from the four dimensions of safeguard measures, resource allocation, cultivation process, and quality effectiveness, and the weights of each index are determined through the hierarchical analysis method, in which the weight of the cultivation process of the integration of industry and education is the highest at 0.4131, and the weight of the resource allocation of the integration of industry and education is the lowest at 0.1471, and then the cloud model is constructed to evaluate the grading standard, and the evaluation result is classified into five levels: excellent, good, medium, pass, and poor five grades, and establish the corresponding cloud feature parameters. Taking the engineering management major of HZ University as the empirical object, 10 experts were invited to conduct the evaluation, and the comprehensive cloud eigenvalue of the effect of industry-teaching integration of the major was (8.8327,0.5216,0.3321) through the calculation of the similarity of the cloud model. The results show that the similarity between this program and the good grade is 0.8957, and the similarity between this program and the excellent grade is 0.7125, and the overall evaluation results are located between good and excellent and closer to the good grade. The study shows that the evaluation method based on the AHP-CIPP cloud model can effectively quantify the effect of collaborative education in the integration of industry and education, and provides a scientific theoretical basis and practical analytical tool for the evaluation of the quality of the integration of industry and education in colleges and universities.
As an indispensable woodwind instrument in the symphony orchestra, the clarinet, with its wide range and rich timbral variations, is regarded as “the instrument closest to the human voice”. In symphonic concerto, the clarinet plays an important role, not only in creating dramatic conflicts and interpreting the characteristics of woodwind instruments, but also in adding special colors to the music. This paper takes the relationship between clarinet technology and symphonic concerto in music education environment as the research object, and constructs a clarinet music classification model based on machine learning. The study adopts the feature extraction method combining Mel Frequency Cepstrum Coefficient (MFCC) and Perceptual Linear Prediction (PLP) to construct a selfconstructed symphonic concerto dataset, which contains audio of six instruments, including violin, viola, cello, oboe, clarinet, flute, etc., with a total of 1.25 GB of data, and a playback time of about 7.46 hours. Subsequently, the Improved Particle Swarm Optimization algorithm (IPSO) is proposed to optimize the classification model of Support Vector Machine (SVM) to achieve accurate recognition of clarinet music in symphony concertos. The experimental results show that the MFCC-PLP algorithm is significantly better than other feature extraction methods with the number of times the feature items are selected close to 51 times in both the training set and the test set.The IPSOSVM model achieves a classification accuracy of 99.09% for the clarinet music, and the mean of the overall music classification correctness is 97.43%, with a classification time of only 1.67 s. This method can be used to recognize the clarinet music in the symphony concerto, which is the most important music in the symphony concerto. The method provides an effective technical support for the intelligent recognition and performance optimization of clarinet music in symphonic concertos.
In the era of experience economy, film and television art, as an important way to satisfy users’ entertainment needs, has a direct impact on the communication effect of its character emotion expression ability. This paper constructs a digital character emotion expression framework by taking the PAD three-dimensional emotion space as the theoretical basis and combining the first-order motion model and generative adversarial network. The study adopts the MATLAB development environment to verify the effectiveness of the emotion calculation method, evaluates the quality of digital character synthesis through experiments based on the TensorFlow framework in the Linux environment, and conducts an experience test of emotional characteristics among 80 college students. The results show that: the accuracy of the emotion calculation method proposed in this paper reaches 84.78%, which is 14.86% and 5.16% higher than that of OCC and fuzzy inference methods, respectively; the peak signal-to-noise ratio of the constructed FOMM-GAN digital character synthesis model reaches 35.63, with an average gradient of 5.96, and the synthesis time is 94.27ms, which is significantly better than the comparison method; the subjects’ perception of the digital character’s emotion The mean values of the subjects’ experience of the degree of emotional perception, adaptability, anthropomorphism, engagement and initiative were 1.654, 1.688, 1.538, 1.513 and 1.484, respectively, indicating that the digital characters have a high ability to express emotions. The study confirms that the digital character modeling method based on PAD space and FOMM-GAN can effectively enhance the emotional expressiveness of film and television characters, and provide new ideas for film and television art creation.
Enterprise financial management in the digital era faces the problems of insufficient data transparency and single performance evaluation method. Effective use of data visualization technology can enhance financial transparency, while the performance evaluation model based on factor analysis can comprehensively consider multi-dimensional financial indicators, provide more comprehensive and objective financial performance evaluation for enterprise decision makers, and help enterprises optimize resource allocation and improve management efficiency. This study strictly follows the three principles of comprehensiveness, importance and operability, and selects 12 key financial indicators to construct the evaluation system, covering four dimensions of corporate solvency, profitability, operational capability and development capability. By applying KMO test (0.8321) and Bartlett’s sphericity test (significance of 0.000) to the data of 66 beverage manufacturing companies in A-share, the data were verified to be suitable for factor analysis. The study extracted five public factors, which cumulatively explained 85.22% of the information of the original variables, and conducted a longitudinal comparative analysis of GLG’s financial performance from 2020 to 2024. The results show that the composite score of Gree Electric’s financial performance shows a decreasing trend since 2021 (0.43863), and falls to a five-year low in 2024 (0.36673); among them, profitability is the main constraint on corporate performance improvement, and the scores are all negative during the five-year period, suggesting that there is significant room for improvement in this area. The data visualization system constructed in the study can monitor the financial status of enterprises in real time and improve the compliance and safety of decision-making, while the evaluation model based on factor analysis provides a specific direction for the improvement of enterprise financial performance, which can effectively guide the optimization of enterprise financial management and strengthen the effectiveness of performance evaluation.
Dynasty novels are the golden period of Chinese literary development, in which dress metaphors, as an important means of literary expression, contain rich cultural connotation and social significance. This study focuses on dress metaphors in Ming Dynasty novel texts, and constructs a semantic network of dress metaphors through the improved TF-IDF algorithm, latent semantic analysis method, and semantic network analysis method to mine the hidden information in Ming Dynasty novel texts. The study constructed a corpus containing 4580 sentences, including 2677 non-metaphorical sentences and 1903 metaphorical sentences. The quantitative calculation of the dress words by LSA method reveals that the dress words with the highest correlation in the original and metaphorical meanings are the tonic and the wuzi cap, with the correlation of 0.114241 and 0.124387, respectively. The analysis of Water Margin shows that the red headscarf, as a symbol of the resistance against oppression of the Liangshan heroes, has the highest frequency of appearing throughout the book, with a frequency of 218 times; and the wuzi cap, which symbolizes the bureaucratic system, and tonic appear 188 and 182 times respectively, reflecting the twists and turns of the characters’ fates in the work. The semantic network analysis further reveals the intrinsic connection between dress metaphors and the novel’s themes, and shows how dress words carry social and cultural information and changes in characters’ fates by means of metaphors. This study provides new computational methods and theoretical perspectives for analyzing the texts of Ming Dynasty novels, and helps to deepen the understanding of metaphorical expressions in Ming Dynasty literature.
Consumer behavioral decision-making process on the digital economy platform is complex and fuzzy, and traditional models are difficult to accurately reflect irrational consumer decision-making characteristics. This paper proposes a consumer behavior decision modeling method based on fuzzy logic and prospect theory to address the complexity of the consumer behavior decision-making process on the digital economy platform. Firstly, a consumer three-dimensional portrait system is constructed, and the consumer behavior data is analyzed in multiple dimensions by FCM clustering algorithm; secondly, a consumer multi-attribute behavioral decision-making model is constructed based on prospect theory, and an intuitive triangular fuzzy number is introduced for optimization, to overcome the limitations of the traditional model in dealing with the fuzzy decision-making information; lastly, a B2C e-commerce service whole-process evaluation index system is constructed by using the service blueprint method, and an evaluation index system for B2C e-commerce service whole-process evaluation is built through LDA topic extraction and LSTM sentiment analysis techniques to mine consumer behavior attributes and preferences. The experimental results show that the optimized model has an accuracy of 84.59% in the test of 120 commodity samples, which is 2.63% higher than that of the unoptimized model; the stability of the model prediction improves significantly with the increase of the sample size to 480 items. Tests based on 12 commodities show that the model predicted sorting matches the actual sales sorting well, with only 2 commodities not matching the sorting. This study provides new ideas for the analysis and prediction of consumer behavior on digital economy platforms, and has practical value for service quality evaluation and decision optimization of e-commerce enterprises.
National security education knowledge dissemination is an important means to enhance the security awareness of all people. In the digital era, social networks have become the main channel for knowledge dissemination, but the traditional dissemination model is difficult to accurately describe the information flow characteristics in social networks. Based on complex network theory, this study explores the dissemination law of national security education knowledge in social networks by improving the SIRI dissemination model, and proposes strategies to optimize the dissemination path. The study constructs an improved SIRI model containing three states of information unknowns, information disseminators and information ignorers, and introduces five key parameters: external social influence probability, internal network influence probability, immunization probability, direct immunization probability and external network influence probability. Based on the microblogging real data validation, the results show that the national security education tweets generated 325,622 retweets in the first 24 hours, accounting for 96.8% of the total retweets; after adopting the method of this paper, the peak of propagation decreased from 0.5342 to about 0.4, and the propagation speed was obviously slowed down. The study finds that digital media break through the geographical restrictions and realize the universal coverage of national security education; social platforms such as “two micro one end” build an efficient information exchange channel between the state and the nationals; and personalized content delivery supported by big data analysis and algorithms improves the relevance and attractiveness of national security education. This study provides theoretical basis and practical guidance for the dissemination of national security education knowledge, which is of great significance in promoting the dissemination of national security education for all.
In public environment design, landscape path planning and facility layout directly affect spatial function and aesthetic experience. Traditional methods are difficult to realize the optimal configuration in complex environments, which restricts the quality of environmental design. In this study, a landscape path planning and facility layout method based on the Improved Artificial Fish Swarm Optimization Algorithm (MCP-AFSA) for public environments is proposed. The search efficiency and path quality of the traditional artificial fish school algorithm in an obstacle environment are optimized by introducing two-way search and path smoothing strategies. Meanwhile, a public environment facility layout optimization model considering multiple objectives, service supply differentiation, demand precision and spatial condition refinement is constructed. The experimental results show that under the same accuracy requirements, the iteration number of MCP-AFSA algorithm is significantly lower than that of the standard PSO and GA algorithms, e.g., in the multi-peak function test, the minimum value of MCP-AFSA algorithm is infinitely close to 0 after 2,000 iterations, while PSO and GA algorithms stay at about 0.18 and 0.8, respectively. In the 150×150 simulation map, the average path score of the improved algorithm reaches 825.59, which is 9% higher than that of the traditional algorithm’s 757.45, and the path smoothing is significantly improved. In addition, in the significance test of public environment design indicators, the mean value of the proposed method is as high as 83.67%, which is much better than the comparison methods based on distance measurement (22.82%) and spatial growth simulation (45.55%). The synthesis shows that the proposed method has high practical value and application prospect in solving landscape path planning and facility layout problems in public environment design.
Ship manufacturing industry is facing serious challenges of cost control and budget management, and the traditional earned value analysis method is difficult to cope with the uncertainty in project schedule and quality evaluation. This study applies the fuzzy logic control technology to the traditional earned value method to construct a shipbuilding cost management and budget optimization model. By blurring the earned value index variables, introducing the triangular fuzzy function to deal with the progress data, and combining with the fuzzy comprehensive evaluation method to determine the risk rate, the accurate estimation and dynamic control of shipbuilding cost is realized. The constructed model is validated using Monte Carlo simulation method, and the results show that: the mean present value of cost of Scenario B with fuzzy earned value model is 9,632,500 yuan, which is 29.3% lower than that of Scenario A without the model; the operation cost and maintenance cost of Scenario B account for 81.9% and 17.8%, respectively, which are better than that of Scenario A’s 76.5% and 23.5%. In 56KBC shipbuilding project practice, the fuzzy earned value model accurately identifies the change point where the cost performance level in the 10th month decreases from an average of 1.2 to 0.75, which provides a key basis for project management decisions. The application of the model significantly reduces the deviation of cost estimation in shipbuilding projects, and provides enterprises with targeted measures to regulate cost deviation from organizational, economic and technical aspects. The fuzzy earned value model effectively improves the accuracy and reliability of shipbuilding cost management, and provides a practical tool for shipbuilding enterprises to realize budget optimization and cost control.
Educational quality assessment faces the challenge of diversifying students’ needs, and traditional assessment methods are difficult to accurately cope with individual differences. This study proposes an educational quality assessment and learning path design method that combines K-mean clustering and reinforcement learning. First, we construct a student user profile and establish a teaching quality evaluation system with four primary indicators and eighteen secondary indicators; then, we classify the student group by K-mean clustering, and determine the optimal number of clusters based on the sum of squared intra-group distances; finally, we use reinforcement learning algorithms to design a personalized learning path recommendation system. The empirical study collected the online education assessment scores of 30,000 students, and the cluster analysis showed that four groups of students were clearly characterized: the first group (10,144) had moderate learning pressure but poor memory; the second group (6,845) had high learning pressure but lacked motivation; The third category (7168) has extreme learning pressure and poor emotional control; the fourth category (5843) has good grades with little learning pressure but poor emotional control. Reinforced learning path recommendation experiments show that the system reaches a stable learning gain after 45 iterations and can generate different learning paths according to learners’ individualized needs. The results prove that this method can effectively identify the characteristics of student groups, provide learning paths that meet individual needs, and provide a feasible solution for intelligent and personalized teaching.
Information resource management systems driven by intelligent algorithms are gradually changing the regional economic development model. Collaborative filtering algorithm optimizes resource allocation through user behavior records and provides accurate decision support for regional economic development. In this study, an information resource management system based on collaborative filtering algorithm is constructed, and its impact on regional economic development model is analyzed by multi-period double difference method. The study adopts MapReduce process to implement the collaborative filtering distributed screening recommendation algorithm, takes the average nighttime light brightness as the assessment index of regional economic development, selects 160 pilot prefecture-level cities as the experimental group and 150 prefecture-level cities as the control group, and analyzes the regional economic data from 2010 to 2020. The empirical results show that the information resource management system significantly improves the level of regional economic development, increasing the average nighttime light brightness in the pilot regions by about 2.29 and contributing 8.41% to economic growth. The system is effective in reducing the data error rate, and the promotion of the ratio of secondary and tertiary industries in the pilot cities in the eastern region is more obvious, with a coefficient of 0.0253 for the total population in employment. The number of end-of-year cell phone subscribers and telecom business revenue have a positive moderating effect on the high-quality development of the regional economy, with the coefficients of the triple difference term being 0.0092 and 0.0088, respectively. The study finds that information resource management has a significant impact on the economic efficiency, innovation drive, green ecology and sharing ability significantly, but the effect on coordination and optimization and cooperation and openness is not yet significant, indicating that the integration of intelligent algorithms and traditional industries still needs to be deepened.
In the current teaching of physical education and dance in general colleges and universities, there are problems such as insufficient standardized training of movements and poor integration of aesthetics, which affect the teaching effect and the cultivation of students’ interests. Kinect 3D sensing technology provides a new way for movement detection, and the application of mathematical models can optimize the evaluation of training effect. In this study, through the world coordinate system conversion and dynamic sampling light projection algorithm, we realized the construction of three-dimensional model of human movement and assisted training based on joint coordinates and joint angle data. The experiment used random groups to conduct a semester-long comparative teaching experiment on 50 college students. The results showed that the students in the experimental group improved their sport dance motivation scores from 18.98±4.36 to 24.56±4.36 (P<0.01), and their skill learning scores from 18.12±3.42 to 23.73±2.55 (P<0.01), whereas the students in the control group did not have a significant improvement in motivation and skill learning. In terms of specialized technical performance, the experimental group was significantly higher than the control group in technical quality (82.48±7.36), music processing (81.14±6.85) and choreography and performance (79.76±4.51) (P<0.01). The study shows that the Kinect-based sports dance movement detection combined with aesthetic training can effectively enhance students' learning interest and special skills, providing a new optimization path for sports dance teaching in general colleges and universities.
With the development of big data technology, the application of multi-source data analysis and intelligent modeling technology in the field of track and field training can realize the accurate assessment of training quality, intelligent monitoring and prediction of functional changes, which can help to formulate personalized training programs, improve the scientificity and effect of training, and promote the transformation of data in the field of track and field training. Based on factor analysis and time series theory, this paper constructs a framework for the application of multi-source data analysis and intelligent modeling technology in college sports track and field. The study collects S collegiate sports track and field training data through questionnaires, uses factor analysis for multisource data processing and evaluation, and uses time series theory to construct a training function monitoring and prediction model. The results of the study showed that: the standardized Cronbach’s α coefficient of the questionnaire was 0.986, which was highly consistent and reliable; the KMO value was 0.861, which was suitable for factor analysis; three principal components were extracted from the principal component analysis, and the cumulative variance explained rate reached 84.42%; the time series smoothness test of the function indicator hemoglobin (HGB) showed that its ADF test statistic was – 3.90368, which is less than the critical value of 5% significant level and suitable for modeling; the predicted value of HGB based on the ARMA(1,1) model is highly consistent with the true value, with an average predicted value of 150 g/L, and the variation of residual variations is controlled within the range of [-1,1]. The study proved that the application of multi-source data analysis and intelligent modeling technology to college sports track and field training can achieve scientific evaluation of training quality and intelligent monitoring of functional changes, provide data support for the development of personalized training programs, and promote the development of track and field training in the direction of more scientific and intelligent.
Complex design tasks require the support of efficient intelligent optimization algorithms, and the traditional beluga optimization algorithm is defective in convergence speed and optimization stability. In this study, we propose a multi-strategy hybrid improved beluga whale algorithm (MHIBWO) that integrates the MTent population initialization strategy, the step-size adjustment strategy, and the longitudinal and transversal crossover strategy to address the limitations of the traditional beluga optimization algorithms for complex design tasks. The MTent mapping enhances the diversity of the initial populations through the introduction of random numbers; the step-size adjustment strategy optimizes the weight allocation by using the sine-cosine model to improve the global optimization ability; the vertical and horizontal crossover strategy maintains the population diversity through horizontal crossover and vertical crossover operations to prevent premature convergence. Numerical experiments show that the MHIBWO algorithm has significant advantages in single-peak and multi-peak function tests, and the average optimization accuracy and standard deviation of the three test functions under 80-dimensional conditions are 0. Compared with the standard BWO and the other five swarm intelligence optimization algorithms, the MHIBWO algorithm has a faster convergence speed and higher solving accuracy. Among the 18 multitask optimization benchmark tasks, the MHIBWO algorithm has significantly better solution quality than the existing algorithms in 14 tasks, and achieves an accuracy of 2.21 × 10-² on task T2 of the CI+HS problem, which is close to the global optimum. The experimental results demonstrate that the MHIBWO algorithm has excellent global search capability, local development capability and stability in complex design tasks.
During the Anti-Japanese War, the Battle of Zhejiang-Gan under the leadership of Ding Zhipan was an important chapter in the history of the National Army’s anti-war campaign, which embodied the indomitable anti-war spirit of the Chinese nation. This study uses data mining technology, combined with multiple regression modeling, to conduct an in-depth analysis of the spirit of resistance in the Battle of Zhejiang-Gan under the leadership of Ding Zhipan and its impact on the war situation. Based on 436 valid questionnaires, the study used H. Lasswell’s 5w communication model to construct a mathematical model to assess the cognitive status of three groups: teachers, students, and the general public. The results showed that 72% of the respondents did not understand the impact of the Zhegan Campaign on the war situation under the leadership of Ding Zhipan; 81% of the students believed that learning the spirit of resistance helped to cultivate patriotism; and the scores of the communication effect of the three types of groups were 92.26 points for the grassroots employees, 91.25 points for the teachers, and 86.68 points for the society at large. The correct rate of cognition on the question of communication effect was in the order of teachers (37.44%), students (36.76%), and the general public (25.8%). The Battle of Zhegan under the leadership of Ding Zhipan developed the anti-Japanese armed forces and supported the front battlefield; it made the antiJapanese soldiers and civilians in the rear of the enemy famous, invigorated the confidence of the people to fight for the victory of the war, and consolidated the anti-Japanese united front; and it laid a solid foundation for the creation and development of anti-Japanese bases in eastern Zhejiang. The study shows that there are group differences in the current education of the spirit of resistance, and it is necessary to optimize the communication path, deepen the cognitive effect, and promote the value of the spirit of resistance in the new era.
Smart product design needs to take into account both functionality and aesthetic needs, and traditional design methods are difficult to balance these multidimensional goals. This study integrates cognitive science and machine vision technology to construct an intelligent product design optimization method. In the method, user needs and aesthetic forms are regarded as complex adaptive systems, Gray coding is used to encode product features, a multi-objective optimization model is constructed based on NSGA-II algorithm, and the optimal design scheme is selected through non-dominated sorting and congestion calculation. The experimental design invites 30 designers to participate and provides three types of external incentives, namely, far-domain incentives, near-domain incentives and constraints. The results show that the far-field incentive group generates an average of 3.61±1.73 number of solutions in the design stimulus phase, which is significantly higher than the 2.5±1.52 of the near-field incentive group and the 2.44±1.47 of the constraints group. In the evaluation of the importance of technological attributes, the TA2 proximity coefficient reaches 0.6473, which is the second highest, while the proximity coefficients of TA8 and TA14 are both 0.0001. It shows that the impact of different technical attributes on user satisfaction varies significantly. The study shows that the design optimization method integrating cognitive science and machine vision can effectively improve the usability of intelligent products, resolve technical conflicts, and realize the innovative design of products oriented to user needs.
Traditional assessment methods rely on teachers’ subjective judgment and lack objective quantitative standards. With the popularization of piano education, scientific assessment of students’ piano skill level has become particularly important. This study proposes an automatic piano skill assessment framework based on computer vision motion tracking and ID3 decision tree classification model to capture the motion characteristics of piano playing and analyze them quantitatively. The research methodology captured feature data such as keystroke and tone control, pedal technique, and musical expression through visual recognition assessment of 42 piano performers of different levels, and established an ID3 decision tree classification model to automatically assess students’ piano skill level. The results showed that: the accuracy of the visual recognition-based assessment reached 81.7%, with a Wilks’ Lambda value of 0.25; the ID3 decision tree classification model reached 95.8% accuracy on the training set and 74.5% on the test set; it was found by Pearson’s correlation coefficient analysis that keystroke and tone control (0.411) and pedal technique (0.408) were the most important features for discriminating the the most important characteristic parameters of piano skill level. Upon comparison with other methods, the assessment framework proposed in this study outperformed the existing methods in terms of accuracy, with an assessment accuracy of 84.86%. The study shows that the pattern recognition technology combining computer vision and ID3 decision tree can effectively realize the objective assessment of piano skill level and provide a scientific and quantitative evaluation system for piano teaching.
The real-time perception requirements for surface deformation and moving targets in civil engineering disaster monitoring are increasing day by day. This paper proposes an image processing method for unmanned aerial vehicle (UAV) oblique photography that integrates multi-view 3D modeling and an improved deep learning network. A high-precision three-dimensional surface model is constructed through multi-view image fusion, point cloud filtering optimization and error calibration techniques. Combined with the improved DeeplabV+ network, an image segmentation model including multiple modules such as the encoding network, spatial pyramid module and decoding network is constructed to achieve the accurate segmentation of landslide targets. The results show that the accuracy of the method proposed in this paper in the image processing of objects related to different civil engineering disasters reaches 86.57%, 88.54%, 92.32%, 88.46%, and 89.75% respectively, which is much higher than that of the comparison methods. In disaster monitoring, the application of the method in this paper can increase the identification rate of hidden danger points to 98%, advance the early warning time by an average of 8 days, and reduce economic losses by 1.6 million yuan.
Aiming at the pain points of the construction of higher vocational English gold classes in the context of the integration of production and education, this paper explores the path of teaching quality improvement empowered by artificial intelligence technology. Students’ English pronunciation is captured using speech recognition technology, and learning style preferences are parsed based on SVM algorithm. The assessment method based on the standard speech reference template is proposed, and the pronunciation is corrected with the aid of the speech recognition results. The real-time pronunciation feedback and personalized resource recommendation mechanism are embedded into the smart teaching platform to promote the construction of English Golden Class. Setting up a 12- week teaching experiment, the mean difference between the scores of the two classes in the pre-test is 0.236, t=0.302, p=0.803>0.05, and there is no significant difference. In the posttest, the scores of the students in the experimental group were concentrated in the 35-50 point value range, while the scores of the control group were concentrated in the 20-35 point value range. The experiment proves that the proposed teaching model helps to promote the continuous deepening of the industry-teaching collaborative education model.
The development of computer vision technology provides more feasibility for the inheritance and development of Guanzhong Drum and Gong Dance, a traditional folk dance. This paper analyzes the dance movements of Guanzhong Drum and Drum Dance, summarizes the artistic characteristics embedded in the dance movements, and assists in the construction of the inheritance path of the dance as the research idea. The basic features of Guanzhong Drum and Drum Dance are briefly analyzed to pave the theoretical framework of the study. Afterwards, the movement characteristics of Guanzhong Drum and Drum Dance are converted by using the universal format BVH, and the pre-processing of the dance movement data is carried out. At the same time, 3D CNNs are used as the action recognition algorithm, and the ReLU function is used as the activation function to prevent the model from overfitting, so as to propose a Guanzhong Gong and Drum Dance action recognition model based on 3D CNNs. Compared with similar model algorithms, the proposed model algorithm can recognize the Guanzhong gong dance with an accuracy of 85.00% and above, which shows a superior performance in action recognition.
This paper analyzes the design structure of the planted roof and the construction process of each construction level to find the steps that can be integrated with the self-insulated exterior wall panels. Based on the building information model, the development program of assembled composite self-insulated exterior wall panel is developed to complete the information coding of related structural components. Combine the dual code network planning (DCNP) and particle swarm algorithm to construct the construction progress-cost target optimization mathematical model and determine the optimal integrated construction scheme. The results show that the total heat transfer heat flow of the planted roof is 136.51W/m2, which is at a good level and is suitable for integrated construction with self-insulated exterior wall panels. The heat transfer coefficients of 4 combinations are 0.545, 0.376, 0.452, 0.317, which are in line with the actuality through the exterior wall panel model designed by the development program. In the wall panel width area of 0-0.25m, the degree of temperature influence of each type of components in order of magnitude is as follows: tie member>connector>steel reinforcing mesh, and it is necessary to take into account the amount of purchase of components and the time for purchasing, and to reduce the cost of construction losses.
In this paper, a system framework for financial market volatility forecasting and corporate strategic planning is constructed by taking the multi-intelligence body interaction model as the core and combining the time series analysis method. By building an Agent-based financial market volatility model, it simulates the dynamic impact of investors’ attitude propagation on stock prices. The applicability of the model is also verified with the empirical data of the Shanghai Stock Exchange Composite Index (SSE) from 2008 to 2020. The study further systematically elaborates the theory of smoothness and long memory of time series, focuses on the quantitative role of Hurst index on market trend, and optimizes the symbolization process of financial volatility data through wavelet control method and adaptive symbol space division technique. In the empirical part, this paper takes the Shanghai stock market as the research object, and develops the statistical analysis from the three dimensions of stock price index, intraday amplitude and price-earnings ratio. The volatility prediction based on 2020 high-frequency data (20-minute intervals, a total of 2904 samples) shows that the improved wavelet control method predicts the MAPE value as low as 2.98%, and the sign matching rate reaches 90.65%. The consistency between the model simulation data and the real market distribution is verified by normal distribution test (μ=0.2189, σ=1.3169). The study finally proposes an integrated strategic planning method that integrates dynamic response mechanism, data security synergy and quantitative forecasting model, which helps enterprises adapt to and lead the market changes and realize sustainable development.
Intelligent control technology is gradually becoming a key force to promote the performance improvement of electrical engineering systems. In this paper, for the nonlinear system with serious state time lag, vector Lyapunov function is constructed to relax the traditional single-function constraints and realize the flexible analysis of the stability of multiple subsystems. According to the current tracking requirement of MMMC converter, the Lyapunov controller is designed to realize the current stability control. Combined with the segmented linear approximation method, the complex nonlinear functions are decomposed into multi-domain linear combinations to reduce the complexity of controller design. The results show that the Lyapunov function can balance the convergence speed and convergence stability when the controller parameters α are taken as 0.95 and β is taken as 2. Under the influence of external event triggering mechanism, the nonlinear system equilibrium point of Lyapunov function controller remains asymptotically stable after 5s. Under the influence of faults, the trajectory of the system controlled based on the Lyapunov function controller can still return to the stability domain.
