The complexity of parsing with extended categorial grammars

  • Authors:
  • Esther König

  • Affiliations:
  • Universität Stuttgart, Stuttgart, FRG

  • Venue:
  • COLING '90 Proceedings of the 13th conference on Computational linguistics - Volume 2
  • Year:
  • 1990

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Abstract

Instead of incorporating a gap-percolation mechanism for handling certain "movement" phenomena, the extended categorial grammars contain special inference rules for treating these problems. The Lambek categorial grammar is one representative of the grammar family under consideration. It allows for a restricted use of hypothetical reasoning. We define a modification of the Cocke-Younger-Kasami (CKY) parsing algorithm which covers this additional deductive power and analyze its time complexity.