Projective dependency parsing with perceptron

  • Authors:
  • Xavier Carreras;Mihai Surdeanu;Lluís Màrquez

  • Affiliations:
  • Technical University of Catalonia (UPC), Jordi Girona Salgado, Barcelona;Technical University of Catalonia (UPC), Jordi Girona Salgado, Barcelona;Technical University of Catalonia (UPC), Jordi Girona Salgado, Barcelona

  • Venue:
  • CoNLL-X '06 Proceedings of the Tenth Conference on Computational Natural Language Learning
  • Year:
  • 2006

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Abstract

We describe an online learning dependency parser for the CoNLL-X Shared Task, based on the bottom-up projective algorithm of Eisner (2000). We experiment with a large feature set that models: the tokens involved in dependencies and their immediate context, the surface-text distance between tokens, and the syntactic context dominated by each dependency. In experiments, the treatment of multilingual information was totally blind.