The trend of conglomerate and globalization in enterprise development not only complicates the enterprise financial network, but also makes capital flow, equity relationship and resource allocation efficiency gradually become the key factors affecting the comprehensive performance of enterprises. In this paper, from the financial and non-financial perspectives, we initially design 36 corporate financial risk early warning indicators under 9 different dimensions. Then it proposes a method to mine higher-order topological features in relational networks to improve the prediction accuracy of corporate financial risk dilemmas. The method constructs higher-order topological structure features by constructing a heterogeneous graph representation learning model, and identifies the higher-order topological structures that occur frequently and have an important impact on corporate financial risk. Subsequently, the weights and thresholds of the BP neural network are optimized by using the Tennessee whisker search method, so as to establish the financial risk early warning system based on BAS-BP neural network and complete the construction of the enterprise financial risk early warning model. At the same time, the 36 selected three-level indicators were tested for normality and non-parametric test, and finally the enterprise financial risk early warning indicators with 8 common factors as the main components and 27 three-level indicators were established. The proposed model is used to predict the financial fraud risk of enterprise P during a total of five years from 2017 to 2021, and its prediction results have a coefficient of determination greater than 0.900, and the root-mean-square error is less than 0.200, which is much better than similar modeling methods.
The continuous development and maturity of digital teaching methods is a powerful boost for the intelligent development of Civics course teaching. This paper takes the establishment of an intelligent education system for the Civics course in colleges and universities as a research goal, takes the Civics teaching of computer majors as an entry point, and puts forward the online and offline mixed teaching model course Civics system. The system effectively integrates the elements of Civics and politics with the professional courses through the form of online and offline hybrid. Combining this system with the knowledge point Civics element mining model, the teaching design method of digital Civics courses is established. At the same time, the meta-path strategy is introduced, and the pre-set meta-path is guided to wander in order to obtain the characteristic representation of the data nodes and improve the mining quality and analysis effect of the teaching data of the Civics and Politics course. By implementing the teaching strategy of digital Civics course and using the data mining method based on Metapath2vec node embedding method to analyze the students’ performance in Civics course, the construction of the intelligent system of Civics course is completed. The designed teaching method is applied in practice to assist students’ Civics performance to improve up to 1.079, demonstrating a significant positive assistive effect.
With the rapid development of artificial intelligence technology, AI painting shows revolutionary potential in the field of art creation. In this paper, we focus on the convolutional neural network-driven AI painting generation model (FSMNet), realize image classification and style migration based on VGG-16, and construct an AI painting generation algorithm adapted to art education. Experiments show that compared with StyTr2, which has the best performance in the baseline model, the SSIM and PSNR of FSMNet are improved by 18.6% and 6.82%, respectively, and the migration time is reduced by 0.017s to reach 0.51, 12.06, and 0.079s, respectively. After the teaching experiments, the experimental group scores in the three dimensions of drawing fundamentals, color perception, and creative thinking respectively reach 25.43±1.14, 27.09±1.28, and 35.18±2.15, which are all better than the control group, and the total score of the test is higher than that of the control group by 13.68, and the standard deviation is smaller, and the overall performance is more stable.
In this paper, the BottleneckCSP-small module is introduced into the automatic detection YOLOv5s model, replacing the standard convolutional unit in the backbone network, and optimizing the computational efficiency by combining the depth-separable convolution with the partial convolution (PConv) of FasterNet. In the feature extraction stage, the SENet attention mechanism is integrated to strengthen the adaptive weighting ability of channel features and enhance the sensitivity of disease region localization. The results show that the average detection accuracy of the improved model for normal, damaged and scarred fruits is 98.3%, 98.6% and 98.5%, respectively. The mean average accuracy of the lightweight improvement only was 95.6%, and the mean average accuracy of the further improvement combined with the attention mechanism reached 96.5%. The improved YOLOv5s has excellent performance in the three metrics of precision, recall and average precision, such as faster speed and more stable convergence.
Aiming at the problem of insufficient generalization ability of Neural Machine Translation (NMT) in crossdomain scenarios, this study proposes an LSTM-RNNs-attention model that integrates self-supervised multimodal features with an improved attention mechanism. Through multimodal self-supervised learning and text preprocessing optimization, the model constructs a graphic-text consistency classification and keyword annotation algorithm from image-text semantic correlation, which combined with the LSTM-CRF sequential word segmentation technique significantly improves the accuracy of the source language semantic representation. The experimental results show that the model F1 value reaches 99.13% when the character vector dimension is 125, and the performance is optimal when the Dropout ratio is 30% in the Chinese word segmentation task. For input noise robustness, the UNK-Tag strategy in the random word dropout mechanism has a BLEU value of 47.63 at a sampling probability of 0.15, which is 3.81% higher than the baseline. In the multilingual translation task, the BLEU scores of LSTM-RNNs-attention model on English-Chinese (Eng-Ch), Japanese-Chinese (Jap-Ch), and German-Chinese (Ger-Ch) are 45.82, 42.32, and 32.91, respectively, compared with the mainstream baseline model BERT-fused NMT, Multilingual NMT by an average of 2.6-18.0 points, and the convergence time is shortened to 6.58s (Eng-Ch), which is significantly better than the efficiency of Transformer’s 16.13s and RNN-NMT’s 11.79s.Manual evaluation further validates the model’s semantic coherence advantage, with the Eng-Ch task scoring 9.66 points ( out of 10). The study effectively solves the problem of semantic bias and long-distance dependency in cross-domain translation through self-supervised multimodal feature fusion, dynamic attention weight allocation and word segmentation optimization.
The article proposes a novel cross-modal adversarial learning framework for analyzing the emotional dynamics of non-English learners during classroom engagement and predicting their individualized behaviors. The framework combines multilevel feature extraction and Transformer CNN-LSTM integrated model to handle multimodal data more efficiently and capture the complex relationship between emotions and behaviors. Low-level and high-level multilevel features are then extracted from the raw multimodal data. Meanwhile, Transformer is utilized to mine long-distance dependencies between multimodal data, CNN extracts local features, and LSTM is used to model dynamic changes in time series. In addition, the framework introduces adversarial training to learn shared features across modalities. Before 50 rounds of training, the CL-Transformer model loss function, emotion recognition accuracy, and behavior prediction accuracy converge, showing the fastest training speed and training results. The algorithm in this paper has more than 90% precision, recall, and F1 scores for emotion recognition and behavior prediction, and the recognition accuracy for different emotions is up to 0.96. In the fifth stage of the case study, the classroom emotion conversion rate and arousal is up to 0.66, and the model predicts that the probability of cell phone playing behavior is the highest for learners who are in angry moods, which is 64.7%. The learners’ classroom emotional acceptance as well as behavioral integration have an impact on their classroom engagement.
Under the current development trend of global economic integration, countries around the world are interconnected and influenced by each other in international trade, and the connection of world trade forms a complex network. This paper constructs a global trade network based on global trade theory and social network analysis theory, and selects indicators such as the number of network nodes and network diameter to characterize the topological structure of the global trade network. The Transformer model is designed based on the gating mechanism unit and dynamic attention mechanism to analyze the multimodal, high-dimensional and heterogeneous global trade time series data. The empirical analysis finds that the characteristics of the global trade network structure change over time, the trade network between countries and regions becomes more and more close, and there is an impulse effect of the country’s GDP and other influencing variables on the structure of the global trade network. This paper reveals the multi-path influence effect of global trade network through empirical analysis, and improves the related research on the structural change and positive evolution of global trade network, with a view to providing useful reference and guidance for the formulation of national trade countermeasures.
In order to optimize the performance of generative adversarial networks on automatic advertisement image generation, this paper combines the variational self-encoder with generative adversarial networks, which consists of four parts: encoder network, decoder network, target-to-be-attacked network, and discriminator network to form a new adversarial sample generation method based on GANs, i.e., AdvAE-GAN model. To make the generated samples more clear and natural, the adversarial learning mechanism and similarity metric (PCE) are added to the AdvAE-GAN model. To obtain the performance of the model in diverse image coloring, multiple methods are elicited for subjective and objective qualitative evaluation and model complexity analysis, respectively. Combining the four standard datasets of AWA, CUB, SUN and FLO, zero-sample image recognition, generalized zero-sample learning experiments are carried out sequentially to derive the loss value curve of the model. The visual effects of animated advertisements generated by AdvAE-GAN model are rated using questionnaire research. For the product effect of animated advertisements generated by AdvAE-GAN model, the category diversity, design diversity, animation contour completeness, and image clarity indexes with scores above 7 account for 70.47%, 85.82%, 76.73%, and 84.02%, respectively. The animated advertisement generation model based on improved generative adversarial network is recognized by the market as well as the society and can be deepened.
The aggravation of population aging makes the demand for elderly care expanding. In this paper, we propose an integrated care model based on deep learning to build an intelligent service robot system for elder care organizations by integrating sentiment analysis and knowledge reasoning techniques. The model is driven by the dynamic needs in long-term care scenarios, and two modules are innovatively designed. In the sentiment analysis module, multimodal sensors (facial expression, audio state, textual content) and graph attention networks are integrated, and global contextual information is modeled on these features to identify long-distance emotional dependencies of the elderly. In the knowledge inference module, graph representation learning is combined with knowledge graph temporal inference to construct an inference model to speculate the care needs of the elderly. The experiment shows that after the system performs long-term service, the depression condition of the elderly is significantly improved, and the nursing care safety risk perception shows a significant difference from that before the system is used (P<0.001). The integrated care model studied in this paper provides a practical technical solution to the problem of aging care resource shortage.
The popularization of microservice architecture and cloud computing has driven RESTful API interfaces to become the core vehicle for service interaction. In this paper, we propose a test case generation algorithm PSST based on solution space tree to improve the quality of RESTful API interfaces. Combining OpenAPI specification and combinatorial testing theory, we construct a hierarchical nested API architecture by analyzing the path, parameter and response mapping relationship of the interface definition file. The PSST algorithm for generating combinatorial test cases based on the solution space tree is introduced, and the case generation process is optimized based on the greedy algorithm. The results show that the reward value of PSST algorithm is 9.524. 100% state coverage and key module coverage are realized when 22 and 50 test cases are generated. The test program runs with no more than 40% CPU and memory usage and fast IO read/write growth. The RESTful API interface after the use case generation test is able to satisfy the access requirements of 750 users at the same time.
Under the background of digital transformation, the integration and sharing of university English teaching resources face challenges such as low efficiency and insufficient matching. This paper takes data mining technology as the core and combines blockchain technology to construct an English teaching resource sharing system. A semantic feature segmentation method based on decision tree is proposed, and a support degree calculation model is designed to realize accurate recommendation and safe sharing of resources. Through experimental verification, the algorithm in this paper, compared with the α# algorithm with sub-optimal performance, improves the completeness by 6.93%, the accuracy by 20.07%, the symbolicity reaches 1.9017, and the performance is optimal in all three dimensions. After the system in this paper was put into use, students’ satisfaction with English teaching resources sharing increased from 54.56% to 81.62%. The one-way ANOVA of students in different majors has a significant difference, and the satisfaction of humanities majors is significantly higher than that of social sciences majors, P=0.017. The data-driven resource integration path can effectively solve the problem of teaching resource decentralization, and provide a technical reference for the digital transformation of education.
Chinese grammar is a formal rule describing the grammatical structure of Chinese language, and it is also an important cornerstone of Chinese language related research. In this paper, we take the Chinese relational clauses as the research object, and analyze the basic concepts of fuzzy context-independent grammar in Chinese relational clauses. Based on the characteristics of Chinese grammatical structure, the stack-maximum matching automatic word segmentation model is designed as the automatic word segmentation technique for the grammatical analysis model of Chinese relational clauses by combining the maximum matching method and the stacking technique. For the analysis of grammatical knowledge points in Chinese relational clauses, they are analyzed in modules by decomposing them into lexical and syntactic parts. At the same time, the Chart algorithm is introduced as the grammatical analysis algorithm for Chinese relational clauses, and a grammatical analysis model for Chinese relational clauses is constructed. The model is used to analyze the distribution of accusative constructions in subject relative clauses and object relative clauses, in which there is a significant tendency for accusative prepositional constructions in subject relative clauses (p0.05).
Aiming at the challenges of insufficient model generalization ability and computational inefficiency in class imbalance multiclassification problems, this paper proposes an integrated learning algorithm optimization framework based on the sample weight distribution mechanism. A Gaussian mapping-enhanced G-SMOTE oversampling method is designed to dynamically adjust the boundary distribution weights of a few class samples. Combining the fast binary classification property of TWSVM and the weight adaptation mechanism of AdaBoost, the integrated model based on the OVO strategy is constructed.The average AUC value of the G-SMOTE method on the 2 datasets with low imbalance ratios is 0.891, which is higher than that of the original dataset, the single downsampling, and the SMOTE oversampling, respectively, by 0.181, 0.187, and 0.137.The mean AUC value on the 2 datasets with high imbalance ratios is 0.891, which is higher than that of the original dataset, the single downsampling, and the SMOTE oversampling, respectively. The same performance is optimal on the 2 datasets with high imbalance ratios.The convergence speed of AdaBoost-TWSVM has an advantage over Pa_Ada, and a large advantage over SWA_Adaboost and IPAB. The test error of AdaBoost-TWSVM is reduced by an average of 9.22, 15.41, 6.08, and 9.38 percentage points compared to the other six algorithms on the four datasets, respectively. Compared with TWSVM, the acceleration ratios of AdaBoost-TWSVM algorithms are all improved to a certain extent, and the acceleration effect is most significant in the high-dimensional dataset Kddcupbuffer, with the acceleration ratio of node 3 reaching 2.37 ± 0.03. This algorithm demonstrates strong parallel computing capabilities and scalability when handling large-scale datasets, making it suitable for the classification and detection of painted images. When applied to the classification of Zhang Daqian’s early and later landscape paintings, the algorithm achieved more satisfactory results in image classification accuracy.
The systematic analysis and reconstruction of the grinding painting technique promotes the digital development of lacquer painting art. This paper analyzes the structural characteristics of the mill painting technique, combines the modeling needs of regular and irregular structures, and chooses the stacking modeling method to complete the construction of the lacquer painting model. Key elements such as the superposition of lacquer layers are constructed in layers, and the visual realism of the lacquer painting model is enhanced by lighting, material and rendering techniques. For the point cloud data generated by high-precision scanning, KD tree denoising and octree downsampling algorithms are used to optimize the data quality and ensure the accurate reproduction of model details. The results show that the parameter combination of sampling points, ρ and γ is (123,500,1.2,0.10), and the deviation rate is only 4.3% while the coverage area reaches 5.597. In this paper, the stacked modeling method takes only 0.52 days to complete the 3D modeling of lacquer paintings. The modeling fidelity in all four structural features of the abrasive painting technique exceeds 95%, and the cost reduction is greater than 40% in all of them. Eight volunteers gave a score of 80 or more for the application of the 3D lacquer painting technique.
Takeaway platform reviews are users’ direct feedback on the platform service quality, mining and analyzing the emotional connotation of review data has important significance for the improvement of takeaway platform service quality. This paper adopts Meituan catering takeaway platform as the data source for the study, and utilizes text de-emphasis and filtering phrase methods for data preprocessing of the comment corpus text. Then a bidirectional LSTM takeout review data sentiment classification network is proposed to construct a bidirectional LSTM sentiment classification model. On the basis of this model, a self-attention mechanism is added to fully mine and learn the relevant laws of the takeout platform comment data to improve the accuracy and reliability of the model’s takeout comment sentiment classification results. Incorporating the sample screening strategy of uncertainty and diversity to enrich the sample variety and improve the accuracy of the model’s classification and prediction of the sentiment of the sample corpus text in the training set, the sentiment classification model based on the self-attention mechanism is constructed. Compared with similar model algorithms, the accuracy and precision of the model in predicting and categorizing the sentiment of the review corpus text of takeaway platforms is as high as 93.10% and 94.51%, which is suitable for the needs of the sentiment processing of the review data corpus text of takeaway platforms.
Site-specific integrases have shown great potential for application in the field of gene editing, making them promising to assist in the efficient and precise insertion of DNA fragments. In this paper, site-specific recombinases are used as an entry point to mediate recombination between sites using site-specific integrases. The formation and characteristics of the tyrosine recombinase family and the serine recombinase family are analyzed separately. Subsequently, the different structures and characteristics of the recognition sites on catalytic reactions of the two types of recombinase families are highlighted. Under this theoretical framework, pNZTS01 temperature-sensitive plasmid, pNZTS-PnisA-dCas9-pmCDA1-DBtsI empty plasmid and pNZTS-CRISPR-cDBE-DBtsI empty plasmid were constructed to establish the temperature-sensitive backbone plasmid. Meanwhile, suitable targets were selected to synthesize sgRNA expression cassettes and establish base editor plasmids, thus proposing a gene editing method based on site-specific recombinase. In the in vivo therapeutic effect observation experiment of RNA nanococoon in mice, RNCOs-D induced the highest tumor growth inhibition rate (~78%), which verified that the gene editing based on site-specific recombinase could effectively inhibit tumor growth.
Aiming at the rehabilitation needs of patients with wrist dysfunction, this study proposes a digital wrist rehabilitation device based on multi-sensor fusion technology. A multimodal data acquisition and fusion framework was constructed by combining surface electromyographic signals and joint motion angle information. The improved WVPSO algorithm is used to optimize the LSSVM hyperparameters to achieve high-precision classification and recognition of finger-wrist movement intentions. Based on ADAMS simulation platform, a virtual prototype model of the device is established to verify its kinematic consistency and human-computer interaction adaptability. The clinical effect of the device was evaluated through a randomized controlled trial of 50 patients with chronic wrist dysfunction. After treatment, the pain, grip strength, function, and dorsal extension/palmar flexion mobility scores of the two groups improved compared with those before treatment, and the mean values of the experimental group were higher than those of the control group by 3.09, 2.41, 4.01, and 3.84 points, respectively. Physical, somatic, and emotional-social scores of the two groups improved compared with the pre-treatment, and the mean values of the experimental group were higher than those of the control group by 8.71, 9.01, 9.83, and 9.32 points, respectively, and the differences were statistically significant (P<0.05).
As an urban cultural communication carrier, metro space is characterized by dense flow of people and closed space, which is an excellent medium for displaying regional culture. Computer-aided technology provides a scientific method for the extraction and translation of regional cultural elements, which makes the subway space design more local characteristics. In this study, K-Means clustering algorithm and LBP (Local Binary Pattern) algorithm are used to extract the color and texture features of the Shaanxi folk art element-horse spoon, construct a color network model to analyze the color matching law, and convert the cultural elements into design elements through the regional culture translation model, which is applied to the spatial design of Xi’an Metro Line 4. The results show that the K-Means algorithm has high accuracy in color extraction; the LBP algorithm outperforms the five algorithms of GLCM, EOG, SGS, CS and SOP in four texture dataset tests, and at the same time has the shortest feature extraction time. The practical design effect survey shows that 72%~76% of the 500 passengers are satisfied with the spatial design of Xi’an Metro Line 4 that incorporates regional culture. This study provides new ideas for the scientific extraction and artistic translation of regional culture in urban public space, effectively solves the problem of “a thousand stations in one place” in metro space, and realizes the harmonious unity of regional culture and modern design.
Traditional treadmill systems are deficient in human-computer interaction interface design and health data monitoring. This study designs and develops a treadmill health monitoring system based on intelligent sensing technology, which realizes real-time monitoring and evaluation of users’ health status through multi-sensor data acquisition and fusion analysis technology. The research adopts Bluetooth 4.0 technology to establish a wireless transmission network, combines the improved time synchronization algorithm to reduce energy consumption and improve accuracy, and applies the D-S evidence theory and the improved support vector machine algorithm to carry out multi-sensor data fusion and health status analysis. The system can monitor, display and analyze several physiological parameters in real time, such as heart rate, body temperature, blood pressure, pulse and sweat ion concentration. The test results show that the error of the heart rate value measured by the system is within ±5 beats/minute compared with professional sphygmomanometer; the error of the body temperature measurement results is between -0.3℃ and 0.456℃ compared with mercury thermometer; the error of the blood pressure measurement is within ±6mmHg for systolic pressure and ±8mmHg for diastolic pressure compared with professional sphygmomanometer. The experiment proves that the system has high accuracy and reliability, and through the comprehensive monitoring and analysis of multi-physiological parameters, it can effectively improve the health monitoring level during the use of treadmill, and provide users with scientific fitness guidance and health risk warning.
Deep learning-based image segmentation of urban scenes faces the problems of edge blurring and difficulty in distinguishing similar targets in practical applications. In this paper, an improved PSPNet model CBPSPNet incorporating CBAM attention mechanism is proposed to enhance the performance of urban scene segmentation by embedding a hybrid domain attention mechanism in PSPNet. The model combines the channel attention module and spatial attention module to adaptively focus on important features and suppress useless information. The experiments are validated with two datasets, Cityscapes and CamVid, using the SGD optimizer with the base learning rate set to 0.005 and power to 0.5, and 500 epochs of training. The results show that on the Cityscapes dataset, the CBPSPNet outperforms the traditional method on all evaluation metrics, with the range of evaluation metric values reaches 0.7-1, while the traditional method is only 0.6-0.9; it also exhibits faster convergence and lower loss values on the CamVid dataset. Ablation experiments demonstrate that using both average and maximum pooling together is more effective than using them individually. It is shown that the PSPNet model incorporating the CBAM attention mechanism can effectively improve the image segmentation accuracy of urban scenes.
Chuannan Miao weaving technique is a precious cultural heritage of the Chinese nation, carrying thousands of years of cultural deposits of the Miao people, and its traditional display method has problems such as poor interactivity and weak experience. For this reason, this paper proposes a digital display system based on the fusion of virtual reality and augmented reality technology for the weaving techniques of the Miao people in Chuannan. Methodologically, the study adopts the improved G-SIFT algorithm to replace the traditional Gaussian function, uses the guided filter function for feature extraction, and constructs a 4-layer architecture system based on J2EE Web technology. Experimentally selected three types of images of embroidery, batik and brocade are verified, and the results show that: in terms of feature extraction matching efficiency, this paper’s algorithm outperforms the traditional SIFT, SURF, ORB, and AKAZE algorithms on the three types of images; in terms of the evaluation indexes, the GSIFT algorithm shows significant improvement in the information entropy, the mean squared error, and the generalized image quality index; in the system performance test, the The average response time for concurrent login of 5000 users is 2.149s, the response success rate is 100%, the CPU utilization rate is lower than 50%, and the memory utilization rate is lower than 60%. The conclusion shows that the VR/AR fusion technology based on G-SIFT algorithm can effectively extract the characteristics of weaving techniques, and the constructed digital display system has good performance, which provides a new technical path for the inheritance and protection of the weaving techniques of Sichuan Miao.
The integrated process planning and scheduling problem is a key aspect in manufacturing systems. This paper investigates the integrated process planning and scheduling integration problem based on nonlinear process planning. The study adopts particle swarm optimization algorithm, designs a new flexible scheduling method based on “cursor”, and uses the particle coding method integrated with the process to realize the simultaneous optimization of the integrated process planning route and scheduling. The experimental results of the algorithm show that, compared with the genetic algorithm, the proposed particle swarm optimization algorithm completes the convergence of the two objective functions of completion time and makespan in 59 and 55 iterations, respectively, with the convergence values of 355.32 s and 620.75. In the tests of 10 problems of different sizes, the average value of the IGD of this paper’s algorithm is always within 300, which proves that the nondominated frontier obtained by it is closer to the true frontier. The rescheduling experiments under dynamic events show that the Best makespan results sought by the particle swarm algorithm are reduced by 2.32%-10.26% and the average makespan is reduced by 4.40%-10.38% compared with that of the genetic algorithm. It is shown that the integrated process planning and scheduling integration method based on particle swarm optimization proposed in this paper has better convergence in solving the two sub-problems of process route planning and batch scheduling sequencing, and is able to optimize the production process of the plant more effectively.
The state of equipment resources in cloud manufacturing environment is highly dynamic, and traditional resource selection methods are difficult to adapt to the complex and changing manufacturing environment. Changes in the service capacity of equipment resources lead to fluctuations in the quality of task service and affect the stability of the manufacturing process. In this paper, a dynamic selection strategy for equipment resources in cloud manufacturing environment based on multi-intelligence body evolutionary algorithm is proposed to solve the problem of service quality fluctuation caused by changes in the service capability of equipment resources during the execution of manufacturing tasks. The study establishes a mathematical model for cloud manufacturing equipment resource selection, comprehensively considers total time, total cost and service quality multi-objective optimization, and achieves dynamic resource preference through intelligent body grid neighborhood competition and self-learning mechanism. The dynamic evolution model of cloud manufacturing task service quality considering the influence of resource service capability change is further constructed, and the dynamic resource selection strategy and the minimum QoS requirement checking mechanism are designed to guarantee the stable control of the system. Simulation results show that the proposed algorithm outperforms the comparison algorithm in terms of convergence, solution efficiency and solution quality, and the average running time is only 2.63 seconds, which is 50% faster than the NSGA-II algorithm; under the level 5 interference level, the shortest processing time of this paper’s strategy is 3.58 hours, and the lowest cost is $271.44, and the quality of service satisfaction is 88.17%, which is superior to the NSGA-II algorithm. The case study verifies the application value of the proposed method in the actual cloud manufacturing environment, and provides new ideas to improve the resource allocation efficiency and stability of cloud manufacturing system.
Polybrominated diphenyl ethers (PBDEs) and novel brominated flame retardants (NBFRs) are widely used as important flame retardants in electronic products such as copper laminates. In this study, a simple Bayesian model combined with the XGBoost algorithm was used to analyze the contamination characteristics of PBDEs (polybrominated diphenyl ethers) and NBFRs (novel brominated flame retardants) in the sorting residues of copper laminates. GC/MSD was applied to detect and analyze the residues from nine sampling sites. The results showed that BDE99 was detected at all monitoring sites with a detection frequency of 100%, and its concentration ranged from 0.158 to 0.498 ng/L, with the highest concentration of 1.657 ng/L at site H1. Among the eight PBDEs monomers detected, the detection rate of BDE47, BDE99, BDE100, and BDE209 was 100%, and the Σ7PBDEs the contents ranged from 9.166~88.326ng·g-1, and the median value was 29.092ng·g-1. Among the novel brominated flame retardants, the detection rate of BPA was 84.648%, and the detection rates of BPB and BPAF were both 61.548%. Correlation analysis showed that there was a significant positive correlation between BPA and BPAF (r=0.54, p=0.048<0.05). The time trend analysis showed that the ratio of Σ26PBDEs/Σ5NBFRs showed a decreasing trend from 4.233 in 2011 to 2.073 in 2021, which indicated that the new brominated flame retardants were gradually replacing the traditional PBDEs.The machine-learning based analysis method effectively identified the main controlling factors of the contamination characteristics, and provided scientific basis for the management of the contaminated sites and the control of risks.
Prison management faces the problem of monitoring the behavior of incarcerated people, and the traditional monitoring methods have defects such as poor real-time performance and low confidentiality. This study proposes a behavioral monitoring method for prison inmates based on convolutional neural network image encryption technology. This method extracts the original features of the image, uses a filter for filter diffusion processing, combines convolutional neural network and compression perception theory to generate image hybrid phase mask, and finally realizes image encryption protection by replacing the image hybrid phase mask. The experiment adopts the self-constructed prison behavior dataset of inmates, which contains a total of 710 video samples of abnormal behaviors such as fighting, attacking the police, falling down and other daily behaviors. The results show that the proposed model has an accuracy of 94.14% in the assessment of the risk of assault, which is higher than 91.10% and 91.16% for the risk of suicide and the risk of negative rehabilitation. When the number of graph convolution layers is 2, the model performance is optimal with AUC value, accuracy, recall and F1 value of 96.26%, 92.17%, 88.25% and 85.72%, respectively. The analysis by manual intervention shows that the abnormal behaviors of prison inmates with appropriate intervention are significantly alleviated, while the non-interventionists still maintain the high sensitivity score status. The results of image encryption processing show that the pixel values of the ciphertext image are close to uniform distribution in the 0-255 interval, which effectively hides the statistical features of the plaintext image and ensures the security of the monitoring data. This study provides technical support for intelligent management and risk prevention and control in prisons, and has practical value for improving the modernized management level of prisons.
