Research On Situation Assessment And Prediction Model In Network Security Situation Framework

The Internet makes our lives convenient, but also brings many problems. The network security situation of power grids plays a significant role, yet current studies on this topic are very limited. After analyzing and comparing the existing security situation assessment methods, the author proposes a network security situation assessment model based on AHP_FCE, and a network security situation prediction method based on ARMA model and SVM model. This paper completed the following work.(1) Analyzed and compared existing network security situation evaluation and prediction models and so on;(2) Built a network security situation evaluation model based on AHP_FCE, using knowledge in both AHP and fuzzy comprehensive evaluation, and experiment is done to test the model;(3) Built a network security situational prediction model, combined ARMA model with SVM model. This method is relatively more stable and reliable than each single model;(4) Improved SVM model with genetic algorithms;(5) Completed the implementation of the network security situational awareness system, using the assessment model and prediction model mentioned in the paper.