摘要
为了满足网格系统的异构、动态、开放等特性,提出了一种动态自适应的网格信任模型,在该模型中节点是独立自主的,相对于传统信任模型更加适合在网格环境下运行,系统的节点加入更加自由,降低了节点负担和网络阻塞。并将信任度划分为提供服务和使用服务的两种形式,同时在模型中引入了修正因子和上下文环境对节点进行评估和反馈,避免了恶意节点利用高信誉值进行欺骗行为的发生。模拟实验表明该模型节点交易成功率有了很大的提高。
To satisfy the isomerous, dynamic,open grid system, presents a dynamic self- adaptive trust model. In this model, nodes is independent and self - governed, it is more conformable than conventional trust model ,node is more free and the burden of the node is lowed, -also net jam is alleviative. Trust is divided into two parts： use services and offer services. Also, indroduced correctional gene and context in order to evaluate the nodes in this model. The simulation results demonstrate the model can resist vicious attack better, this can efficiently improve the probability of successful trade - off.
出处
《计算机技术与发展》
2008年第9期151-154,共4页
Computer Technology and Development
基金
国家自然科学基金资助项目(60373063)