Skin photoaging is a common skin problem characterized by degradation of skin structure function and collagen damage. Litchi chinensis seed, a traditional Chinese medicine, contains a variety of bioactive components and shows potential value in the treatment of various diseases. In this study, we investigated the protective mechanism of lychee seed against skin photoaging based on computational biology and network pharmacology approaches. Eight major active constituents of lychee seed, including mannitol, β-sitosterol, ghrelin, stigmasterol, stigmasterol, epicatechin, and quercetin, were obtained through the screening of the Traditional Chinese Medicine (TCM) Systematic Pharmacology Database (TCMSPD). GeneCards and OMIM databases were used to search for targets related to skin photoaging, and 71 common targets were obtained by intersecting with the active ingredients of lychee seed to construct a network of “traditional Chinese medicine-active ingredient-gene target-disease”, and the GO functional enrichment analysis showed that these targets were involved in 101 biological processes, which were mainly related to the activities of transcription factors, nuclear receptors and neurotransmitter receptors, etc. Western Blot experiments confirmed that these targets were involved in the activities of transcription factors, nuclear receptors and neurotransmitters. Western Blot assay confirmed that lychee seed could reduce skin collagen destruction by inhibiting the expression of IκBα, IKKα and NF-κBP65 proteins in the NF-kB pathway. Microarray data analysis showed that GSE181022 and GSE107361 gene chips identified 671 and 3158 differentially expressed genes, respectively, and five core targets were obtained after taking the intersection with drug targets. The results showed that lychee seed could effectively reduce skin tissue aging, mainly through regulating the NF-κB signaling pathway, which provided a scientific basis for lychee seed to combat skin photoaging.
Elderly caregivers are a key group in the development of long-term care business, and their burnout problem is becoming more and more prominent. As the two main work arrangement methods, 24/7 system and shift system have different impacts on caregiver burnout. Based on the support vector machine model, this study compares and analyzes the differences in burnout between 24/7 caregivers and shift system caregivers. A random whole cluster sampling method was used to select 185 caregivers from 18 elderly care facilities in 6 districts of a city as the study subjects, and data were collected through a general information questionnaire and the Masler Burnout Inventory (MBI-GS), and analyzed by using the SPSS22.0 software and the support vector machine model. The results showed that the round-the-clock group (24-hour workday) was more likely to experience high levels of burnout than the shift-based group (12-hour workday) (OR=2.34, 95% CI: 1.63-3.49, p<0.001); The longer the working years, the more serious the burnout, and the burnout scores of caregivers who had worked for more than 3 years (50.73±13.12) were significantly higher than those of caregivers who had worked for less than 1 year (38.96±16.51); the prediction model based on the influencing factors had the highest accuracy, correctly predicting 150 cases; the number of hours of work per day (importance score of 80.19) and work stress (importance score of 70.40 ) were the main factors affecting caregiver burnout. The study suggests that rationalization of work system design can effectively reduce caregiver burnout, and it is recommended that senior care institutions adopt scientific work system arrangements and conduct regular burnout assessment and intervention.
As a key material for mechanical manufacturing, the microstructure of spring steel is closely related to its mechanical properties. Traditional identification methods have limited accuracy and are difficult to efficiently and accurately classify and identify microstructures such as tempered flexural, which restricts the optimization of spring steel properties. In this study, a deep residual network and a convolutional neural network are combined to construct a classification and identification model of spring steel tempered flexural microstructure. By establishing the SS- 3000 dataset containing 5 classes of tissues and 600 images of each class, a migration learning strategy was used to optimize the model training process and validate the model performance on the TEST-1000 dataset. In the experimental design, images were normalized to a fixed interval and normalized, and hyperparameter settings such as batch size 32, learning rate 0.0005 and 500 training cycles were used. The results show that the average recognition accuracy of the SE-Resnext101 metallographic tissue recognition model based on migration learning for various types of microstructures of spring steel reaches 98.2%, and the recognition accuracy and recall of tempered flexural reaches 97.82% and 99.04%, respectively, which is significantly better than that of the traditional GLCM+SVM algorithm and other deep learning models. In the comparison experiments, the recognition accuracy of the model for tempered flexural is 5.69%, 7.19% and 5.43% higher than that of VGG19, AlexNet-TL and MobileNetV2-TL, respectively. The study confirms that the combination of deep residual network and convolutional neural network can effectively extract the microstructure features of spring steel, which provides reliable technical support for the study of the relationship between material properties and microstructure.
Global climate change is becoming more and more serious, and carbon emission reduction has become the focus of international attention. Based on Web of Science and China Knowledge Network database, this study adopts literature research method, comparative research method, bibliometric method and scientific knowledge mapping method to systematically analyze the literature related to carbon emission reduction pathway from 2009 to 2021. The study selected VOSviewer, CiteSpace and HistCite software to visualize and analyze the literature data, revealing the time distribution, institutional distribution, keyword co-occurrence and emergence characteristics of carbon emission reduction research. The results show that the number of Chinese carbon emission reduction research literature surged from 2009 to 2011, and reached a peak in 2021; the Department of Management and Economics of Tianjin University is the institution with the most publications, with a total of 15 publications; nine highfrequency publication authors published a total of 48 articles, which accounted for 7.97% of the total number of articles; the keyword clustering analysis formed nine different clusters, with a network density of 0.0124, a Q-value of 0.5274, S-value of 0.8613, and the clustering results are highly credible. The study shows that the research on carbon emission reduction in China mainly focuses on profile description, emission reduction methods and low carbon economy, but there is insufficient research on key contents such as emission reduction technologies, carbon neutralization methods and emission reduction strategies. Future research should pay more attention to carbon emission reduction technological innovation, carbon neutralization paths and effective strategies to promote lowcarbon economic and social transformation.
As a core technology in the field of modern automation, UAV path planning plays an important role in many fields such as military reconnaissance, disaster rescue, and environmental monitoring. Although traditional path planning algorithms such as Dijkstra’s algorithm can guarantee to find the shortest path, there are problems such as large computation volume, high memory consumption, and easy to fall into local optimization in large-scale map applications. Aiming at the problems of traditional Dijkstra algorithm in UAV path planning, this paper proposes an improved path planning algorithm based on Dijkstra-PSO fusion. The method combines the precise search characteristics of Dijkstra algorithm and the fast convergence ability of particle swarm algorithm, and avoids the algorithm from falling into local optimization by dynamically changing the inertia weight strategy, adaptively adjusting the learning factor, and improving the speed updating mechanism; it constructs a composite fitness function containing the path length and the corner of the turn, and introduces the three times B-spline interpolation for the trajectory smoothing process. Simulation results show that the improved algorithm reduces the number of search nodes by 62.5% to 91.67%, the path length by 9.39% to 16.57%, the turning angle by 90.04% to 92.95%, and the computation consumption time by 85.29% to 93.27% in maps of different sizes from 15×15 to 100×100. Compared with the A* algorithm, the path nodes are reduced by 60% to 91.3% and the search time is reduced by 81.48% to 92.35%. The algorithm in this paper significantly improves the computational efficiency while guaranteeing the path quality, and provides a new solution for real-time path planning of UAVs in complex environments.
To cope with the energy crisis and environmental challenges, wind power hydrogen generation system has become an important direction for new energy utilization with its clean and efficient features. In this paper, a scheduling control method based on improved genetic algorithm is proposed for off-grid wind power hydrogen generation system under battery and electrolyzer degradation conditions. A system model considering the degradation characteristics of batteries and electrolysers is constructed, a rule-based control strategy is adopted to coordinate the energy interaction between source-load-storage, and a nonlinear adaptive cross-variance probability mechanism is designed to achieve efficient optimization of the system configuration. The results show that the spatial evaluation index SP and generation distance GD of the improved genetic algorithm on the ZDT3 test function are 0.0045 and 0.0012, respectively, which are significantly better than the traditional genetic algorithm. An arithmetic analysis based on wind speed data in a sea area shows that the optimized system is able to achieve a levelized hydrogen cost of 22.84 Yuan/kg and a 4.53% probability of missing hydrogen supply. The sensitivity analysis found that the system LHSP remained below 18% and the LCOH ranged from 18 to 34 yuan over the parameter variation interval of [-45%,45%], indicating that the system has strong hydrogen supply capability and investment robustness. The study provides an effective method for the efficient operation and economic evaluation of off-grid wind power hydrogen production system, which is of reference value for promoting the integration of renewable energy and hydrogen energy.
Currently, higher vocational education focuses on professional skill cultivation and pays insufficient attention to students’ career development ability, which leads to a gap between the employment quality of graduates and their personal expectations. Based on the time-series data analysis method, this paper uses structural equation modeling to explore the dynamic interactive relationship between students’ career aspirations and resilience in higher vocational colleges. The study targeted students from five higher vocational colleges and universities in a city and collected data through questionnaires, 1000 questionnaires were distributed and the effective recovery rate reached 81.7%. The results of the study showed that career resilience was significantly positively correlated with career ambition fulfillment, with a path coefficient of 0.855 (p<0.01); the path coefficient of employment preparation and career ambition fulfillment was 0.916 (p<0.01), indicating that there was a stronger positive correlation between the two; and that employment preparation played a significant mediating role between career resilience and career ambition fulfillment, with a mediating effect value of 0.525 (p<0.001). Based on the findings of the study, we propose strategies to improve career adaptability at three levels: schools should improve the career planning guidance system, strengthen practical teaching and school-enterprise cooperation, and innovate teaching methods and contents; students should improve their self-knowledge, enhance their comprehensive qualities, and formulate reasonable plans; and the society needs to optimize the employment environment and create a good social atmosphere to promote the career development of higher vocational students.
The rapid development of online cab platforms has formed a great impact on the traditional cab industry, and there is both competition and cooperation between the two. In the case of overflow of orders from online taxi platforms, cab behavior has a significant impact on the construction of subsidy strategy of online taxi platforms. Based on bilateral market theory and evolutionary game theory, this study establishes a subsidy strategy model of online cab platform considering cab behavior, and explores the influence mechanism of cab behavior on subsidy strategy of online taxi platform in the case of order overflow of online taxi platform. The equilibrium points and stability of the game among the net booking platform, cab companies and passengers are analyzed by constructing replicated dynamic equations and Jacobi matrices. The results of the study show that: under the dynamic pricing strategy of online taxi platform, the price rises gradually with the increase of demand, and it can effectively balance the relationship between supply and demand; the cab price is significantly higher in the case of order overflow than in the case of no overflow, indicating that the overflow orders provide support for the cab price; the profit of online taxi is lower than that of centralized decision-making under the decentralized decision-making, and the profit shows a tendency to increase firstly and then decrease when the quality of the service improves; in the competing environment, the When the competitiveness of NetJourney cars and cabs is similar and the degree of competition is moderate, the two can realize stable coexistence. The study suggests that a reasonable platform subsidy strategy can promote the synergistic development of NetJourney cars and cabs, optimize the market structure, and improve the service experience of passengers, and the platform should dynamically adjust the subsidy according to the market supply and demand, and establish a sound competition mechanism.
Modern living environments expose humans to various types of noise for long periods of time, which may come from environmental exposures, geomagnetic environments, communication equipment, and electrical equipment. Acoustic stimulation, a non-invasive neurological disease treatment, has been shown to have specific effects on the human nervous system. The present study investigated the mechanisms by which external noise stimulation affects ion channel properties in neuronal cells. Whole-cell membrane clamp technique was used to record ion channel current changes in rat cortical neurons under external noise stimulation, and ion channel kinetic properties were analyzed in conjunction with the Hodgkin-Huxley model. The experimental results showed that the external noise environment increased the peak Na+ channel current density, which increased from -263.22±38.47 pA/pF in the control group to -372.83±11.09 pA/pF after 18 min of noise stimulation. Meanwhile, the external noise stimulation significantly inhibited the transient outward potassium current, and the percentage of inhibition increased with the prolongation of the stimulation time, reaching 62.62% at 18 min. It reached 62.62% at 18 min. Further analysis revealed that the external noise stimulation left shifted the half-activation voltage of Na+ ion channels from -32.04±0.58 mV to -56.42±0.51 mV, which promoted the activation process of Na+ channels; meanwhile, it left shifted the half-inactivation voltage of Na+ currents from -30.21±0.19 mV to -50.52±0.75 mV, which accelerated the Na+ ion channel inactivation rate. The study reveals the mechanism by which external noise stimuli change the oscillatory properties of neurons by affecting the properties of ion channels, and provides a cellular level experimental basis for understanding the effects of noise environment on the nervous system.
The traditional pattern recognition method of abnormal coal mill system has low accuracy and is difficult to meet the industrial production demand. In this paper, we propose a coal mill outlet pressure prediction and anomaly pattern recognition method based on particle swarm optimization three-dimensional residual neural network. The method firstly adopts the 3σ criterion to eliminate abnormal data and performs mean filtering preprocessing, constructs a 3D residual neural network integrating soft thresholding sub-network and distraction mechanism, and optimizes the network hyper-parameters using particle swarm algorithm. Experiments show that, compared with the traditional method, this model is significantly better than the genetic algorithm in convergence speed, shortening the training time by more than 30%; it performs excellently in prediction accuracy, with the MAE value reduced to 21.473, the MAPE reduced to 0.0333, and the RMSE reduced to 20.069, which is reduced by 10.4%, 38.4%, and 15.3% compared with the traditional ResNet, respectively. In terms of anomaly pattern recognition, the model’s recognition accuracy for current anomaly, temperature anomaly, pressure anomaly, flow anomaly, and rotational speed anomaly reaches 94.7%, 97.5%, 97.7%, 96.1%, and 98.5%, respectively, with an accuracy far exceeding that of traditional classification algorithms. The results confirm that the particle swarm optimized 3D residual neural network has significant advantages in the prediction of coal mill outlet pressure and identification of abnormal states.
Smart contracts, as an automatically executed programmatic protocol, offer new possibilities for economic transactions. This study explores the potential development path of smart contract technology supported by artificial intelligence to enhance the efficiency of economic transactions. A smart contract economic transaction model is constructed based on blockchain technology, and the feasibility and efficiency advantages of the model are verified by simulation analysis through Matlab R2020a calling Python program. The study used random function to generate economic transaction data, set the number of network nodes from 200 to 4000, and compared and analyzed the traditional economic transaction model and smart contract economic transaction model. The results show that the smart contract economic transaction model significantly reduces the transaction verification time compared with the traditional model, especially when the number of transaction subjects is huge, the efficiency advantage is significant. The path validation analysis shows that the transaction efficiency value of the economic transaction efficiency development path (D2) based on smart contract technology is consistently higher than that of the traditional path (D1), e.g., the transaction efficiency of D2 in the 20th set of data reaches 0.9939, while that of D1 is only 0.9620. The smart contract economic transaction model constructed by the research can effectively reduce the intermediary links, lower the transaction cost, improve the transparency of capital flow, optimize the experience of enterprise financial management through the two main development paths of payment process transparency and financial accounting intelligence, and provide technical support for the enhancement of the efficiency of economic transactions in the era of digital economy.
Currently, the teaching of Civics in engineering management courses faces the problems of difficulty in selecting teaching materials and lagging behind in content updating, and teachers have invested a lot of time and energy in integrating professional knowledge with Civics elements. The rapid development of natural language processing technology provides technical support for solving these problems and realizes the efficient automated generation of Civics teaching content for engineering management courses by automatically filtering and matching relevant Civics elements through algorithms. In this study, we first constructed the database and knowledge graph of Civics in engineering management courses, and designed the automatic screening algorithm for Civics elements. Then the keywords are extracted using the TF-IDF algorithm, and the BERT and GPT-2 models are used to generate the Civics text content. Finally, the generation effect is evaluated by content quality score, keyword coverage and student score improvement rate. The results show that the percentage of content with 0.4 to 1.0 quality scores reaches 74.4%, and the students’ scores are improved by 7.2% compared with the traditional textbook after teaching Civics content based on natural language processing technology. The Jaccard similarity coefficient test shows that the average value of corpus overlap rate under the same topic is 28.71%, and the overlap between different topics is 29.31%. The results of the student feedback experiment show that the difficulty coefficient of the test paper is 0.64 falling in the moderate category, and the total average score of the content difficulty is 4.175.This study proves that natural language generation technology has a good prospect of application in the automated generation of the content of the teaching of Civics and Politics in engineering management courses, and it can effectively improve the quality of teaching and students’ learning effect.
Accurate tracking of vehicle steering trajectories is crucial to the safety of traveling in tunnels. In this paper, a multi-vehicle steering trajectory tracking method based on improved residual network is proposed for tunnel scenarios, which combines the attention mechanism and model predictive control technology to realize accurate tracking. Aiming at the problem that the traditional twin network tracking algorithm is not satisfactory enough in tunnel scenarios, the ECA channel attention mechanism is introduced to improve the structure of the residual network and enhance the feature extraction capability; the feature fusion module is designed to effectively integrate different levels of feature information; and the model predictive controller based on the spatial deviation model is constructed to realize accurate tracking. The experimental results show that in the simple occlusion scenario, the algorithm in this paper improves the tracking accuracy MOTA by 3.6% to 83.42% compared with SiamCAR algorithm, and the tracking precision MOTP improves by 3% to 88.19%, and the number of identity switching is reduced to 5 times; in the complex traffic scenario, the tracking accuracy improves by 2.4% to 78.77%, and the tracking precision improves by 4.2% to 85.69%. The active steering experiment based on data recharge verifies the effectiveness of the control method, and the system is able to adjust the trajectory deviation to ensure the smooth driving of the vehicle. The method can realize accurate tracking of multi-vehicle steering trajectories in tunnel scenarios and improve driving safety.
Employee proactive behavior, as an important driver of organizational innovation and development, and its relationship with SHRM perceptions deserve in-depth exploration. This study uses a multilevel linear model to investigate the influence mechanism of strategic human resource management (SHRM) perceptions on employee proactive behavior. Using Enterprise X as the research object, the study collected data through a questionnaire survey, which included 100 employees and their immediate supervisors, and constructed a bi-level research model that included SHRM perceptions and employees’ proactive behaviors. The study used a maturity scale to measure the eight dimensions of SHRM perceptions and employee-initiated behaviors, and the relationship between the two was revealed through descriptive statistics and regression analysis. The results of the study show that all dimensions of SHRM perception have a positive impact on employee proactive behavior, among which employee engagement perception has the most significant impact on proactive behavior, with a regression coefficient of 0.313 (p<0.001); employee development opportunities and performance management perception are the next most significant, with regression coefficients of 0.282 (p<0.001); and the regression coefficients for strategic consistency, and change management perceptions are 0.231 (p<0.001). The research model explained 43.5% of the variance in employee-initiated behavior, which was 13.9 percentage points higher than the control variable model. The findings of the study confirm the significant positive relationship between SHRM perceptions and employee proactive behaviors, and that companies can promote the generation of employee proactive behaviors by enhancing employee engagement, creating development opportunities, improving performance management, and enhancing strategic alignment, thereby enhancing organizational innovation and long-term performance.
With the development of computer technology, the traditional single-threaded CPU computing has been difficult to meet the needs of large-scale data processing, and GPU has become the key technology for optimizing filtering algorithms by virtue of its powerful parallel computing capability. In this paper, we propose a new nonrecursive accelerated cascade integrator filter design method based on multi-GPU parallel computing optimization, which adopts the CUDA programming model and synchronous batch normalization technique to make full use of the GPU parallel computing architecture to improve the filter performance. The method designs a four-stage optimization process: firstly, the reference frame image is stored into the GPU global memory; secondly, the adaptive correlation function matrix is calculated and stored into the shared memory; then the filter coefficients are solved by the three-step method of LU decomposition, forward substitution and backward substitution; and finally, the reference frame interpolation calculation is completed in the GPU. The performance test shows that the algorithm in this paper is accelerated up to 119.36 times compared with the traditional CPU method and SIRP+CU method in planar filter computation; In X-ray dynamic micro-CT reconstruction, the algorithm in this paper achieves a speedup ratio of 107.58 over the conventional CPU method when processing 1500 frames of projection data; In the radar clutter simulation, the acceleration ratio reaches 183.14 when processing 1 × 107 data volume, and the average computation time is only 73.15 ms for different data volumes. Experiments demonstrate that the non-recursively accelerated cascaded integrator filter based on GPU parallel computing significantly improves the processing efficiency while guaranteeing the computational accuracy, providing an efficient solution for large-scale computation.
The digital era is driving changes in the field of education, and virtual teaching and research communities are increasingly attracting attention as a new platform for teachers’ professional development. Based on the UTAUT theoretical model, this study uses entropy value method and path analysis to explore the key influencing factors in the community framework of virtual teaching and research community and their roles in the improvement of teachers’ professional competence. Data were collected through the questionnaire method, 240 questionnaires were distributed, and 203 valid questionnaires were recovered to conduct an empirical study on the behavior of virtual teaching and research platform use and teachers’ professional competence. The results show that: performance expectations, social influence and personal knowledge management needs have a significant positive effect on teachers’ willingness to use the virtual teaching and research platform, with correlation coefficients of 0.458, 0.386 and 0.439 respectively; personal knowledge management needs, enabling factors and willingness to use have a significant positive effect on the behavior of use, and the regression equation is Y = 0.254 × personal knowledge management needs + 0.297 × Enablers + 0.308 x Willingness to use. The overall mean value of teachers’ professional competence evaluation was 4.16, with the highest score for teaching behavior (4.22) and the lowest score for teaching skills (4.09). The results of the evaluation of teachers’ professional competence based on the entropy method showed that practical teaching development ability (4.31) and spiritual education ability (4.31) were the most recognized competence dimensions by students. This study enriches the research on the influencing factors of virtual teaching and research community at the theoretical level, and provides a basis for constructing an efficient virtual teaching and research community at the practical level, which is of great significance in promoting teachers’ active participation in virtual teaching and research activities and enhancing teachers’ professional competence.
In the context of big data era, the traditional valuation methods for company mergers and acquisitions have limitations and are difficult to comprehensively consider the uncertainties in enterprise value. Based on the background of big data, this study combines data mining technology and real options theory to construct an assessment model for M&A valuation. Firstly, an empirical study is conducted on information technology service company S through financial index analysis, and data mining technology is used to analyze its four financial indexes, namely, development ability, solvency, operation ability and profitability; secondly, a real option valuation model is used to make valuation calculations. The results show that the valuation result of the real option valuation model in the M&A valuation of S Company is 5,711,100,000 yuan, which is 165.31% value-added over the book value of 2,152,600 yuan; the discrepancy rate compared with the valuation result of the income approach of 5,680,000 yuan is only 0.55%; and the discrepancy rate compared with the pricing of 5,780,000 yuan of the actual deal is 1.19%, which is lower than that of the income approach of 1.73%. The study concludes that the real option valuation model not only considers the uncertain assets not reflected in the book value of the enterprise, but also considers the option value in the M&A transaction, and its valuation results are closer to the actual transaction pricing, which can be used as an effective supplement and validation of the traditional valuation method, and provide a more scientific and reasonable theoretical basis and methodological tools for the company’s M&A decision-making under the background of big data.
As an important agricultural production area, Xinjiang Aksu region faces the problem of low energy efficiency of its agricultural small base stations. The traditional RF power amplifier has the disadvantages of high energy consumption and low spectral efficiency, which affects the construction of agricultural informationization. This study proposes an optimization method of RF power amplifier energy efficiency for agricultural small base station in Aksu area based on fuzzy logic control. The Sugeno fuzzy model is used to construct an adaptive fuzzy neural inference system, which is combined with the orthogonal least squares method to screen the polynomial coefficients, and an ant colony algorithm to find the optimal weight configuration. The experimental results show that the fuzzy logic control algorithm is outstanding in energy efficiency optimization, and its energy efficiency is 38% higher than the SIC algorithm and 88% higher than the OMP algorithm when the number of RF links is 2. The energy efficiency is 71% higher than the SIC algorithm when the maximum transmitting power is 60 dBm. The spectrum efficiency is 9% higher than the SIC algorithm and the energy efficiency is 66% higher than the SIC algorithm when the number of transmitting antennas of the base station reaches 200. At the same time, the energy efficiency is improved by 66%. In addition, after adding fuzzy logic control, the power spectrum output is closer to the input signal, the maximum difference is only 60dBW, and the BER is significantly reduced to about 0.2. The study proves that the fuzzy logic control can effectively solve the RF amplifier nonlinearity problem of agricultural small base station, and significantly improve the energy efficiency while guaranteeing the spectral efficiency, which provides an effective solution for the construction of agricultural communication infrastructure in Aksu region.
With the deepening development of market economy, enterprise performance assessment has become a key part of enterprise strategic management. This study constructs a corporate performance assessment model that combines economic value added (EVA) and balanced scorecard (BSC), and empirically analyzes it through an improved fuzzy comprehensive evaluation method. The study establishes a performance evaluation index system covering four dimensions: finance, customer, internal process, and learning and growth, based on the financial data and operations of Company T from 2018 to 2022. By applying the expert scoring method and fuzzy evaluation matrix calculation, it is found that the EVA value of Company T improves from -67,212,000 yuan in 2019 to 2018,402,000 yuan in 2021, and the operational performance realizes a significant breakthrough in 2021-2022, with the revenue growth rate increasing from 38.0485% to 96.1922%. Among the customer dimension indicators, the reasonable assessment of customer maintenance rate guides the enterprise to achieve stable market share, while among the internal process dimensions, product quality qualification rate and product shipment timeliness play a key role in the improvement of the enterprise’s operational efficiency. The study shows that the fuzzy comprehensive evaluation model based on EVA-BSC can comprehensively reflect the enterprise’s strategy implementation effect, effectively integrate financial and non-financial indicators, and provide scientific basis for the enterprise’s operation decision-making, so as to realize the steady enhancement of enterprise value and sustainable development.
Power system load forecasting is a key aspect of grid scheduling and operation, which is affected by factors such as national policies, population growth, seasonal changes, and weather changes. In this paper, a prediction model based on improved AlexNet-GRU is proposed to address the problem of short-term load prediction accuracy in distribution networks. Firstly, the basic principles and characteristics of power system load forecasting are analyzed, and the load data processing methods, including abnormal data correction and missing data completion, are studied. Then the AlexNet network in the field of image recognition is improved into a one-dimensional convolutional structure, and combined with the GRU network to construct the prediction model, fully utilizing AlexNet’s ability to extract complex features and GRU’s advantage of processing time-series data. The analyses of the algorithms show that the model reduces the average absolute percentage error MAPE by 1.082%, 1.314%, 1.939%, and 2.323%, and improves the average prediction accuracy by 1.085%, 1.236%, 1.876%, and 2.223%, respectively, when compared with the CNN-GRU, GRU, LSTM, and RNN models, during the consecutive six-month test in a province of Southwest China, 2.223%. In the validation of a regional dataset in Australia, the mean absolute error MAE is reduced by 22.77 MW and the root mean square error RMSE is reduced by 18.48 MW compared with the CNN-GRU model.The experimental results show that the proposed model can effectively improve the accuracy and stability of short-term load forecasting of the distribution network, and provide decision-making support for the safe and economic operation of the power system.
The widespread use of digital technology has brought new ethical challenges to the field of education. As future educators, the digital ethical literacy of primary and secondary pre-service teachers is crucial to the overall development of students. This study used questionnaire survey method and logistic regression model to analyze the influencing factors of digital ethical literacy of primary and secondary pre-service teachers. The study was conducted in Southwest China, and a total of 1524 questionnaires were collected, with a valid sample of 1466 and an effective rate of 96.19%. The study constructed an ordered multicategorical logistic regression model to test the influence of variables such as teachers’ personal characteristics, educational background and work environment on digital ethical literacy. The results showed that the factors influencing digital ethical literacy were ranked as follows: level of education, years of professional study, target teacher title, subject taught, number of trainings, monthly income, region taught, province taught, class structure, and number of students. Mathematics teachers had the highest digital literacy, with a mean value of 4.21; urban teachers’ digital literacy (4.12) was higher than that of counties and towns (4.01) and rural teachers (3.67); and those who had received more than 10 trainings had the highest digital literacy, at 4.35. This suggests that improving pre-service teachers’ digital ethic literacy requires strengthening professional education and training, paying attention to regional differences, increasing practical experience, and conducting targeted trainings. This study is of great significance for improving the digital ethics literacy training system for pre-service teachers and promoting educational equity.
The stylistic evolution of modern and contemporary Chinese literary works carries the profound accumulation of history and culture, and the study of its development trend can reveal the social, cultural and ideological changes behind it. This paper analyzes the trend of style evolution of modern and contemporary Chinese literary works through text mining techniques. The research methodology includes using TF-IDF keyword extraction and LDA topic model analysis to process and analyze a large amount of literary work review data. The results show that “realism”, “romanticism” and “modernism” are the most frequently occurring themes, and the styles of literary works have diversified over time. The results show that “realism”, “romanticism” and “modernism” are the most frequent themes, and the styles of literary works have diversified over time. Specifically, “Literary Genres and Styles” accounted for the highest percentage of literature in the last ten years, at 19%, while “Creative Techniques and Narrative Techniques” and “Psychological and Humanistic Exploration” accounted for 16% and 13% respectively. In addition, through the LDA model analysis, it was found that the evolution of literary styles shows a gradual development from realism to romanticism and then to modernism. The study shows that with the development of the Internet and big data technology, the forms and techniques of literary creation are constantly innovated and show a diversified trend.
