Reducing the annotation effort for letter-to-phoneme conversion

  • Authors:
  • Kenneth Dwyer;Grzegorz Kondrak

  • Affiliations:
  • University of Alberta, Edmonton, AB, Canada;University of Alberta, Edmonton, AB, Canada

  • Venue:
  • ACL '09 Proceedings of the Joint Conference of the 47th Annual Meeting of the ACL and the 4th International Joint Conference on Natural Language Processing of the AFNLP: Volume 1 - Volume 1
  • Year:
  • 2009

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Abstract

Letter-to-phoneme (L2P) conversion is the process of producing a correct phoneme sequence for a word, given its letters. It is often desirable to reduce the quantity of training data --- and hence human annotation --- that is needed to train an L2P classifier for a new language. In this paper, we confront the challenge of building an accurate L2P classifier with a minimal amount of training data by combining several diverse techniques: context ordering, letter clustering, active learning, and phonetic L2P alignment. Experiments on six languages show up to 75% reduction in annotation effort.