P2P网络中考虑交易时间间隔的信任管理模型  

A Trust Management Model in P2P Network Considering the Transaction Interval of Time Transaction Interval of Time

作　　者：吕上[1] 郭玉翠[1] 左赛哲[1] 

机构地区：[1]北京邮电大学理学院,北京100876

出　　处：《软件》2011年第5期41-44,共4页Software

基　　金：国家自然科学基金资助项目(60973146);山东省自然科学基金项目(ZR2009GM036)~~

摘　　要：针对P2P网络中交易的信任度量和推荐链问题,提出一个考虑交易时间间隔的信任管理模型。模型在基于声誉的信任管理模型的基础上对信任度的度量给出了一种以时间间隔为主要因子的计算方法,同时在推荐链的筛选方面采用变进制数作为权重值。理论分析表明,该模型能够对P2P网络中不良行为起到很好的遏制作用,也体现了交易的时效性,可以用来提高信任度量的准确性和动态适应能力。In order to deal with the problem of trust measurement and the recommendation chain linking issue in P2P network,a model trust-based on the reputation management and considering the transaction time interval of a trust management is proposed.The given interval of time as main calculated factor is considered in the model,meanwhile the screening in the recommended chain with change decimal as a decimal weight values.Theoretical analysis shows that this model able to play a role in restraining bad behavior,at the same time it reflects the timeliness and it is effectual to improve the accuracy of trust metrics and dynamic adaptability.

关 键 词：P2P网络 信任管理 推荐链 时间间隔 变进制数 

分 类 号：TP309.2[自动化与计算机技术—计算机系统结构]