个人信息Personal Information
副教授
硕士生导师
性别:男
毕业院校:大连工学院
学位:硕士
所在单位:计算机科学与技术学院
电子邮箱:xfmeng@dlut.edu.cn
preferTrust: An ordered preferences-based trust model in peer-to-peer networks
点击次数:
论文类型:期刊论文
发表时间:2016-03-01
发表刊物:JOURNAL OF SYSTEMS AND SOFTWARE
收录刊物:SCIE、EI
卷号:113
页面范围:309-323
ISSN号:0164-1212
关键字:P2P network; Expectation vector; Trust vector
摘要:Aiming at solving the two problems in existing trust models, rough trust description and simplistic trust decision, an ordered preferences-based trust model, preferTrust, is proposed for peer-to-peer networks. First, we define a service as an n-dimensional attribute vector in order to reflect the service provider's abilities in different attributes in detail. Second, considering the fact that different peers may have different preferences for each attribute of a service, which are usually represented in the qualitative expressions, such as better, worse and so on, we transform those peer's qualitative preferences to the quantitative ordered preferences with the method of analytical hierarchy process (AHP), and based on which to calculate the requester's expectation vector. Finally, we combine the requester's expectation vector with each responder's trust vector to calculate an estimate value for each responder which will help the requester make the final trust decision. The simulation results show that preferTrust is able to both improve the trust decision satisfaction and resist malicious attacks effectively and efficiently. (C) 2015 Elsevier Inc. All rights reserved.