一种可扩展的反馈信任信息聚合算法

李小勇; 桂小林; 赵娟; 冯大鹏

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一种可扩展的反馈信任信息聚合算法

专题研究 | 更新时间：2025-12-08

- 一种可扩展的反馈信任信息聚合算法
- Novel Scalable Aggregation Algorithm of Feedback Trust Information
- 西安交通大学学报 2007年41卷第8期页码：879-883
- 作者机构：
  
  西安交通大学电子与信息工程学院,西安,710049
- 作者简介：
- 基金信息：
  
  : 2007-01-08. 作者简介: 李小勇(1975～),男,博士生;桂小林(联系人),男, 教授,博士生导师. 基金项目:国家自然科学基金资助项目(60273085);国家高技术研究发展计划资助项目(2002AA104310);教育部新世纪优秀人才计划资助项目(NCET-05-0829)
- DOI：
  中图分类号： TP311
- 网络首发：2007-08-10，
  
  纸质出版：2007
- 稿件说明：
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李小勇, 桂小林, 赵娟, 等. 一种可扩展的反馈信任信息聚合算法[J]. 西安交通大学学报, 2007,41(8):879-883.

李小勇, 桂小林, 赵娟, et al. Novel Scalable Aggregation Algorithm of Feedback Trust Information[J]. 2007, 41(8): 879-883.
李小勇, 桂小林, 赵娟, 等. 一种可扩展的反馈信任信息聚合算法[J]. 西安交通大学学报, 2007,41(8):879-883. DOI：

李小勇, 桂小林, 赵娟, et al. Novel Scalable Aggregation Algorithm of Feedback Trust Information[J]. 2007, 41(8): 879-883. DOI：

摘要

针对现有的动态信任聚合算法中利用基于信任链的广播方式进行反馈信任信息搜索而导致的系统运算收敛慢、可扩展性差等问题

建立了直接信任树(DTT)的概念

并基于DTT提出了一种新的可扩展的反馈信任信息聚合算法.根据节点之间的直接信任关系构建DTT

然后利用DTT进行反馈信任信息搜索

同时引入质量因子和距离因子两个参数来自动调节聚合计算的规模.仿真实验表明

算法能够显著提高反馈信任信息聚合计算的收敛性

具有较好的恶意反馈行为检测能力

在恶意节点比率增大时

算法也表现出较强的稳健性.

Abstract

Focusing on the problem that current dynamic trust aggregation algorithms searching for feedback trust information is based on trust chain in broadcast way

leading to slow in convergence and bad in scalability

a new scalable feedback trust information aggregation algorithm is proposed

in which the concept and definition of direct trust tree(DTT)are presented. Based on DTT a novel aggregating algorithm of scalable feedback trust information is proposed

and the DTT is constructed according to node's direct trust relation. Then

the feedback trust information is searched by using DTT instead of in broadcast manner. Two new parameters

quality factor and distance factor

are introduced to adjust the scale of aggregating computation automatically. Simulation results show that the algorithm remarkably enhances the convergence of feedback trust information aggregating computation. Moreover

it has better detecting capability against malicious feedback actions and has stronger robustness when the ratio of malicious nodes is increased.

关键词

Keywords

references

Weeks S. Understanding trust management systems [C]∥2001 IEEE Symposium on Security and Privacy. Los Alamitos, USA: IEEE Computer Society Press, 2001:94-105.

Viljanen L. Lecture notes in computer science:towards an ontology of trust [M]. Berlin: Springer-Verglag Press, 2005: 175-184.

Chang E, Thomson P, Dillon T, et al. Lecture notes in computer science:the fuzzy and dynamic nature of trust [M]. Berlin: Springer-Verglag Press, 2005: 161-174.

李小勇,桂小林. 大规模分布式环境下动态信任模型研究[J]. 软件学报, 2007,18(6): 1510-1521.

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常俊胜,王怀民,尹刚. DyTrust: 一种P2P系统中基于时间帧的动态信任模型[J].计算机学报, 2006, 29(8):1301-1307.

Chang Junsheng, Wang Huaimin, Yin Gang. DyTrust: a time-frame based dynamic trust model for P2P Systems [J]. Chinese Journal of Computers, 2006, 29(8):1301-1307.

Ziegler C N, Lausen G. Spreading activation models for trust propagation [C]∥Proceedings ofIEEE International Conference on e-Technology, e-Commerce, and e-Service. Los Alamitos, USA: IEEE Computer Society Press,2004: 83-97.

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