A Recommendation-based Reputation Evaluating Model Using Virtual Verifying and Time Decaying for P2P Networks

摘要：

As a recommender in the reputation systems can submit inaccurate recommendations for a variety of reasons, the trustworthiness degree of recommending (TDR) must be critically assessed. In this article, two mechanisms, I.e. the virtual verifying and time decaying, are introduced to help calculating TDR. The former is aimed to solve the accuracy and efficiency problem caused by insufficient evidences of recommending when calculating. The latter focuses on detecting the oscillation of recommenders behaviors, and time-decaying-rate factor and time-decaying-frequency factor are involved to make the recent evidences be more important to the calculating. Experimental results show that our model has better performance and is robust even with large amount of malicious peers.

关键词： trustworthiness of recommendation time decaying virtual verijying reputation

作者: BAO Yi-ping FENG Xiao-Sheng ZHANG Wei-Ming

作者单位: C4ISR Technology National Defense Key Lab National University of Defense Technology Changsha, China

会议类型: 国际会议

会议名称: The 2010 International Conference on Computer Application and System Modeling(2010计算机应用与系统建模国际会议 ICCASM 2010)

会议地点: 太原

会议语种:英文

页码: 351-356

在线出版日期: 2010-10-22（万方平台首次上网日期，不代表论文的发表时间）