An information-theory-based feature type analysis for the modelling of statistical parsing

  • Authors:
  • Sui Zhifang;Zhao Jun;Dekai Wu

  • Affiliations:
  • Hong Kong University of Science & Technology, Clear Water Bay, Hong Kong;Hong Kong University of Science & Technology, Clear Water Bay, Hong Kong;Hong Kong University of Science & Technology, Clear Water Bay, Hong Kong

  • Venue:
  • ACL '00 Proceedings of the 38th Annual Meeting on Association for Computational Linguistics
  • Year:
  • 2000

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Abstract

The paper proposes an information-theory-based method for feature types analysis in probabilistic evaluation modelling for statistical parsing. The basic idea is that we use entropy and conditional entropy to measure whether a feature type grasps some of the information for syntactic structure prediction. Our experiment quantitatively analyzes several feature types' power for syntactic structure prediction and draws a series of interesting conclusions.