一种基于信任矩阵的P2P电子商务信任算法  

A P2P E-commerce Trust Algorithm Based on Trust Matrix

作　　者：张辉[1] 张蓓蓓[1] 

机构地区：[1]陕西省灾害监测与机理模拟重点实验室/宝鸡文理学院,陕西宝鸡721013

出　　处：《网络新媒体技术》2017年第4期39-44,共6页Network New Media Technology

基　　金：国家自然科学基金项目"氮磷配施对小麦水分利用效率影响的机理研究"(41601016);宝鸡市科技计划项目"宝鸡市旱作冬小麦水分利用特征差异及抗旱性研究"(16RKX1-14);宝鸡文理学院硕士科研启动项目"P2P电子商务信任机制研究"(ZK2017070)

摘　　要：P2P电子商务信任系统中节点具有随机性和匿名性的特点,欺诈节点会通过恶意攻击破坏信任系统的有效性,通过合理的设置信任算法可以惩罚欺诈节点的恶意行为。为了解决这些问题,采用了一种基于信任矩阵的信任算法。在该信任机制中,将节点间的信任关系转化为信任矩阵,通过计算信任矩阵的亲密度衡量不同节点对同一节点历史信任关系的可信任程度。在计算信任值的过程中加入信任修正函数和欺诈惩罚因子,增强了信任机制的抵抗欺诈节点攻击的能力。The P2P e -commerce trust system had the characteristics of randomness and anonymity. The fraud node would destroy the validity of the trust system through malicious attacks. By setting up logical trust algorithm, the behavior of the cheating in fraud node could be punished. In order to solve these problems, a trust algorithm based on trust matrix was presented in this paper. In this trust mechanism, the trust relationships between nodes were transformed into trust matrix, and through calculating the closeness of the trust matrix to measure the trust degree relationship between different nodes on the same node. In the process of computing trust value, the trust correction function and fraud penalty factor were added to enhance the ability of trust mechanism to resist the attack of fraudulent nodes.

关 键 词：信任矩阵 零度信任 多度信任 

分 类 号：F724.6[经济管理—产业经济] F832.4[自动化与计算机技术—计算机系统结构] TP301.6[自动化与计算机技术—计算机科学与技术]