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Zero Pronoun Resolution Based on Automatically Constructed Case Frames and Structural Preference of Antecedents

  • Daisuke Kawahara
  • Sadao Kurohashi
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3248)

Abstract

This paper describes a method to detect and resolve zero pronouns in Japanese text. We detect zero pronouns by case analysis based on automatically constructed case frames, and select their appropriate antecedents based on similarity to examples in the case frames. We also introduce structural preference of antecedents to precisely capture the tendency that a zero pronoun has its antecedent in its close position. Experimental results on 100 articles indicated that the precision and recall of zero pronoun detection is 87.1% and 74.8% respectively and the accuracy of antecedent estimation is 61.8%.

Keywords

Structural Preference Liberal Democratic Party Location Class Main Clause Subordinate Clause 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Daisuke Kawahara
    • 1
  • Sadao Kurohashi
    • 1
  1. 1.University of TokyoTokyoJapan

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