对等网络中信任感知的资源交易模型  

Trust-aware resource transaction model in P2P networks

作　　者：刘晓茜[1] 杨寿保[1] 申凯[1] 郭磊涛[1] 

机构地区：[1]中国科学技术大学计算机科学与技术系,安徽合肥230026

出　　处：《华中科技大学学报（自然科学版）》2007年第S2期153-156,共4页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(60273041;60673172);国家高技术研究发展计划资助项目(2002AA104560;2006AA01A110)

摘　　要：提出一种市场机制和信任机制相结合的信任感知的资源交易模型,即Tart模型.该模型采用自由市场模型,节点可以自由出售自己的资源,也可以购买所需的资源.卖方节点根据自己的策略自由对资源进行定价.买方节点根据可信度和价格选择合适的卖方,通过付费实现与卖方的交易.在Tart模型中引入信任机制,在充分发挥市场调节作用的同时,把信任度作为衡量节点交易诚信度的重要指标,激励节点履行已达成的资源交易合约.基于已有的工作,在Tart节点模型中增加了信任评估模块以及信任相关的拓扑构建模块与资源选择模块,详细描述了各个模块的功能及交互关系,并提出了下一步的研究方向.A trust-aware resource transaction model,abbreviated to Tart model,which combines with the market mechanism and the trust mechanism was proposed.Tart model adopts free market model,in which peers could sell self resources freely and also buy their needed resources.Basing on their tactics,bargainor peers set a price to their resource freely.According to reliability and price,buyer peers choose a suitable seller and carry out a transaction with it by paying a fee.Trust mechanism is introduced into Tart model.Trust is an important metrication in measuring the reputation of peers in the market transactions,which can not only bring market's control response into play,but also stimulate peers to obey the transaction contract.So basing on existing tasks,we add trust evaluating model,topology constructing model and resource choosing model correlating to trust into Tart model,describe each model's function and alternating relations in detail,and propose the next research details.

关 键 词：对等网络 信任感知 市场机制 资源交易 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]