Other-anaphora resolution in biomedical texts with automatically mined patterns

  • Authors:
  • Chen Bin;Yang Xiaofeng;Su Jian;Tan Chew Lim

  • Affiliations:
  • National University of Singapore;Institute for Infocomm Research, A-STAR, Singapore;Institute for Infocomm Research, A-STAR, Singapore;National University of Singapore

  • Venue:
  • COLING '08 Proceedings of the 22nd International Conference on Computational Linguistics - Volume 1
  • Year:
  • 2008

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Abstract

This paper proposes an other-anaphora resolution approach in bio-medical texts. It utilizes automatically mined patterns to discover the semantic relation between an anaphor and a candidate antecedent. The knowledge from lexical patterns is incorporated in a machine learning framework to perform anaphora resolution. The experiments show that machine learning approach combined with the auto-mined knowledge is effective for other-anaphora resolution in the biomedical domain. Our system with auto-mined patterns gives an accuracy of 56.5%., yielding 16.2% improvement against the baseline system without pattern features, and 9% improvement against the system using manually designed patterns.