一种基于信任度推荐的P2P-Grid模型  

P2P-Grid reference model based on trust value

作　　者：孙知信[1] 杨熙[1] 宫婧[1] 

机构地区：[1]南京邮电大学计算机学院,南京210003

出　　处：《吉林大学学报（工学版）》2008年第1期127-130,共4页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(60572131);江苏省科技攻关项目(BE2007058);南京邮电大学攀登计划基金项目(NY206008;NY206050);华为科技基金项目

摘　　要：为解决P2P与Grid混合模式下,寻找可信任的服务Peer的问题,设计了一种P2P-Grid环境下基于信任度推荐的P2P-Grid模型。通过自适应的方式构建超级节点,完成对网络的逻辑划分以及推荐信任度的传递,避免了网络瓶颈的出现。网格服务的申请者通过超级节点获得全局信任度,然后计算其最终信任度。将计算任务交予最可信的节点去完成,保证了服务质量。分析及仿真实验说明,该P2P-Grid模型可以简单有效地解决P2P-Grid中的信任问题,具有良好的工程可行性。A P2P-Grid model based on reference of trust value is designed in P2P-Grid environment in order to solve how to find a trustworthy peer provided service in mixed P2P and Grid （P2P＆Grid） pattern. The outcome of neck in network is avoided by constructing super node, partitioning the network logically and transmitting the trust value in adaptive mode. The applicant for grid service gets global trust value referenced form super node and computes final trust value, and then, the most trustworthy peers would complete the computation so as to ensure quality of service. Analysis and simulation experiments show that P2P-Grid model based on trust value is able to solve trust problems in P2P-Grid easily and effectively and this model is of favorable feasibility.

关 键 词：计算机系统结构 网格计算 P2P 信任度 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]