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摘要 互联网中的资源非常丰富,而且每天都以指数级的速度增长,但是如何有效的寻找信息却是一件困难的事情。搜索引擎的出现帮我们解决了这个问题。它就像整个网络资源的接口,网络用户可以通过它找到自己想要去的网页。但是,信息越来越多样化,而通用的搜索引擎往往讲究高覆盖率,查询时往往会产生很多不相干的网页。也就是说它的查准率比较低。这种泛化的搜索已经不能满足特定的用户需要更精确信息查询的需求。
作者 吴妮
出处 《计算机光盘软件与应用》 2012年第7期93-93,87,共2页 Computer CD Software and Application
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