自监督聚类重训练的语音表示学习

doi:10.16451/j.cnki.issn1003-6059.202205007

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Abstract The existing self-supervised speech representation learning methods based on reconstruction are trained by restoring and rebuilding speech frames. However, the phoneme category information contained in the speech frame is underutilized. Combining self-supervised learning and noisy student training, a clustering and retraining based self-supervised speech representation learning method is proposed. Firstly, based on an initial self-supervised speech representation model (the teacher model),the pseudo-label reflecting the phoneme class information is obtained via unsupervised clustering. Secondly, the pseudo-label prediction task and the original masked frame reconstruction task are combined to retrain the speech representation model(the student model). Finally, the new student model is taken as the new teacher model to optimize pseudo-labels and representation models continually by iterating the whole clustering and retraining processes. Experimental results show that the speech representation model after clustering and retraining achieves better performance in downstream phoneme recognition and speaker recognition tasks.

Key words： Unsupervised Learning Self-Supervised Learning Speech Representation Pretrained Model Mask Reconstruction Noisy Student Training

Received: 30 March 2022

ZTFLH:

TP912.34

Fund:National Natural Science Foundation of China(No.61673395,62171470)

Corresponding Authors: ZHANG Wenlin, Ph.D., associate professor. His research in-terests include speech signal processing, speech recognition and machine learning.

About author:: LIU Xuepeng, master student. His research interests include intelligent information processing, unsupervised learning and speech representation learning.
NIU Tong, Ph.D., associate professor. His research interests include speech recognition and deep learning.
YANG Xukui, Ph.D., lecturer. His research interests include language identification, continuous speech recognition and machine learning.
QU Dan, Ph.D., professor. Her research interests include machine learning, deep lear-ning and speech recognition.

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	ZHANG Wenlin
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Cite this article:

ZHANG Wenlin,LIU Xuepeng,NIU Tong等. Clustering and Retraining Based Self-Supervised Speech Representation Learning Method[J]. Pattern Recognition and Artificial Intelligence, 2022, 35(5): 461-471.

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http://manu46.magtech.com.cn/Jweb_prai/EN/10.16451/j.cnki.issn1003-6059.202205007 OR http://manu46.magtech.com.cn/Jweb_prai/EN/Y2022/V35/I5/461

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