An implementable semantics for comparative constructions

  • Authors:
  • Manny Rayner;Amelie Banks

  • Affiliations:
  • Swedish Institute of Computer Science, Kista, Sweden;Swedish Institute of Computer Science, Kista, Sweden

  • Venue:
  • Computational Linguistics
  • Year:
  • 1990

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Abstract

We describe a comprehensive treatment of the syntax and semantics of comparative constructions based on theoretical work by Pinkham, which can be implemented in a relatively straightforward fashion within a feature-based phrase-structure grammar. Comparatives are divided up into "clausal" and "phrasal" constructions; in contrast to most previous theories, however, phrasals are not regarded as reduced forms of clausals. We begin by defining a Montagovian semantics for phrasal comparatives that directly links interpretation rules to the surface syntactic structure; we then show how this solution can be made computationally more efficient by "factoring" the interpretation through an intermediate level of representation, using a method similar to that used for dealing with scoping phenomena. Detailed examples are provided, showing how the method can correctly describe the semantics of a variety of superficially widely different comparative constructions. The ideas have all been implemented within a large-scale grammar for Swedish, a "toy" version of which is presented, along with examples of the output.