P2P网络中基于语义和信任的资源发现算法  

Resource Discovery Algorithm Based on Semantics and Trust in P2P Network

作　　者：孙丽丽[1] 欧阳松[1] 

机构地区：[1]中南大学信息科学与工程学院,长沙410083

出　　处：《计算机工程》2008年第20期127-129,共3页Computer Engineering

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。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.

关 键 词：P2P网络 语义 信任 超级节点 

分 类 号：TP312[自动化与计算机技术—计算机软件与理论]