元搜索引擎中的成员选择和结果合并策略研究

Research on strategy of member selection and results integration of meta search engine

近年来,信息检索成为研究热点,搜索引擎成为用户经常使用的服务之一。但是独立搜索引擎的覆盖面狭窄,检索效率低,为了得到比较全面和准确的结果,需要反复调用多个搜索引擎。而元搜索引擎就是一种调用其它独立搜索引擎的引擎,它可以更好的满足用户查询的需求。简述了元搜索引擎的工作原理,分析比较了元搜索引擎的一些技术,并针对元搜索引擎的成员选择和结果合并方面提出了一些实现策略。

In recent years, information retrieval （IR） technology becomes very important in Internet field. Search engine has become one of the most popular network services on Internet. But single search engine couldn＇t extensive use because its limited coverage and low efficiency. Users have to seek help for the other search engine in order to get the more comprehensive, veracious retrieved information. Meta search engine is a search engine which use others single search engine. It can satisfy users＇ requirement better. At f＇trst, the working theory of the meta search engine is introduced simply. And then some technologies of mete search engine are analysed and compared. And some strategy are presented according to single engine selection and results inte^atinn