Sequences of part of speech tags vs. sequences of phrase labels: how do they help in parsing?

  • Authors:
  • Gabriel Infante-Lopez;Maarten de Rijke

  • Affiliations:
  • FaMAF, Universidad Nacional de Córdoba, Córdoba, Argentina;Informatics Institute, University of Amsterdam, The Netherlands

  • Venue:
  • CICLing'06 Proceedings of the 7th international conference on Computational Linguistics and Intelligent Text Processing
  • Year:
  • 2006

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Abstract

We compare the contributions made by sequences of part of speech tags and sequences of phrase labels for the task of grammatical relation finding. Both are used for grammar induction, and we show that English labels of grammatical relations follow a very strict sequential order, but not as strict as POS tags, resulting in better performance of the latter on the relation finding task.