Construction of a Smart City Network Information Security Evaluation Model Based on GRA-BPNN


  • Xiang Li Department of Electronic Information Engineering, Lanzhou Vocational Technical College, Lanzhou 730070, China



Smart City, Network Information Security, GRA, BPNN


In this study, we propose an optimized network information security evaluation GRA-BPNN model based on gray correlation analysis method combined with BP neural network model, and make corresponding optimization for network information security evaluation index. Simulation experiments are conducted to analyze the experimental model, and the simulation results show that the test sample values reach the best training performance at the 7th iteration after 13 iterations, and the R-values in the regression of training results all reach above 0.99, and the data are well-fitted. When the number of training iterations reaches 13, the training gradient is 0.00067928, the value of Mu is 0.001, and the validity test value is 6. The GRA-BPNN model scores 0.028 higher than the GRA method, which is in line with the expected error, and the higher score also proves that the GRA-BPNN model is more comprehensive and specific in its scoring consideration.


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Author Biography

Xiang Li, Department of Electronic Information Engineering, Lanzhou Vocational Technical College, Lanzhou 730070, China

Xiang Li obtained his ME in Computer Science and Engineering (2010) from Xidian University, Xi’an, Shaanxi. Currently, he is working as an Associate Professor and the Director of Information Security Office in Department of Electronic Information Engineering, Lanzhou Vocational Technical College, Lanzhou, Gansu. He was invited as an expert to deliver various technical talks on computer network technology and information security. He is also serving and served as a supervising arbitrator for National Vocational College Skills Competitions. He has published articles in more than 10 national and international journals and conferences proceedings. His areas of interest include computer network, computer application, information security and streaming media technology.


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How to Cite

Li X. Construction of a Smart City Network Information Security Evaluation Model Based on GRA-BPNN. JCSANDM [Internet]. 2023 Jan. 31 [cited 2023 May 31];11(06):755–776. Available from: