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Using lexico-semantic information for query expansion in passage retrieval for question answering

Authors:

Lonneke van der Plas,

Jörg TiedemannAuthors Info & Claims

IRQA '08: Coling 2008: Proceedings of the 2nd workshop on Information Retrieval for Question Answering

Pages 50 - 57

Published: 24 August 2008 Publication History

Abstract

In this paper we investigate the use of several types of lexico-semantic information for query expansion in the passage retrieval component of our QA system. We have used four corpus-based methods to acquire semantically related words, and we have used one hand-built resource. We evaluate our techniques on the Dutch CLEF QA track. In our experiments expansions that try to bridge the terminological gap between question and document collection do not result in any improvements. However, expansions bridging the knowledge gap show modest improvements.

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Cited By

Clark MKim YKruschwitz USong DAlbakour DDignum SBeresi UFasli MDe Roeck A(2019)Automatically structuring domain knowledge from textInformation Processing and Management: an International Journal10.1016/j.ipm.2011.07.00248:3(552-568)Online publication date: 9-Dec-2019
https://dl.acm.org/doi/10.1016/j.ipm.2011.07.002

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Using lexico-semantic information for query expansion in passage retrieval for question answering

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Published In

cover image DL Hosted proceedings

IRQA '08: Coling 2008: Proceedings of the 2nd workshop on Information Retrieval for Question Answering

August 2008

91 pages

ISBN:9781905593552

Program Chair:
Mark A. Greenwood
Univeristy of Sheffield

Publisher

Association for Computational Linguistics

United States

Publication History

Published: 24 August 2008

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Cited By

Clark MKim YKruschwitz USong DAlbakour DDignum SBeresi UFasli MDe Roeck A(2019)Automatically structuring domain knowledge from textInformation Processing and Management: an International Journal10.1016/j.ipm.2011.07.00248:3(552-568)Online publication date: 9-Dec-2019
https://dl.acm.org/doi/10.1016/j.ipm.2011.07.002

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