Comprehension and compilation in Optimality Theory

  • Authors:
  • Jason Eisner

  • Affiliations:
  • Johns Hopkins University, Baltimore, MD

  • Venue:
  • ACL '02 Proceedings of the 40th Annual Meeting on Association for Computational Linguistics
  • Year:
  • 2002

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Abstract

This paper ties up some loose ends in finite-state Optimality Theory. First, it discusses how to perform comprehension under Optimality Theory grammars consisting of finite-state constraints. Comprehension has not been much studied in OT; we show that unlike production, it does not always yield a regular set, making finite-state methods inapplicable. However, after giving a suitably flexible presentation of OT, we show carefully how to treat comprehension under recent variants of OT in which grammars can be compiled into finite-state transducers. We then unify these variants, showing that compilation is possible if all components of the grammar are regular relations, including the harmony ordering on scored candidates. A side benefit of our construction is a far simpler implementation of directional OT (Eisner, 2000).