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The Utility of Semantic-Pragmatic Information and Dialogue-State for Speech Recognition in Spoken Dialogue Systems

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Text, Speech and Dialogue (TSD 2000)

Part of the book series: Lecture Notes in Computer Science ((LNAI,volume 1902))

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Abstract

Information about the dialogue-state can be integrated into language models to improve performance of the speech recogniser in a dialogue system. A dialogue state is defined in this paper as the question, the user is replying to. One of the main problems in dialogue-state dependent language modelling is the limitation of training data. In order to obtain robust models, we use the method of rational interpolation to smooth between a dialogue-state dependent and a general language model. In contrast to linear interpolation methods, rational interpolation weights the different predictors according to their reliability. Semantic-pragmatic knowledge is used to enlarge the training data of the language models. Both methods reduce perplexity and word error rate significantly.

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References

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Author information

Authors and Affiliations

  1. Chair for Pattern Recognition, University of Erlangen-Nürnberg, Martensstrasse 3, D-91058, Erlangen, Germany

    Georg Stemmer, Elmar Nöth & Heinrich Niemann

Authors
  1. Georg Stemmer
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  2. Elmar Nöth
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  3. Heinrich Niemann
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Editor information

Editors and Affiliations

  1. Faculty of Informatics Department of Programming Systems and Communication, Masaryk University, Botanická 68a, 602 00, Brno, Czech Republic

    Petr Sojka

  2. Faculty of Informatics, Department of Information Technologies, Masaryk University, Botanická 68a, 602 00, Brno, Czech Republic

    Ivan Kopeček  & Karel Pala  & 

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© 2000 Springer-Verlag Berlin Heidelberg

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Stemmer, G., Nöth, E., Niemann, H. (2000). The Utility of Semantic-Pragmatic Information and Dialogue-State for Speech Recognition in Spoken Dialogue Systems. In: Sojka, P., Kopeček, I., Pala, K. (eds) Text, Speech and Dialogue. TSD 2000. Lecture Notes in Computer Science(), vol 1902. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45323-7_74

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  • DOI: https://doi.org/10.1007/3-540-45323-7_74

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-41042-3

  • Online ISBN: 978-3-540-45323-9

  • eBook Packages: Springer Book Archive

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