Massive concrete structures are widely used in construction projects, but their quality inspection faces technical bottlenecks. This study proposes a single-side imaging technique for mass concrete structures based on 3D laser scanning technology, which achieves accurate characterization of concrete structures through 3D laser point cloud acquisition, wavelet transform denoising and implicit surface reconstruction. The study firstly adopts 3D laser scanning technology for image acquisition, and applies the seed point 4-neighborhood grid distribution method to obtain the original image estimation; secondly, empirical mode decomposition is applied to measure the information of the scanned image; then wavelet transform processing is utilized to remove the noise and improve the quality of the data; finally, hole repair and surface reconstruction are realized through resampling, eigenface extraction and implicit surface construction. The experimental results show that, compared with RIEGL VUX-1UAV, the accuracy of this method is comparable in elevation difference measurement (the mean value of elevation difference is 0.019), but the point cloud density is improved by 2.75 times on average, and the average thickness of the point cloud at the edges is only 5.32 cm. Meanwhile, the method distributes the point cloud uniformly in the different thickness intervals, and the average proportion of the point cloud reaches 0.216, which ensures that the strength of the concrete structure is later stable growth, so that the strength assurance rate reaches 98.9% at a probability degree of 2.3. This technique provides an efficient and accurate solution for the inspection of mass concrete structures and can be widely used in the field of engineering quality assessment and monitoring.
Modern Chinese literature contains rich thematic connotations. This study proposes a method for extracting and analyzing themes of modern Chinese literature texts based on vector space model. Firstly, the text is preprocessed, including data cleaning, word splitting and deactivation word removal; then the text is transformed into multi-dimensional vector representation by using vector space model and the text feature weights are calculated by TF-IDF; finally, a two-stage clustering strategy is designed, in which the number of class clusters and centers are estimated by Canopy algorithm, and then fine classification is performed by K-means algorithm. The experimental results show that when the number of topics is set to 7, the model perplexity is the lowest at 6.646, the clustering precision rate reaches 0.81, the recall rate is 0.796, and the F-measure value is 0.802, which is obviously better than other settings of the number of topics. By analyzing 31,226 data of modern Chinese literature, seven major themes are successfully extracted: criticism of nationalism, oppression of feudal rites, enlightenment and salvation, cultural conflict between urban and rural areas, dilemma of women’s awakening, writing of war sufferings, and uncertainty of intellectuals. The study shows that the vector space model combined with the optimized K-means algorithm can effectively identify the thematic features in modern Chinese literature and provide data support for literary research.
With the popularization of low-orbit satellite communication system, the impact of various types of interference signals on the quality of satellite communication has become increasingly serious. In this paper, for the automatic detection of various types of interference signals in low-orbit satellite communication system, an automatic interference signal detection method based on improved depth belief network is proposed. The study firstly establishes seven typical interference signal models, including single-tone interference, multi-tone interference, narrowband noise interference, broadband noise interference, comb spectrum interference, broadband linear sweep interference and impulse interference; and then extracts the signal characteristics from both time and frequency domains, focusing on the analysis of three characteristic parameters: 3dB bandwidth of normalized spectrum, peak-to-average ratio of the frequency domain, and moment skewness of the frequency domain; Then an improved deep belief network model introducing radial basis function activation function, combining -step contrast dispersion (CD)- and adaptive moment estimation algorithms is constructed to realize accurate classification and detection of interference signals. The experimental results show that the proposed method has good recognition effect in the range of dry noise ratio from -6dB to 13dB, and the AUC values for the seven kinds of interference signals as unknown signals are more than 0.7, among which the best detection effect is achieved for the comb spectral interference, with an AUC value of 0.806. The method has a false alarm probability of only 0.3 when the detection probability of the unknown interference is 0.8, which verifies the improvement of the depth belief network effectiveness and accuracy in the automatic detection of low-orbit satellite signal interference.
With the continuous development of weather prediction technology, the traditional single data source prediction model has been difficult to meet the demand of increasingly complex weather changes. In this paper, an intelligent weather prediction model based on the fusion of cloud radar and weather sensor data is proposed, which utilizes a combination of Kalman filter algorithm and deep learning model for weather forecasting. First, the Kalman filter algorithm is used to invert the cloud radar echo data, and the inversion accuracy is improved by optimizing the parameters, with the lowest temperature deviation reaching 3.2 K. Then, based on the multimodal fusion of weather prediction model, the temporal and spatial dependencies in the meteorological data are modeled using the Transformer encoder-decoder architecture, which further improves the prediction accuracy. The experimental results show that the model in this paper performs better in the evaluation indexes of RMSE, MSE and MAPE compared with the LSTM and RNN models, with an RMSE of 2.6483, a MAPE of 0.0229, and an R² value close to 1, which makes the prediction results the closest to the real values. The model shows significant advantages in multimodal data fusion and provides an effective solution in the field of weather prediction.
The tilting of transmission towers may seriously threaten the normal operation of power grids. In this study, an online monitoring system for transmission towers based on the Internet of Things platform is designed, which aims to ensure the safe operation of the power grid by real-time monitoring of the tilting status of the towers and the surrounding meteorological environment. The system adopts a variety of sensors and ZigBee wireless communication technology, and transmits the data to the monitoring center through the on-site monitoring base station, which is able to realize remote real-time monitoring. Aiming at the problem of low-cost inertial measurement unit (IMU) accuracy in the existing monitoring system, this paper proposes an improved adaptive hybrid filtering algorithm (Sage-Husa), which is experimentally verified to effectively improve the stability and accuracy of the system. In the static experiments, the standard deviation of the Sage-Husa algorithm in the X-axis, Y-axis and Zaxis is 0.018, 0.0073 and 0.018, respectively, which shows a better noise reduction effect. In the dynamic experiments, evaluated using the root mean square error (RMSE), the RMSE of the Sage-Husa algorithm is 0.00154°/s (gyroscope) and 0.00305 m/s² (accelerometer), which shows better performance compared to other algorithms. The system designed in this paper can effectively improve the accuracy and reliability of tilt state monitoring of transmission towers, and has a wide range of application prospects.
With the rapid development of urban construction, accurate decoding of urban scenes has become particularly important in the fields of urban infrastructure planning, intelligent transportation management, and environmental monitoring. In this study, a dynamic adaptive convolution-based RGB-D urban scene segmentation algorithm (FastDVFN) is proposed, which aims at solving the limitations of the existing full convolutional neural network (FCN) methods in terms of efficiency and real-time performance. The method combines RGB-D point cloud feature extraction with adaptive convolution mechanism, and optimizes the parameter tuning of the convolutional layer to improve the segmentation accuracy and computational efficiency. On the Cityscapes dataset, the FastDVFN network achieves an mIoU metric of 72.9%, which improves the accuracy by 5.2% compared to the traditional method. In terms of running speed, it reaches 88 frames/s, outperforming other similar lightweight semantic segmentation networks. In the experiment, the number of parameters of FastDVFN network is 0.63m, which is significantly reduced compared to other methods. The effectiveness of the dynamic adaptive convolution and enhanced channel feature normalization (ECFN) module is demonstrated through comparative experiments and analysis of ablation experiments. The results show that the algorithm has strong real-time processing capability while maintaining high accuracy and can meet the practical application requirements of urban scenes.
Wireless sensor networks for industrial control systems are widely used because of their advantages such as low cost and easy deployment, but their open characteristics expose the network communication to serious security threats. This study proposes a communication security mechanism for industrial control system wireless sensor networks based on chaotic mapping and state secret algorithm. Methodologically, firstly, the secure communication packet format specification is designed based on ZigBee application layer, and SM4 encryption and SM3 hash algorithm are implemented; secondly, the adaptive encryption method based on chaotic mapping is constructed, and the protection of sensitive data is realized by ciphertext layered addition. The results show that this scheme takes only 0.347 seconds in encrypting 6000 bytes of data, which is 0.5848 seconds and 0.2339 seconds faster than the SkipJack algorithm and RC5 algorithm, respectively; in terms of secure connectivity, this scheme enables the nodes in any communication range to establish the session key through the asymmetric key distribution mechanism, which is significantly better than the E-G scheme; in terms of storage consumption, the 650-node In terms of storage consumption, with 650 nodes, the storage space required by this scheme is much lower than that of the E-G scheme, and the advantage is more obvious with the increase of network size; in terms of anti-node capture, this scheme detects and updates the network key in time through the backup cluster head, which effectively improves the security of the whole network. Based on the experimental analysis, it can be concluded that the proposed security mechanism shows better performance in terms of encryption efficiency, space consumption and communication security, and is suitable for resource-constrained industrial control system wireless sensor network environment.
Modern Chinese novels contain rich emotional expressions. In this study, a BERT-BiGRU sentiment analysis model incorporating a sentiment lexicon is constructed for parsing the emotional color in modern Chinese novels. The novel text is preprocessed by jieba segmentation technique, the sentiment lexicon is constructed by combining Hownet and SentiWordNet, and the BERT-BiGRU network architecture is integrated to form a sentiment analysis model with bidirectional semantic comprehension capability. The experimental evaluation shows that the BERT-BiGRU model achieves 93.1%, 92.2%, and 92.6% in precision, recall, and F1-score metrics, respectively, which are 7.4%, 20.1%, and 14.3% higher than the GRU model. When applied to novel text analysis, the model successfully draws sentiment change curves, revealing the laws of sentiment flow in different novels. By calculating the Hurst parameter of 1514 modern Chinese novels, it is found that 93.2% of the excellent novels have a Hurst value greater than 0.5, 87% of which are concentrated in the range of 0.52-0.74, which indicates that the novels’ emotional dynamics generally have long-range correlation. The study confirms that the BERT-BiGRU model enhanced by the emotional lexicon can effectively capture the emotional veins in novel texts, providing a computational perspective for literary analysis, and revealing the common law of excellent novels in emotional construction, providing a quantitative reference for novel creation and evaluation.
Currently, the construction industry is facing the challenge of balancing modularity and personalization needs, and assembly buildings are promoted by various countries for their high efficiency and environmental advantages. In this study, a comprehensive optimization scheme is proposed for the problem of balancing modularity and customization of assembled buildings in an intelligent design environment. Firstly, a modular design and customization demand balance model is constructed to analyze the relationship between standardization and customization, module flexibility and adaptability, and 3D point cloud data segmentation using BIM technology. Secondly, a multi-objective optimization model of “cost-duration-carbon emission” for the assembly building construction process is constructed based on the Improved Gray Wolf Optimization (IGWO) algorithm, and the dynamic weighting method is introduced to solve the optimization problem under different construction process execution modes. Simulation results show that the optimization accuracy of IGWO algorithm on the test function f1(x) reaches 0.0015, which is more than 95% higher than that of GWO algorithm. It was verified that the optimized assembled component combination reduced the duration by 20%, carbon emission by 12.25%, and cost by 0.56% compared to the all-cast-in-place solution in the baseline scenario. It was found that the optimal range of prefabrication rate for assembled buildings should be controlled in the range of 20%-60%, which is determined according to the specific needs of the project, and should not be pursued as a high prefabrication rate. The method provides a feasible way to achieve a balance between modularity and individualization for assembly buildings in an intelligent design environment.
Fan speed regulation is crucial to the safe operation of mines, and traditional PID control is less stable under dynamic disturbances. With the development of industrial control technology, fuzzy logic and fractional-order PID are combined to form a new control strategy, which can deal with system nonlinearity and uncertainty. In this study, we first established a mathematical model of fan speed control, analyzed the characteristics of fuzzy set and affiliation function, and designed a fuzzy rule-based fractional-order PID controller to adaptively adjust the control parameters Kp, Ki, Kd, λ and μ. The control system performance was verified by Simulink and Fluent software simulation tests. The results show that compared with the traditional PID controller, the fuzzy fractional-order PID controller reduces the time for the wind turbine speed to reach the steady state by 30s, and the amount of overshooting decreases by about 15%. In the anti-interference performance test, the fuzzy fractional-order PID controller can restore the steady state faster when the system adds a 5% set value interference signal. The system stabilization time is shortened from 37.03s for the conventional PID to 6.97s for the fuzzy fractional-order PID, and the overshoot is only 0.01%. This study proves that the fuzzy fractional-order PID control strategy has good dynamic performance and adaptive ability in fan speed control, which provides a new solution for industrial control system.
Virtual character performance generation technology is widely used in film and television animation, especially the combination of motion capture and deep learning, which can effectively improve the naturalness and fluency of the performance. In this paper, a virtual character performance generation method is proposed, which adopts motion capture technology to obtain character movement data and combines deep reinforcement learning for training. The study introduces hierarchical policy learning based on the Actor-Critic framework and uses the PPO algorithm to optimize the motion control strategy. The experimental results show that the reward value of the virtual character in completing the one-legged squatting movement tends to stabilize after 6000 training rounds. In terms of muscle-driven control, the ablation experiments verified the importance of the degree of muscle activation in generating movement fluency and variety. In the one-legged squat maneuver, the maximum reward value was 32.08, while the maximum value after removing the muscle reward decreased to 16.39. Through the user research, the smoothness and naturalness of the virtual character’s movements were highly evaluated, and the system’s usability and visualization received positive feedback. The technique proposed in this paper has important application value in virtual character performance generation.
The rapid development of Artificial Intelligence (AI) technology has aroused widespread concern globally, especially its application in economic development is regarded as an important force to promote economic structural transformation and industrial upgrading. As the second largest economy in the world, China is gradually accelerating the process of deep integration of artificial intelligence and economic development. This paper systematically investigates the impact of AI on China’s economic development through the CiteSpace bibliometric analysis tool. The study used 4,562 relevant documents included in the China Knowledge Network Database (CNKI), extracted the topics using the LDA model, and combined with the co-occurrence analysis of the literature to reveal the current status and trends of research in the field of AI and China’s economic development. The results show that after 2016, the research on AI and economic development has gradually heated up, and the number of publications reached its peak in 2023, with an annual number of publications close to 931. Furthermore, the keyword analysis of the literature shows that the main research focuses on areas such as “digital economy”, “industrial upgrading” and “job market”, among which the high-frequency words of “artificial intelligence” and “economic development” are 11,687 and 8,124 times respectively. Artificial intelligence plays an important role in promoting China’s economic development, especially in industrial upgrading and technological innovation with significant impact.
With the increasing demand for electricity and the growing complexity of distribution networks, the identification and diagnosis of quality defects in power systems have become critical. Traditional fault diagnosis methods for distribution networks suffer from low accuracy and slow response time. In recent years, the application of data mining and artificial intelligence technologies has provided new ideas for power system fault diagnosis, especially in the diagnosis of quality defects in distribution networks. In order to improve the accuracy of fault diagnosis in distribution networks, this study proposes a quality defect diagnosis model for distribution networks based on hybrid clustering algorithm. The model first ensures the quality of data through data preprocessing, including data complementation, outlier processing, and data normalization; then, feature extraction is performed on the data through principal component analysis (PCA) dimensionality reduction to reduce the computational complexity. Finally, the clustering process is optimized by combining K-Means and hierarchical clustering algorithm to improve the accuracy of clustering results. The experimental results show that the accuracy of line loss anomaly identification of distribution network lines reaches 98.50% after using this model. In addition, by comparing with the traditional method, the optimized clustering algorithm has significant improvement in clustering time and error, the algorithm time is reduced by 26.5 seconds, and the average clustering error is reduced from 39.4832 to 7.8469. The model provides effective technical support for the intelligent operation and maintenance of the distribution network and has a better practical application value.
With the continuous development of power system construction and operation, the acceptance of the quality of distribution line engineering has gradually become an important link to ensure the safe and stable operation of the system. In this paper, a defect detection method for distribution line engineering quality based on improved YOLOv5s is proposed. Aiming at the problems of low detection efficiency and large error of the traditional method, the study optimizes the detection performance by introducing a lightweight YOLOv5s model and combining the BiFPN network, the CBAM attention mechanism, and the improved loss function. The experimental results show that the improved model has significant improvement in several performance metrics. The average detection accuracy (mAP) reaches 94.11% when using the model, which is only 0.56% lower than the original YOLOv5s model. In addition, the computational and parametric quantities of the model were reduced by 84.49% and 85.00%, respectively, showing excellent lightweight characteristics. The model is also optimized in terms of detection speed and is able to reach 106.27 frames per second. The conclusion shows that the improved YOLOv5s model performs well in the detection of quality defects in distribution line engineering, which can effectively improve the detection accuracy and shorten the detection time to meet the real-time detection needs of industrial sites.
In recent years, power grid enterprises have faced the contradiction between talent shortage and the demand for science and technology innovation. This study analyzes the factors influencing the development of scientific and technological innovation talents in power grid enterprises using structural equation modeling (SEM). The study constructed a model based on the framework of “education input-practice input-talent output efficiency”, and explored the influence of family education, school education, social education, theoretical innovation, practical innovation and other factors on the effectiveness of talent development. Through the statistical analysis of the data from 400 questionnaires, the results show that school education has a significant impact on the development of scientific and technological innovation talents, with a path coefficient of 0.27 (p<0.05); The indirect effect of social education on talent output efficiency is the most significant, with a path coefficient of 0.53; the direct effect of practical innovation on talent output efficiency is 0.334. The conclusion shows that grid enterprises need to strengthen the interaction between school education and social education, and increase the input of practical innovation to enhance the cultivation efficiency of scientific and technological innovation talents. At the same time, family education plays a fundamental role in it and affects the effect of school education and social education. Therefore, power grid enterprises should adopt diversified talent introduction and cultivation strategies in different fields to optimize the existing talent development system.
China’s rural infrastructure construction is an important foundation for promoting sustainable rural economic development. This study uses data envelopment analysis, total factor productivity index and spatial econometric model to evaluate the efficiency of rural infrastructure construction in China, and proposes a sustainable development strategy based on intelligent technology. The study uses the Super-SBM model, Malmquist index, Thiel index and Moran index to analyze the static characteristics, dynamic changes and spatial differences of China’s rural infrastructure construction efficiency from 2015 to 2024. The results show that: the efficiency of rural infrastructure construction shows a regional gradient distribution of East>Central>Northeast>West, with a national average efficiency value of 0.74 in 2024, and the provinces of Beijing, Shanghai, Shandong, Guangdong, Qinghai, and Liaoning realize effective DEA; the total factor productivity index is generally greater than 1 during the 12th Five-Year Plan period, and intra-regional disparities in the western region are the main cause of the overall disparity, accounting for more than The total factor productivity index in the 12th Five-Year Plan period is generally greater than 1, and intra-regional differences in the western region are the main reason for the overall differences, accounting for more than 70% of the total differences. Based on the results of the study, we should strengthen the infrastructure construction, optimize the mechanism of talent cultivation and introduction, strengthen the top-level design and policy support, promote the application of digital technology, and build a sustainable rural governance system, so as to improve the efficiency of rural infrastructure construction and sustainable development capacity.
Traditional cryptographic algorithms have limitations in terms of efficient implementation, especially the need for hardware acceleration is more urgent. In this paper, an FPGA-based hardware acceleration system for elliptic curve encryption algorithm is designed and implemented. The system adopts Xilinx Spartan-6 series development board, and optimizes the acceleration process of elliptic curve encryption algorithm by combining the parallel computing capability of FPGA. The experimental results show that the system significantly improves the encryption speed when performing encryption operations compared with the traditional software implementation. Especially when dealing with complex image data, the system is able to deal with the equalization of the image grayscale histograms, and exhibits strong anti-attack ability. Through testing, the system’s encrypted image information entropy value is close to the ideal value of 8, the NPCR value reaches 99.6814%, and the UACI value is 33.3923%, which effectively guarantees the security of the data. Based on these experimental results, the system ensures a high level of security while improving the encryption efficiency, providing an efficient solution for data protection in IoT and cloud computing.
With the increasing cyber security threats, malware attacks pose a serious challenge to the security of information systems. This study proposes a malware behavior detection and protection method based on Bayesian inference model. Accurate detection and protection against malware behavior is achieved by constructing a state space model with Markov chain process, combined with Bayes theorem. Experimental results show that the method in this paper has high accuracy in malware attack detection. In the simulation experiments, using the Markov chain algorithm for parameter estimation, the relative error of the final malware location parameter is 0.0366%. Meanwhile, in the algorithm error adaptation analysis, the parameter estimation interval gradually increases with the increase of the total error standard deviation, but through data cleaning, the error adaptation is significantly improved and the parameter estimation interval is narrowed. Experiments show that the method can effectively improve the recognition accuracy of malware attacks, especially in the case of concurrent attacks, the decision rate and detection rate are better than the traditional method. The study proves that the proposed Bayesian inference-based malware behavior detection and protection method has high accuracy and robustness, and can effectively identify and defend against malware attacks.
The rapid development of the electric vehicle industry has prompted much attention to the assessment of power battery health status. In this study, an intelligent prediction model of battery performance decline trend is proposed based on real vehicle data. Firstly, the capacity increment analysis is used to extract health features from the battery charging process, which is processed by a double filter algorithm to obtain a smooth capacity increment curve, and ten key health features are extracted. Subsequently, the correlation between the features and the battery health state is evaluated by Pearson correlation analysis, and the study shows that the correlation coefficient of most of the health features is greater than 0.85, which verifies the effectiveness of the feature extraction. Based on this, a GRA-EMD-BILSTM prediction model incorporating the attention mechanism was constructed, which utilized empirical mode decomposition to decompose the non-smooth differential pressure sequence into multiple smooth components, and screened the associated features by gray correlation analysis, and combined with a bidirectional long- and short-term memory network to achieve high-precision prediction. The experimental results show that the prediction error of this method for B5 batteries is controlled in the range of -1.87% to 1.43%, and the MAE, RMSE and MAPE indexes are reduced by 0.0081, 0.011, and 0.0122, respectively, compared with the LSTM method alone. This study provides a reliable health state monitoring technology for battery management systems, which is of great significance for extending the service life of the batteries and guaranteeing the safe operation of electric vehicles.
In recent years, technology transfer in China’s provinces and regions has shown an imbalanced situation, and technology transfer efficiency has become an important indicator for measuring regional innovation capacity. This study uses data envelopment analysis to construct a technology transfer efficiency evaluation system, measures and dynamically analyzes the technology transfer efficiency of 30 Chinese provinces and regions based on the BCC model and Malmquist index, and explores the influencing factors using RF regression and Tobit regression. The results show that: the average comprehensive efficiency of technology transfer in Chinese provinces and regions is 0.876, among which 12 provinces and regions’ comprehensive efficiency of technology transfer reaches DEA effective, accounting for 40%; 18 provinces and regions’ technical efficiency reaches DEA effective, accounting for 60%; and 12 provinces and regions’ scale efficiency reaches effective, accounting for 40%.In 2018-2024, China’s technology transfer’s Malmquist index is 0.96, showing a decreasing trend, and the decrease in the average efficiency of technology transfer is mainly constrained by the technical progress index (0.966). Regression analysis shows that new product sales revenue is the most significant factor affecting the efficiency of technology transfer. The study proposes that for provinces and regions with different efficiency levels, collaborative innovation development strategies should be adopted to optimize the industrial structure, rationally allocate R&D resources, and establish a sound technology transfer service system, so as to enhance the regional technology transfer efficiency and innovation capacity.
The large amount of multimodal data generated by social network platforms contains rich sentiment information, and effective analysis of user sentiment is of great value for public opinion monitoring, business decision-making and user experience optimization. In this paper, we propose a cross-modal sentiment analysis model based on feature fusion, which extracts text sentiment features by BERT, image sentiment features by ResNet152, and adopts the multi-head attention mechanism to realize the effective fusion of graphical and textual information, and designs a feature-level fusion strategy to make full use of inter-modal correlation and independence information. The experiments are conducted on the Twitter public dataset, and the results show that the featurelevel fusion method proposed in this paper improves the accuracy by 2.53% and 1.46% compared with the traditional feature splicing and Transformer fusion, respectively, and achieves 79.48% accuracy on the MVSA-Single dataset, which is 2.7% higher than that of the current popular DR-Transformer model by 2.7%. The simulation experiment selects the Paris Olympics event for multi-source social network user sentiment analysis, and obtains results that match the theoretical values in the three-source case of microblogging, WeChat and Sohu News, with a positive sentiment value of 8636.6 and a negative sentiment value of 2363.5, which verifies the validity of the model in the practical application scenarios. The study fully considers the mutual enhancement effect between graphic and textual modalities, solves the problem of insufficient accuracy of traditional single-modal sentiment analysis, and has important theoretical value and application prospects for social media sentiment monitoring, public opinion analysis, and personalized recommendation system.
Traditional methods for abnormal power usage detection of power users cannot effectively deal with complex power usage patterns and sudden abnormalities, resulting in low detection efficiency and poor accuracy. In this paper, a support vector machine (SVM)-based abnormal power usage detection method for grid users is proposed. First, a series of indicators for characterizing abnormal power consumption are constructed by extracting features such as user power consumption changes, power consumption differences, and line losses. Then, the improved K-medoids clustering algorithm is used to preprocess and cluster analyze the power consumption data to filter out the abnormal power consumption data. Finally, SVM was utilized for the classification and detection of abnormal electricity consumption. The experimental results show that after processing the data of 3305 electricity users, the proposed method achieves 99.6% in detection accuracy, which is significantly better than the traditional DT-SVM method and PSO-SVM method (87.6% and 92.5%, respectively). In addition, the proposed method also shows a large advantage in training time, which is only 18.21 seconds, compared with 53.62 seconds for DT-SVM and 45.26 seconds for PSO-SVM, which is a significant efficiency improvement. The experiment verifies the effectiveness and superiority of the method in abnormal power usage detection of grid users.
Power metering system is a key component of power grid operation, and its failure may lead to inaccurate metering or even grid fault expansion. In this paper, a fault detection and diagnosis method for power metering system based on adaptive filtering algorithm and neural network is proposed. Firstly, the EMD-NLMS adaptive filtering model is constructed by combining the empirical mode decomposition (EMD) and normalized least mean square (NLMS) algorithms to extract the fault feature signals; then, the particle swarm optimization (PSO) is used to improve the BP neural network to construct the fault diagnostic model and improve the fault identification accuracy. Simulation results show that the EMD-NLMS algorithm can effectively decompose the fault signal, filter out the noise interference, and extract more detailed IMF components; detection experiments for nine common fault types show that the convergence error of the improved PSO-BP neural network can reach 0.001 within 4000 iterations, which is three times faster than the convergence speed of the traditional BP network, and the accuracy of fault judgment reaches 97.5%. The established 5-10-5 structural neural network can accurately identify primary side short circuit faults with a diagnostic error of only 8.47 × 10-6 in the power metering system fault diagnostic test. The results of the study prove that the proposed method combining adaptive filtering and improved neural network has high accuracy and practicability in fault detection and diagnosis of power metering system, which provides effective technical support for the safe operation of power system.
The rapid development of Internet of Things (IoT) technology has prompted the transformation and upgrading of the logistics industry, and the intelligent warehousing and automatic distribution system has become a key link in the development of modern logistics economy. This study builds an intelligent warehousing and automatic distribution system based on the Internet of Things technology, adopts MVC design pattern and Spring, MyBatis framework to develop a warehouse management platform, and establishes a multi-objective optimization model and an improved ant colony algorithm for the logistics and distribution problems. The system realizes instant sensing and identification of goods through RFID, sensor network and other technologies, and completes the functions of goods inbound, outbound, query and statistics, etc. Meanwhile, it uses hardware such as intelligent shuttle and AGV to improve the efficiency of goods processing. For distribution path optimization, this paper improves the ACO algorithm in terms of initial pheromone, transfer rule and update strategy, and introduces chaotic perturbation mechanism to enhance the search capability. The experimental results show that the improved algorithm improves the convergence speed by 44.44% and reduces the distribution distance by 2.46% compared with the traditional ACO algorithm when there are 25 customer points; when the number of customer points is increased to 55, it reduces the distribution distance by 6.75% and 6.63% compared with the genetic algorithm and the traditional ACO algorithm, respectively. The system efficiency optimization simulation verifies the practicality of the model in the distribution of fresh agricultural products, which can minimize the total cost and reduce the carbon emissions under the conditions of meeting the customer time window and load limitations, and provides intelligent solutions based on the Internet of Things (IoT) technology for the logistics enterprises, which is of great significance for the sustainable development of the logistics economy.
