Improving Children's Speech Recognition by HMM Interpolation with an Adults' Speech Recognizer

Beitrag bei einer Tagung
(Konferenzbeitrag)


Details zur Publikation

Autorinnen und Autoren: Steidl S, Stemmer G, Hacker C, Nöth E, Niemann H
Herausgeber: Michaelis Bernd, Krell Gerald
Verlag: Springer-Verlag
Verlagsort: Berlin, Heidelberg, New York
Jahr der Veröffentlichung: 2003
Tagungsband: Pattern Recognition, 25th DAGM Symposium, Magdeburg, Germany, September 2003, Proceedings
Seitenbereich: 600-607
Sprache: Englisch


Abstract


In this paper we address the problem of building a good speech recognizer if there is only a small amount of training data available. The acoustic models can be improved by interpolation with the well-trained models of a second recognizer from a different application scenario. In our case, we interpolate a children’s speech recognizer with a recognizer for adults’ speech. Each hidden Markov model has its ownset of interpolation partners; experiments were conducted with up to 50 partners. The interpolation weights are estimated automatically on a validation set using the EM algorithm. The word accuracy of the children’s speech recognizer could be improved from 74.6 % to 81.5 %. This is a relative improvement of almost 10 %.



FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Niemann, Heinrich Prof. Dr.
Technische Fakultät
Nöth, Elmar Prof. Dr.-Ing.
Professur für Informatik (Mustererkennung)
Steidl, Stefan PD Dr.
Lehrstuhl für Informatik 5 (Mustererkennung)


Zitierweisen

APA:
Steidl, S., Stemmer, G., Hacker, C., Nöth, E., & Niemann, H. (2003). Improving Children's Speech Recognition by HMM Interpolation with an Adults' Speech Recognizer. In Michaelis Bernd, Krell Gerald (Eds.), Pattern Recognition, 25th DAGM Symposium, Magdeburg, Germany, September 2003, Proceedings (pp. 600-607). Magdeburg, DE: Berlin, Heidelberg, New York: Springer-Verlag.

MLA:
Steidl, Stefan, et al. "Improving Children's Speech Recognition by HMM Interpolation with an Adults' Speech Recognizer." Proceedings of the DAGM '03, 25th Pattern Recognition Symposium, Magdeburg Ed. Michaelis Bernd, Krell Gerald, Berlin, Heidelberg, New York: Springer-Verlag, 2003. 600-607.

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Zuletzt aktualisiert 2018-08-08 um 22:53