Improving low-resource ASR using bilingual fine-tuning with language identification: a cross-linguistic evaluation
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Computer Science > Computation and Language
Title:Improving low-resource ASR using bilingual fine-tuning with language identification: a cross-linguistic evaluation
Abstract:This study explores how bilingual fine-tuning affects automatic speech recognition (ASR) in low-resource languages. We evaluate this method across nine linguistically and geographically diverse language pairs, covering a range of language families and writing systems. To distinguish the two languages, during training, we pre-pend each input text with a language identification token. At inference, the model jointly predicts both the language and transcription from the speech input alone. As texts for which the language is incorrectly determined show low ASR performance, we also conduct a follow-up experiment in which the language identification token is provided both during training and inference. Our results show that bilingual fine-tuning can be beneficial when language identification accuracy is high, and that in cases where language identification performance is low, including the language identification token at inference helps to improve ASR performance.
| Subjects: | Computation and Language (cs.CL) |
| Cite as: | arXiv:2606.17820 [cs.CL] |
| (or arXiv:2606.17820v1 [cs.CL] for this version) | |
| https://doi.org/10.48550/arXiv.2606.17820
arXiv-issued DOI via DataCite (pending registration)
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