| 基于隶属函数的改进Grid_P2P资源检索算法的研究 |
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| 引用本文： | 刘洺辛,李静,金涛.基于隶属函数的改进Grid_P2P资源检索算法的研究[J].东北重型机械学院学报,2012(4):339-342,347. |
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| 作者姓名： | 刘洺辛 李静 金涛 |
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| 作者单位： | [1]燕山大学信息科学与工程学院,河北秦皇岛066004 [2]燕山大学机械工程学院,河北秦皇岛066004 |
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| 基金项目： | 河北省自然科学基金资助项目（F2011203092,F2011203067） |
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| 摘 要： | 为了提高P2P网络的资源搜索效率和管理效率,提出了一种改进的Grid_P2P网络结构,并以此结构为基础提出了基于隶属函数的资源搜索算法GPMA。在改进的Grid_P2P结构中,通过增加MP层对超级节点的管理,减少了网络的通信延迟;在GPMA算法的实现过程中,利用隶属函数的隶属度来组织节点的加入和路由信息的更新,减少了资源搜索的跳数并提高了资源搜索的效率。通过对仿真结果中的数据进行分析和比较,验证了搜索算法GPMA的优势。
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| 关 键 词： | 隶属函数 资源搜索 Grid_P2P 超级节点 缓存机制 |
Research on improved grid_P2P resource retrieval algorithm based on membership function |
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| Affiliation: | LIU Ming-xin, LI Jing, J1N Tao(1. College of Information Science and Enginerring, Yanshan University, Qinhuangdao, Hebei 066004, China; 2. College of Mechanical Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China) |
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| Abstract: | To improve the resource retrieval ratio and management ratio of P2P network, an improved grid_P2P structure and re- source retrieval algorithm GPMA （Grid_P2P resource retrieval based on Membership function Algorithm） is proposed. In improved Grid_P2P structure, MP （management peer） is added to manage super node and reduce communication delay. In the process of GPMA algorithm, the node is organized and router informiation is updated by the membership degrees to reduce the hops and im- prove the resource retrieved efficiency. Finally, the simulation results show that GPMA algorithm is superior in solving such kind of issues by comparing and analyzing the data. |
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| Keywords: | membership function resource retrieval grid__P2P super-peer cache mechanism |
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