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KL-divergence regularized deep neural network adaptation for improved large vocabulary speech recognition

Yu, Dong, Yao, Kaisheng, Su, Hang, Li, Gang, Seide, Frank·2013·2013 IEEE International Conference on Acoustics, Speech and Signal Processing

Abstract

We propose a novel regularized adaptation technique for context dependent deep neural network hidden Markov models (CD-DNN-HMMs). The CD-DNN-HMM has a large output layer and many large hidden layers, each with thousands of neurons. The huge number of parameters in the CD-DNN-HMM makes adaptation a challenging task, esp. when the adaptation set is small. The technique developed in this paper adapts the model conservatively by forcing the senone distribution estimated from the adapted model to be close to that from the unadapted model. This constraint is realized by adding Kullback-Leibler divergence (KLD) regularization to the adaptation criterion. We show that applying this regularization is equivalent to changing the target distribution in the conventional backpropagation algorithm. Experiments on Xbox voice search, short message dictation, and Switchboard and lecture speech transcription tasks demonstrate that the proposed adaptation technique can provide 2%-30% relative error reduction against the already very strong speaker independent CD-DNN-HMM systems using different adaptation sets under both supervised and unsupervised adaptation setups.

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Metadata

Authors
Yu, D., Yao, K., Su, H., Li, G., & Seide, F.
Venue
2013 IEEE International Conference on Acoustics, Speech and Signal Processing
Publisher
IEEE
Published
2013-05
Pages
7893-7897
ISSN
1520-6149 (ISSN-L)
OpenAlex
W1989549063
Cited by
408
References
25
FWCI
31.87
Type
conference paper
Language
en
Open access
closed

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CoChat. (2026). Citation check: KL-divergence regularized deep neural network adaptation for improved large vocabulary speech recognition. https://app.cochat.ai/papers/10.1109/icassp.2013.6639201
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Yu, D., Yao, K., Su, H., Li, G., & Seide, F. (2013). KL-divergence regularized deep neural network adaptation for improved large vocabulary speech recognition. 2013 IEEE International Conference on Acoustics, Speech and Signal Processing. https://doi.org/10.1109/icassp.2013.6639201

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