基于模糊集的P2P全局信任模型  

P2P global trust model based on fuzzy set

作　　者：卢会芳[1] 刘万军[1] 

机构地区：[1]辽宁工程技术大学电子与信息工程学院,辽宁葫芦岛125105

出　　处：《计算机工程与设计》2011年第8期2608-2610,2618,共4页Computer Engineering and Design

摘　　要：为了解决传统的集中式信任机制不适合P2P网络的问题,提出了一种应用于P2P网络的分布式信任模型FAHPA。该模型利用模糊集合理论,结合层次分析法、贴近度等知识,同时考虑到激励机制,构造了一个完整的主观信任模型。仿真实验结果表明,该模型不仅能够抵御冒名和诋毁等非法行为,而且能够抑制搭便车现象,可以极大地提高整个系统的工作效率,实现了负载平衡。To solve the problem that the traditional centralized trust mechanism is not suitable for P2P networks, a distributed trust model （FAHPA） is proposed, which is applied to P2P networks. The model utilizes the fuzzy set theory, combines the knowledge of analytic hierarchy preeess, approach degree, at the same time considers the incentive mechanism, and constructs a complete subjective trust model. The simulation experiment shows that this model can not only resist the illegal behaviors, such as imposter attack and Slander, but also restrain the phenomenon of free-riding, and the working efficiency of the whole system is greatly improved and the load balance is realized.

关 键 词：模糊理论 层次分析法 贴近度 贡献值 信任值 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]