Traditional teaching models often fail to adjust the learning content and progress according to the actual learning situation of each student. In order to solve this problem, this paper proposes a student learning content recommendation model based on personalized exploration strategy, which can automatically push appropriate learning resources according to students’ personalized needs. By analyzing the interaction behavior of students’ historical learning data and educational videos, a student personalized knowledge tracking model is designed and combined with LinUCB algorithm to realize the recommendation of educational videos. The experimental results show that on the POJ dataset, the model improves the accuracy by 1.05% and the AUC by 2.56% compared with the traditional model. On the LLS dataset, the MSE decreased by 4.11%. The model is able to effectively capture students’ knowledge mastery status and recommend suitable learning videos based on their personalized characteristics. In addition, the model adopts parallel matrix computation with personalized exploration strategy to improve the computational efficiency and recommendation accuracy. The experimental results validate the potential of the system in the field of education, which can provide students with more personalized and intelligent learning support.
In the era of digital economy, the optimization of resource allocation efficiency has become a key factor for high-quality economic development. Traditional resource allocation methods are difficult to meet the development needs of emerging industries, and data analysis algorithms provide new ideas for optimizing allocation. In this study, you use the data envelopment analysis method to measure the allocation efficiency of science and technology resources in China, and explore the development path of the integration of the digital economy and the real economy based on the fuzzy set qualitative comparative analysis. The study constructed an index system for measuring the efficiency of S&T resource allocation containing two primary indicators, four secondary indicators and six tertiary indicators, and used the DEA-BCC model and DEA-Malmquist model for empirical analysis. The results show that China’s S&T resource allocation efficiency as a whole shows an upward trend during 2016-2022, and the average value of the total factor productivity index is 1.074; among the eight economic zones, the Great Northwest Comprehensive Economic Zone has the highest S&T resource allocation efficiency, and the total factor productivity index reaches 1.14; among the 30 provinces, except for Yunnan, Tianjin, and Hainan, S&T resource allocation efficiency of the other 27 provinces is on an upward trend. Based on fsQCA method analysis, it is found that data factor marketization, digital human capital and financial support are necessary conditions for high level of digital-real integration development, and two high level digital-real integration development paths, digital environment-industry-driven under the domination of digital resources and two-way domination of digital manpowermarket demand, are identified. The conclusions of the study have important reference value for promoting the deep integration of China’s digital economy and real economy, optimizing the efficiency of S&T resource allocation, and providing scientific basis for the formulation of relevant policies.
In recent years, with the increasing demand for self-study space in college libraries, traditional space management methods often rely on experience and manual intervention, which lack scientificity and precision. In this paper, a method for optimizing the effectiveness of library space management based on the Improved Gray Wolf Optimization (IGWO) algorithm and Support Vector Regression (SVR) model is proposed. First, the key parameters of SVR are optimized using the gray wolf optimization algorithm to improve the prediction accuracy of the regression model. Then, it is experimentally verified that the improved Gray Wolf algorithm has superior accuracy and convergence speed compared with the traditional GWO algorithm. In the experiment, the root mean square error (RMSE) of the IGWO-SVR model is 0.0008, the mean absolute error (MAE) is 0.0057, and the coefficient of determination (R²) reaches 99.95%. In addition, the maximum absolute error (MAE) of the IGWO-SVR model in predicting the spatial effectiveness of libraries is 0.0057, which is significantly lower than the errors of the BPNN model and the traditional SVR model. The experimental results show that the improved SVR model can not only accurately predict library space management effectiveness, but also provide theoretical support and practical basis for optimizing resource allocation and enhancing management services.
In recent years, with the popularization of higher education and changes in the social and economic environment, college students’ entrepreneurial intention has become an important social phenomenon. At the same time, career planning education, as an important way to improve college students’ career quality and entrepreneurial ability, has attracted increasing attention for its influence on college students’ entrepreneurial intention. This study explores the relationship between college students’ entrepreneurial intention and career planning education, and analyzes it with multiple linear regression model. Through a questionnaire survey of 952 college students from eight colleges and universities in Guangxi, 908 valid questionnaires were recovered, and it was found that there was a significant positive correlation between college students’ entrepreneurial intention and career planning education (r=0.242, p<0.01). The results of regression analysis showed that the four dimensions of "contribution", "material life", "interpersonal relationship" and "self-development" of entrepreneurial intention had a significant predictive effect on career planning education, and the four factors explained a total of 20.1% of the factor variation (P<0.001). These results indicate that career planning education has a positive effect on enhancing the entrepreneurial intention of college students, especially in the areas of career planning knowledge, environmental awareness and career planning implementation. The study suggests that strengthening career planning education can effectively stimulate college students' entrepreneurial intention and provide strong support for their future career development.
Laser cutting technology has the advantages of high precision, high speed, good kerf quality, etc., and has a broad application prospect in the processing of railroad ties. Existing railroad tie processing equipment exists in the lack of flexibility, cutting quality fluctuations and other problems. In view of the quality control problems of railroad tie laser cutting processing, the research designed a high-power railroad tie laser cutting system based on PLC and industrial robot, and use fuzzy PID control strategy for intelligent control. The system integrates PLC technology, industrial robot technology, height-adjustment detection technology and laser cutting technology, and the influence of laser power, cutting speed, laser frequency and auxiliary gas pressure on cutting quality is studied by Box-Behnken experimental design method. The experiment was verified by LC-F1000-L fiber laser cutting machine and 3.2mm thick Q235 mild steel plate. The results show that the laser power has the most significant effect on the amount of slag hanging and roughness, and the compound correlation coefficients of the response surface fitting accuracy of the amount of slag hanging and roughness reach 0.9613 and 0.9609, respectively; after the application of the fuzzy PID controller, the response time of the Y-direction displacement is 0.4s, which is shortened by 1.86s compared with that of the traditional PID controller, while the response time of the X-direction displacement is 0.5s, which is reduced by 1.3s compared with that of the traditional PID controller. The fuzzy PID controller is better than the traditional PID controller in terms of position response characteristics and corner response characteristics. This study provides theoretical basis and practical guidance for the design of highprecision railroad tie laser cutting system, which is of great value for the improvement of railroad tie processing accuracy and production efficiency.
China’s tourism industry has gradually transformed towards quality development in its rapid development in recent years. The traditional evaluation system is often interfered by subjective factors, which cannot reflect more accurately the level of quality development and differences among regions of tourism. This study evaluates and analyzes the level of quality development of China’s tourism industry and its regional differences based on the entropy value method, Dagum’s Gini coefficient, and kernel density estimation. First, the entropy value method is used to objectively assign weights to 22 indicators in order to assess the quality development level of tourism across the country and provinces. Second, the regional and internal differences were analyzed by Dagum Gini coefficient decomposition, and it was found that the level of quality development of China’s tourism industry showed a rising trend year by year, with the national score increasing from 21.42 to 37.13 from 2013 to 2023, with an increase of 15.71 points. Finally, the kernel density estimation method reveals the spatio-temporal dynamic evolution of the distribution of the national tourism quality development level, showing that there are large development differences among provinces. The eastern region is the highland of quality development of tourism, while the gap between the central and western regions is still obvious, but the inter-regional differences are gradually narrowing with the passage of time. Through the convergence analysis, it is found that there is a significant β-convergence phenomenon in the whole country and in all regions, indicating that regions with low levels of development are gradually narrowing the gap with regions with high levels of development. The study suggests that further strengthening of the institutional environment and economic development is needed to promote balanced regional development and quality development of tourism.
Human health status data is characterized by high dimensionality, complex indicators, and interactive relationships, and the traditional single prediction model faces the problems of insufficient accuracy and robustness. In this paper, we propose an intelligent management method of human health status based on Stacking integrated learning, which constructs a feature system from five dimensions: physical health, mental health, lifestyle and behavioral health, social adaptation and environmental health, and disease prevention and health management. The study firstly screened 20 key feature variables by Lasso regression and stepwise regression, and then designed a dynamic weight estimation algorithm based on the Breiman method, combining long-term historical data and short-term neighboring data to optimize the weight configuration. The experimental results show that compared with a single model, the proposed Stacking integration model performs well in a number of metrics such as AUC, accuracy, and F1-Score, with an AUC value of 0.97287 and an accuracy of 0.93149. Through 10-fold crossvalidation for 10 consecutive tests, the model demonstrates less volatility than the individual base classifiers, which verifies that the method is highly stable in the high stability in human health status prediction. The Stacking model in integrated learning significantly improves the accuracy and generalization ability of the prediction results by effectively integrating the advantages of various learners, provides reliable technical support for the intelligent assessment and management of health conditions, and is of great practical value in promoting personalized health management and precision medicine.
Physical health is not only related to students’ personal health, but also directly affects the quality of education and the future development of the country. In this paper, a method for assessing college students’ physical fitness and health based on cluster analysis and logistic regression is proposed. First, the Relief algorithm is used to select features for students’ physical health data, and the improved K-means clustering algorithm is used to classify the data and analyze the physical characteristics of different classes. The results show that the improved K-means algorithm is significantly better than the original K-means algorithm in clustering effect, and the profile coefficient and Dunn’s index are 0.396658 and 0.043811, respectively, both of which are improved compared with the original algorithm. Then, the influencing factors of students’ physical health assessment were further analyzed based on the logistic regression model. The results showed that dynamic behavioral time, sleep duration and quality, and dietary and nutritional status had a significant effect on students’ physical health status, while static behavioral time and health knowledge did not significantly affect students’ physical health. The AUC values of the ROC curves of the model were 0.77, 0.87, and 0.83, respectively, indicating that the model has a good assessment performance. Eventually, a series of recommendations to improve the physical health of college students were proposed based on the model.
There are multiple safety risk factors in corporate oil and gas loading and unloading operations, including vessel, environment, operational safety, equipment, people and management. These factors are intersecting and interrelated, forming a complex system. In this study, the explanatory structural model and fuzzy PID control algorithm based on particle swarm optimization are used to improve the safety of enterprise oil and gas loading and unloading operations. Firstly, 25 main risk factors are screened out through questionnaire survey and expert interviews, and ISM is established to analyze the risk hierarchy structure and reveal its intrinsic relationship; then, a fuzzy PID control system based on PSO optimization is designed to realize the intelligent control of oil and gas loading and unloading robotic arm. The results show that: the ISM model divides the risk factors into five layers, in which the safety of oil transfer arm, pipeline safety and reliability of anti-static device are the key risk factors in layer 2; compared with the traditional PID controller, the fuzzy PID controller based on PSO optimization shortens the rise and convergence time during startup from 2.11s to 0.54s, which is a reduction of 74.4%; and the convergence time during stopping process is reduced from 3.95s to 1.01s, a reduction of 74.4%, eliminating the system oscillation and overshooting problems. In addition, through the fuzzy rule design and parameter optimization, the nonlinear and time-varying characteristics of the system are effectively solved, and the control accuracy and system response speed are improved. Enterprises should pay attention to the regular inspection and maintenance of loading and unloading equipments, establish a perfect emergency management system, and improve the professional quality of operators, so as to comprehensively improve the safety of oil and gas loading and unloading operations.
Low-orbit satellite networks play an important role in the global communication system, and their spectrum resources are increasingly tight. Traditional spectrum sensing methods face the problem of insufficient detection accuracy in low signal-to-noise ratio environments. In this paper, a low-orbit satellite spectrum sensing model based on cooperative multi-satellite beamforming and machine learning is proposed, which aims to improve the spectrum sensing performance and resource utilization. In the system construction, a binary hypothesis model is used to determine the signal, and the boda angle is optimized by distributed satellite cluster array to mitigate the performance degradation caused by the angle mismatch. Aiming at the deficiencies of energy detection, the study designs a clustering algorithm based on K-mean and Gaussian mixture model to classify the sensed energy signals into two categories of spectrum idle and occupied, so as to realize spectrum sensing under the condition of no a priori information. Simulation results show that when the number of cooperative sub-users is increased from 4 to 6, the classification of feature points is clearer and the sensing performance is significantly improved; in the case of an offset angle of 27 degrees, compared with the -19.87dB attenuation of the traditional LCMV algorithm, the collaborative beamforming method proposed in this paper is able to form a wave peak at the offset angle to ensure the quality of the signal processing; in the case of a normalized load of 1 and a packet copy of 3, the Under the normalized load of 1 and packet copy of 3, the maximum normalized throughput of this model using three satellites collaboration reaches 1.05bits/symbol, which is significantly better than 0.91bits/symbol in ACA scheme and 0.71bits/symbol in CRDSA scheme.The study proves that the proposed spectrum-aware model can effectively improve the efficiency of spectrum utilization and system throughput in the LOSNET.
The operating mileage of high-speed railroad is growing rapidly, and the detection of electric trackside equipment still mainly relies on manual visual inspection, which has the problems of shortage of personnel, low efficiency, low accuracy, and great influence by the environment. This study proposes a high-speed railroad trackside equipment identification and automatic detection method based on multi-scale convolutional neural network, which aims to solve the problems of low efficiency and poor accuracy of traditional manual inspection. The study adopts a modular-designed high-speed industrial camera for data acquisition, and constructs a dataset containing a total of 3274 pictures of five types of equipment, namely, choke transformer voltage box, cable diverter box, cable terminal box, transformer box and signaling machine. Based on the Faster-RCNN framework, ResNet101 is selected as the backbone network, and the trackside equipment detection model is designed by feature pyramid network, Rol pooling and improved loss function. The experimental results show that the model achieves an average accuracy of 97.65% in the detection of five types of trackside equipment, and the processing speed is 21.42 frames/second. Compared with other detection algorithms, this model improves the recognition accuracy, and the introduction of the feature pyramid network improves the average accuracy of the model by 4.17%. In addition, the detection accuracy is significantly improved by increasing the candidate region size to {128,256,512}. The proposed multi-scale convolutional neural network method provides an effective solution for the automated detection of trackside equipment in high-speed railroads, and provides technical support to ensure the safety of railroad operation.
Under the guidance of the concept of sustainable development, green innovation becomes the key to corporate transformation. Based on the data of Chinese Shanghai and Shenzhen A-share companies from 2012 to 2024, this study explores the impact of top management team interlocking network on corporate green innovation and the moderating role of organizational redundancy and government subsidies through multiple linear regression models. The study adopts word frequency analysis to measure the environmental attention of the top management team interlocking network, and the number of green patent applications to measure the level of green innovation. The results show that the executive team interlocking network is significantly positively correlated with corporate green innovation, indicating that the higher the executive team’s attention to environmental issues, the stronger the firm’s green innovation ability. Further analysis reveals that organizational redundancy plays a positive moderating role in this relationship, and when firms have higher organizational redundancy, the interlocking network of the executive team promotes green innovation more strongly. Similarly, government subsidies significantly enhance the positive relationship. The conclusions remain consistent through endogeneity tests of exogenous shock event and instrumental variable methods, as well as multiple robustness tests. The study reveals the importance of executive team interlocking networks in promoting corporate green innovation and confirms the moderating role of internal and external resource allocation in this process, providing new ideas for corporate green innovation strategies.
Quality assessment of ideological and political education in colleges and universities is an important link to ensure the effectiveness of education. This study constructs the quality assessment model of ideological and political education in colleges and universities based on the improved K-Means clustering algorithm, adopts hierarchical analysis to determine the weights of evaluation indexes, and designs the evaluation system that contains 6 first-level indexes and 23 second-level indexes. The initial clustering center selection method is optimized by density parameters, and weighted Euclidean distance calculation is introduced to reduce the influence of anomalies and improve the clustering effect. The empirical study collects 500 evaluation data of ideological and political education in a university and divides them into three grades of “good”, “medium” and “poor”, accounting for 50.6%, 37.6% and 11.8% respectively. The results show that the first-level index of Civic and Political Education has the highest score (18.34 points, 91.68%), and the score of team building is relatively low (10.57 points, 52.83%), and the overall evaluation is at a good level. Meanwhile, the distribution of students’ performance was highly consistent with the distribution of clustered grades, which verified the validity of the assessment model. The conclusion of the study shows that the improved K-Means clustering algorithm has strong applicability in the assessment of the quality of ideological and political education in colleges and universities, and the results of the assessment can provide data support and improvement direction for ideological and political education in colleges and universities, and promote the accurate improvement of the quality of ideological and political education.
The development of education informatization has given rise to a large amount of learning behavior data, which provides new ideas for education management and teaching quality improvement. This paper constructs a learning behavior computational analysis model based on the XGBoost algorithm and explores the strategies for improving the quality of college English teaching. Starting from students’ English learning behavior data, the study extracts six features: speaking practice, English writing, English classroom homework, consulting English dictionary, memorizing English words, and English listening practice, and establishes a computational analysis model through data preprocessing and feature engineering. The results show that the XGBoost algorithm performs well in the computational analysis of learning behaviors, with an accuracy of 0.9592, a recall of 0.9644, and an F1 value of 0.9618, which is significantly higher than that of traditional machine learning methods. Teaching experiment validation shows that the teaching strategy formulated based on the results of computational analysis can effectively improve the quality of teaching, and the average value of students’ English performance in the experimental group improves from 62.33 points in the pre-test to 88.08 points in the post-test, which is significantly higher than that of the control group, which is 63.81 points. The post-test questionnaire showed that the strategy use level of students in the experimental group increased from “low-moderate” to “high” before the intervention. The study proposes teaching strategies such as constructing an ecological classroom, implementing behavioral preventive measures, and creating an English teaching environment, which provide theoretical basis and practical guidance for improving the quality of college English teaching.
The scale of modern civil engineering projects has been expanding, and traditional management methods have been difficult to meet the dual requirements of efficiency and safety. This study explores the application of automation technology in civil engineering project management and constructs an unsafe behavior identification model based on deep learning. Through the integration of on-site monitoring system and schedule control technology, it realizes accurate quality management and safety risk warning of engineering projects. The study designs an unsafe behavior recognition model based on CNN-LSTM, which combines the Inception-v3 framework to extract spatial features, and captures temporal dynamic features through a two-layer LSTM network to realize the intelligent recognition of workers’ unsafe behaviors. The experiments use UCF-101 public dataset and self-constructed construction site dataset for model training and validation, and the results show that the model has a recognition accuracy of 94.52% on the UCF-101 dataset, with a computational complexity of 8.28G, and a parameter count of only 6.16M, which is a 5%-11% increase in the average accuracy value compared with that of the traditional methods. In actual engineering applications, the system collected more than 1,200 pieces of information on personnel’s “three violations” in one year, effectively reducing the incidence of unsafe behaviors on site. The study proves that automation technology combined with deep learning model can effectively improve the safety management efficiency of civil engineering projects and provide technical support for intelligent supervision of engineering.
Building Information Modeling (BIM) technology has become an important development trend in the construction industry, but the survey shows that the application of BIM technology in most construction-type enterprises is still in the pilot stage. As a compulsory course for construction majors, the lack of practical experience of students restricts the teaching effect. Introducing BIM technology into the teaching of plain drawing is expected to make up for the traditional teaching deficiencies through three-dimensional modeling technology, improve the learning effect, and cultivate talents who are more in line with the industry needs. This study adopts the questionnaire survey method and experimental research method to investigate the application effect of computer modeling technology in the teaching of level drafting. The questionnaire survey shows that the average score of BIM technology application in the current construction type building enterprises is 74.24, 59.2% of the enterprises are in the pilot application stage, and only 7.9% of the enterprises are in the full-scale popularization and application. Multi-dimensional scale analysis shows that BIM talent training is one of the key factors affecting technology application. Based on this, the study designed a teaching program for plain drawing literacy based on BIM technology, including improving the practical training courses, developing information resources, carrying out skill competitions, constructing an evaluation system and improving the teachers’ strength. The results of the teaching experiment showed that the posttest mean values of learning attitude, problem solving ability and skill mastery of the students in the experimental class were 3.90, 3.90 and 3.93, respectively, which were all significantly higher than those of the pre-test (P<0.01). The experimental class scored 4.25 points higher on the posttest than the control class, and the independent samples t-test showed a significant difference (P=0.018<0.05). The study proves that BIM technology can effectively enhance students' learning interest, problem solving ability, skill mastery and learning achievement in the teaching of plain drawing, which is of great value to the teaching practice of architectural design.
Highway networks are expanding and traffic congestion problems are gradually emerging. Accurate prediction of highway traffic speed is of great significance to traffic management and scheduling, and it is a key means to alleviate congestion and improve operational efficiency. In this study, a short-term traffic speed prediction system for highways is constructed based on the multilayer perceptual machine model and historical flow data. By analyzing the toll data of Chongqing Yuxiang Expressway in 2018 and the traffic speed data from 2023 to 2024, the spatial and temporal distribution characteristics and regular fluctuation patterns of traffic flow are revealed. The study adopts the multilayer perceptron model to establish the mapping relationship between the traffic flows of relevant road sections, introduces the BP algorithm for model training, and evaluates the prediction effect by the average relative error and the mean coefficient of parity. The experimental results show that the R² value of the constructed multilayer perceptron model reaches 0.837, which is 0.158 higher than that of the traditional RNN model and 0.089 higher than that of the GRU model, and the prediction accuracies are improved by 0.012 and 0.034 compared with those of the RNN and the GRU, respectively, which effectively captures the cyclic change characteristics of the traffic speed, and it is of great value to be applied in the support of decision-making of traffic management. The study confirms that the spatial and temporal features embedded in the historical flow data are of great value for short-term traffic speed prediction, and the short-term traffic speed prediction method based on multilayer perceptron can provide a scientific basis for highway traffic management.
As a core component of urban intelligent transportation infrastructure, the performance of transportation electromechanical system is directly related to the efficiency and safety of transportation operation. In this paper, an improved Canopy-K-means clustering algorithm is proposed to categorize traffic E&M systems, and a performance evaluation method is constructed based on the random forest model. The improved clustering algorithm adopts the “median and maximum distance product method” to determine the initial clustering center, and reduces redundant operations by optimizing the distance calculation. At the same time, a random forest evaluation model is established based on the driving performance index system to scientifically evaluate the performance of the electromechanical system. The experimental results show that the improved Canopy-K-means algorithm achieves an average accuracy of 83.48% on six UCI datasets, which is 5.85% higher than the traditional K-means algorithm; the running time is 169.53ms, which is 35.84% shorter than the traditional algorithm. The random forest model performs well in the evaluation, with an AUC value of 0.951 for the ROC curve and a KS value of 0.8044, which is significantly better than the traditional methods such as logistic regression. The SHAP analysis reveals that the features contributing the most to the evaluation are the absolute maximum of longitudinal acceleration, the mean value of longitudinal velocity, and the standard deviation of the angle of the heading angle from the centerline of the lane. This study provides an effective method for accurate classification and scientific assessment of transportation electromechanical systems.
Intelligent technology provides opportunities for educational innovation, and its introduction into tourism English teaching and the construction of a flipped classroom model can help improve students’ professional competence and cross-cultural communication ability, and cultivate composite talents in line with the industry’s needs. Based on the concept of Content-Based Instruction (CBI), this study adopts the Learning Channel Smart Teaching Platform to build a flipped classroom teaching model, which is implemented through three stages of teaching: self-study before class, guided study during class and study after class, and conducts a semester-long comparative experiment in the School of Tourism, University C. The experimental results show that the mean score of students’ tourism English in the experimental class reaches 85.76 points, which is 11.17 points higher than that of the control class, and the difference is significant at the 1% level. The passing rate of the students in the experimental class reaches 100% and the excellence rate is 27.08%, much higher than the 84.78% and 4.35% of the control class. The questionnaire survey shows that 78.02% of the students think that the flipped classroom teaching enhances the learning motivation, 77.56% of the students think that it improves the understanding of the course content, and 82.76% of the students are satisfied with the way of course assessment and evaluation. The flipped classroom teaching mode based on the Learning Express platform not only enhances students’ learning interest and performance in tourism English, but also strengthens teaching interactivity and optimizes the learning experience. In the experimental class, 74.99% of the students were willing to actively interact with the teacher in the classroom, which was significantly higher than the traditional teaching mode. The study shows that the flipped classroom teaching with intelligent technology support can effectively improve the quality of tourism English education, and provides new ideas and practical references for the reform of tourism English teaching in colleges and universities.
Global environmental pollution and climate warming are becoming more and more serious, and ports, as important hubs of transportation and key nodes of logistics system, have high carbon emissions. In this paper, based on the carbon peak carbon neutral goal, a green port intelligent platform is constructed, a green and lowcarbon oriented berth-shore-bridge allocation optimization model is designed, and a nested-loop solving algorithm is proposed. In terms of methodology, firstly, a green port intelligence platform with cloud architecture containing facility layer, data layer, service layer and application layer is constructed; then a berth-shore and bridge allocation coupling model is established with ship operation time as the coupling variable, and ship fuel consumption and carbon emission are embedded in the optimization objective; finally, a nested loop solving algorithm combining greedy algorithm and distributed hybrid genetic algorithm is designed. The simulation results show that the proposed nested loop algorithm has better convergence performance than NSGA-II and MNSGA-II, and the average running time is 22.1% lower than that of NSGA-II when solving the 24-ship scale problem; The multi-objective optimization model achieves a reduction of 31 kiloliters of carbon emissions by sacrificing 2.576 minutes of operation time; the 5G technology-enabled intelligent platform improves traffic density by 125 times, connection density by 20 times, and energy efficiency by 120 times compared with the traditional 4G platform. The study shows that the intelligent construction of green ports can effectively reduce carbon emissions, optimize resource allocation, improve port operation efficiency, and provide technical support and solutions for ports to achieve carbon peak carbon neutrality.
In the era of digitization, the communication mode of city brand image undergoes profound changes. This paper explores the innovation and development of Changsha’s city brand image communication mode driven by digital technology by using case study, content analysis and questionnaire survey methods. The study establishes a differentiation strategy for Changsha’s city brand image through SWOT analysis, and builds a “digital Changsha” communication model with the help of experiential marketing and integrated communication. The study shows that the image of Changsha’s urban environment accounts for 44.67% of social media communication, of which 35.67% is related to tourist attractions, and 30% is related to the image of the city’s culture, which reflects Changsha’s advantageous communication content on digital platforms. Analysis of social media data shows that tweets with more than 1,000 likes for Changsha’s city image-related content accounted for 85.4% of the total, showing good communication effects. Satisfaction survey results further indicate that citizens are most satisfied with the digitallydriven Changsha city brand image communication in terms of memorization effect, with a score of 4.6 (out of 5). Digital technology provides Changsha city brand image communication with a new mode of diversified content, innovative form and three-dimensional channels, reflecting the synergistic effect of differentiation strategy, experiential marketing and integrated communication, which can be a reference for digital communication of brand image in other cities.
Currently, the impact of agricultural carbon emissions on the environment is becoming more and more significant, and low-carbon agricultural transformation has become a key topic in the construction of ecological civilization. This study applies entropy weight method and gray comprehensive evaluation method to construct an assessment model, and analyzes the impact of the dual constraints of government regulation and agricultural insurance on low-carbon agricultural transformation based on the panel data of 20 counties in a city from 2015 to 2024. The results show that the gray correlation between economic level, arable land size, government regulation and agricultural carbon emission is 0.943, 0.906, 0.873 respectively, with high correlation. The two-way fixed effect model empirically shows that the impact coefficients of agricultural insurance and government regulation on agricultural carbon efficiency are 15.3% and 18.8%, respectively, and are significant at the 0.001 confidence level; under the double constraint, the impact coefficients are elevated to 29.1%.During the period of 2015-2024, the city’s agricultural carbon emission intensity decreases from 79.36 tons/million yuan to 36.32 tons/million yuan, which is a significant decrease. The study shows that the dual constraint mechanism of government regulation and agricultural insurance can effectively promote the low-carbon transformation of agriculture, in which agricultural insurance reduces carbon emissions through the expansion of the scale of operation of agricultural land, the restructuring of agricultural industry, and the improvement of agricultural business income; and government regulation prompts agribusinesses to strengthen their environmental responsibility through regulatory constraints and policy guidance.
In recent years, with the rapid development of artificial intelligence technology, combining it with western economics course civics provides new possibilities for improving students’ comprehensive quality. In this study, we realized learner profiling and personalized teaching resources recommendation by designing a smart teaching platform, combining convolutional neural network and deep learning algorithms. The experimental results show that the experimental class utilizing the smart teaching platform performs significantly better than the control class in the final exam, especially in the freshman and junior grades, where the difference reaches a significant level (p-value of 0.018 and 0.042, respectively). By comparing the midterm and final grades, it was found that the students in the experimental class not only improved their academic performance, but also gained enhancement in their knowledge of ideological and political education. The application of this platform effectively promotes the organic integration of western economics courses and ideological and political education, and provides a new solution for improving the quality of talent cultivation in applied colleges and universities.
