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      10 March 2023, Volume 1 Issue 3 Previous Issue    Next Issue
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    Sentiment Analysis of Film Criticism Text Based on LDA Model
    GUO Xiao-lei NIUXiao-lei HE Li-qi
    Computer & Telecommunication. 2023, 1 (3): 1-4.   DOI: 10.15966/j.cnki.dnydx.2023.03.002
    Abstract  
    This paper uses Python technology to obtain relevant data from the Douban platform, analyze user data, urban distribution
    and other information, and uses LDA model to build models, train models, analyze and evaluate the emotional trends in user film reviews, including theme confusion and theme consistency. The analysis results help to better understand the habits of audiences in different regions, subjective emotions about film and television works, and have certain reference significance for evaluating and adjusting film market projects.
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    Mathematical Model of High Temperature Protective Clothing Based on Finite Difference Method
    HE Wen-hai LI Yi-lin LI Zi-tao TANG Guo-ping
    Computer & Telecommunication. 2023, 1 (3): 5-9.   DOI: 10.15966/j.cnki.dnydx.2023.03.008
    Abstract  
    For the problem of high temperature protective clothing design, this paper studies the parameters of the layers of material
    to establish heat conduction model based on the law of conservation of energy and Fourier's law, attaining the partial differential
    equations with variable coefficients. It uses finite difference method and traversal iterative method to solve the equations, attaining the most suitable convection heat transfer coefficient and temperature change rule, and further getting the optimal thickness and the highest heating temperature. Finally, the model is tested. The deviation from all of the final data is 0.99688, the model results have high accuracy.

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    Teaching Practice and Analysis of E-commerce Specialty under the Concept of CBE
    SUN Hui-ting MA Jian
    Computer & Telecommunication. 2023, 1 (3): 10-14.   DOI: 10.15966/j.cnki.dnydx.2023.03.004
    Abstract  
    In recent years, with the rapid development of e-commerce, the contradiction between supply and demand of e-commerce
    talents is also increasing. By investigating the job requirements of e-commerce enterprises, this paper analyzes the current training
    mode of e-commerce specialty and its existing problems, and puts forward a teaching mode of e-commerce specialty course based
    on CBE concept. Taking 2020 e-commerce majors of Bozhou Vocational and Technical College as the research object, this paper
    sets up two groups: the research group and the control group, compares and analyzes the learning effects of these two groups of students. The results show that the research group has obvious advantages over the control group in both theoretical and practical
    achievements and teaching satisfaction.

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    Construction and Analysis on the Development Model of Chinese E-government
    from Multi-dimensional Perspective
    GUO Xu-kun
    Computer & Telecommunication. 2023, 1 (3): 15-19.   DOI: 10.15966/j.cnki.dnydx.2023.03.001
    Abstract  
    E-government is an important component of digital China and one of the important issues of the Party and the state in the
    construction of infrastructure and the living level of people. To promote the construction and development of Chinese egovernment by studying the evolution and development model of e-government, it is of great significance to promote the development of digital economy and digital society. From the multi- dimension information of the background of the times, policy measures, application practice and technological innovation, the multi-dimensional spiral model of Chinese e-government evolution and development is emphatically constructed. From the aspects of problem- oriented proposition, model theory construction, model practice analysis, model application expectation, etc., the paper pushes forward and reveals the path of "technological innovation ? application driven? time policy>>>value for all" path mode in the evolution and development of e-government in China layer by layer. It also analyzes the new trend of the development of core technology framework of digital government in the future. The paper constructs a multi dimensional intertexture and spiral evolution model of Chinese e-government, and according to the model, it reveals the evolution and development path mode of Chinese e-government.
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    Collaborative Spectrum Prediction of Cognitive Radio Based on LSTM Neural Network
    CHEN Ling-ling ZHANG Gang
    Computer & Telecommunication. 2023, 1 (3): 20-24.   DOI: 10.15966/j.cnki.dnydx.2023.03.010
    Abstract  
    To solve the problem of spectrum resource shortage, a key technology of cooperative spectrum prediction in cognitive radio network is adopted to improve the accuracy of spectrum prediction in this paper. This technology can effectively avoid the problem that the single user spectrum prediction is easy to be affected by environmental interference. In this paper, we first model the authorized channel state using queuing theory, predict the future time slot state of the channel by LSTM, and then summarize the final prediction results. Finally, by comparing LSTM with RNN and MLP methods in Python simulation, this paper takes prediction accuracy and F1 value as performance indicators to verify, and the results show that LSTM is superior to the other two algorithms.

