Attention-Based Adaptive Policies for Simultaneous Speech-to-Text Translation
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Computer Science > Machine Learning
Title:Attention-Based Adaptive Policies for Simultaneous Speech-to-Text Translation
Abstract:Simultaneous speech-to-text translation (Simul-S2TT) consists of generating partial translations while the incoming audio frames are processed by the system. However, the streaming nature of this setup creates the challenge of deciding the best moment to perform an accurate translation while minimizing the delay. To address this challenge, we utilize the cross-attention mechanism of the encoder-decoder architecture to find the right alignment between the input speech frames and the target text tokens. In this paper, we propose the Recent Frame Attention Policy (RFAP) and the Dual-Condition Attention Policy (DCAP) that allow offline trained speech-to-text translation models to be used in streaming scenarios without requiring additional training. Results on three different language translation pairs over the CVSS-C corpus show that the RFAP is able to surpass other policies with gains of up to 4.0 BLEU while reducing the translation delay by almost 1 second. Moreover, the DCAP is able to preserve a high translation quality when the latency is very low.
| Comments: | Submitted to ICASSP 2027 |
| Subjects: | Machine Learning (cs.LG) |
| Cite as: | arXiv:2609.30839 [cs.LG] |
| (or arXiv:2609.30839v1 [cs.LG] for this version) | |
| https://doi.org/10.48550/arXiv.2609.30839
arXiv-issued DOI via DataCite (pending registration)
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