Capturing practical natural language transformations

  • Authors:
  • Kevin Knight

  • Affiliations:
  • Information Sciences Institute, University of Southern California, Marina del Rey, USA 90292

  • Venue:
  • Machine Translation
  • Year:
  • 2007

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Abstract

We study automata for capturing the transformations in practical natural language processing (NLP) systems, especially those that translate between human languages. For several variations of finite-state string and tree transducers, we survey answers to formal questions about their expressiveness, modularity, teachability, and generalization. We conclude that no formal device yet captures everything that is desirable, and we point to future research.