一种基于用户行为的P2P防污染机制的研究  

Research of P2P Anti- pollution Mechanism Based on User Behavior

作　　者：许灿[1] 刘玉兰[1] 阮群锟[1] 

机构地区：[1]湖南大学计算机与通信学院,湖南长沙410082

出　　处：《电脑与信息技术》2009年第5期63-66,共4页Computer and Information Technology

摘　　要：文件污染是当前P2P文件共享系统普遍存在的问题,其中用户行为是导致污染的重要因素。文章在考察用户行为的基础上,建立了一个污染文件传播模型,描述了用户的污染意识、删除污染文件的速度以及共享倾向等因素对污染传播的影响,并据此提出了相应的反污染机制。仿真实验表明,该机制能够有效地控制P2P文件共享系统中污染文件的传播。The problem of file pollution is prevalent in P2P file sharing system nowadays,and user behavior is the important factor which leads to pollution.In this paper,based on studying user behabior,we build a pollution file propagation model, which describes user behavior＇s impact on pollution propagation such as awereness of pollution,speed of deleteing pollution file and trend of sharing ,and then we propose corresponding anti-pollution mechanisms.Simulation results show that this mechanism can thwart proliferation of pollution in the network effectively.

关 键 词：P2P 文件共享 文件污染 传播模型 反污染 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]