ENGLISH

Statistical Language Models for Information Retrieval - A Critical Review

By Zhai CX.

Book information

Language
english
Format
PDF
Filesize
314 kB (321403 bytes)
Pages
\77
Library
twirpx
Time added
2017-08-07 07:01:42
Информатика и вычислительная техника;Искусственный

Description

Из серии Foundations and Trends in Information Retrieval издательства NOWPress, 2009, -77 pp.Statistical language models have recently been successfully applied to many information retrieval problems. A great deal of recent work has shown that statistical language models not only lead to superior empirical performance, but also facilitate parameter tuning and open up possibilities for modeling nontraditional retrieval problems. In general, statistical language models provide a principled way of modeling various kinds of retrieval problems. The purpose of this survey is to systematically and critically review the existing work in applying statistical language models to information retrieval, summarize their contributions, and point out outstanding challenges.Introduction The Basic Language Modeling Approach Understanding Query Likelihood Scoring Improving the Basic Language Modeling Approach Query Models and Feedback in Language Models Language Models for Special Retrieval Tasks Unifying Different Language Models Summary and Outlook

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