A Forecast Approach of Network Security Situation Base on Optimal Fuzzy Grey

Forecast of network security situation is an important part of network security situational assessment. The concept of network security situational assessment will be introduced. Then a model of network security situational assessment is summarized based on the concept. On the other hand, The method of GM(1,1) modified by residual error is mentioned. And this method will be improved into optimal fuzzy grey model. The model of optimal fuzzy grey will be used to forecast value of network security situational assessment. The results show better effects in simulation test, compared to the original model.