Semantic role labeling using complete syntactic analysis

  • Authors:
  • Mihai Surdeanu;Jordi Turmo

  • Affiliations:
  • Technical University of Catalunya;Technical University of Catalunya

  • Venue:
  • CONLL '05 Proceedings of the Ninth Conference on Computational Natural Language Learning
  • Year:
  • 2005

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Abstract

In this paper we introduce a semantic role labeling system constructed on top of the full syntactic analysis of text. The labeling problem is modeled using a rich set of lexical, syntactic, and semantic attributes and learned using one-versus-all AdaBoost classifiers. Our results indicate that even a simple approach that assumes that each semantic argument maps into exactly one syntactic phrase obtains encouraging performance, surpassing the best system that uses partial syntax by almost 6%.