Improving Japanese zero pronoun resolution by global word sense disambiguation

Daisuke Kawahara, Sadao Kurohashi

Research output: Contribution to conferencePaperpeer-review

2 Citations (Scopus)

Abstract

This paper proposes unsupervised word sense disambiguation based on automatically constructed case frames and its incorporation into our zero pronoun resolution system. The word sense disambiguation is applied to verbs and nouns. We consider that case frames define verb senses and semantic features in a thesaurus define noun senses, respectively, and perform sense disambiguation by selecting them based on case analysis. In addition, according to the one sense per discourse heuristic, the word sense disambiguation results are cached and applied globally to the subsequent words. We integrated this global word sense disambiguation into our zero pronoun resolution system, and conducted experiments of zero pronoun resolution on two different domain corpora. Both of the experimental results indicated the effectiveness of our approach.

Original languageEnglish
Publication statusPublished - 2004
Externally publishedYes
Event20th International Conference on Computational Linguistics, COLING 2004 - Geneva, Switzerland
Duration: 2004 Aug 232004 Aug 27

Conference

Conference20th International Conference on Computational Linguistics, COLING 2004
Country/TerritorySwitzerland
CityGeneva
Period04/8/2304/8/27

ASJC Scopus subject areas

  • Computational Theory and Mathematics
  • Language and Linguistics
  • Linguistics and Language

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