梯形模糊数的信息安全风险群决策评估方法  

Group Decision Making for Information Security Risk Assess Method Based on Trapezoidal Fuzzy Number

作　　者：吴叶科[1] 宋如顺[1] 陈波[2] 

机构地区：[1]南京师范大学数学科学学院,江苏南京210046 [2]南京师范大学计算机科学与技术学院,江苏南京210046

出　　处：《南京师范大学学报（工程技术版）》2011年第1期51-55,共5页Journal of Nanjing Normal University(Engineering and Technology Edition)

摘　　要：针对含有语言评价信息的群决策问题,将梯形模糊数引入信息安全风险评估中,提出了一种基于梯形模糊数的信息安全风险群决策评估方法.首先,用梯形模糊数来表达决策者的评价信息,然后给出梯形模糊数判断矩阵的集结步骤,最后通过计算各威胁所带来的风险与负理想解的相对贴近度,对威胁程度进行排序.通过实例分析,说明了该方法的可行性和有效性.In view of the group decision-making problem based on linguistic terms, a group decision making for information security risk assess method based on trapezoidal fuzzy number was proposed with the introduction of trapezoidal number into information security risk assessment. Firstly, the language estimate information was transformed to trapezoidal fuzzy number, then the aggregation steps of collective trapezoidal fuzzy number complementary judgment matrix are giv- en, finally the ranking of all threads was judged by the relative closeness between risks and negative ideal solution. An example is given to illustrates the practicability and validity of this method.

关 键 词：语言变量 梯形模糊数 群决策 信息安全风险评估 理想点法 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]