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Sequence-to-Sequence Speech Recognition with Time-Depth Separable Convolutions

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arxiv 1904.02619 v1 pith:XWJDO62O submitted 2019-04-04 cs.CL

classification cs.CL
keywords modelefficientseparablesequence-to-sequencetime-deptharchitectureconvolutionconvolutional
verification ladder T0 review T1 audit T2 compute T3 formal
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We propose a fully convolutional sequence-to-sequence encoder architecture with a simple and efficient decoder. Our model improves WER on LibriSpeech while being an order of magnitude more efficient than a strong RNN baseline. Key to our approach is a time-depth separable convolution block which dramatically reduces the number of parameters in the model while keeping the receptive field large. We also give a stable and efficient beam search inference procedure which allows us to effectively integrate a language model. Coupled with a convolutional language model, our time-depth separable convolution architecture improves by more than 22% relative WER over the best previously reported sequence-to-sequence results on the noisy LibriSpeech test set.

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Cited by 1 Pith paper

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  1. Scaling and Distilling Transformer Models for sEMG

    eess.AS 2025-07 accept novelty 6.0 of 10

    Vanilla transformers on the emg2qwerty dataset improve cross-user typing accuracy up to 109M parameters, and simple logit distillation recovers most of the gain in a 2.2M-parameter student.

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