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    Interactive Design of "1+X" Training Platform Based on GearVR
    LI Guang-song GUAN Ze-liang
    Computer & Telecommunication. 2023, 1 (3): 25-29.   DOI: 10.15966/j.cnki.dnydx.2023.03.014
    Abstract  
    To enrich the "1+X" virtual reality skill level certificate training methods, this paper uses Unity3d game engine, GearVR
    helmet and Galaxy S7 mobile phone to develop an interactive application of "1+X" virtual reality application development vocational skill level certificate (intermediate) based on oculus utilities and GearVR SDK. The virtual interaction is finally realized by focusing with helmet collimator, responding to input with gaze, click, ray, helmet touchpad and wireless controller, and cooperating with the animation state machine and UGUI system of Unity3d. It is packed into APK files and is tested on the galaxy S7 mobile phone platform. The test results show that the platform realizes the related functions. The research provides a virtual reality solution for "1+X" training.

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    Research on Library Inventory System Based on Ionic Framework and MVC Architecture
    XU Ming-qiang
    Computer & Telecommunication. 2023, 1 (3): 30-32.   DOI: 10.15966/j.cnki.dnydx.2023.03.011
    Abstract  
    To promote the wisdom campus library management information construction, this paper puts forward the inventory control system based on Ionic framework and MVC architecture, which realizes the information of the workflow of university library.
    The system can greatly reduce the cost of labor consumption, reduce manual misoperation, effectively improve the efficiency of the
    inventory control, and facilitate the library management.
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    Research on Prediction of Sales Volume Based on Hybrid Intelligent Algorithm
    WANG Zi-run WANG Qian-yi YUAN Wen-jia WANG Xiao-meng WEI Xiao LIU Wei FAN Xiu-zhu
    Computer & Telecommunication. 2023, 1 (3): 33-37.   DOI: 10.15966/j.cnki.dnydx.2023.03.020
    Abstract  
    With the booming development of the new industrial park project of fruit canning processing enterprises in Pingyi County,
    it is of great practical significance to accurately predict the sales volume of canned goods for enterprises to make correct decisions to achieve the expected revenue target. The new hybrid intelligent algorithm proposed in this paper uses Newton interpolation formula and 3/8 Simpson equation to improve the adjacency matrix in the grey prediction model, changes the coefficient of the whitening equation, and combines BP neural network to predict the sales volume of canned fruit. The algorithm is obtained by comparison with the actual sales data analysis of the root mean square error (RMSE), mean absolute percentage error (MAPE) and mean absolute error (MAE), which are 2.4%, 2.0 and 1.3 respectively. The algorithm accuracy is higher compared with the original hybrid intelligent algorithm, effectively improving the reference value, and can help enterprises more reasonable arrange production.

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    Research and Practice on the Construction of Teaching Innovation Team for Teachers Majoring
    in Computer Application Technology
    XIA Yan
    Computer & Telecommunication. 2023, 1 (3): 38-41.   DOI: 10.15966/j.cnki.dnydx.2023.03.005
    Abstract  
    The construction of teaching innovation team has become the key field of vocational college construction, and is also an
    important force to promote the cultivation of high-quality technical talents. Team building should combine professional characteristics, summarize experience in practice, and gradually form a construction theory that is truly applicable to the specialty and the characteristics of vocational education. Take the teaching innovation team construction project of teachers majoring in computer application technology for example, this paper proposes to build the teaching team with innovation consciousness of "brave innovation and true innovation", and expounds the methods and experiences of strengthening the team empowerment in detail to improve the over all level of the team, enhance the innovation consciousness, and cultivate the team innovation ability.

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    Improved Design of a Linear Stabilized Power Supply
    YAN Qing-feng
    Computer & Telecommunication. 2023, 1 (3): 42-48.   DOI: 10.15966/j.cnki.dnydx.2023.03.019
    Abstract  
    The high efficiency and low ripple of linear stabilized power supply is one of its advantages. Through comparative analysis, this paper puts forward an improved scheme of using discrete components to design linear stabilized power supply. In this
    scheme, the power frequency transformer is selected to realize the AC voltage conversion of 220V, and the bridge rectifier circuit
    and capacitor filter circuit are selected to realize the rectification and filtering of the circuit. In the voltage stabilizing circuit, the sampling circuit samples through the sampling resistance; the reference voltage is provided by the TL431 and the voltage divider; the error amplification circuit is amplified by the LM358 dual operational amplifier and the voltage is adjusted by two power tubes.
    Through the simulation of the final circuit and repeated debugging of the hardware, the continuous adjustable voltage from 220v input voltage to 0~20V output voltage is realized, and the current is stable at 1A output, and the ripple and differential voltage measured by the circuit are in line with the expected specifications.

