A simplified theory of tense representations and constraints on their composition

  • Authors:
  • Michael R. Brent

  • 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

This paper proposes a set of representations for tenses and a set of constraints on how they can be combined in adjunct clauses. The semantics we propose explains the possible meanings of tenses in a variety of sentential contexts. It also supports an elegant constraint on tense combination in adjunct clauses. These semantic representations provide insights into the interpretations of tenses, and the constraints provide a source of syntactic disambiguation that has not previously been demonstrated. We demonstrate an implemented disambiguator for a certain class of three-clause sentences based on our theory.