基于开放式网络环境的模糊自主信任模型  

Fuzzy autonomous trust model based on open network

作　　者：张仕斌[1] 刘全[2] 曾鸿[2] 

机构地区：[1]成都信息工程学院网络工程系,成都610103 [2]成都信息工程学院统计系,成都610103

出　　处：《清华大学学报（自然科学版）》2006年第z1期1109-1114,共6页Journal of Tsinghua University(Science and Technology)

基　　金：成都信息工程学院科技发展基金资助(CSRF200406);国家统计局项目(LX2002-61)

摘　　要：为解决开放式网络环境中主观信任的模糊性和主体之间信任关系的动态性,提出了模糊自主信任模型。在该模型中,引入模糊理论的隶属度概念来描述信任的模糊性,解决了模糊信任的建模问题;以图论为基础,将网络环境模型化为一个无向图G(V,E),定义了基于本地信息交互的信任评价规则,建立了自主信任建立策略及建立完全可信网络的实现机制及条件。通过仿真实验,讨论了网络拓扑结构对自主信任建立的影响,并以小世界网络模型(-m ode l)为基础,分析了自主信任建立的速度问题。该研究也为开放式网络环境中信任管理的研究提供了一个有价值的新思路。A fuzzy autonomous trust model was used to study the fuzziness of subject trust and the dynamics of trust relationships between various subjects in open network.The fuzziness of trust was described by the membership function based on the fuzzy set theory,and how to create the fuzzy trust model was solved.The network was modeled as an undirected graph G(V,E) based on the graph theory,the rule of trust evaluation is defined by the aid of local information interactions,and trust establishment strategy,the mechanism and the condition of establishing a fully trusted network were studied.The influence of network topology to autonomous trust establishment is discussed through simulation experiment,and the convergence rate of autonomous trust establishment based on the small-world network model(φ-model) was analyzed.The fuzzy autonomous trust model proposed provides a new valuable way for studying the trust management in open network.

关 键 词：自主信任建立 信任模型 信任向量 模糊集合理论 图论 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]