Lexical ambiguity and the role of knowledge representation in lexicon design

  • Authors:
  • Branimir Boguraev;James Pustejovsky

  • Affiliations:
  • IBM T. J. Watson Research Center, Yorktown Heights, New York;Brandeis University, Waltham, MA

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

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Abstract

The traditional framework for ambiguity resolution employs only 'static' knowledge, expressed generally as selectional restrictions or domain specific constraints, and makes no use of any specific knowledge manipulation mechanisms apart from the simple ability to match valences of structurally related words. In contrast, this paper suggests how a theory of lexical semantics making use of a knowledge representation framework offers a richer, more expressive vocabulary for lexical information. In particular, by performing specialized inference over the ways in which aspects of knowledge structures of words in context can be composed, mutually compatible and contextully relevant lexical components of words and phrases are highlighted. In the view presented here, lexical ambiguity resolution is an integral part of the same procedure that creates the semantic interpretation of a sentence itself.