PP-attachment disambiguation boosted by a gigantic volume of unambiguous examples

  • Authors:
  • Daisuke Kawahara;Sadao Kurohashi

  • Affiliations:
  • Graduate School of Information Science and Technology, University of Tokyo, Tokyo, Japan;Graduate School of Information Science and Technology, University of Tokyo, Tokyo, Japan

  • Venue:
  • IJCNLP'05 Proceedings of the Second international joint conference on Natural Language Processing
  • Year:
  • 2005

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Abstract

We present a PP-attachment disambiguation method based on a gigantic volume of unambiguous examples extracted from raw corpus. The unambiguous examples are utilized to acquire precise lexical preferences for PP-attachment disambiguation. Attachment decisions are made by a machine learning method that optimizes the use of the lexical preferences. Our experiments indicate that the precise lexical preferences work effectively.