Cited by 304Speech Recognition and SynthesisSpeech and Audio ProcessingPhonetics and Phonology Research

Neural Speech Recognizer: Acoustic-to-Word LSTM Model for Large Vocabulary Speech Recognition

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Soltau, Hagen, Liao, Hank, Sak, Haşim·2017·Interspeech 2017

Abstract

We present results that show it is possible to build a competitive, greatly simplified, large vocabulary continuous speech recognition system with whole words as acoustic units. We model the output vocabulary of about 100,000 words directly using deep bi-directional LSTM RNNs with CTC loss. The model is trained on 125,000 hours of semi-supervised acoustic training data, which enables us to alleviate the data sparsity problem for word models. We show that the CTC word models work very well as an end-to-end all-neural speech recognition model without the use of traditional context-dependent sub-word phone units that require a pronunciation lexicon, and without any language model removing the need to decode. We demonstrate that the CTC word models perform better than a strong, more complex, state-of-the-art baseline with sub-word units.

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Registry

Crossref · 10.21437/interspeech.2017-1566

Cites

21 of 21 references verified0 citation errors · 0 not checkable

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  • A simple end-to-end model can produce better results when trained with large-scale data, compared with a complex model trained with small-scale data.

    “Additionally, Soltau et al. (2017) have proved that a simple end-to-end model can produce better results when trained with large-scale data, compared with a complex model trained with small-scale data.”

    From MOPRD: A multidisciplinary open peer review dataset (2022) · cites this paper as Soltau et al. (2017)

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Authors
Soltau, H., Liao, H., & Sak, H.
Affiliations
Google (United States) (US)
Venue
Interspeech 2017
Publisher
ISCA
Published
2017-08-20
Pages
3707-3711
ISSN
2308-457X (ISSN-L)
OpenAlex
W2545177271
Cited by
304
References
21
Citations by year
2025: 9 · 2024: 6 · 2023: 26 · 2022: 25 · 2021: 37 · 2020: 39 · 2019: 73 · 2018: 58 · 2017: 31
FWCI
25.07
Type
conference paper
Language
en
Open access
Licence
public-domain
Locations
  • Interspeech (USB) (publishedVersion)
  • arXiv (Cornell University) (submittedVersion, public-domain)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Computer Science › Artificial Intelligence › Speech Recognition and Synthesis
  • Physical Sciences › Computer Science › Signal Processing › Speech and Audio Processing
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Phonetics and Phonology Research
Keywords
large vocabulary continuous speech recognition, bidirectional LSTM, CTC loss, data sparsity, pronunciation dictionary

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