Publications
Authors:
  • Nicola Cancedda , Christer Samuelsson
Citation:
Proc. of the Sixth Applied Natural Language Processing Conference (ANLP 2000), Seattle, WA, 2000
Abstract:
Sophisticated grammar formalisms, such as LFG, allow concisely capturing complex linguistic phenomena.
The powerful operators provided by such formalisms can however introduce spurious ambiguity, making parsing
inefficient. A simple form of corpus-based grammar pruning is evaluated experimentally on two wide-coverage
grammars, one English and one French. Speedups of up to a factor 6 were obtained, at a cost in grammatical
coverage of about 13%. A two-stage architecture allows achieving significant speedups without introducing
additional parse failures.
Year:
2000
Report number:
2000/306
Attachments: