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信息时代人们能够使用和开采的信息量极其巨大,信息更新速度不断加快。互联网作为一个巨量、开放的信息库,其信息量一直呈几何级数式速度增长。面对如此纷繁的信息,如何剔除无用的信息,提取有用的知识是一个非常现实的问题。20世纪90年代中期搜索引擎的诞生,为人们寻求网上信息资源提供了方便,随着网络应用的深入,网络信息检索技术应该向着更加智能化方向发展。
The amount of information people are able to use and exploit in the information age is extremely large, and information updates are accelerating. As a vast and open information repository, the amount of information in the Internet has been increasing geometrically. In the face of so many kinds of information, how to eliminate useless information and extract useful knowledge is a very real problem. The birth of search engine in the mid-1990s provided convenience for people seeking online information resources. With the deepening of network application, the technology of network information retrieval should be more intelligent.