A Time-Related Trust Model Based on Subjective Logic Theory

摘要：

Traditional subjective logic provides a specific belief calculus that uses opinion to express beliefs, but it does not support the time property. In the heterogeneous, dynamic, and open networks such as the Internet, we propose a time-related trust model based on subjective logic theory. The proposed model consists of two additional factors compared with the traditional one: a time-related attenuation factor that is defined to improve evidence mapping function, and a time-related weight factor that is defined to calculate trust using both direct trust and indirect trust. Simulation studies show that the proposed model has greater improvement on restraining malicious entities from increasing their trust by spurious behaviors than traditional subjective logic trust model.

关键词： Time-related subjective logic attenuation factor weight factor.

作者: Yueming Deng Guojun Wang

作者单位: School of Information Science and Engineering, Central South University, Changsha 410083, China;Scho School of Information Science and Engineering, Central South University, Changsha 410083, China

会议类型: 国际会议

会议名称: The 9th International Conference for Young Computer Scientists(第九届国际青年计算机大会)

会议地点: 安徽黄山

会议语种:英文

页码: 1902-1907

在线出版日期: 2008-11-18（万方平台首次上网日期，不代表论文的发表时间）