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      Using Genetic Algorithms for Query Reformulation

      BCS IRSG Symposium: Future Directions in Information Access 2007 (FDIA)

      Future Directions in Information Access

      28-29 August 2007

      Genetic algorithm, information retrieval, query reformulation

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          Abstract

          Nowadays, searching information in the web or in any kind of document collection has become one of the most frequent activities. However, user queries can be formulated in a way that hinders the recovery of the requested information. The objective of automatic query transformation is to improve the quality of the recovered information. This paper describes a new genetic algorithm used to change the set of terms that compose a user query without user supervision, by complementing an expansion process based on the use of a morphological thesaurus. We apply a stemming process to obtain the stem of a word, for which the thesaurus provides its different forms. The set of candidate query terms is constructed by expanding each term in the original query with the terms morphologically related. The genetic algorithm is in charge of selecting the terms of the final query from the candidate term set. The selection process is based on the retrieval results obtained when searching with different combination of candidate terms. The algorithm shows improvement over some other using standard collections.

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          Most cited references 12

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            Optimisation methods for ranking functions with multiple parameters

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              Query reformulation using automatically generated query concepts from a document space

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                Author and article information

                Contributors
                Conference
                August 2007
                August 2007
                : 1-6
                Affiliations
                Dept. Software Engineering and AI

                Facultad de Informática

                C/ Profesor Jose García Santesmases

                University Complutense of Madrid
                Article
                10.14236/ewic/FDIA2007.15
                © José R. Pérez-Agüera. Published by BCS Learning and Development Ltd. BCS IRSG Symposium: Future Directions in Information Access 2007, Glasgow

                This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

                BCS IRSG Symposium: Future Directions in Information Access 2007
                FDIA
                Glasgow
                28-29 August 2007
                Electronic Workshops in Computing (eWiC)
                Future Directions in Information Access
                Product
                Product Information: 1477-9358BCS Learning & Development
                Self URI (journal page): https://ewic.bcs.org/
                Categories
                Electronic Workshops in Computing

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