Traditional brand design methods are difficult to accurately grasp audience needs, and data mining technology provides a new way to solve this problem. This paper constructs a brand design demand model for financial central enterprises based on data mining methods. The study adopts web crawler to obtain brand review text, applies word2vec to realize word vectorization; uses TF-IDF algorithm to extract brand overall imagery; analyzes brand local imagery based on syntactic relationship; realizes perceptual imagery parameterization through word vector technology; establishes brand demand element model, analyzes the correlation between brand features, emotional features, contextual features and behavioral features. The study found that “national credit” has the highest word frequency (14520) and TF-IDF value of 0.02687 among the theme words processed by data mining; the social factor has the highest weight (0.2278) in the brand design evaluation system constructed; and the W brand of a financial central enterprise designed by applying the model obtained a score of 4.39, with the highest score (4.44) for the spiritual factor. The study establishes a brand design model driven by “visual” + “semantic” dual modes, which improves the relevance and accuracy of the brand design of financial centralized enterprises, and provides a scientific method and practical path for the brand design of financial centralized enterprises.
With the rapid development of digital economy, blockchain technology, with its characteristics of decentralization, information tampering, distributed bookkeeping and storage, provides new ideas to solve the trust dilemma in supply chain collaborative sharing. Based on the characteristics of blockchain technology and evolutionary game theory, this study constructs a strategy optimization model for the implementation of blockchain technology under the shared supply chain, analyzes the sensitivity of the technical impact parameters through numerical simulation, and proposes optimization paths at the government and enterprise levels. The study adopts the replication dynamic equation and the evolutionary stability strategy as the theoretical basis, and establishes a supply chain sharing model to analyze the impact mechanism of collaborative information sharing on production cost and profit. The results show that: with the increase of the ability coefficient of supplier’s blockchain technology effort level, the optimal incentive coefficient and revenue of the manufacturer to the supplier, and the effort level of supplier information sharing are on an upward trend; with the increase of the supplier’s risk aversion coefficient, the optimal incentive coefficient of the manufacturer to the supplier decreases from 0.765 to 0.625, and the optimal effort level of the supplier’s information sharing is on a downward trend; and with the subsidy constrained case, the manufacturer benefits decrease as supplier retention utility rises. The optimization path validation analysis shows that in the enterprise satisfaction survey of five dimensions (reliability, responsiveness, agility, security, and convenience), 51-60 enterprises are satisfied and 14-31 enterprises are more satisfied, which confirms the practical application value of the optimization path. The study provides theoretical basis and practical guidance for the optimization of implementation strategy of blockchain technology in shared supply chain.
The frequency regulation accuracy of electric bus directly affects power system stability and security. In this study, the physical model of electric busbar is established, and the PSO-ANFIS control model is constructed by combining adaptive neuro-fuzzy inference system (ANFIS) and improved particle swarm optimization algorithm (PSO). The model adopts the Sugeno fuzzy system as the basic framework, extracts the complex mapping relations in the training samples using subtractive clustering method, and optimizes the ANFIS parameters by the improved PSO algorithm to improve the model generalization and accuracy. Experimental validation shows that the method can realize the precise adjustment of output frequency accuracy in the order of 0.8E-12 when the frequency control word variation is 192315 times the minimum step value. Comparative analysis of multi-region simulation shows that compared with the traditional PI control and centralized model predictive control, the PSO-ANFIS model improves the frequency deviation regulation level in region 1 by 56.85% and 26.54%, and improves the regional control deviation (ACE) regulation by 50.56% and 40.54%, respectively. In addition, when coordinating fixed-frequency and variable-frequency electric buses to participate in regulation together, the maximum frequency deviation of the system is reduced to -0.1236 Hz, and the power deviation of the contact line is reduced to 0.0267 p.u., which is significantly better than that of a single type of electric bus participating in regulation. The study shows that the proposed adaptive fuzzy control algorithm can effectively improve the regulation accuracy of the electric bus frequency, accelerate the frequency recovery speed, reduce the overshooting amount of the FM, and better coordinate the contact line power fluctuation of the multi-area power system.
New energy vehicle industry is developing rapidly, and supply chain pricing strategy and after-sales service quality become the core competitiveness of enterprises. This paper constructs a new energy vehicle supply chain pricing and after-sales service model, and explores the supply chain pricing and profit distribution problems under different sales modes through multi-objective chaotic optimization algorithm. The study takes the manufacturer-led “1:n” type new energy vehicle supply chain as the object, analyzes the impact of three packages after-sales service on pricing and profit, and compares the effects of centralized decision-making and decentralized decision-making modes. The results show that the pricing range of the models in the centralized decision-making mode is 229,500-250,000 yuan, which is significantly lower than that of 254,600-280,000 yuan in the decentralized decision-making mode; the multi-objective chaotic optimization algorithm makes the total profit of the new energy vehicles reach 6,952,950,000 yuan, which is 432,820,000 yuan higher than that of the traditional chaotic optimization algorithm; and under the stable state of the market, the profit of the most profitable models stays stable at around 41,000,000 yuan. The study concludes that the profit distribution mechanism based on Shapley’s value method can achieve a multi-win situation in the supply chain; the intelligent algorithm optimization can effectively coordinate the relationship between manufacturers and dealers and improve the overall efficiency of the supply chain; new energy vehicle enterprises should implement the optimization of the supply chain decision-making from the three aspects of the upstream product technology, the middle reaches of the production and logistics, and the downstream marketing and branding.
In the context of enterprise digital transformation, the application of artificial intelligence (AI) technology has become a key strategy to enhance the competitiveness of enterprises. However, the effect of technology implementation largely depends on the degree of acceptance and adoption by employees. Based on the TOE framework, this study constructs a structural equation model to investigate the key factors affecting employees’ adoption of AI technology and the moderating role of organizational training. By distributing questionnaires to employees of smart home decoration and other enterprises, 245 valid samples were collected, and the data were analyzed using SPSS and structural equation modeling. The results show that relative advantage (path coefficient 0.215), organizational top management support (path coefficient 0.335), organizational resource readiness (path coefficient 0.647), and government policy support (path coefficient 0.461) have a significant positive impact on employees’ adoption of AI technology, while technological complexity (path coefficient -0.287) exerts a significant negative impact. The independent variables in the model collectively explained 75.1% of the variance in AI technology adoption, indicating strong explanatory power of the model. Organizational training showed a significant moderating effect in the relationship between environmental factors and adoption (β=-0.113, p<0.01), but did not show a significant moderating effect in the path of influence of organizational and technological factors. The findings of the study have practical guidance value for enterprises to promote the application of AI technology, and it is suggested that enterprises should focus on enhancing the relative advantages of technology, strengthening organizational resource allocation and high-level support, and at the same time, reducing the negative impacts of technological complexity through organizational training to promote the effective adoption of AI technology by employees.
With China’s rapid economic development, environmental pollution and energy security issues are becoming more and more prominent, and electric vehicles, as a kind of low-pollution, renewable energy-driven transportation, have become an important alternative to traditional fuel vehicles. However, the popularization of electric vehicles faces the problem of insufficient charging infrastructure. Reasonable charging station siting not only reduces the construction cost, but also enhances the user’s charging experience. This study proposes an optimization method for electric vehicle charging station siting based on the forbidden search algorithm. By constructing a multi-objective optimization model, factors such as construction cost, user satisfaction, carbon emission and charging station service capability are considered, and the hybrid genetic taboo search (GATS) algorithm is used to solve the problem. The results show that the GATS algorithm exhibits high accuracy and fast convergence speed in the optimization process. In the test of the IEEE 30-node system, the optimized siting scheme using this method reduces the line network loss by about 15% compared to the traditional method, and the construction cost is reduced by about 10%. In addition, the siting scheme considering V2G mode further reduces the grid losses and carbon emissions. Overall, the proposed method can effectively balance the cost, carbon emission and user demand, and provides a feasible optimization scheme for the layout of EV charging infrastructure.
College English vocabulary learning faces the problems of blindness, unplannedness and lack of vocabulary learning strategies. The traditional learning system is unable to provide personalized service for students’ individual differences. In this paper, to address the problems of blindness and lack of strategies in college English vocabulary learning, we constructed an adaptive learning system with a hybrid recommendation algorithm integrating knowledge graph and collaborative filtering to provide personalized English vocabulary learning paths for college students. The study adopts TransR model and LSTM model combined with Self-Attention attention mechanism for knowledge graph representation learning, and integrates it with collaborative filtering algorithm with improved cosine similarity computation method to achieve personalized learning resources recommendation. To verify the effectiveness of the system, the study recruited 64 college students for a 7-day English vocabulary learning experiment, and divided them into a control group using the traditional learning system and an experimental group using the adaptive learning system. The results show that the adaptive learning system scored 23.07 in the dimension of resource recommendation effectiveness, which is significantly higher than the 15.18 of the traditional learning system; the students in the experimental group scored 20.54 in vocabulary mastery, which is significantly higher than the 15.83 of the control group; and the experimental group’s score in vocabulary writing reached 22.86, which is 6.77 higher than that of the control group. The conclusion shows that the adaptive learning system based on the hybrid recommendation algorithm of knowledge graph and collaborative filtering can effectively identify the individual differences of learners, provide targeted learning resources, improve the learning efficiency, significantly enhance the effect of college students’ English vocabulary learning, and provide a new way for personalized learning of college English vocabulary.
With the rapid development of virtual reality technology, the display form of video art has entered a new era. The immersive and interactive nature of virtual reality technology provides a richer creative space for video art, especially in the spatial creative expression in video art design. The research firstly constructs an interactive virtual image art space system, which adopts light space transformation technology combined with the immersive display of virtual reality. Secondly, the application effect of the system in video art display is verified through experiments. The results show that the system exhibits excellent performance in scene construction and interactive response, and the average response time of the optical space model construction is 67.2ms, which is much lower than that of the traditional multi-singular constraint system (260ms) and the mixed reality system (325ms). In addition, the system also achieved high ratings in terms of user experience, with interactivity, realism, and hierarchy scores of 93.97, 94.11, and 93.28, respectively, which were significantly higher than those of the comparison systems. The study shows that the application of virtual reality technology in video art display can not only provide richer spatial expressions, but also enhance the audience’s immersion and interactive experience, thus promoting the development of video art display.
Biofuels, as a renewable energy source, are gradually replacing traditional fossil fuels. However, the current yield and conversion efficiency of biofuels still need to be improved. Through metabolic regulation and optimal design, microbial cell factories can be modified to enhance the expression of key enzymes, optimize the supply of precursors, and improve the fermentation conditions, thus significantly increasing the production efficiency of biofuels. In this study, we explored an effective strategy to enhance biofuel production through metabolic regulation and optimal design. Saccharomyces cerevisiae (S. cerevisiae) was used as the host cell, and the biofuel production engineering strain was constructed by LiAc transformation method, and systematic research was carried out to optimize the expression of key enzymes of the synthetic pathway, the supply of precursor substances and the fermentation conditions. The study showed that the best growth state of Saccharomyces cerevisiae was achieved at a glucose concentration of 30 g/L, with an OD600 of up to 2.897, a biofuel yield of 2366.52 mg/L, and a lipid content of more than 55%. The precursor addition experiment showed that the addition of phosphoenolpyruvic acid (PEP) increased the biofuel yield to 202.545 mg/L, which was about 3.3-fold higher compared with that of the no precursor addition group. The results of simultaneous saccharification co-fermentation (SSCF) showed that the recombinant strain optimized for metabolic regulation had a high biofuel yield of 86.91% when using rice straw as feedstock, which was 18.07% higher than that of the original strain. The experimental results confirmed that metabolic regulation and optimal design are effective ways to improve biofuel yield, which provides a scientific basis for the development of an efficient biofuel production process.
The accelerated pace of urban-rural integration and development has pushed the harmonization of occupation and residence functions in rural areas to gradually become an important factor affecting the sustainable development of the region. In this paper, Jilin Province, a classic agricultural province, is taken as the study area to explore the synergistic evolution law of occupation and residence functions. Based on the gray correlation analysis algorithm, the two-way gray correlation model based on slope difference is proposed from the similarity perspective, using the two-way gray correlation based on slope difference to represent the difference in the rate of change. At the same time, the existing rural vocational education supply and demand problems in Jilin Province are analyzed to reflect the structural causes of its rural vocational status quo. And from the three major perspectives of residence, production and ecology, the rural territory is divided into six major functional areas. A two-way gray correlation model based on slope difference is applied to analyze the changes in the structure of rural occupations in different functional zones in Jilin Province, in which the highest percentage of rural agricultural occupations in the urban functional expansion area and the new urban development area is only 38.36%. The advancement of urbanization development has subconsciously affected the adjustment and upgrading of rural occupational structure while diluting the rural residential function and promoting the functional diversification of rural areas.
Due to the limited data transmission under low bandwidth conditions, the performance of traditional multimodal motion and identity recognition cannot be fully released. In this paper, based on the data collected under four motion modes: standing, slow walking, running and walking up and down stairs, 20-dimensional eigenvalues including three-dimensional eigenvalues and combined vector eigenvalues are calculated and analyzed to complete the selection of eigenvalues for the four human motion modes. The acquired feature values are fused into a unified spatio-temporal graph convolutional network (ST-GCN) framework to extract the global spatio-temporal features of the action from both time and space dimensions, and carry out end-to-end training. Meanwhile, in terms of model structure, the feature recalibration structure based on the attention mechanism is selected to recalibrate the shared layer features, and a multimodal action and identity recognition model based on the ST-GCN algorithm is constructed. The accuracy of this model for action recognition can be as high as 99.76% under specific sample division conditions.
Lane line detection is a key technology to realize autonomous driving, which is a fundamental and challenging task in autonomous driving. In this paper, a semantic segmentation algorithm for lane lines based on multi-scale deep feature fusion is proposed. By analyzing the spatial structural properties of continuous elongated lane lines, we design a multimorphic CASPP module, which combines the mutual quality null rate with 1D convolutional branching to enhance the context-awareness of elongated linear features. The DeepLab-ERFC model is further constructed to introduce the enhanced boundary learning of ER Loss based on Hausdorff distance, combined with dynamic gradient correction to alleviate the category imbalance problem, and optimize the prediction boundary using the post-processing of fully-connected CRFs. Experiments on TuSimple, VPG and tvtLANE datasets show that the model significantly outperforms mainstream methods in both accuracy and speed, with average intersection and merger ratios of mIoU reaching 64.62%, 68.79% and 64.62%, respectively, which is an improvement of 2.12-8.31 percentage points over models such as DANet and PSPNet. In terms of real-time, the inference speed reaches 89.34 FPS, which is more than 2.6 times higher than the comparison model. The ablation experiment verifies the effectiveness of the multi-module synergistic optimization, with the CASPP module increasing the mIoU by 5.75%, the ER Loss with gradient correction by a further 6.86%, and the CRFs postprocessing finally pushing the mIoU to 64.62%. Under extreme scenarios (e.g., sudden changes in tunnel light, vehicle occlusion, rain and snow interference), the average accuracy of the model improves by 3.8-21.3 percentage points over the suboptimal method, demonstrating strong robustness. The model constructed in the article significantly improves the accuracy, stability and real-time performance of lane line detection, thus realizing safer and more efficient autonomous driving technology.
UAV 3D reconstruction technology provides explorable new ways to digitize traffic accident scenes. In this paper, a parallelized incremental UAV image 3D reconstruction algorithm (SFM) is proposed. Combining vocabulary tree retrieval and GPS constraints to optimize beam method leveling (BA), it significantly improves the reconstruction accuracy and speed of the accident scene. A traffic accident simulation system based on virtual reality technology is designed to realize pre-collision, post-collision, and initial speed inversion and multi-morphology accident simulation. The results show that: in the multi-group ranging experiments, the absolute error value of UAV ranging in this paper is 0.22 at maximum, and the relative error is only 0.43% at maximum, which is smaller than 5.30 and 8.76% of the traditional method. Combined with the image of 4.5m+25m aerial height to complete the modeling, the absolute error in x and y direction is only 0.00m and 0.58m, and the relative error is 0.125 and 0.250. Using the model to restore the situation at the time of the accident, the change of acceleration at the time of the three head injuries can be accurately calculated.
Under the dual coercion of global climate change and human activities, the study of the driving mechanism of vegetation cover in the ecologically fragile area of the eastern Loess Plateau is crucial for regional ecological recovery. In this paper, the Fen River Basin is taken as the research object, and we integrate the multi-source data of MODIS-NDVI from 2010 to 2024, and construct a nonlinear regression model to quantitatively analyze the longterm impacts of climate change and human activities on vegetation cover. The standardized spatio-temporal dataset was formed through geographic alignment, projection transformation and mask cropping, and the vegetation cover was estimated by the image element binary model, and the trend was analyzed by the Theil-Sen median method. The results showed that the vegetation cover in the Fen River basin showed a significant improvement trend from 2010 to 2024, with 74.31% of the area improved, the proportion of high cover increased from 25.30% to 37.98%, and the area of low cover decreased by 85.3%, with the recovery of the middle and lower reaches being particularly significant. The bias correlation coefficients of vegetation NDVI with precipitation and temperature were 0.672 and 0.473, respectively, with the upstream relying on precipitation with a bias correlation coefficient of 0.702 and the downstream being more strongly driven by temperature, with R=0.633. The contribution rates of climate change and human activities were quantified by the residual decomposition, and the positive contribution rate of climate change averaged 53.10%, with a high of 59.92% in the downstream, and that of human activities was 9.40%, but urbanization downstream led to a negative contribution of 8.63%. Among the key human activity factors, the average correlation coefficient of 0.568 for agricultural expansion and R=0.524 for afforestation significantly contributed to vegetation recovery, while urbanization R=-0.455 and industrial development R=-0.352 inhibited vegetation growth. It can be seen that climate warming and humidification is the dominant factor for vegetation improvement, but human activities can locally strengthen the restoration effect through ecological engineering and agricultural management, and downstream we need to be alert to the potential risk of urbanization squeezing ecological space.
Taking Anle Village mining area as the research object, this paper systematically analyzes the spatial and temporal differentiation characteristics of the chemical components of groundwater and surface water under the influence of mining activities and their driving mechanisms by integrating the hydrogeological model and artificial intelligence algorithms. A three-dimensional hydrogeological model was constructed based on the measured data of 45 groups of water samples collected in 2024. Combining geostatistics and machine learning methods to optimize the parameter estimation, the model was solved by the finite unit method to verify the accuracy. It is found that the surface water and groundwater in the mining area show significant differences in chemical components, and the mean values of the mass concentrations of major ions in the surface water are higher than those in the groundwater, except for NO3 and pH. The hydrochemical evolution is dominated by carbonate rock weathering, supplemented by silicate rock dissolution contributions, and cation exchange shows directional differences. Soil moisture has a significant positive correlation with groundwater level fluctuations, but there is a phase difference of 15-30 days. This paper confirms that the multi-source data fusion model can effectively reveal the dynamic evolution law of hydrochemical processes under the complex geological environment, and provide a scientific basis for the sustainable utilization of water resources in mining areas.
Financial fraud, as a global problem in the financial industry, brings huge economic losses to financial institutions and customers. In this paper, a multi-task financial fraud detection model is constructed based on heterogeneous graph neural network with deep reinforcement learning, combined with variational self-encoder. In this model, the variational self-encoder is combined with graph convolutional network to construct the node input representation coding module, as a way to enhance the multi-task financial fraud data and better mine the structured features of different nodes. The attention mechanism is then introduced to build the relation-aware attention, which deeply mines the input node features, further acquires the neighbor-generated features of different nodes in the network, and combines the mutual information to measure the nonlinear correlation between different random nodes. Then the financial fraud node representation is mapped into the high-dimensional space by the multilayer perceptron, and then the financial fraud prediction confidence of the model is obtained, and different types of loss functions are set to ensure the detection efficiency of the model. The results show that the F1-macro and AUC values of the financial fraud detection model on the self-constructed FFD dataset are 0.749 and 0.925, respectively.Relying on the heterogeneous graphical neural network and the variational autocoder, a multi-task financial fraud detection model can be constructed, which provides a new idea for solving the suspected fraud and money laundering cases that may exist in the field of finance and economy.
Cultural relics are the valuable wealth left behind by ancestors in the process of historical development, and they are an important carrier connecting the past and the present. The development of digital technology provides more development paths for the display of cultural relics. In this paper, we use BERT-BiLSTM-CRF modeling technology to extract the cultural relic entities, construct the knowledge graph ontology and RDF triad, and propose the cultural relics knowledge graph expression model. Combined with the reasoning engine based on the TBCRM model, the determination of cultural relic entities and relationships in the knowledge graph is realized. By adopting the cultural relics knowledge mapping expression model to integrate cultural relics resources and digitally display them, a digital cultural relics museum system construction method is proposed with the back-end data service layer, intermediate application layer and front-end Web browsing layer as the main framework. The application of this method assists in the establishment of a digital display system for the cultural relics museum in Province B. The overall function obtains an average user rating between 70-90, showing a high practical effect.
Energy, as one of the larger contributing industries to greenhouse gas emissions, has an urgent task to reduce emissions, and standardizing the carbon footprint and trading mechanism of the energy market is an important concern for the development of the current energy industry. Under the guidance of the principle of green, low-carbon and sustainable development of the energy market, this paper first uses heterogeneous blockchain and federated reinforcement learning to design a decentralized energy trading mechanism model. It is found that the model fails to realize the intelligent detection and control of carbon footprint, in this regard, on the original model, the carbon footprint origin algorithm is introduced. Combining the above models and algorithms, the current interactive energy market is explored and analyzed. Consumer user 5 has the largest net benefit, with a specific value of 15.05 million yuan, and comprehensive energy supplier 3 has the largest net benefit, with a value of 37,467,000 yuan, indicating that this paper’s model implements the principle of green, low-carbon and sustainable development of energy while meeting the energy needs of consumers and suppliers, maximizing the interests of each other in the process of energy trading, which proves that this paper’s research has excellent practical application value.
The wide application of face recognition technology in the commercial field puts forward higher requirements for the protection of users’ personal privacy data during the recognition process as well as the accuracy of recognition. This paper explains the basic conceptual content of quantum bits and quantum logic gates. Under the theoretical framework, a three-valued XHZ encryption scheme in three-valued quantum states is proposed to complete the construction and optimization of the quantum encryption algorithm. Using the designed quantum encryption algorithm, the public key is generated in the server based on the face feature data, and the private key is used to decrypt in the client, so as to construct the face recognition system based on the quantum encryption algorithm. In the evaluation experiment, the fastest encryption average time is only 2.465ms, and the shortest calculation time for face similarity is only 4.577ms, which shows that the designed system can fully meet the technical requirements of identity authentication while safeguarding the user’s personal privacy and security.
In the context of the rapid development of digitalization, the protection and inheritance of intangible cultural heritage is facing new opportunities and challenges. This paper takes Lanzhou Taiping Drum as an example, analyzes its cultural characteristics and current protection status, and discusses the innovative application of digital technology in the protection of intangible cultural heritage. Combined with high-definition imaging, 3D modeling, big data analysis and other technical means, this paper puts forward a practical path of digital recording, intelligent assistance and cultural ecological reconstruction. Research shows that digital technology can significantly improve the preservation, dissemination and experience of intangible cultural heritage, and promote the development of intangible cultural heritage from local culture to global dissemination. The research of this paper provides theoretical reference and technical support for intangible cultural heritage protection, aiming at promoting the sustainable development of traditional culture in the digital age.
Innovation and entrepreneurship education is an important carrier for cultivating college students’ cultural confidence. This paper constructs an innovation and entrepreneurship smart classroom based on artificial intelligence technology to improve the efficiency of students’ online and offline learning. The knowledge graph is designed from both the schema layer and the data layer to integrate innovation and entrepreneurship education resources. In the knowledge representation module, the knowledge graph embedding (TransE model) and the deep wandering algorithm (DeepWalk) are integrated to realize the accurate recommendation of knowledge. Using the innovative entrepreneurship resource base system based on the knowledge graph and knowledge representation module for assisted learning, students’ cultural self-confidence can be shaped from eight dimensions, including “historical and cultural identity”, etc. The correlation between the eight influencing factors and cultural selfconfidence is more than 0.5, P<0.001, and can explain 80.5% of the variance of cultural self-confidence. Beta values are all greater than 1.600, and three factors such as “linguistic and cultural identity” have a significant impact on shaping cultural self-confidence (P<0.0001).
Given the severe harm caused by vulnerabilities, vulnerability mining targeting the software supply chain has become a key focus for security researchers. As an effective technique for automated vulnerability mining in the software supply chain, this paper applies reinforcement learning algorithms to fuzz testing technology. It models the fuzz testing process using reinforcement learning and then employs the DDPG reinforcement learning algorithm to select strategies and solve the modeled problem. Additionally, this paper proposes an automated software vulnerability repair method based on large models, enhancing the model’s vulnerability repair performance across three stages: input, model itself, and output. Experimental results show that the target site coverage speed of this paper’s vulnerability detection method is 3.43 times and 1.45 times faster than the baseline method, and the discovery speed of real target vulnerabilities is 3.67 times and 1.84 times faster, demonstrating superior software supply chain vulnerability detection capabilities. Compared to other methods, the vulnerability repair method proposed in this paper achieves optimal repair effects for different vulnerability types and vulnerability program lengths, with recall rates improved by 39.38% to 142.49% in comparative experiments. Therefore, the vulnerability repair method proposed in this paper demonstrates superior vulnerability repair performance.
In recent years, bridge health monitoring systems have received widespread attention. By analyzing monitoring data, it is possible to assess the health status of bridges, improve inspection efficiency, and reduce maintenance costs, which is of great significance for ensuring the safety of train operations. This paper designs an FBG strain sensor with adjustable sensitivity based on the principle of FBG strain sensors, and combines it with a monitoring system to perform health diagnostics on bridge structures. From the perspectives of structural safety risks and environmental factors, seven bridge safety risk indicators are proposed. Building on the AHP hierarchical analysis method, the Decision Laboratory method is introduced, and a combined AHP-DEMATEL approach is used to quantitatively assess bridge risk conditions. Based on the average temperature changes measured by FBG sensors, the range is [-48.5, -42.91], and the average strain range is [2859.03, 4915.4]. Most of the tested bridges fall into the third-category risk level, with risk values between 4 and 5.5.
This paper utilizes data mining methods to mine talent profiles. Through the Scrapy framework and text mining methods, talent tags are mined and their features are extracted. To address the limitations of the traditional FCM clustering algorithm, the CFSFDP algorithm is introduced for optimization, proposing a density peak-optimized fuzzy C-means algorithm (FDP-FCM). This algorithm is compared with other algorithms in terms of clustering performance and robustness to evaluate its effectiveness. Regression analysis is employed to explore the influencing factors and differences in graduates’ job-seeking and further education decisions. Finally, a talent cultivation model for traditional cultural integration and innovation based on user profiles is proposed. The FDPFCM algorithm achieved the best performance among all algorithms in terms of F-measure, RI, and Jaccard coefficient. Under the new productive forces, provincial types have predictive effects on the achievement of employment and further education goals for graduates. Academic performance and job preparation have more significant predictive effects on employment-oriented graduates, while academic performance has a more pronounced predictive effect on further education-oriented graduates.
The number of middle school students experiencing psychological crises in the field of cultural education is increasing, with psychological issues primarily manifesting as problems related to adaptability and development, specifically characterized by symptoms such as depression, anxiety, and confusion. To address this, the paper proposes an improved iForest algorithm combined with a decision cluster classifier based on agglomerative kmeans clustering to develop a psychological issue identification model, and outlines an intervention pathway for addressing student psychological issues. In the results of the graded prediction of students’ mental health status, 3.69% of students were found to have Level 1 psychological issues, 11.32% had Level 2 issues, and 15.74% had Level 3 issues. Therefore, it is essential to actively implement student psychological prevention and intervention pathways to maximize the prevention and reduction of psychological crisis incidents among college students.
