Paper: Constraining robust constructions for broad-coverage parsing with precision grammars

ACL ID C10-1026
Title Constraining robust constructions for broad-coverage parsing with precision grammars
Venue International Conference on Computational Linguistics
Session Main Conference
Year 2010
Authors

This paper addresses two problems that commonly arise in parsing with precision- oriented, rule-based models of grammar: lack of speed and lack of robustness. First, we show how we can reduce parsing times by restricting the number of tasks the parser will carry out, based on a gener- ative model of rule applications. Sec- ond, we show that a combination of search space restriction and radically overgen- erating robustness rules lead to a more robust parser, with only a small penalty in precision. Applying both the robust- ness rules and a fragment fallback strat- egy showed better recall than just giving fragment analyses, with equal precision. Results are reported on a medium-sized HPSG grammar for German. 1