基于Bittorrent网络的快速搜索策略

Fast Search Method Based on Bittorrent Network

非结构化P2P网络在大规模网络环境下的资源共享方面具有优越性,针对这些网络的快速资源定位是一个关键问题。Bittorrent是一个简单、高效的P2P文件共享系统,但是该系统只解决了如何高效地下载资源,而没有解决如何高效地搜索资源。该文针对目前BitTorrent网络中资源获取方式存在的不足之处,提出了一种基于BitTorrent P2P网络的快速搜索策略——Incentive Hop Search,并建立模拟程序,对检索的性能与效果做了初步的验证。实验结果表明了该方法的有效性。

Unstructured P2P networks are more scalable and more effective than centralized networks. How to locate resource rapidly and effectively in unstructured P2P networks becomes a key issue. Bittorrent is a simple, effective P2P file sharing system, but it only solves how to download effectively while how to locate resource is still unsolved. This paper presents a P2P distributed search method（IHS） based on bittorrent P2P network in order to improve its search ability. It implements a simulation program and tests the performance of the system. Experimental results show that IHS is an effective method with high recall rate and low resource usage.