Abstract
Ambiguity packing is a well known technique for enhancing the efficiency of context-free parsers. However, in the case of unification-augmented context-free parsers where parsing is interleaved with feature unification, the propagation of feature structures imposes difficulties on the ability of the parser to effectively perform ambiguity packing. We demonstrate that a clever heuristic for prioritizing the execution order of grammar rules and parsing actions can achieve a high level of ambiguity packing that is provably optimal. We present empirical evaluations of the proposed technique, performed with both a Generalized LR parser and a chart parser, that demonstrate its effectiveness.- Anthology ID:
- 2000.iwpt-1.16
- Volume:
- Proceedings of the Sixth International Workshop on Parsing Technologies
- Month:
- February 23-25
- Year:
- 2000
- Address:
- Trento, Italy
- Editors:
- Alberto Lavelli, John Carroll, Robert C. Berwick, Harry C. Bunt, Bob Carpenter, John Carroll, Ken Church, Mark Johnson, Aravind Joshi, Ronald Kaplan, Martin Kay, Bernard Lang, Alon Lavie, Anton Nijholt, Christer Samuelsson, Mark Steedman, Oliviero Stock, Hozumi Tanaka, Masaru Tomita, Hans Uszkoreit, K. Vijay-Shanker, David Weir, Mats Wiren
- Venue:
- IWPT
- SIG:
- SIGPARSE
- Publisher:
- Association for Computational Linguistics
- Note:
- Pages:
- 147–158
- Language:
- URL:
- https://aclanthology.org/2000.iwpt-1.16
- DOI:
- Cite (ACL):
- Alon Lavie and Carolyn Penstein Rosé. 2000. Optimal Ambiguity Packing in Context-free Parsers with Interleaved Unification. In Proceedings of the Sixth International Workshop on Parsing Technologies, pages 147–158, Trento, Italy. Association for Computational Linguistics.
- Cite (Informal):
- Optimal Ambiguity Packing in Context-free Parsers with Interleaved Unification (Lavie & Rosé, IWPT 2000)
- PDF:
- https://preview.aclanthology.org/revert-3132-ingestion-checklist/2000.iwpt-1.16.pdf