Collective semantic role labeling on open news corpus by leveraging redundancy

  • Authors:
  • Xiaohua Liu;Kuan Li;Bo Han;Ming Zhou;Long Jiang;Daniel Tse;Zhongyang Xiong

  • Affiliations:
  • Harbin Institute of Technology and Microsoft Research Asia;Chongqing University;Dalian University of Technology;Microsoft Research Asia;Microsoft Research Asia;The University of Sydney;Chongqing University

  • Venue:
  • COLING '10 Proceedings of the 23rd International Conference on Computational Linguistics: Posters
  • Year:
  • 2010

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Abstract

We propose a novel MLN-based method that collectively conducts SRL on groups of news sentences. Our method is built upon a baseline SRL, which uses no parsers and leverages redundancy. We evaluate our method on a manually labeled news corpus and demonstrate that news redundancy significantly improves the performance of the baseline, e.g., it improves the F-score from 64.13% to 67.66%.