Resource sharing among HPSG and LTAG communities by a method of grammar conversion from FB-LTAG to HPSG

Authors:
Naoki Yoshinaga;Yusuke Miyao;Kentaro Torisawa;Jun'ichi Tsujii
Affiliations:
University of Tokyo, Bunkyo-ku, Tokyo, Japan;University of Tokyo, Bunkyo-ku, Tokyo, Japan;Japan Advanced Institute of Science and Technology, Tatsunokuchi-cho, Noumi-gun, Ishikawa, Japan;University of Tokyo, Bunkyo-ku, Tokyo, Japan
Venue:
STAR '01 Proceedings of the ACL 2001 Workshop on Sharing Tools and Resources - Volume 15
Year:
2001

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Abstract

This paper describes the RenTAL system, which enables sharing resources in LTAG and HPSG formalisms by a method of grammar conversion from an FB-LTAG grammar to a strongly equivalent HPSG-style grammar. The system is applied to the latest version of the XTAG English grammar. Experimental results show that the obtained HPSG-style grammar successfully worked with an HPSG parser, and achieved a drastic speed-up against an LTAG parser. This system enables to share not only grammars and lexicons but also parsing techniques.