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近年来国外信息检索的相关性研究进展

Keywords: 信息检索,相关性,国外

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Abstract:

国外的相关性研究至今已有上百年的历史,出现了两个主要的研究流派,即面向系统的相关性研究和面向用户的相关性研究,相关性是动态的、多维的、可认知的和可测度的等观点,已成为学术界的共识。1997年之后的相关性研究在基础研究和实证研究方面都有很大进展。信息检索的相关性研究已经深入到信息检索的各个领域,如模型、算法、聚类、查询扩展与精化、相关性判断等。随着相关性研究的不断深入发展,信息检索系统将会越来越贴近用户的信息需求。图1。表2。参考文献20。

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