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Subword Regularization and Beam Search Decoding for End-to-End Automatic Speech Recognition

Abstract: 

In this paper, we experiment with the recently introduced subword regularization technique \cite{kudo2018subword} in the context of end-to-end automatic speech recognition (ASR). We present results from both attention-based and CTC-based ASR systems on two common benchmark datasets, the 80 hour Wall Street Journal corpus and 1,000 hour Librispeech corpus. We also introduce a novel subword beam search decoding algorithm that significantly improves the final performance of the CTC-based systems. Overall, we find that subword regularization improves the performance of both types of ASR systems, with the regularized attention-based model performing best overall.

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Paper Details

Authors:
Jennifer Drexler, James Glass
Submitted On:
14 May 2019 - 9:04am
Short Link:
Type:
Poster
Event:
Presenter's Name:
Jennifer Drexler
Paper Code:
SLP-P7.5
Document Year:
2019
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Document Files

ICASSP_poster_final.pdf

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[1] Jennifer Drexler, James Glass, "Subword Regularization and Beam Search Decoding for End-to-End Automatic Speech Recognition", IEEE SigPort, 2019. [Online]. Available: http://sigport.org/4509. Accessed: May. 23, 2019.
@article{4509-19,
url = {http://sigport.org/4509},
author = {Jennifer Drexler; James Glass },
publisher = {IEEE SigPort},
title = {Subword Regularization and Beam Search Decoding for End-to-End Automatic Speech Recognition},
year = {2019} }
TY - EJOUR
T1 - Subword Regularization and Beam Search Decoding for End-to-End Automatic Speech Recognition
AU - Jennifer Drexler; James Glass
PY - 2019
PB - IEEE SigPort
UR - http://sigport.org/4509
ER -
Jennifer Drexler, James Glass. (2019). Subword Regularization and Beam Search Decoding for End-to-End Automatic Speech Recognition. IEEE SigPort. http://sigport.org/4509
Jennifer Drexler, James Glass, 2019. Subword Regularization and Beam Search Decoding for End-to-End Automatic Speech Recognition. Available at: http://sigport.org/4509.
Jennifer Drexler, James Glass. (2019). "Subword Regularization and Beam Search Decoding for End-to-End Automatic Speech Recognition." Web.
1. Jennifer Drexler, James Glass. Subword Regularization and Beam Search Decoding for End-to-End Automatic Speech Recognition [Internet]. IEEE SigPort; 2019. Available from : http://sigport.org/4509