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    Research on a Three-layer Extraction and Anti-overfitting Gesture Recognition Algorithm
    Based on Neural Network CNN
    SHEN Ya-ting ZHANG Wei-jun BAI Yu-xin
    Computer & Telecommunication. 2023, 1 (3): 49-54.   DOI: 10.15966/j.cnki.dnydx.2023.03.007
    Abstract  
    Based on the CNN model, a gesture recognition algorithm named Add_Layer_CNN (A_L_CNN for short) is proposed,
    which is a three-layer extraction and anti-overfitting gesture recognition algorithm based on neural network CNN. A_L_CNN changes the single-layer convolution pooling in the traditional CNN model to three-layer convolution cubic pooling structurally, and adds the Dropout (random deactivation) layer to prevent overfitting. A_L_CNN is compared with traditional CNN and SVM. Experimental results in multiple test sets show that the average accuracy of the proposed A_L_CNN model is about 98.56%, that of the traditional CNN model is about 96.11%, and that of the SVM model is about 87.25%. Therefore, the accuracy of the proposed A_L_CNN model is higher.

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    Research on the Quality Assurance Path of Online and Offline Integrated Teaching
    Based on PDCA Cycle
    ——Take Instrumentation Analysis for Example
    CAI Hong-fang
    Computer & Telecommunication. 2023, 1 (3): 55-58.   DOI: 10.15966/j.cnki.dnydx.2023.03.015
    Abstract  
    Information technology has empowered education, and online and offline teaching has become a new teaching mode in the
    new era, but there are problems such as teachers' decreasing control over students, uneven teaching quality, unsound teaching quality management system, and imperfect teaching evaluation system. Take Instrumentation Analysis for example, we apply the PDCA cycle to carry out the reform of online and offline integrated teaching, improve the quality of online and offline integrated teaching, perfect the teaching quality management system, and build a complete online and offline integrated teaching monitoring and evaluation mechanism.

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    Exploration on Multi-level Selection and Training Mechanism of Skills Competition Contestants
    in Higher Vocational Colleges from the View of“Post-Curriculum
    -Competition-Certificate”Integration
    DONG Hu-sheng YANG Yuan-feng ZHANG Su SHANG Xian-lian
    Computer & Telecommunication. 2023, 1 (3): 59-61.   DOI: 10.15966/j.cnki.dnydx.2023.03.006
    Abstract  
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    Research on Teaching Reform Practice of Ideological and Political Teaching in Fundamentals
    and Application of Artificial Intelligence Based on Task-driven
    MA Xiu-Li ZHAI Peng-xiang
    Computer & Telecommunication. 2023, 1 (3): 65-68.   DOI: 10.15966/j.cnki.dnydx.2023.03.013
    Abstract  
    According to talent training goal of higher vocational colleges, we implement teaching reform for the course of Fundamentals and Application of Artificial Intelligence with the help of the Chaoxing platform based on task-driven. For the sake of solving
    the two-layer problem of professional education and ideological and political education to realize the fundamental task of educating people in the whole process and educating people in all directions, we take the starting point of the ideological and political elements contained in the teaching content by means of integrating ideological and political education into professional course. Practice has proved that exploration on teaching reform of ideological and political teaching in the course Fundamentals and Application of Artificial Intelligence based on task-driven is not only to comply with the requirements of curriculum reform, but also to actively explore the effectiveness of ideological and political education in higher vocational colleges, which is important for theoretical and practical significance.

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    Design and Implementation of Information Security Tool Library
    WANG Ze-ru FENG Jun-jun
    Computer & Telecommunication. 2023, 1 (3): 69-72.   DOI: 10.15966/j.cnki.dnydx.2023.03.012
    Abstract  
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    Research on Path-dependent Option Pricing Parallel Strategy Based on Heterogeneous Computing
    GONG Zuo-quan
    Computer & Telecommunication. 2023, 1 (3): 73-78.   DOI: 10.15966/j.cnki.dnydx.2023.03.017
    Abstract  
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    Sentiment Analysis of Fine-grained Chinese Short Text Based on Graph Convolution Network
    CHEN Jun-tao LIU Li-ming CHE Yue-qin
    Computer & Telecommunication. 2023, 1 (3): 79-84.   DOI: 10.15966/j.cnki.dnydx.2023.03.021
    Abstract  
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    Text Sentiment Analysis Based on EI-BA Model
    ZHOU Qian-qian
    Computer & Telecommunication. 2023, 1 (3): 85-90.   DOI: 10.15966/j.cnki.dnydx.2023.03.016
    Abstract  
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    Application Research of System Integration in Military Information System
    YAN Peng WANG Qiang
    Computer & Telecommunication. 2023, 1 (3): 85-90.   DOI: 10.15966/j.cnki.dnydx.2023.03.016
    Abstract  
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    Teaching Practice of Network Security Protection with CTF Mode
    HONG Bao-xi
    Computer & Telecommunication. 2023, 1 (3): 94-97.   DOI: 10.15966/j.cnki.dnydx.2023.03.018
    Abstract  
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