Computational structure of generative phonology and its relation to language comprehension

  • Authors:
  • Eric Sven Ristad

  • Affiliations:
  • MIT Artificial Intelligence Lab, Cambridge, MA

  • Venue:
  • ACL '90 Proceedings of the 28th annual meeting on Association for Computational Linguistics
  • Year:
  • 1990

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Abstract

We analyze the computational complexity of phonological models as they have developed over the past twenty years. The major results are that generation and recognition are undecidable for segmental models, and that recognition is NP-hard for that portion of segmental phonology subsumed by modern autosegmental models. Formal restrictions are evaluated.