基于Bittorrent网络的快速搜索策略  

Fast Search Method Based on Bittorrent Network

作　　者：丁林[1] 程学旗[1] 刘悦[1] 吕建明[1] 

机构地区：[1]中国科学院计算技术研究所,北京100080

出　　处：《计算机工程》2007年第3期111-113,共3页Computer Engineering

基　　金：国家"973"计划基金资助项目(2004CB318109)

摘　　要：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.

关 键 词：对等网络 信息检索 BITTORRENT 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]