A foundation for semantic interpretation

  • Authors:
  • Graeme Hirst

  • Affiliations:
  • Brown University, Providence, RI

  • Venue:
  • ACL '83 Proceedings of the 21st annual meeting on Association for Computational Linguistics
  • Year:
  • 1983

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Abstract

Traditionally, translation from the parse tree representing a sentence to a semantic representation (such as frames or procedural semantics) has always been the most ad hoc part of natural language understanding (NLU) systems. However, recent advances in linguistics, most notably the system of formal semantics known as Montague semantics, suggest ways of putting NLU semantics onto a cleaner and firmer foundation. We are using a Montague-inspired approach to semantics in an integrated NLU and problem-solving system that we are building. Like Montague's, our semantics are compositional by design and strongly typed, with semantic rules in one-to-one correspondence with the meaning-affecting rules of a Marcus-style parser. We have replaced Montague's semantic objects, functors and truth conditions, with the elements of the frame language Frail, and added a word sense and case slot disambiguation system. The result is a foundation for semantic interpretation that we believe to be superior to previous approaches.