Using similarity measures to extend the LinGO Lexicon

Cahill, L. (2008) Using similarity measures to extend the LinGO Lexicon In: Proceedings of the 6th International Language Resources and Evaluation (LREC'08), 28-30 May 2008, Marrakech, Morocco.

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Abstract

Deep processing of natural language requires large scale lexical resources that have sufficient coverage at a sufficient level of detail and accuracy (i.e. both recall and precision). Hand-crafted lexicons are extremely labour-intensive to create and maintain, and require continuous updating and extension to retain their level of usability. In this paper we present a technique for extending lexicons using similarity measures that can be extracted from corpora. The technique involves creating lexical entries for unknown words based on entries for words that are known and that are deemed to be distributionally similar. We demonstrate the usefulness of the approach by providing an extended lexicon for the LinGO system using similarity measures extracted from the BNC. We also discuss the advantages and disadvantages of using such lexical extensions in different ways – principally either as part of the main lexicon or as a separate resource used only for “last resort” use.

Item Type: Contribution to conference proceedings in the public domain ( Full Paper)
Additional Information: In European Language Resources Association (ELRA), ISBN 2-9517408
Subjects: G000 Computing and Mathematical Sciences
Faculties: Faculty of Science and Engineering > School of Computing, Engineering and Mathematics > Natural Language Technology
Depositing User: editor cmis
Date Deposited: 14 Jan 2011 09:36
Last Modified: 15 Jun 2012 10:45
URI: http://eprints.brighton.ac.uk/id/eprint/8068

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