对等网络中基于反馈的多维信任模型  

FEEDBACK-BASED MULTIDIMENSIONAL TRUST MODEL IN P2P NETWORKS

作　　者：董西广[1] 李艳[2] 

机构地区：[1]河南工程学院数理科学系,河南郑州451191 [2]河南建筑职业技术学院信息工程系,河南郑州450064

出　　处：《计算机应用与软件》2011年第7期209-211,236,共4页Computer Applications and Software

基　　金：河南工程学院青年基金(Y09059)

摘　　要：针对现有信任模型中信任度刻画单一,用户评价主观性强,对节点推荐能力表征不准确等问题,提出一种基于反馈的多维信任模型MTM。用信任向量来刻画节点信任值,用推荐信任来表征节点的推荐能力,根据交易满意度进行信任反馈,从而以多粒度刻画节点信任属性,减小信任评价的主观性,促使节点在提供良好服务的同时提供公平的推荐。仿真实验表明,MTM能有效提高交易成功率,增加系统可用性。In view of the problems in existing trust models including single credibility depiction,strong subjectivity of consumers＇ evaluation and inaccurate expression of node recommending ability,this paper puts forward a multidimensional trust model（MTM） based on feedback.MTM depicts node credibility with credit vector,expresses node＇s recommending ability with recommending credit,and feeds back information in accordance with business contentment.Thus MTM can depict node credit property with multi-granularity,reduce the subjectivity of credit evaluation,and let nodes provide fair recommendation while providing good services.Emulational experiments show that MTM can effectively improve the success rate of the business and enhance the usability of the system.

关 键 词：对等网络 信任模型 多维 反馈 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]