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计算机工程 ›› 2008, Vol. 34 ›› Issue (20): 127-128. doi: 10.3969/j.issn.1000-3428.2008.20.046

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P2P网络中基于语义和信任的资源发现算法

孙丽丽,欧阳松   

  1. (中南大学信息科学与工程学院,长沙 410083)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-10-20 发布日期:2008-10-20

Resource Discovery Algorithm Based on Semantics and Trust in P2P Network

SUN Li-li, OUYANG Song   

  1. (School of Computer Science and Engineering, Central South University, Changsha 410083)
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-10-20 Published:2008-10-20

摘要: P2P对于分布式文件共享具有很好的前景,但当前的P2P系统仍然缺乏有效的信息管理机制。该文在构建超级节点叠加网络时考虑信任和语义的因素,语义相似的节点尽量分布在同一个域中。在选取超级节点时考虑信任值、节点能力及动态性等因素,提出一种高效的基于语义和信任机制的P2P资源发现算法。

关键词: P2P网络, 语义, 信任, 超级节点

Abstract: P2P systems are emergent and promising technique for resource sharing in distributed environment, but they lack information management mechanism. This paper presents a super-peer overlay network, which combines semantics and trusts, and the nodes which have the similar semantics are distributed in the same domain. When selecting the super-nodes, it combines the trusts, capacity and dynamics. An efficient P2P resource discovery algorithm based on semantics and trust is put forward.

Key words: P2P network, semantics, trust, super-node

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