CHAPTER: Exploiting Convolutional Neural Network Adapters for Self-supervised Speech Models

• URL: http://arxiv.org/abs/2212.01282v1
• Date: Thu, 1 Dec 2022 08:50:12 GMT
• Title: CHAPTER: Exploiting Convolutional Neural Network Adapters for Self-supervised Speech Models
• Authors: Zih-Ching Chen, Yu-Shun Sung, Hung-yi Lee
• Abstract summary: Self-supervised learning (SSL) is a powerful technique for learning representations from unlabeled data. We propose an efficient tuning method specifically designed for SSL speech model, by applying CNN adapters at the feature extractor. We empirically found that adding CNN to the feature extractor can help the adaptation on emotion and speaker tasks.
• Score: 62.60723685118747
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Self-supervised learning (SSL) is a powerful technique for learning representations from unlabeled data. Transformer based models such as HuBERT, which consist a feature extractor and transformer layers, are leading the field in the speech domain. SSL models are fine-tuned on a wide range of downstream tasks, which involves re-training the majority of the model for each task. Previous studies have introduced applying adapters, which are small lightweight modules commonly used in Natural Language Processing (NLP) to adapt pre-trained models to new tasks. However, such efficient tuning techniques only provide adaptation at the transformer layer, but failed to perform adaptation at the feature extractor. In this paper, we propose CHAPTER, an efficient tuning method specifically designed for SSL speech model, by applying CNN adapters at the feature extractor. Using this method, we can only fine-tune fewer than 5% of parameters per task compared to fully fine-tuning and achieve better and more stable performance. We empirically found that adding CNN adapters to the feature extractor can help the adaptation on emotion and speaker tasks. For instance, the accuracy of SID is improved from 87.71 to 91.56, and the accuracy of ER is improved by 5%.

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