Exploiting lexical expansions and Boolean compositions for web querying

Authors:
Bernardo Magnini;Roberto Prevete
Affiliations:
ITC-irst, Istituto per la Ricerca Scientifica e Tecnologica, Italy;ITC-irst, Istituto per la Ricerca Scientifica e Tecnologica, Italy
Venue:
RANLPIR '00 Proceedings of the ACL-2000 workshop on Recent advances in natural language processing and information retrieval: held in conjunction with the 38th Annual Meeting of the Association for Computational Linguistics - Volume 11
Year:
2000

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Abstract

This paper describes an experiment aiming at evaluating the role of NLP based optimizations (i.e. morphological derivation and synonymy expansion) in web search strategies. Keywords and their expansions are composed in two different Boolean expressions (i.e. expansion insertion and Cartesian combination) and then compared with a keyword conjunctive composition, considered as the baseline. Results confirm the hypothesis that linguistic optimizations significantly improve the search engine performances.