摘要
P2P技术是近年学术界和工业界关注的焦点。BitTorrent(以下简称BT)作为一个P2P文件共享系统,用户量不断增长,已逐渐成为网络带宽的主要消耗者之一。BT用户必须到各个发布站点上查找种子文件,致使用户查询的效率比较低。为此,论文提出了基于对等网络的针对BT关键词检索系统Clair,该系统能够高效采集网页上存在的“元信息”文件,快速索引文本以及索引的均匀切分,同时通过针对性的相关性排序算法,给予用户较好的查询结果。实验结果表明,Clair系统具有较好的综合性能。
Peer-to-Peer technology has become a hot area in both research and industry field.BitTorrent（short for BT） is a P2P file sharing system.Its users increase greatly,making it as one of the main Internet bandwidth killers.However,the user of BT must surf on the publish sites to find the files and it results in low efficiency.For this purpose,the article proposes the keyword search system for BT over P2P Clair.This system can get the meta information file on the websites with high efficiency,index text quickly,partition the index uniformly and give the users good search results through special relevancy ranking algorithm.Experiments show that Clair has many advantages.
出处
《计算机工程与应用》
CSCD
北大核心
2006年第18期139-142,212,共5页
Computer Engineering and Applications
基金
国家自然科学基金资助项目(编号:60373004
60373005
90412006
90412011
60573110
90612016)
国家973基础研究规划资助项目(编号:2004CB318000
2003CB316907)
