Deriving the predicate-argument structure for a free word order language

  • Authors:
  • Cem Bozsahin

  • Affiliations:
  • Middle East Technical University, Ankara, Turkey

  • Venue:
  • COLING '98 Proceedings of the 17th international conference on Computational linguistics - Volume 1
  • Year:
  • 1998

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Abstract

In relatively free word order languages, grammatical functions are intricately related to case marking. Assuming an ordered representation of the predicate-argument structure, this work proposes a Combinatory Categorial Grammar formulation of relating surface case cues to categories and types for correctly placing the arguments in the predicate-argument structure. This is achieved by treating case markers as type shifters. Unlike other CG formulations, type shifting does not proliferate or cause spurious ambiguity. Categories of all argument-encoding grammatical functions follow from the same principle of category assignment. Normal order evaluation of the combinatory form reveals the predicate-argument structure. The application of the method to Turkish is shown.