Attention-Guided Adaptation for Code-Switching Speech Recognition

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Hauptverfasser: Aditya, Bobbi, Rohmatillah, Mahdin, Tai, Liang-Hsuan, Chien, Jen-Tzung
Format: Preprint
Veröffentlicht: 2023
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author Aditya, Bobbi
Rohmatillah, Mahdin
Tai, Liang-Hsuan
Chien, Jen-Tzung
author_facet Aditya, Bobbi
Rohmatillah, Mahdin
Tai, Liang-Hsuan
Chien, Jen-Tzung
contents The prevalence of the powerful multilingual models, such as Whisper, has significantly advanced the researches on speech recognition. However, these models often struggle with handling the code-switching setting, which is essential in multilingual speech recognition. Recent studies have attempted to address this setting by separating the modules for different languages to ensure distinct latent representations for languages. Some other methods considered the switching mechanism based on language identification. In this study, a new attention-guided adaptation is proposed to conduct parameter-efficient learning for bilingual ASR. This method selects those attention heads in a model which closely express language identities and then guided those heads to be correctly attended with their corresponding languages. The experiments on the Mandarin-English code-switching speech corpus show that the proposed approach achieves a 14.2% mixed error rate, surpassing state-of-the-art method, where only 5.6% additional parameters over Whisper are trained.
format Preprint
id arxiv_https___arxiv_org_abs_2312_08856
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Attention-Guided Adaptation for Code-Switching Speech Recognition
Aditya, Bobbi
Rohmatillah, Mahdin
Tai, Liang-Hsuan
Chien, Jen-Tzung
Audio and Speech Processing
Sound
The prevalence of the powerful multilingual models, such as Whisper, has significantly advanced the researches on speech recognition. However, these models often struggle with handling the code-switching setting, which is essential in multilingual speech recognition. Recent studies have attempted to address this setting by separating the modules for different languages to ensure distinct latent representations for languages. Some other methods considered the switching mechanism based on language identification. In this study, a new attention-guided adaptation is proposed to conduct parameter-efficient learning for bilingual ASR. This method selects those attention heads in a model which closely express language identities and then guided those heads to be correctly attended with their corresponding languages. The experiments on the Mandarin-English code-switching speech corpus show that the proposed approach achieves a 14.2% mixed error rate, surpassing state-of-the-art method, where only 5.6% additional parameters over Whisper are trained.
title Attention-Guided Adaptation for Code-Switching Speech Recognition
topic Audio and Speech Processing
Sound
url https://arxiv.org/abs/2312.08856