一种能力属性增强的Web服务信任评估模型

Web服务环境的开放性、欺骗性和不确定性等特征,导致服务交易双方风险增大,因而构建有效的信任管理机制是降低交易双方风险的至关重要的因素.但是,当前基于安全凭证和反馈信息的信任评估方法均存在缺陷,因而,作者参考社会学的信任模型,利用量化主体能力属性提升信任评估的准确度.在此基础上,设计了Web服务信任评估模型(ServTrust),且提出了ServTrust的一种基于多代理器的解决策略.仿真实验结果表明:该方法与基于反馈信息的方法相比能有效地改善信任评估的准确度.

A Capability Enhanced Trust Evaluation Model for Web Services

In open environment, an effective trust mechanism should be built to ensure transaction safety. But current trust evaluation approaches solely based on the certificate or feedback are inaccurate and ineffective. Thus, referring to the social trust models, this paper presents a capability enhanced method to improve the accuracy of evaluating trustworthiness. Based on it, this paper also designs a trust evaluation model ServTrust that naturally provides a solution to the trust problem. Compared with current feedback based approaches, simulation experimental results show the effectiveness of the proposed model in trust evaluating.