基于多影响因素的网格信任传播算法  

Trust transitivity algorithm based on multiple influencing factors for grid environment

作　　者：张琳[1,2,3] 王汝传[1,2] 王海艳[1] 

机构地区：[1]南京邮电大学计算机学院,江苏南京210003 [2]江苏省无线传感网高技术研究重点实验室,江苏南京210003 [3]南京邮电大学宽带无线通信与传感网技术教育部重点实验室,江苏南京210003

出　　处：《通信学报》2011年第7期161-168,共8页Journal on Communications

基　　金：国家自然科学基金资助项目(60973139;60773041);江苏省科技支撑计划(工业)资助项目(BE2010197;BE2010198);江苏省级现代服务业发展专项资金;高校科研成果产业化推进工程项目(JH10-14);江苏高校科技创新计划项目(CX10B-196Z);江苏省六大高峰人才项目(2008118);教育部高等学校博士学科点专项科研基金资助项目(20103223120007);南京邮电大学科研基金资助项目(NY209015);江苏高校优势学科建设工程资助项目(yx002001)~~

摘　　要：结合分层思想给出了信任在网格环境下的部署方案,降低了系统的管理成本。基于交互能力和诚实能力提出了细粒度描述的信任模型,增强了模型的合理性,同时探讨了影响信任传播的4种因素,包括循环路径、路径长度限值、节点诚实限值以及进一步信任信息,并在此基础上设计了基于深度遍历的网格信任传播算法。实例和仿真结果表明了模型和算法的可行性和正确性。A trust deployment scheme based on layered idea was given for grid environment,which reduced the man-agement costs of system.The fine-grain trust model was proposed which was based on interaction capability and honesty ability.It enhanced the rationality of the model.At the same time,4 influencing factors about trust transitivity were dis-cussed,such as cycle path,path length threshold,node honesty threshold and further trust information.On this condition,the trust transitivity algorithm for grid was studied which was based on depth-first traversal.Example and experimental results show that the model and algorithm are feasible and correct.

关 键 词：网格 信任模型 信任传播 细粒度 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]