P2P网络中基于云模型的主观信任评价  

Subjective Trust Evaluation Based on Cloud Model Theory for P2P Network

作　　者：张景安[1] 张杰[1,2] 王秀义[1] 

机构地区：[1]山西大同大学数学与计算机科学学院,山西大同037009 [2]内蒙古师范大学传媒学院,内蒙古呼和浩特010022

出　　处：《微电子学与计算机》2010年第8期96-99,共4页Microelectronics & Computer

基　　金：内蒙古师范大学研究生科研创新基金项目(CXJJS09053);山西大同大学科研基金资助项目(201001)

摘　　要：为了解决P2P网络交互的安全性问题,模拟人际交互网络,提出了基于云模型理论的主观信任评价模型.通过信任云及信任等级基准云的定义,实现了主观信任定性与定量的统一,客观地反映了信任的模糊性与随机性.通过逆向信任云算法、信任云合并算法及信任云相似度计算算法,实现了主观信任的综合评价和决策.仿真实验分析表明本方法是有效的和合理的.为开放式网络环境中的信任评估研究提供了一个有价值的新思路.To solve the problem of the transaction security in P2P network, by simulating interpersonal interactive process in society network, a subjective trust model is proposed base on cloud model theory. The created definition of the trust cloud and the standard cloud in the evaluation model shows the ambiguity and randomicity of the trust and realizes transferring quantitative data to qualitative data. Based on algorithm of converse trust cloud and trust merging and similarity, comprehensive evaluation and decision-making of subjective trust is realized. The results of experiments show that the trust evaluation model is valid. The model proposed in this paper provides a new way for studying trust management in open networks.

关 键 词：对等网 云模型 主观信任 信任云 信任决策 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]