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

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

CLC Number: 

• TP312