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Cross-modal Contrastive Learning for Speech Translation

2022-05-05 05:14:01
Rong Ye, Mingxuan Wang, Lei Li
arXiv_CL
       
Abstract

How can we learn unified representations for spoken utterances and their written text? Learning similar representations for semantically similar speech and text is important for speech translation. To this end, we propose ConST, a cross-modal contrastive learning method for end-to-end speech-to-text translation. We evaluate ConST and a variety of previous baselines on a popular benchmark MuST-C. Experiments show that the proposed ConST consistently outperforms the previous methods on, and achieves an average BLEU of 29.4. The analysis further verifies that ConST indeed closes the representation gap of different modalities -- its learned representation improves the accuracy of cross-modal speech-text retrieval from 4% to 88%. Code and models are available at this https URL.

Abstract (translated)

URL

https://arxiv.org/abs/2205.02444

PDF

https://arxiv.org/pdf/2205.02444.pdf

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