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引用本文:张颖,周志农.?????????????????????о?[J].图书情报工作,1999,43(10):39-42,58.
作者姓名:张颖  周志农
作者单位:??????????????? 510275
摘    要:以较充分的实例比较因特网三大检索工具在收录范围,侧重面及检索功能方面的差异,提出一种在实际工作中将三大类检索工具优化运用的检索策略。

关 键 词:SubjectDirectory  SearchEngine  MegaSearchEngine  Internet  

A Comparative Study on Three Major Internet Search Tools
ZHANG Ying,Zhou Zhinong.A Comparative Study on Three Major Internet Search Tools[J].Library and Information Service,1999,43(10):39-42,58.
Authors:ZHANG Ying  Zhou Zhinong
Institution:Zhongshan University Library, Guangzhou
Abstract:??Presently,the Internet search tools can be catagorized to Subject Directory, Search Engine and MegaSearch Engine.On the basis of comparision of coverages, characteristics and search features of lots of different powerful tools, this article concludes some practical and optimized search strategies of combining Subject Directory, Search Engine and MegaSearch Engine
Keywords:Subject Directory Search Engine MegaSearch Engine Internet
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