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Cited by 385

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Fast and accurate recurrent neural network acoustic models for speech recognition

Open access
Sak, Haşim, Senior, Andrew, Rao, Kanishka, Beaufays, Françoise·2015·Interspeech 2015

Abstract

We have recently shown that deep Long Short-Term Memory (LSTM) recurrent neural networks (RNNs) outperform feed forward deep neural networks (DNNs) as acoustic models for speech recognition. More recently, we have shown that the performance of sequence trained context dependent (CD) hidden Markov model (HMM) acoustic models using such LSTM RNNs can be equaled by sequence trained phone models initialized with connectionist temporal classification (CTC). In this paper, we present techniques that further improve performance of LSTM RNN acoustic models for large vocabulary speech recognition. We show that frame stacking and reduced frame rate lead to more accurate models and faster decoding. CD phone modeling leads to further improvements. We also present initial results for LSTM RNN models outputting words directly.

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Metadata

Authors
Sak, H., Senior, A., Rao, K., & Beaufays, F.
Venue
Interspeech 2015
Publisher
ISCA
Published
2015-09-06
Pages
1468-1472
ISSN
2308-457X (ISSN-L)
OpenAlex
W1489125746
Cited by
385
References
3
FWCI
30.87
Type
conference paper
Language
en
Open access
green

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CoChat. (2026). Citation check: Fast and accurate recurrent neural network acoustic models for speech recognition. https://app.cochat.ai/papers/10.21437/interspeech.2015-350
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Sak, H., Senior, A., Rao, K., & Beaufays, F. (2015). Fast and accurate recurrent neural network acoustic models for speech recognition. Interspeech 2015. https://doi.org/10.21437/interspeech.2015-350

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