| 混合型P2P网络中的基于Gossip的动态自适应算法 |
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| 引用本文： | 张纯容,王忠,周庆标,施晓秋. 混合型P2P网络中的基于Gossip的动态自适应算法[J]. 电子科技大学学报(社会科学版), 2008, 0(5) |
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| 作者姓名： | 张纯容 王忠 周庆标 施晓秋 |
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| 作者单位： | 温州大学城市学院; |
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| 基金项目： | 国家自然科学基金(60573140) |
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| 摘 要： | 为了提高搜索的性能,出现了混合P2P网络搜索方法。在混合P2P网络中,关键的问题在于确定资源的流行程度。针对该问题,该文提出了一种基于Gossip的动态自适应算法(DAHG),通过抛硬币操作估计节点加入和离开P2P网络时所带入和带走的文档副本数;并通过Gossips传递估计值,获得资源的流行程度。仿真结果表明,该算法具有良好的适应性,能够反映P2P网络中节点和资源的动态性,从而选择出正确的资源搜索方法,减少搜索响应时间和提高资源的命中率。
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| 关 键 词： | 分布式哈希表 基于Gossip的动态自适应算法 泛洪 混和P2P网络 |
Gossip-Based Dynamical Adaptive Search Selection in Hybrid Peer-to-Peer Networks |
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| ZHANG Chun-rong,WANG Zhong,ZHOU Qing-biao,, SHI Xiao-qiu. Gossip-Based Dynamical Adaptive Search Selection in Hybrid Peer-to-Peer Networks[J]. Journal of University of Electronic Science and Technology of China(Social Sciences Edition), 2008, 0(5) |
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| Authors: | ZHANG Chun-rong WANG Zhong ZHOU Qing-biao SHI Xiao-qiu |
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| Affiliation: | ZHANG Chun-rong,WANG Zhong,ZHOU Qing-biao,, SHI Xiao-qiu (City College,Wenzhou University Wenzhou Zhejiang 325035) |
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| Abstract: | In hybrid Peer-to-Peer (P2P) networks,the decision of whether to use flooding or DHT depends mainly on the popularity of desired data. Previous work either used only local information,or do not consider the dynamic factors of P2P systems. In this paper,an improved algorithm called dynamic adaptive hybrid based on Gossip (DAHG) is presented. In DAHG,a P2P ultrapeer tosses a coin when an end node joins or leaves the P2P networks,and uses a gossip-style algorithm to collect global statistics about document pop... |
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| Keywords: | distributed Hash tables dynamic adaptive hybrid based on Gossip flooding hybrid peer-to-peer network |
| 本文献已被 CNKI 等数据库收录！ |
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