On the dynamic adaptation of stochastic language models

  • Authors:
  • Reinhard Kneser;Volker Steinbiss

  • Affiliations:
  • Philips GmbH Forschungslaboratorien, Aachen, Aachen, Germany;Philips GmbH Forschungslaboratorien, Aachen, Aachen, Germany

  • Venue:
  • ICASSP'93 Proceedings of the 1993 IEEE international conference on Acoustics, speech, and signal processing: speech processing - Volume II
  • Year:
  • 1993

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Abstract

This paper introduces a simple and general scheme for the adaptation of stochastic language models to changing text styles. For each word in the running text, the adapted model is a linear combination of specific models, the interpolation parameters being estimated on the preceding text passage. Experiments on an English 1.1-million word corpus show the validity of the approach. The adaptation method improves a bigram language model by 10% in terms of test-set perplexity.