Using self-trained bilexical preferences to improve disambiguation accuracy

  • Authors:
  • Gertjan van Noord

  • Affiliations:
  • University of Groningen

  • Venue:
  • IWPT '07 Proceedings of the 10th International Conference on Parsing Technologies
  • Year:
  • 2007

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Abstract

A method is described to incorporate bilexical preferences between phrase heads, such as selection restrictions, in a Maximum-Entropy parser for Dutch. The bilexical preferences are modelled as association rates which are determined on the basis of a very large parsed corpus (about 500M words). We show that the incorporation of such self-trained preferences improves parsing accuracy significantly.