Free indexation: combinatorial analysis and a compositional algorithm

  • Authors:
  • Sandiway Fong

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

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

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Abstract

The principle known as 'free indexation' plays an important role in the determination of the referential properties of noun phrases in the principle-and-parameters language framework. First, by investigating the combinatorics of free indexation, we show that the problem of enumerating all possible indexings requires exponential time. Secondly, we exhibit a provably optimal free indexation algorithm.