Japanese dependency structure analysis based on maximum entropy models

  • Authors:
  • Kiyotaka Uchimoto;Satoshi Sekine;Hitoshi Isahara

  • Affiliations:
  • Ministry of Posts and Telecommunications, Iwaoka, Iwaoka-cho, Nishi-ku, Kobe, Hyogo, Japan;New York University, New York, NY;Ministry of Posts and Telecommunications, Iwaoka, Iwaoka-cho, Nishi-ku, Kobe, Hyogo, Japan

  • Venue:
  • EACL '99 Proceedings of the ninth conference on European chapter of the Association for Computational Linguistics
  • Year:
  • 1999

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Abstract

This paper describes a dependency structure analysis of Japanese sentences based on the maximum entropy models. Our model is created by learning the weights of some features from a training corpus to predict the dependency between bunsetsus or phrasal units. The dependency accuracy of our system is 87.2% using the Kyoto University corpus. We discuss the contribution of each feature set and the relationship between the number of training data and the accuracy.