一种改进的基于向量的P2P电子商务信任模型

在交易之前通过信任模型帮助交易对象之间建立信任关系，是P2P电子商务发展的必要条件，也是近年来的研究热点。本文针对现有模型的不足，在基于投票协议的P2P电子商务安全信任模型的基础上，引入了向量表示信任，并且在权限的确定、信任的表述和信任的评估等多方面做了改进。经过模拟实验和分析证明，改进后的模型不仅可以让用户根据各自的不同要求对交易对象做出更合理的信任评估，而且能快速识别和隔离恶意节点，从而降低了交易风险。

Improved Vector-based Trust Model for P2P E-Commerce

It is necessary for the P2P e-commerce to build up trust between two sides of business before transactions by trust model,which has been a hotpot recently.To improve the existent models and on the basic of polling protocol-based trust model,this paper uses vector to express trust,and takes some amelioration on privilege,expression of trust and evaluating trust.The result of simulative experiment shows that in the improved trust model a peer can not only evaluate other peers rationally according his various ...