基于熵权理论的模糊风险评估方法在网络系统中的应用  

Fuzzy Risk Assessment for Campus Network System Based on Entropy Theory

作　　者：付沙[1] 刘文彬[1] 薛娟[1] 

机构地区：[1]湖南财政经济学院信管系,湖南长沙410205

出　　处：《数学的实践与认识》2013年第17期103-109,共7页Mathematics in Practice and Theory

基　　金：湖南省高等学校科学研究项目(12C0559)

摘　　要：针对信息系统风险评估中过分依赖主观赋值的现象,提出一种基于熵权理论的模糊风险评估方法,并将其应用于校园网络系统风险评估.构建了校园网络系统风险评估的递阶层次结构模型,结合层次分析法和模糊逻辑法对各风险因素的风险值进行分析,评价系统中值得关注的风险因素.在此基础上通过熵权理论计算整个系统的风险度以评价校园网络系统的总体风险情况,通过实例分析表明该方法可行有效.The paper proposed a fuzzy risk assessment method based on the entropy theory, and apply it to the campus network system risk assessment, for the phenomenon of over- reliance on subjective assignment in information systems risk assessment. It constructs the hierarchical structure model of a campus network system of risk assessment, using the combination of analytic hierarchy process and fuzzy logic to analysis the risk value of various risk factors, to evaluate the risk factors of concern in the system. On this basis, calculate the risk degree of the entire system through the entropy theory to evaluate the overall risk profile of the campus network system, and the case study shows that this method is feasible and effective.

关 键 词：熵权理论 信息系统 风险评估 模糊集理论 隶属度矩阵 

分 类 号：TP315[自动化与计算机技术—计算机软件与理论] O159[自动化与计算机技术—计算机科学与技术]