This study analyzes spatio-temporal data mining and prediction methods and further constructs a prediction model based on spatio-temporal analysis. The LSTM model is used to identify the temporal characteristics of the input data, and the time lag cross-correlation function is used to dynamically assess the correlation between time series. The spatial component is used to visualize the spatial lag relationship, and finally, the component models are integrated and coordinated through a fusion strategy. Based on the study of the effects of soil mineral ion-microbial interactions on phosphorus and sulfur cycles, this research achieves spatio-temporal distribution predictions for phosphorus and sulfur cycles. The abundance of functional genes related to organic phosphorus transformation in soil phosphorus cycle microorganisms, Shannon diversity indices, and soil mineral ions all showed significant positive correlations (P < 0.05). Similarly, as soil mineral ion concentrations increased, the abundance of sulfur reduction genes and sulfur oxidation genes in soil sulfur cycle microorganisms, as well as Shannon diversity indices, also increased. In grasslands, the density of phosphorus and sulfur ions exhibits a relatively stable annual distribution trend, while in paddy fields, the density of phosphorus and sulfur ions shows an increasing trend over time, being more susceptible to the influence of soil mineral ions. The prediction results of the phosphorus and sulfur cycles in non-saline-alkali grasslands for 2024 obtained from this model are generally consistent with the measured results.
Soil mineral ions and microorganisms can convert easily degradable organic phosphorus and sulfur into more stable forms through processes such as adsorption, encapsulation, aggregation, redox reactions, and polymerization. This study selected rice field soil from Shenbei New District, Shenyang City, Liaoning Province, which has been continuously cultivated for many years, as the research object. Specific experimental procedures were established, and component analysis and adsorption kinetics calculations were performed on the samples. Based on this, to explore the impact of soil mineral ions and microorganisms on phosphorus-sulfur cycling, this study combined principal component analysis with regression analysis to construct a PCR model for validation. The results indicate that mineral ion complexes in soil enhance phosphorus adsorption, thereby facilitating soil phosphorus cycling, and that phosphorus-sulfur cycling exhibits certain differences across different soil types. The relative importance of soil mineral ions on phosphorus-sulfur cycling reached 31.42%, and both soil mineral ions and microbial abundance exerted a significant positive influence on phosphorus-sulfur cycling (P < 0.01). Therefore, optimizing mineral ion and microbial content in soil can significantly enhance phosphorus-sulfur cycling efficiency and further improve soil fertility.
For many years, staff members of township governments in China have been facing an excessive workload. The leader-member exchange (LMX) relationship is considered an important factor that may promote burden reduction at the grassroots level. This study developed a scale to measure the perceived burden reduction at the grassroots level through a survey and data analysis of 443 township government staff members in China. Based on social exchange theory and self-determination theory, the research results show that: (1) The perceived burden reduction at the grassroots level consists of two dimensions: perception of workload reduction and perception of motivational care; (2) There is a significant positive correlation between the leader-member exchange relationship and the perceived burden reduction at the grassroots level among township government staff; (3) There is a significant positive correlation between the leader-member exchange relationship and the public service motivation of township government staff, and between public service motivation and the perceived burden reduction at the grassroots level. Public service motivation plays a partial mediating role between the leader-member exchange relationship and the perceived burden reduction at the grassroots level among township government staff; (4) The application of generative artificial intelligence plays a moderating role in the relationship between the leader-member exchange relationship and the public service motivation of township government staff.
The current analysis is dedicated to the agriculture, rural areas and farmers short videos published on Tiktok in Shaanxi Province, especially focusing on the communication Ecology and the livestream e-commerce models underlying these videos. After doing an analysis of the data and a number of case studies, the research team was able to make several important conclusions. For one, there is little doubt that top-level accounts have great power over content usage and commercial conversion, but such accounts appear to be very reliant on platform recommendations. Some small and medium-sized accounts also seem to have problems with low or negative growth of followers. In the realm of live stream e-commerce, accounts with large followings perform well and certain mid-tier accounts are able to have high conversion rates. But, as is often the case, the monetisation models are rather shallow. The study suggests improvements in the fusion of short-form videos and livestreams, in the content scope, and in the business approaches to stimulate economic development and rural rejuvenation in Shaanxi Province through digital capital.
Inadequate writing skills prevent learners from improving their writing performance and interfere with their subsequent writing performance in real-life scenarios. This study aimed to analyze the effect of metacognitive regulation on authentic writing performance in a web-based constructivist learning environment. The environment maximized the presentation of authentic writing problems that learners faced in their studies and lives. The study used random cluster sampling to draw samples for a single-group pre-test and post-test experiment with 45 students. After that 45 students experimented around two authentic writing topics. The researchers used repeated measures ANOVA to assess the results of the learning achievement data, showing that there was no significant difference between pretest 1 and pretest 2. Posttest 1 and posttest 2 were significantly higher than pretest 1 and pretest 2. In addition to this, the researchers measured the use of metacognitive regulation to intervene in authentic writing learning through metacognitive interviews (process evaluation). The researchers collected and analyzed interview data from the 45 participants mentioned above. The results of the analysis of the metacognitive regulation interview data were consistent with the participants’ learning performance. From the interview transcripts, it was clear that participants perceived metacognitive regulation significantly contributed to authentic writing learning performance. A limitation of the study is that the group of participants in the experiment were all grade 10 students, and the experiment was not conducted among learners of different ages and experiential backgrounds.
As of now, the use of PC innovation has understood the change of individuals’ creation and way of life, and furthermore advanced the improvement of computerized media workmanship. The current media digitization and artistic strength is more and more powerful than the previous application. Involving its high level techniques and advancements for data show, this paper proposed to utilize AR innovation to coordinate and methodicallly develop galleries under the craft of computerized media workmanship, which is useful to dissect and tackle objective issues, for example, biological lopsidedness and single framework capability in advanced media workmanship. Based on the principles and laws of augmented reality technology, the construction and optimization of the museum guide system under digital media art is carried out. In the system evaluation experiment, the classical image is first used as the target image, and the image of 120 × 120 pixels at the center of the image is used as the image target. The target image is rotated in the range of 0 degrees to 180 degrees, and the feature points are coincident at different angles. In the experiments, RERIEF, ORB and BRIEF were compared. Among them, the ORB algorithm must calculate the orientation of the feature points before constructing the feature descriptor, so the ORB descriptor contains the directional features of the feature points and has rotation invariance. Its principal orientation is defined as the orientation of the feature points in the circular neighborhood, but the overall performance is still slightly worse than the RERIEF feature description. Therefore, the application prospect of AR technology in digital media design is very important.
With the development of modern information technology, network education is becoming more and more popular, showing a trend of rapid development. Compared with traditional education methods, online education is conducive to breaking the restrictions of time and geographical environment on learners, obtaining richer multimodal education resources, and realizing personalized learning. However, in the actual network education, there are some problems such as the lack of students’ autonomous learning ability, the lack of effective learning supervision, the disharmony of classroom relations, and the lack of intelligence and emotion in human-computer interaction systems. In the face of this situation, this paper studied the teaching mental model in the network education environment, with a view to building a more harmonious human-computer emotional interaction system, so as to enhance the level of students’ positive emotional input and improve the efficiency of students’ learning. This paper drew the following conclusions through the analysis and evaluation of the application needs of the mental model of network teaching. 91.77% of the students thought their level of positive emotional input is not high, and 93.07% of the students thought their efficiency was not high enough. Most students were not satisfied with the human-computer interaction system in online education. Experts have high scores in the feasibility evaluation and effectiveness evaluation of the mental model of online teaching. The mental model of network teaching has obvious application demand, and has certain feasibility and effectiveness.
At this stage, the relationship between the natural ecological environment and economic development has attracted more and more attention, and green innovation has begun to enter people’s vision. For companys, green innovation activities can improve their technical level and reduce production costs, which is conducive to improving resource utilization efficiency and ecological and economic benefits, and is conducive to achieving coordination between people and nature, and between the environment and economic development. Based on this, this article examined the green innovation ability of companies and the concept of sustainable development. Under the background of Artificial Intelligence (AI), strategies to enhance the sustainable development ability such as making decisions by using expert systems have been proposed. The strategy to increase the green innovation ability was put forward, and the impact of the concept of sustainable development on the green innovation ability of companys was studied. The following findings were concluded from the experimental study. In terms of green innovation input capacity, both Company S and Company T, which adhered to the concept of sustainable development, have improved their green innovation input capacity year by year. The green innovation input capacity index of Company S was 4.27% higher than that of Company T. In other aspects, Companys S and T, which adhered to the concept of sustainable development, have improved their green innovation and ecological environmental protection capacity index year by year. The concept of sustainable development that companys adhere to is conducive to enhancing their green innovation capabilities.
With the development of educational informatization, the development of open education movement, and the continuous development and maturity of big data, artificial intelligence and other technologies, MOOC teaching has become an important part of educational informatization and an important means to improve the quality of education. Expanding and deepening educational reform, equality in education, equality in individual learning, and equality in ethnic Wushu education are important areas for the training of future Wushu teachers. The rationality of curriculum design is crucial to students’ knowledge acquisition. The 21st century is the century of the Internet. The combination of martial arts courses and open online courses allows students to learn in their spare time. Online MOOC learning is gradually globalized, and educational resources are allocated according to their scale, openness, networking, personalization, and interactivity. Therefore, this paper optimized the curriculum design of Wushu MOOCs through AI technology, so as to promote the effect of Wushu teaching. The results showed that the teaching effect and students’ initiative of Wushu MOOC under AI were higher than those of traditional Wushu courses, and the teaching effect was about 7% higher, and the students’ initiative was 9% higher.
The traditional power system monitoring and control methods still have some problems, such as difficult data processing, insufficient robustness, excessive manual intervention and insufficient adaptability. By introducing artificial intelligence (AI) algorithm, this paper aimed to improve the robustness and data processing ability of power system and realize automatic intelligent control to adapt to the modern challenges of power system. In order to meet the need of large quantity and high quality marked image data during the actual training of power system intelligent monitoring method (IMM), this paper constructed the power system intelligent monitoring image data set. In order to analyze the IMM of power system based on AI technology, the E-R Model (Entity-Relationship Model) database was established, and the variational mode decomposition method was used to extract the abnormal state characteristics of power system equipment in the image. The feature was input into support vector machine (SVM) to realize real-time recognition of abnormal state of power system equipment. This paper also analyzed an efficient single-agent reinforcement learning algorithm, Q-learning, to achieve the optimal coordinated control of power system. In this paper, the power system equipment of a power company was simulated. The results show that the false recognition rate and missing recognition rate of the proposed method were both below 0.4%, while some of the false recognition rate and missing recognition rate of the traditional power system monitoring and control method were over 0.4%. Compared with the traditional method, the identification performance of this method has been effectively improved, and the accuracy rate and recall rate of this method have reached more than 80%. The maximum response time of the proposed method was 1477.18 ms and the maximum processing time was 2452.34 ms, both of which were superior to the traditional power system monitoring and control methods. The proposed method has better system performance. Therefore, the IMM of power system based on AI technology is expected to solve traditional problems such as difficult data processing, insufficient robustness, excessive manual intervention, and insufficient adaptability, which can make substantial contributions to the development of intelligent monitoring and control of power system.
With the development of the economy and social progress, people’s concept of life is gradually changing, and the quality of life is also continuously improving, which has played a significant role in promoting the development of the new media film and television industry. Compared with other countries’ film and television special effects, there is still a lot of room for improvement in China’s film and television special effects technology, partly due to technological reasons. Therefore, using Computer Vision (CV) technology to study new media film and television special effects is of great significance for enhancing the international competitiveness of Chinese film and television and enhancing China’s comprehensive national strength. CV technology has a wide range of applications in three-dimensional (3D) film and television special effects, and has significant application value in enriching and innovating film and television shooting methods, reducing the cost of live action shooting, and other aspects. This article provided an in-depth analysis of the development of CV technology in new media film and television special effects, and compared it with the effects of two-dimensional (2D) film and television, thus hoping to provide technical support for promoting the sustainable development of the new media film and television industry. This article discussed scene 3D reconstruction and character 3D reconstruction based on CV technology, and compared their production efficiency. The experimental results of this article indicated that there were 25 and 106 viewers respectively who were very interested in 2D and 3D films, with 18 and 123 viewers indicating a strong sense of experience in 2D and 3D films. It could be seen that 3D movies and television based on CV technology were more popular because their special effects were very realistic and shocking, which was deeply loved by people.
In the era of digital economy, with the continuous development of e-commerce platforms, the mode of e-commerce helping agriculture has become the main mode of China’s agricultural economic development, and has achieved good results. However, there are also many problems in practical application, which not only have a great impact on rural areas, but also cause certain economic losses. Based on this, from the perspective of the digital economy era, this paper analyzed the current situation of the application of e-commerce agricultural aid model, and put forward some countermeasures and suggestions. Based on the investigation of the actual situation of the agricultural activities carried out by the JD e-commerce platform, this paper also analyzed and compared the choices of the main products of farmers-fresh commodities on the e-commerce platform. The experimental findings showed that the proportion of fresh category orders of POP (pctowap open platform) merchants was stable at more than 80%, and the maximum was 97%, while the proportion of orders of self-operated+FBP (Fulfillment by POP) order mode was only 3%. This also shows that the POP business operation mode has great advantages. Based on the current network experience of rural farmers, especially those in poor areas, this paper gave reasonable suggestions and believed that their own capital risks and losses could be avoided through network marketing.
As the rapid progress of science and technology, the combination of technology and art has brought great innovation to art creation. Multimedia art has become an important part of modern visual art. At the same time, advances in science, technology and culture have changed the concept and methods of education. The new curriculum standards promote students’ innovation and life skills, and encourage multimedia integration into art courses. In order to improve students’ digital media literacy and better meet the social development of the 21st century, art teaching has actively updated its educational philosophy and gradually added courses in photography, computer drawing and design, and personalized animation. Adding 3D printing and other teaching contents to the school art classes and integrating multimedia technology into the art classes would help enhance students’ aesthetic ability and promote the progress of art education in colleges and universities. In the process of development and improvement of multimedia teaching mode, how to control the quality of online teaching for students and teachers is also an essential topic of academic research in advanced education. This paper used image processing technology to study the application of multimedia assisted instruction technology in art teaching. This paper first introduced the application of image processing technology in teaching, including face recognition sign in, student behavior monitoring in class, etc. Then, this paper studied the use of multi-media teaching technology applied in art teaching. The advantages of multimedia teaching technology in art teaching were discussed, and suggestions were made on the methods of applying multimedia teaching technology in art teaching. The experiment part studied the effect of multimedia teaching technology. The research results showed that multimedia teaching technology can greatly improve the classroom content and classroom effect of art teaching, enhance students’ interest in art learning, and greatly improve students’ comprehensive quality and art ability. The students who use multimedia teaching technology have an art ability of more than 85 points, which is far higher than the students who use traditional teaching, indicating that multimedia teaching technology can be well applied to art teaching.
In today’s rapidly developing technology, user interfaces are gradually evolving into a multidisciplinary and integrated design science. In the information age, the user interface design of digital products is a key factor determining the user experience of digital products. The current design of sports training interactive interfaces is too complex, and users may need to spend a long time adapting and understanding the operation of the interface, which limits its convenience in use. If a more accurate, easy-to-use, and intuitive interface design can be provided, athletes and sports enthusiasts can monitor their physical health in real-time on the mobile end, and can view training data at any time to effectively improve training effectiveness. This article analyzed the sports training interaction interface under human intelligent health monitoring technology, and analyzed the development process of human intelligent health monitoring technology and introduced the application of health monitoring technology in smart medicine through real-time case analysis. This article also randomly selected a sports training activity center and learned about the athletes’ needs for sports training interaction interface design through interviews. Based on questionnaire data, data statistics were conducted to retain improvement suggestions. In the preparation work for the design of the sports training interactive interface, the needs of the personnel of the sports activity center for the interface design were analyzed, and the design of the sports training interactive interface for human intelligent health monitoring technology was explored. After conducting a satisfaction survey on interactive gestures, a total of 104 people were satisfied with the interface interaction gesture design, accounting for 86.7% of the total number. It can be seen that satisfaction has increased after the improvement. This article believed that in the design of sports training interactive interfaces based on human intelligent health monitoring technology, emphasis should be placed on considering the needs of target users and adopting appropriate interface structures to support applications.
Macroeconomic policies play a very important role in the development of the stock market. The impact of macroeconomic policies on the stock market is complex and nonlinear, and it is difficult for existing models to accurately predict.In order to improve the level of investment decision-making, this paper uses the deep deterministic policy gradient (DDPG) algorithm to study its application in predicting the impact of macroeconomic policies on the stock market. Through the collection of macroeconomic policies and historical stock data, an intensive learning model is established to predict changes in the stock market based on macroeconomic policies as environmental variables. After training the DDPG algorithm, the model learns the influence mechanism. The experiment analyzed from the three dimensions of volatility, prediction accuracy and return on investment. Compared with the SVM (Supported Vector Machine) and RF (Random Forest) algorithms, the average accuracy rate of the DDPG algorithm was 7.8% and 9.6% higher. Therefore, the DDPG algorithm can more accurately understand and grasp the impact of macroeconomic policies on the stock market, and effectively improve the level of investment decision-making and the rate of return. This article conclusion is of great significance to guide investors to make rational stock investment, and it also contributes to the healthy and stable development of the stock market.
Traditional mobile augmented reality (MAR) has limited processing and graphics rendering capabilities, leading to issues such as stuttering, latency, or crashes during runtime, affecting the user experience. By integrating virtual reality (VR) and 5G networks, users can obtain higher quality images, smoother interactions, and lower latency when using mobile devices, further enhancing user perception and optimizing user experience. The dynamic routing algorithm based on Multi-Armed Bandit (MAB) was used to generate network routing strategies, and global network resource routing was controlled and managed for reasonable routing selection and resource allocation, reducing network transmission latency. The average latency of MAR downloading videos of different sizes under 5G was 41.1% lower than that under 4G. The integration of VR and 5G network for MAR experience optimization is of great significance for improving user experience, expanding application scenarios, and reducing network transmission latency.
The multimedia application technology has many applications in the teaching field, but no research has been found on the use of this technology to the construction of the sports health education of cloud-based platform. The healthy teaching of physical education (PE) should not only rely on teachers’ teaching, but also let students learn to learn independently. The multimedia modeling algorithm in the health cloud biometric authentication and data management system are of great importance in students’ PE learning. It is an attempt to build a sports health education cloud platform using multimedia application technology. In order to make up for the shortcomings of this research direction, this paper starts from the multimedia transmission algorithm, analyzes the relationship between multimedia computing technology and PE, and applies this technology to the construction of the sports health education cloud platform. It then analyzes the teaching effect of the constructed sports health education of cloud-based platform and draws a conclusion. In the study of students’ attitude towards the education of cloud-based platform, it was found that the sports health education of cloud-based platform can meet their needs, and students were also willing to accept it. In the survey of students’ learning needs for the education of cloud-based platform, it was found that the use of the sports health education of cloud-based platform can better meet their sports learning needs and improve learning interest and motivation. In the survey of students’ demand for the functions of the education of cloud-based platform, it was found that the use of the sports health education platform has changed students’ demand for the functions of the education of cloud-based platform. In the survey of how the education of cloud-based platform meets the needs of students, it was found that most people believed that the use of the education of cloud-based platform can meet the needs, and only 5% of students believed that the education of cloud-based platform did not meet their needs. In the investigation of the influence of the education of cloud-based platform on students’ ability, it was concluded that students’ learning ability has been greatly improved after using the sports health education platform. Multimedia modeling has a good role in promoting students’ sports health learning, which can improve students’ learning ability, and can also promote the construction of sports health education of cloud-based platform to become perfect.
Traditional painting methods require a lot of time and energy, and their creative efficiency is low, making it difficult to meet the needs of modern and efficient life. With the development of technology, painting technology has been greatly improved, from manual painting to electronic painting, and now to intelligent processing technology for painting. Among these technologies, fuzzy logic control systems and computer image recognition technology play a crucial role. This paper analyzed a computer image recognition algorithm based on YOLOv3 (You Only Look Once version 3) algorithm, Mask R-CNN (Mask Region-based Convolutional Neural Network) algorithm and residual network network (ResNet) algorithm, as well as a fuzzy logic control system that can be used for automatic color filling, intelligent assisted painting and image enhancement, and analyzed the development of an intelligent painting tool by combining the fuzzy logic control system with computer image recognition technology. The experiment proved that the painting intelligent processing technology analyzed in this paper has better object recognition, object detection and object segmentation capabilities. The highest value of the creation process time of the painting works created using the painting intelligent processing technology analyzed in this paper was 499.92 minutes; the highest average line smoothness score was 133.484; the highest painting accuracy score was 138.36. In addition, most of the experimental participants gave positive feedback on the user experience. This technology can enhance the artistic value and aesthetic appeal of digital painting, providing artists with more creativity and inspiration. In summary, the intelligent painting processing technology based on computer vision and fuzzy logic control systems analyzed in this article could have a positive impact on the development of digital painting, and also provide new ideas and methods for research in related fields.
Conventional concrete has higher stiffness and lower flexibility. At the same time, due to some inherent defects, it is easy to crack in use, which may cause damage to the structure seriously. At present, composite materials have been used to improve the performance of concrete, which is a widely used method. Nanostructure refers to the structure with the size of 1-100 nm or above, which has attracted people’s attention due to its unique and attractive characteristics, and its use exceeds that of most complexes. In this paper, the mechanical properties of dam asphalt concrete were analyzed, and the theory of concrete mechanical properties was introduced. Then, academic research was carried out and summarized on the two key sentences of mechanical properties of dam asphalt concrete and the impact of nano materials on the mechanical properties of dam asphalt concrete. The preparation, characterization, properties and applications of one-dimensional nanostructured materials were summarized. After establishing the algorithm model, various algorithms were proposed as the numerical simulation analysis of the effect of nanomaterials on the mechanical performance of dam asphalt concrete based on neural networks. Then, the related concepts were proposed. At the end of the article, a simulation experiment was carried out. The results such as the superiority of nanomaterials over conventional materials and the average modulus of elasticity of concrete with nanomaterials of about 33416.3 N/mm2 were obtained from the cubic compressive resistance, axial compressive resistance, modulus of elasticity, and flexural strength. Therefore, this paper has practical significance for this kind of research, which can help this kind of academic advancement and give reference. At the same time, the application of electronic imaging in media requires comprehensive consideration of various factors. Therefore, it has become the focus of academic research.
Intelligent education based on multimedia images and artificial intelligence (AI) has broken through the traditional teaching mode. This can provide students with a new way of spanning time and space, sharing resources, and interactive learning, and it has attracted more and more attention, and people’s expectations of smart education (SE) are also increasing. This paper combined multimedia image with AI technology to optimize the smart education management system (SEMS), so as to make it personalized, targeted and intelligent. This can better make up for the deficiencies of the current education form and give full play to its advantages. With the rapid development of information technology (IT), more and more multimedia images and AI were used in smart education at present. How to make SE management information and networking was very important. The experimental results showed that the system security rate was 87% when the number of tasks was 100. The highest system security rate was 99% when the number of tasks was 500. Overall, the security of the system was very high.
With the development of financial markets and the acceleration of globalization, financial risks have become more complex and diverse, and the traditional risk management methods are inefficient and inaccurate. In order to ensure the stable operation of financial institutions and protect the interests of investors, a financial risk supervision system based on the Internet of things and improved ant colony algorithm is designed to monitor the risk status of financial institutions in real time. The Internet of Things technology is used to collect and transmit financial regulatory data, and the collected data is used to assess and monitor the risks of financial markets and transactions, so as to provide decision support for regulators. The improved ant colony algorithm is used to optimize and improve the financial risk assessment model to improve the accuracy and efficiency of the assessment. The effectiveness and performance of the regulatory system in risk regulation are analyzed by testing and testing the system through experiments. In order to verify the effectiveness of the regulatory system, financial market and transaction data collected using iot technology are compared with traditional financial risk regulation methods. After a series of experiments, the average risk assessment accuracy of the system is 88.90%, the average financial risk supervision efficiency is 96.32%, and the average scalability score is 94.45. The system designed in this paper has good performance and can well meet the needs of financial risk supervision under the current complex economic situation.
Arts and crafts design is a comprehensive discipline covering art, literature, history, philosophy and other fields. In modern society, it is more and more closely related to people’s life, such as clothing design, environmental decoration, etc. The major of arts and crafts design is presented to people in the form of art, which brings people more visual enjoyment. The major of arts and crafts design requires people to cultivate solid basic skills of painting, and better grasp the knowledge and skills of combining traditional art and modern technology, so that they can engage in the creation of traditional art and handicraft production in arts and crafts enterprises and related units. In process design, image processing plays a key role. All process information is presented in the form of graphics. However, the current process system platform only provides the image part, which cannot meet the simultaneous processing of graphics and images by users. This paper selected the key links of ceramic industry in process design as the investigation background. The characteristics and new requirements of its process design were deeply researched and developed, and a graphics and image processing system based on process technology was realized, which realized the collaborative work of graphics and images. In the experiment and analysis of image processing, the results showed that the number 1 and number 3 had the highest and lowest accuracy difference, and their values were 0.543 and 0.448. Therefore, it is very necessary to use multimedia and 5G (5th-Generation Mobile Communication Technology) network security repair technology to conduct image processing research on arts and crafts design.
English learning environment is an important part of English teaching and can provide students with space to practice language. Cultivating students’ learning ability is the essence of education and the necessary prerequisite for social development. The formation of English learning environment plays an important role in improving the classroom English atmosphere. In a good English learning environment, students can test their English level, quickly identify the differences between students, and make appropriate compensation and targeted improvement. There are still many defects in the current English learning environment, which cannot effectively promote students’ learning. Therefore, this paper analyzed the differences between traditional and multimedia enhanced English learning environment, and then analyzed the problems that need to be solved in the construction of English learning environment using multimedia according to the feasibility and impact of English learning environment. Finally, this paper put forward some optimization strategies to strengthen the communication and learning between students and multimedia. According to the experimental analysis, the average learning efficiency of students in multimedia English learning environment was 11.7% higher than that in traditional English learning environment, and the average effect of teacher-student interaction was 8% higher than that in traditional English learning environment. In short, multimedia technology and human-computer interaction can promote the construction of English learning environment.
Teaching evaluation is an indispensable and important part of the whole classroom teaching process. With the development of network information technology, the multimodal theoretical teaching mode has entered the classroom teaching. The traditional single-modal teaching evaluation mode is too boring and low in interactivity, which can no longer meet the requirements of modern teaching mode. In order to solve this problem, this paper introduces the multimodal theory under the artificial intelligence scenario into language teaching, and builds a student-centered multimodal theoretical language teaching evaluation system based on the multimodal discourse analysis theory. Through 18 weeks of unimodal, bimodal and multimodal language teaching in the three classes respectively, the students in the three classes were tested after the teaching. The results show that the students’ attention in class has been improved by multimodal teaching, and the students’ performance has improved by 8.8%. The satisfaction of teachers and students has been improved to a certain extent. Language teaching based on multimodal theory can fully mobilize and give full play to students’ subjective initiative and enthusiasm for learning, improve teaching quality, which makes teaching evaluation more abundant, comprehensive, objective and effective.
In view of the influence of different illumination angles, color and intensity of light sources (LS) on the accuracy of crack detection, this text took rail surface detection (RSD for short here) as an example, constructed an optical model to describe the interaction process between light and surface, and realized the improvement of mechanical surface detection accuracy with the help of machine vision technology. Under the circumstances of different LS irradiation angle, LS color and LS intensity, the rail surface image was acquired by using the linear array CCD (charge coupled device) camera. In this text, Karpathy was used to divide the data set, preprocess the image, reduce image noise data and enhance image quality. In this text, gray co-occurrence matrix, Canny edge detection and color moment were used to extract rail surface features, and Convolutional Neural Network (CNN) model was used for feature detection. The results show that the difference between the gray-scale value (GSV) at the crack and the GSV of the normal rail is the largest at a light angle of 15°. Under the environment of white light irradiation and LS intensity of 5000 lumens, the detection accuracy of the CNN model was 98.3% when the illumination angle of the LS was 15°. The optical model of RSD using CNN can effectively improve the detection accuracy.
In the context of the digital age, various digital technologies have appeared, such as wireless networks and multimedia technologies have been used maturely in teaching. The traditional method is rigid, just teaching blindly, while digital teaching can break through the time and space constraints, teachers & students can interact in real time through wireless networks and multimedia devices, creating a positive learning atmosphere. In recent years, an increasing number of teachers have applied digital media (abbreviated as DM here) technology to teaching activities. On the one hand, DM itself has the advantages of convenient operation and comprehensive functions. On the other hand, it can be used to build a teaching system that conforms to the features of modern education. In the digital media teaching (abbreviated as DMT for short) system, digital video is a regularly used teaching method. Whether teachers or students, they can use computers, tablets, intelligent drawing boards and other multimedia devices to find teaching resources and learn teaching content. With the increase of the number and types of videos, the conventional DMT system has exposed shortcomings such as slow video processing speed, video recommendation errors, etc., which ultimately led to a continuous decline in teaching effectiveness. Cloud computing is an advanced network technology, which can process various data accurately and quickly. At present, this technology is quite mature. Under this background, this text studies the video image analysis in DMT with cloud computing. By analyzing the components of cloud computing system (CCS), this text summarizes its application in DMT, and then gives the implementation process of video image analysis in DMT based on image analysis, and finally adds a video image analysis algorithm based on deep learning (DL). The experimental results show that the teaching efficiency is improved by 9.72% after the implementation of the new image analysis application strategy, and the new video image analysis method also improves the processing efficiency of teaching videos.
