Probabilistic structured query methods

Kareem Darwish, Douglas W. Oard
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引用次数: 128

Abstract

Structured methods for query term replacement rely on separate estimates of term tes of replacement probabilities. Statistically significantfrequency and document frequency to compute a weight for each query term. This paper reviews prior work on structured query techniques and introduces three new variants that leverage estima improvements in retrieval effectiveness are demonstrated for cross-language retrieval and for retrieval based on optical character recognition when replacement probabilities are used to estimate both term frequency and document frequency.
概率结构化查询方法
查询项替换的结构化方法依赖于对替换概率的项值的单独估计。统计显著频率和文档频率来计算每个查询词的权重。本文回顾了之前在结构化查询技术方面的工作,并介绍了三种新的变体,这些变体利用了跨语言检索和基于光学字符识别的检索的估计改进,当使用替换概率来估计词频和文档频率时。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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