搜索引擎技术及研究

网络信息的大量增加 ,用户要在如此浩瀚的信息海洋里寻找所需信息 ,就象大海捞针 ,无从下手 ,搜索引擎 (SearchEngine)正是为了解决这个“迷航”问题而出现的技术。本文从目录式搜索引擎、机器人搜索引擎、元搜索引擎等进行了区分 ,并对搜索引擎的组成即信息采集器 (Spider或Crawler)、索引数据库 (Indexdatabase)和检索索引库的检索软件 (Searchenginesoftware)和用户接口四部分的工作机理进行了探讨。同时对搜索引擎的检索技巧即 :布尔逻辑检索、字符串 (短语 )检索、截词检索、限制检索、搜索引擎的特殊检索功能及智能代理的信息过滤和个性化服务、提高信息检索结果的精度 ,有效性、采用分布式体系结构提高系统规模和性能、重视交叉语言检索的研究和开发等发展趋势等进行了探讨。

Network information a lot of increasing,user in information ocean search information,as salvage needle in ocean.Search engine tum up technology for solved bewilder voyage.The article is exploring from catalog search engine,robot,unit search engine.Toward search engine make up machinery principle of Spider or Crawler,Index database,Search engine software and user connect.At the same time,toward searching skill of search engine search,as Bull logic search,character bunch search,cut off words search,limit search,peculiarity function of search engine and sieve or personality served of brain agency,raised quintessence of information search result,availability.Adoption distribution system structure,raised system procept model and capability.Take into account entwine language search sdudy and develop,development carrent is probing.