Due to the wide use of AI (artificial intelligence) technology, machine learning has also obtained better development opportunities and has been more widely applied. At present, the library is in an important transformation stage. In order to adapt to new developments and changes, libraries must adapt to the trend of the times and make corresponding adjustments in functional forms, service methods, reading modes, as well as spatial design and construction management. How to ensure the smooth construction of the library through innovative spatial design methods and safe construction management, so as to provide users with more humanized and in line with the trend of the times for learning and communication, is an important issue in the current development of libraries. In order to better promote the spatial design and construction safety management of libraries, this article introduces machine learning and BIM technology. Through exploring and practicing the two, it is found that using machine learning and BIM (Building Information Modeling) technology in library spatial design and construction safety management is feasible. Compared to traditional library spatial design and construction implementation methods, this method can increase the lighting score in the library space function design by 15.5 and the material design score by 10.7. The score of furnishings design increased by 11.7, the score of decoration design increased by 13.3, and the score of infrastructure design increased by 12. At the same time, this method can also make the principles and requirements of library space design more in line with the current needs, and make the library space design more scientific and reasonable. In addition, the research on machine learning and BIM technology in this text can also enrich the application scope of AI and network physical systems, and broaden their application fields and methods.
With the improvement of China’s economic development and people’s living standards, the demand for talent training in colleges and universities is also increasing. In this context, the smart laboratory came into being. In the construction of smart laboratories, the application of Internet of Things (IoT) is very important. Smart laboratories have many advantages, which can achieve more efficient and accurate information acquisition. In the process of applying IoT technology to the construction of smart laboratories, a lot of information needs to be collected, including various instruments and equipment in the laboratory and laboratory personnel. Therefore, the application of IoT technology in laboratory construction is of great significance to the study of laboratory teaching and the analysis of experimental results. This paper constructed the smart lab through IoT technology, and used IoT big data mining algorithm to analyze the data of the smart lab teaching. The intelligent laboratory and conventional multimedia laboratory based on IoT technology were compared and studied. The research results showed that, under the same other conditions, 46 students in Class X passed the exam after teaching in the smart laboratory, with a passing rate of 92%. There were no people below 50 points. After teaching in the conventional multimedia laboratory, 43 students in Class Y passed the exam, with a passing rate of 86%. There were two others whose scores were below 50. Compared with Class Y, Class X has made significant progress, which showed that the relationship between the two was positive, and IoT technology could better build a smart laboratory.
Nowadays, modern technology represented by unstructured text data information is widely used in all walks of life. According to the company’s unstructured text data information, the establishment of the most advanced company’s financial accounting artificial intelligence model has gradually become the yearning goal of Chinese companies to carry out financial work. In order to solve many problems such as low efficiency of traditional financial accounting and insufficient risk early warning ability, this paper used the Naive Bayes algorithm based on the unstructured text data of enterprises. It can improve the early warning accuracy of enterprise financial analysis and solve the problem of low efficiency of financial accounting, thereby promoting the transformation of financial accounting into an artificial intelligence model. By comparing the accuracy of financial risk early warning with the help of Naive Bayes algorithm and traditional manual mode, it was concluded that the Naive Bayes model algorithm based on enterprise unstructured text data had higher accuracy in corporate financial risk early warning, generally around 98%. It improved the accuracy by about 10% compared with the traditional manual mode, which was conducive to the continuous enhancement of financial accounting data collection, processing, and analysis capabilities.
Flexible supercapacitor has the advantages of short charging and discharging time, high power and durability. As a portable power energy storage device, it shows great development potential. So far, there are still some technical problems in flexible supercapacitors with excellent electrochemical and structural mechanical properties. For this reason, this paper would use cellulose based electrode materials to study the performance of flexible supercapacitor. It is found that the curves of galvanostatic charge discharge under different current densities are similar to symmetrical triangles when the flexible supercapacitor is made of it. It shows that the capacitor has excellent electrochemical reversibility. At the same time, the charge discharge cycle test is carried out using the flexible supercapacitor made of the capacitor and the flexible supercapacitor made of biomass carbon materials. It is found that the materials studied in this paper can make the charge discharge cycle of flexible supercapacitor more stable. The final stability is 94.75% after 12000 cycles. In this paper, 20 experts were selected to evaluate the flexible supercapacitor made of two materials. The score based on the materials studied in this paper was above 4.3, while the score based on biomass carbon materials was below 4. Cellulose based electrode materials can be used to produce flexible supercapacitor with shorter production time than biomass carbon materials, stronger conductivity and strong practicability. Therefore, it is meaningful to study the performance of flexible supercapacitor based on cellulose electrode materials.
International communication has become more and more frequent. English Translation (ET) retrieval can be used in various directions, providing people with more convenient communication, which is a very important way. However, the traditional ET retrieval is too complex, slow and inflexible, which makes it very inconvenient. The depth image was statistically analyzed by data analysis, and the accuracy of Differential Evolution (DE) algorithm was used for accurate translation retrieval. This article compared the ET retrieval based on data analysis depth image and fusion DE algorithm with the traditional ET retrieval. The results of the experiment showed that the average precision rates of the two literary ET retrieval methods were 76.8% and 69.8%, respectively; the average accuracy of the two non-literary ET retrieval methods was 71.3% and 63.1%. Therefore, depth image based on data analysis and fusion DE algorithm can enhance the accuracy of ET retrieval.
Online teaching refers to the use of network platforms for educational activities, which allows students and teachers to communicate and learn online without having to meet face to face. The development of online teaching depends on different countries and regions. In many countries and regions, online teaching has become an important way of education. Especially in recent years, due to the COVID-19 pneumonia epidemic, many schools and universities have turned to online teaching. As people all know, there are many problems in traditional offline teaching. For example, the classroom environment may not be ideal, and the offline teaching schedule is not flexible. Therefore, online teaching mode is gradually accepted by the public, but there are still many problems in online teaching. Therefore, it is necessary to continuously optimize and improve online teaching mode. This paper proposed an online teaching mode based on human-computer interaction intelligence information, which aimed to study and optimize the shortcomings of online teaching mode and optimize the experience of students and teachers. The algorithm proposed in this paper is a gesture recognition algorithm based on human-computer interaction technology. Through this algorithm, the noise in the video image can be removed and optimized, and the hand motion can be extracted and collected through intelligent gesture recognition technology. This can greatly optimize the speed and efficiency of gesture recognition. Through scientific teaching experiments, the results show that after carrying out the traditional offline teaching mode and online teaching mode respectively, people can see that the average scores of Chinese, mathematics and English in the control class are 87.31, 86.54 and 86.21 respectively. The average scores of Chinese, mathematics and English in the experimental class were 88.14, 87.38 and 87.26 respectively. Obviously, online teaching has a better effect on improving students’ performance. Through the research of this paper, it can prove that human-computer interaction technology has a good optimization role in online teaching, and this paper also pointed out a new research direction for human-computer interaction technology and online teaching research.
One of the earliest and profound groups of people who studied color in painting is painters, which is because painters need to use different colors in the creation of their works. Their profound understanding of color is conducive to the creation of works. Many painters rely on their own experience in color design in their works, with a strong sense of sensibility. In order to make color design more rational, this article use artificial intelligence statistics to study image visual color design. Through experiments, it can be found that compared with computer aided analysis, this article used artificial intelligence statistics to improve user satisfaction with color design in different fields. The satisfaction rate with the use of artificial intelligence statistical technology was above 91%, while the satisfaction rate with the use of computer-aided technology was below 89%. At the same time, using artificial intelligence statistical technology can also improve the value of various types of color information in images, which can better assist in the transmission of different color information and improve the effect of image color display.
Basketball teaching is an important part of school physical education (PE) curriculum. It is welcomed and loved by many students. When choosing sports, they are always popular with students. However, with the development of education and the change of the situation, basketball teaching has become more and more complex and inefficient. In the era of rapid development of the Internet, teachers should fully understand and apply the network. This text first analyzed the theoretical basis of the goal of basketball education, and explained the importance of implementing quality education in teaching and paying attention to the cultivation of students’ innovation ability. This text proposed that the orientation of basketball education goals should be based on PE. Then this text analyzed the current basketball curriculum teaching and basketball track image information. It focused on the analysis of three problems: the limitation of teaching content, the lack of optimization and expansion, the limitation of basketball teaching, the lack of extension in the class, and the lack of basketball movement track image information. It pointed out that these problems seriously affect the development of current basketball teaching, and these problems should be solved in time. Then this text proposed to use image video sequence analysis algorithm to strengthen basketball flight path analysis, and proposed the positive value and basic principles of image recognition technology (IRT) in college basketball teaching. This text proposed to improve the application of IRT in basketball flight trajectory, create diversified curriculum content based on IRT and innovate basketball teaching methods based on IRT. Finally, this text combined image and video sequence analysis algorithm with experimental investigation and analysis. According to the experiment and investigation, the image video sequence analysis algorithm was introduced into the construction of basketball trajectory image information. A new image information system of basketball movement track was designed, which can improve the detection efficiency of basketball flight path analysis by 25.8%.
Creating policy and thought curriculum for colleges and schools are a concrete approach to addressing the debate of major universities and political science in the new era. And it takes time to complete the masterpiece “Surin” in high school. Curriculum development and policy studies are the cornerstone for intellectual and policy education in colleges and universities. It is important and helpful to establish “three teachers” and “fundamental ideological and political education” in colleges and universities. In this article, some of the optimization algorithms were selected and described by the algorithms. It is revised PSO algorithm, specifically to solve algorithm problems. It aims to improve the fast integration and global search capabilities of the algorithm. The algorithms described in this document are used for the design and selection of photovoltaic systems. This will further increase the functionality and cost of the proposed algorithm. This article uses interviews and questions to examine the psychological and political structure of higher education. The survey results show that there are some problems in the construction of the current ideological and political education mechanism in Colleges and universities, such as the imperfect system, the conflict between the concept and behavior of teachers’ collaborative education, the lack of students’ subject status and weak sense of acquisition, the low evaluation of teachers on the quality of mechanism construction, and the insufficient support for mechanism construction. 87% of the teachers believe that the political literacy of professional teachers needs to be strengthened. The research using particle swarm optimization algorithm has a 25% larger scope and 48% faster operation speed than the traditional method. For this work, we used a particle optimization algorithm. A system of support and promotion has been developed to provide political and financial support for psychological and curricula theory. At the same time, it creates a comprehensive system of commitment to psychology and politics courses.
Internet groups refer to netizens who have the same interests and hobbies and hold similar views on an event. In the network group, the youth group occupies the main part, and the formation of the youth public opinion is closely related to the network group psychology. The complexity and diversity of network information often make information mixed with corrupt culture, wrong thoughts, false information and so on. It has certain practical significance for ideological and political education to analyze the characteristics of network group psychology and guide the youth public opinion on this basis. Over the recent years, data mining (DM) technology has developed rapidly. Based on DM technology and support vector machine (SVM) model, this paper conducts targeted research and analysis on network group psychology and youth public opinion guidance, aims to accurately grasp the dynamics of online youth public opinion, and respond promptly, thereby reducing the difficulty of public opinion guidance and improving the efficiency of public opinion guidance. The results show that the public opinion guidance platform based on DM reduces the difficulty of public opinion guidance and improves the guidance efficiency by 6.2%, which has an important reference value.
Due to the rapid development of current computer technology, the Internet of Things (IoT) has also received good development opportunities, which has promoted the advancement of Big Data (BD) and artificial intelligence technology to a certain extent, and also made people put forward different requirements for travel. To better satisfy the new demands of current tourists and provide better and thoughtful services for tourists, this paper has conducted an in-depth discussion on smart tourism BD and established a set of smart tourism BD mining model based on edge effects. Through experiments, it was found that the model is more powerful for information mining. Compared with the traditional model, the coverage of resources, transportation, food, accommodation, entertainment and other information in this model has increased by 11656, 13797, 9052, 11013, 13663 and 7388 items respectively. In addition, the improvement of the accuracy of information mining in this model is more conducive to the tourism platform to develop marketing plans, improve user satisfaction with tourism services, and enhance the better growth of smart tourism and the improvement of tourism economic benefits. Among them, the building of the BD mining model under the edge effect in this paper can better enrich the scope of the IoT technology and promote its better development.
With the development of the Internet and the exponential increase in the number of customers in the sports industry, the traditional sports industry is no longer able to provide services to its customers in real time. By utilizing artificial intelligence (AI) as well as edge computing, the intelligence of Internet of Things (IoT) can be improved, which in the sports industry can handle the sports business of edge devices in time to ensure the timeliness of the sports industry, thus improving the sports industry’s ability to process sports information. This paper has compared the traditional sports industry with the sports industry on the basis of edge computing of the IoT. The experimental results showed that between 2016 and 2020, the average economic development level of the conventional sports industry was 64.4%, while the average economic development level of edge computing of the IoT-based sports industry was 76.4%. Innovative ideas for the sports industry that use IoT to intelligently classify sports business data and process time-sensitive data in real time via edge computing of IoT can effectively improve economic development.
Continuing to use severely worn cutting tools during milling processing would cause damage to the cutting tools, which can lead to a decrease in the quality of the machined parts and even result in a large number of unqualified products. If the situation is serious, it can also cause damage to the machine tool and threaten the lives of personnel. The application process of digital twin in tool wear monitoring includes tool parameter collection and sensor installation, establishment of digital twin model, model parameter update and calibration, data preprocessing and feature extraction, establishment of wear monitoring model, real-time monitoring and early warning, experimental design and data collection, monitoring effect evaluation, and cost-benefit analysis. Among them, the digital twin model was established based on the collected data, including the Geometric modeling of the tool, material properties and cutting force model. This article used the CNN+LSTM (Convolutional Neural Network+Long short term memory) method to establish a wear monitoring model, and analyzed and evaluated experimental data. The accuracy and reliability of the digital twin model and monitoring algorithms were verified, while their cost-effectiveness in real production was analyzed. In this paper, the wear monitoring time of digital twin monitoring method B was 25 hours, while that of traditional manual inspection method B was 80 hours. The method proposed in this article has high accuracy and stability under new operating conditions, which can help improve industrial production efficiency and reduce costs.
The deep integration of enterprise marketing and services is an important way to promote digital transformation of enterprises, and it plays an important role in optimizing enterprise services. However, the current integration of enterprise marketing and service still faces problems such as low economic growth, low completion of marketing strategies, and poor service quality. In order to better achieve the deep integration of enterprise marketing and services, this article aims to use blockchain technology to explore the integration of marketing and services in depth, in order to better meet the actual needs of digital transformation and upgrading of enterprises. This article constructs a conceptual model for the integration of enterprise marketing and services, with marketing as the mediating variable, market services as the moderating variable, and fuzzy algorithms in blockchain technology as the core. Empirical tests are conducted through relevant surveys. The research results show that the deep integration of blockchain based enterprise marketing and services can increase the economic benefits of enterprises, resulting in a 3.19% increase in the economic benefits of small and micro enterprises in the first to second quarters of 2021 compared to 2020; The economic benefits in the second to third quarters increased by 13.29% compared to 2020, and the economic benefits in the third to fourth quarters increased by 7.94% compared to 2020. In addition, Cronbach’s of the questionnaire scale in this article α The medium coefficients are all above 0.7, with good reliability. The convergence validity SMC values are all greater than 0.4, indicating better effectiveness and reliability. Research has pointed out that the deep integration of blockchain enterprise marketing and services under the background of digital transformation can promote the improvement of market economic benefits, optimize overall marketing strategies, and promote the improvement of enterprise marketing service quality. This study highlights the important impact of blockchain technology on the economic benefits, marketing strategies, and marketing services of enterprises in the integration of marketing and services, providing strong support for enterprises to achieve digital transformation and upgrading. Based on the above research, this article suggests that enterprises should increase their investment in the research and application of blockchain technology, deeply understand the characteristics and advantages of blockchain technology, and apply it to the deep integration of marketing and services. Simultaneously establish a blockchain based marketing and service system to achieve data sharing, process optimization, and collaborative cooperation. In addition, enterprises need to pay attention to customer experience and data security, ensure the security and privacy of customer data through blockchain technology, and optimize customer service processes using blockchain technology to improve customer satisfaction and loyalty.
In the process of gradually deepening the study of journalism and communication in China, scholars of journalism and communication have made great theoretical improvement and good development in their continuous study. In order to explore the research hotspots in the field of journalism and communication in recent years, this paper, based on the bibliometric analysis method, collected and counted the data of the articles in the top ten journals in journalism and communication, classified them systematically, and used CiteSpace software to draw the relevant knowledge graph. This paper made a detailed analysis of the research hotspots of journalism and communication by using the knowledge graph through the selection of ten major journals of journalism and communication. According to the data, the frequency of media convergence, social media, short video, international communication and digital news was 55, 48, 39, 36 and 24 respectively, and the centrality was 0.51, 0.40, 0.31, 0.22 and 0.21 respectively. The study found that from December 2021 to November 2022, the five research hotspots of the ten major journals of journalism and communication mainly included media convergence, social media, short video, international communication and digital news. In the future research in the field of journalism and communication, attention should be paid to the intersection and integration of communication, sociology and other related disciplines to increase the proportion of empirical research in the field of journalism and communication.
This paper presented the technology of intelligent contracts as a means of achieving transparency in information data. An intelligent contract can enable data transfer transparency and traceability, automatically adhere to predetermined criteria, and provide better control and transparency over the data transmission and storage process. The study used the Enron Email Dataset to confirm that the suggested approach works as intended. This paradigm offered a number of advantages over conventional digital signature techniques like RSA. This approach enhanced data transmission integrity and transparency while guaranteeing the security and dependability of information transfer and storage.
With the continuous improvement of people’s living standards, tourism has also become one of the important activities for people to improve their quality of life. Especially in the context of the digital economy, the development of the tourism industry has been promoted very rapidly. However, most of the current tourism information recommendation systems are information recommendation in a fixed mode, and will not make corresponding changes according to changes in the actual situation. In order to solve this problem, this paper analyzes the development theory of tourism information system, and proposes the design and implementation scheme of tourism information recommendation system based on machine learning. The tourism information recommendation system mainly provides services for tourists and tourism industry players. Its main functions include map navigation, traffic query data and intelligent guidance. Aiming to further study the function of the tourism information recommendation system designed in this paper in real life, it conducts a test research on the recommendation system. The test results show that the tourism information recommendation system designed in this paper based on machine learning has certain practical significance. It can increase tourist attraction revenue by 4.7% and reduce traffic congestion by 3.3%. This prevents tourists from entering the peak tourist period, resulting in a lower feedback rate.
The Building Industry (BI) has developed rapidly. Today, to satisfy the needs of current social development, the BI has begun to rise a wave of green buildings. However, at this stage, the building form of green building has not been widely popularized. The reason is that the construction cost has been high to a large extent, which is also the biggest obstacle to the development of the Green Building Industry (GBI). Therefore, how to adopt effective methods to reduce the construction cost of green buildings and promote the vigorous development of the GBI has become the most important problem facing the development of the GBI. Based on the problem of high construction cost encountered by the GBI at this stage, the ant colony algorithm and distributed clustering algorithm were adopted to reduce the construction cost to the maximum extent and promote the healthy development of the GBI under the premise of ensuring the construction quality from multiple perspectives by building a digital model. By comparing the data obtained from the traditional construction method and the construction method using the ant colony algorithm and the distributed clustering algorithm, it can be seen that the material cost of the same type of building was reduced by 9.7% and the energy use was saved by 30.3% after using the ant colony algorithm and the distributed clustering algorithm. Compared with traditional building forms, green buildings had a better user experience. The cost of garbage recovery of green buildings using ant colony algorithm has been reduced by 27.3%. Compared with traditional buildings, green buildings had absolute advantages in terms of energy conservation, environmental protection and user experience. Therefore, how to better apply the two algorithms to the BI and promote the transformation of the BI to the green BI has important guiding significance.
This paper proposes a deep learning-based multimodal signal fusion and optimization algorithm model to solve the problem of intelligent analysis and emergency response of oil and gas pipeline safety events. The wavelet transform is used to extract the time-frequency domain features of the vibration signal, and the artificial bee colony algorithm is designed to optimize the classification parameters of the support vector machine. The SVD algorithm is selected to reduce the dimensionality to reduce the redundant features and optimize the computational efficiency. In the design of emergency response strategy, a closed-loop management mechanism including leakage detection, graded response and effect evaluation is constructed. The experimental results show that the F1 value of the SVMABC-WT-SVD model reaches 0.994 and mAP@0.5 reaches 99.8% in the ablation test, which is 3.6% and 2.9% higher than that of the SVM model, respectively. On-site stress test verified that the average response latency of the system in high concurrency scenarios is less than 3ms, which meets the real-time emergency response requirements.
Research on the treatment of Alzheimer’s disease based on the analysis of EEG signals can help to cope with the aging of the population. In this paper, the EEG signals of patients were collected as research data by combining channel sampling methods. For the existence of interference artifacts, downsampling method combined with bandpass filter, and independent component analysis are used for signal preprocessing. A time series channel complex network based on deep optimization algorithm is constructed to explore the nonlinear features of EEG signals, and the t-test reveals the pathogenesis of different EEG signal frequency bands. EEG signal acquisition of Alzheimer’s disease patients, the characterization of time-level changes in sub-brain regions, and cognitive therapy control-related practices are carried out to verify the validity of the method in this paper. The results showed that the brain regions with more obvious changes in music stimulation were located in the parietal lobe and temporal lobe for the three indexes of arrangement entropy, sample entropy, and Lz complexity in mild to moderate patients (p<0.05). The regions with more pronounced changes in severe patients were located only in the temporal lobe. The relative power of the frequency band EEG signals of the patients in the experimental group after treatment were significantly higher than those of the control group and before treatment (p<0.05).
This study takes the dynamic planning algorithm as the core tool to construct a dynamic optimization model of college physical education curriculum, aiming to explore the synergistic enhancement of curriculum on college students’ mental health and physical fitness. The scientific allocation of teaching resources is realized through a multi-stage decision-making model, and its efficacy is verified by combining empirical data from a university. The experimental results show that the optimization method based on dynamic planning achieves 98.34% in the utilization rate of teaching resources, which is significantly higher than the 85.25% of the traditional method and the 76.90% of the random forest algorithm. Student satisfaction of 9.42/10, teaching quality of 95.4/100 and curriculum rationality of 91.1/100 are better than the control group. In the subgroup experiments, male students in the experimental group improved their standing long jump by 2.95 cm (p=0.000) and female students shortened their 50-meter run by 0.37 seconds (p=0.000). The total mental toughness score increased from 82.06 to 94.33 (difference 12.27, p<0.001), of which the positive cognitive dimension increased by 4.01 points. The dynamic planning algorithm effectively promotes students' mental health level, physical fitness and social adaptability by optimizing the curriculum structure and resource allocation, which provides a quantifiable practical path for sports reform in colleges and universities.
As a new normal under the trend of “Internet+Education”, adaptive learning mode is facing the problems of unsuitable resource recommendation and insignificant learning effect while widely popularized. This paper analyzes the learning process of adaptive learning algorithm, makes clear the important components of adaptive learning system centered on learners. Considering the differences in learning styles of different students, the learning style model and learning resource model are constructed successively. By calculating the similarity between students’ learning styles and learning resources’ learning styles, personalized recommendation based on learning styles is completed. Then we elaborate three personalized resource recommendation algorithms based on learning style filtering recommendation algorithm, collaborative filtering recommendation algorithm, and association rule recommendation algorithm, which adapt to different learning styles in order to recommend resources. Subsequently, the overall framework of the system is designed to form a personalized recommendation system for Civic and Political Education, which consists of three layers: data layer, business layer and user layer. The learning style model is utilized to classify learning styles into four types, namely active and reflective, perceptual and intuitive, visual and verbal, and sequential and global, based on the individual situation of the research subjects. On this basis, the click rate of text resources and video resources recommended by the personalized recommendation system for political thinking education are both above 90.00% and up to 98.71%. It shows that the personalized recommendation system designed in this paper can accurately adapt to the learning preferences and learning styles of the learners, so as to recommend the most compatible learning resources.
In the context of the digital era, the real-time and accuracy of enterprise accounting costing has become the key to improve the efficiency of decision-making. This paper proposes a comprehensive method system integrating rough set theory and attribute approximation algorithm, aiming at reconstructing the framework of enterprise cost accounting through technological innovation and process optimization. Aiming at the problems of low efficiency and redundant accounts in the existing computerized accounting system, the paper proposes the development of customized accounting software and the strategy of setting up cost items scientifically to optimize the classification and aggregation of direct materials, labor and auxiliary expenses. It also introduces the attribute simplification algorithm of rough set theory, reduces data redundancy through knowledge granularization and dimensionality reduction technology, and combines with the heuristic greedy algorithm to realize dynamic cost tracking and refined management. The empirical part takes Building Construction Enterprise A as a case study, and the relative error of the data mining-based procurement cost accounting system is reduced to 0.175%, which is significantly better than the traditional method (1.135%). Meanwhile, the attribute approximation algorithm is outstanding in memory performance, compared with Genmax, MAFIA and other algorithms, the memory consumption is reduced to 263.59 in a huge scale dataset (700,000 records) with 20% support, which verifies its high efficiency and applicability in complex data scenarios.
BIM is a discipline that combines construction engineering and information science, which can well solve the relevant problems arising in urban human defense projects and also improve the efficiency of visualization. Firstly, the acoustic wave sensor is used to obtain the acoustic wave monitoring data of the building construction site, and for the data with noise, the Kalman filtering method can be used for denoising, so as to obtain the real building construction site data. According to the real data of the construction site after noise reduction, the BIM model of the construction site is established, and a non-contact acoustic wave monitoring data processing method based on BIM technology is designed. Starting from the definition scope of the civil defense project, the computational research program of BIM technology in the reinforcement design of the civil defense project is formulated, with the help of which the reinforcement design of the civil defense project is explored and analyzed. In the time interval of 120ms and 765ms, the reinforced civil defense project shows excellent impact resistance performance, and the displacement slope of the project reinforced nuclear level 6 civil defense wall is significantly larger than that of the nuclear level 5 civil defense wall. In summary, the method of this paper has an important guiding value to improve the safety and stability of the human defense project, and accelerate the pace of highquality development of the building.
Human defense engineering is an important part of building design, in order to further improve the quality of human defense engineering design in construction projects, this study introduces BIM technology and non-contact impact echo acoustic frequency method into the health monitoring of human defense engineering. Based on BIM technology, a quality monitoring system for human defense project is designed to realize the comprehensive supervision and control of the quality of human defense project. Then the impact echo acoustic frequency method is combined with YOLOv2-Tiny algorithm to construct the discriminative technology for health monitoring of human defense projects. It is found that the discrimination technology can accurately identify the defect type and location, and the overall prediction accuracy reaches more than 96%. At the same time, the application of BIM technology in the case study avoids the problems in the construction design of the civil defense project and guarantees the construction quality of the civil defense project, and the error between the thickness of the steel pipe concrete member obtained by the proposed discriminative technology and the actual one is less than 2.81%.The fusion of the BIM technology and the impact echo acoustic-frequency method provides a brand-new solution for the quality supervision of the civil defense project.
Under the background of digital technology, the integration of aesthetic education into the reform of curriculum Civic and political education can enrich the content of Civic and political education and create a more attractive Civic and political education and education system. This paper explores the relationship between aesthetic education and civic education through the exploration of educational objectives, educational content and educational methods, formulates civic objectives for the specific topics of aesthetic education, extracts the corresponding civic elements and aesthetic elements, and designs a school-based curriculum for aesthetic education. A synergistic LSTM-SVR model is established to predict the educational effect of synergizing aesthetic education and Civic and political education. In the TensorFlow learning scenario, the average values of model accuracy, recall, and F1 score are 81.9, 80.4, and 79.4, respectively, and the predictive performance of the model is gradually improving. Through the model to analyze the participation and activity of the aesthetic and civic education activities, the proportion of learning enhancement value more than 1.5 in the teaching practice class is 21.321%, which indicates that the digital technology-assisted traditional aesthetic and civic education collaborative education has a more stable and positive impact on the enhancement of the learning effect.