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Query Expansion by Local Context Analysis

Ermakova, Liana and Mothe, Josiane Query Expansion by Local Context Analysis. (2016) In: Conference francophone en Recherche d'Information et Applications (CORIA 2016), 9 March 2016 - 11 March 2016 (Toulouse, France).

(Document in English)

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Official URL: http://asso-aria.org/coria/2016/CORIA/13.pdf


Query expansion (QE) aims at improving information retrieval (IR) effectiveness by enhancing the query formulation. Because users' queries are generally short and because of the language ambiguity, some information needs are difficult to answer. Query reformulation and QE methods have been developed to face this issue. Relevance feedback (RF) is one of the most popular QE techniques. In its manual version, the system uses the information on the relevance -manually judged- of retrieved documents in order to expand the initial query. Rather than using users' judgment on the document relevance, blind RF considers the first retrieved documents as relevant. Generally speaking, RF methods consider the terms that cooccur with query terms within positive feedback documents as candidates for the expansion. Rather than considering feedback documents in their all, it is possible to analyze local information. This paper presents a new method that uses local context from feedback documents for QE. The method uses POS information as well as the remoteness from query terms within feedback documents. We show that the method significantly improves precision on TREC collections.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to Association francophone de Recherche d'Information et Applications (ARIA). The definitive version is available at: http://www.asso-aria.org/lp/2016/sdnri.2016.html The original PDF of the article can be found at : http://asso-aria.org/coria/2016/CORIA/13.pdf
HAL Id:hal-01535941
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Other partners > Perm state university (RUSSIA)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
Laboratory name:
Deposited On:30 May 2017 13:17

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