Abstract: Having studied the advantages and disadvantages of some traditional searching methods in structured and unstructured P2P networks, an assisted interest-based searching method was proposed to enhance the search in unstructured P2P overlay networks by registering interests of nodes in structured P2P overlay networks. Experimental results show that this method achieves good performance in success rate and search latency.

Key words: P2P networks, distributed file sharing, search overhead, search time

摘要： 分析了传统的结构化P2P网络和非结构化P2P网络搜索方法的优点和缺点，提出了一种基于兴趣协助的搜索方法，通过在结构化P2P网络节点上发布兴趣来加速非结构化P2P网络上的查询。实验结果表明,此方法在查询成功率和搜索延迟等方面都有着较好的性能。

关键词: P2P网络, 分布式文件共享, 搜索负载, 搜索时间