多属性动态信任关系量化模型研究  

Research on multi-attributes quantization model of dynamic trust relationship

作　　者：李小勇[1] 张少刚[1] 

机构地区：[1]天水师范学院计算机科学系,甘肃天水741000

出　　处：《计算机应用》2008年第4期884-887,共4页journal of Computer Applications

基　　金：甘肃省教育厅自然科学基金项目(0508-10);天水师范学院计划资助项目(TSB0512)

摘　　要：针对已有动态信任关系量化模型中由于决策属性的粗糙而导致的可信决策的谬误问题,提出了一个新的多属性动态信任关系量化模型。引入直接信任、风险、历史信任和反馈信任等多个决策属性来量化实体之间的动态信任关系,从多个角度更精细地刻画信任的复杂性和不确定性,从而使该模型具有更好的科学性和更高的实际应用价值。模拟实验表明,与已有模型相比,该可信决策的准确性和动态适应能力得到显著提高。Focusing on the problem that current dynamic trust models using simple decision attributes compute trust degree between peers leads to failure outcome of trust decision, a novel dynamic trust quantization model was proposed. Multiple decision attributes were incorporated to reflect trust relationship＇s complexity and uncertainty in various angles, which made the model have a better rationality and a higher practicability. Simulation results show that, compared to the existing trust models, this model has remarkable enhancements in the accuracy of trust decision and dynamic adaptability.

关 键 词：分布式处理系统 信息安全 动态信任模型 

分 类 号：TP182[自动化与计算机技术—控制理论与控制工程] TP393.08[自动化与计算机技术—控制科学与工程]