模糊熵层次分析法的网络安全评估方法研究

针对传统模糊层次分析法(Analytic Hierarchy Process,AHP)存在固定权重使得评估精度较低和简单的极大极小操作符影响评估准确度等问题,提出了一种改进的模糊熵层次分析模型用来评估网络安全。模型中主观权重利用层次分析法求解,客观权重采用信息熵计算,并给出了判断矩阵的一致性条件。最后,以实际案例的网络评估案例对本文所提方法进行分析验证,验证了判断矩阵满足一致性要求。通过与AHP法、信息熵法和传统模糊AHP法的对比,验证了本文所提方法在处理网络安全评估时具有一定优势。

Research on Network Security Evaluation Based on Fuzzy Entropy Analytic Hierarchy Process

In view of the problems such as a lower precision in the fixed weight of traditional fuzzy AHP and a low accuracy in the simple extreme-minimal operator,an improved model of fuzzy entropy AHP is proposed to evaluate network security.The subjective weight in the model is contained by AHP,and the objective weight is calculated by information entropy.Also,the consistency condition of the judgment matrix is given.Finally,the method proposed in this paper is analyzed and verified by an actual case,where the judgment matrix is verified to meet the consistency requirements.Compared with methods of AHP,information entropy and traditional fuzzy AHP,it is verified that the method proposed in this paper has some advantages in dealing with network security evaluation.