Extremely lexicalized models for accurate and fast HPSG parsing

Takashi Ninomiya, Takuya Matsuzaki, Yoshimasa Tsuruoka, Yusuke Miyao, Jun'ichi Tsujii

Research output: Chapter in Book/Report/Conference proceedingConference contribution

18 Citations (Scopus)

Abstract

This paper describes an extremely lexicalized probabilistic model for fast and accurate HPSG parsing. In this model, the probabilities of parse trees are defined with only the probabilities of selecting lexical entries. The proposed model is very simple, and experiments revealed that the implemented parser runs around four times faster than the previous model and that the proposed model has a high accuracy comparable to that of the previous model for probabilistic HPSG, which is defined over phrase structures. We also developed a hybrid of our probabilistic model and the conventional phrasestructure-based model. The hybrid model is not only significantly faster but also significantly more accurate by two points of precision and recall compared to the previous model.

Original languageEnglish
Title of host publicationCOLING/ACL 2006 - EMNLP 2006
Subtitle of host publication2006 Conference on Empirical Methods in Natural Language Processing, Proceedings of the Conference
Pages155-163
Number of pages9
Publication statusPublished - 1 Dec 2006
Event11th Conference on Empirical Methods in Natural Language Proceessing, EMNLP 2006, Held in Conjunction with COLING/ACL 2006 - Sydney, NSW, Australia
Duration: 22 Jul 200623 Jul 2006

Publication series

NameCOLING/ACL 2006 - EMNLP 2006: 2006 Conference on Empirical Methods in Natural Language Processing, Proceedings of the Conference

Conference

Conference11th Conference on Empirical Methods in Natural Language Proceessing, EMNLP 2006, Held in Conjunction with COLING/ACL 2006
CountryAustralia
CitySydney, NSW
Period22/07/0623/07/06

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Ninomiya, T., Matsuzaki, T., Tsuruoka, Y., Miyao, Y., & Tsujii, J. (2006). Extremely lexicalized models for accurate and fast HPSG parsing. In COLING/ACL 2006 - EMNLP 2006: 2006 Conference on Empirical Methods in Natural Language Processing, Proceedings of the Conference (pp. 155-163). (COLING/ACL 2006 - EMNLP 2006: 2006 Conference on Empirical Methods in Natural Language Processing, Proceedings of the Conference).