主观信任下网络风险的机会测度  

The Chance Measure of Network Risk under Subjective Trust

作　　者：孙永清 SUN Yong-qing(Dean's Office,Shandong Technology and Business University,Yantai 264005,Shandong,China)

机构地区：[1]山东工商学院教务处,山东烟台264005

出　　处：《兰州交通大学学报》2021年第5期45-50,共6页Journal of Lanzhou Jiaotong University

摘　　要：研究主观信任下的网络的不确定性及其风险度量问题.主观信任的网络的不确定性,主要是模糊性与随机性,这二者同时存在并导致网络系统风险.依据主观信任值的数据,利用对称三角形模糊分布参数优化估计与模糊随机理论,建立主观信任的网络风险度量模型,依靠机会测度刻画用户所处的网络风险.仿真分析表明模型可以有效地刻画用户所处的网络风险.在更高层次上,揭示并刻画网络风险问题,把主体交互风险研究由主体局部发展到整体网络空间.The network uncertainty and its risk measurement problem is studied under subjective trust.The uncertainty of subjective trust network was mainly fuzziness and randomness,which both exist at the same time and lead to network system risk.Based on the data of subjective trust value,the network risk measurement model of subjective trust is established by using the optimization estimation of fuzzy distribution parameters of symmetric triangle and fuzzy random theory.Simulated analysis shows that the model can effectively describe the subscriber's network risk.At a higher level,it can reveal and describe the network risk,and develop the research on the subject interaction risk from the subject part to the whole network space.

关 键 词：信用风险 主观信任 模糊随机变量 机会测度 对称三角形模糊变量 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]