DonorRank: Donor Language Selection for Low-Resource Cross-Lingual Speech Recognition
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Computer Science > Computation and Language
Title:DonorRank: Donor Language Selection for Low-Resource Cross-Lingual Speech Recognition
Abstract:Low-resource automatic speech recognition (ASR) commonly relies on cross-lingual transfer, where models are adapted from higher-resource donor languages. However, selecting donors remains challenging for spontaneous speech from under-resourced language communities, due to linguistic variation, evolving orthographic conventions, and uneven resource availability. We present DonorRank, a learning-to-rank framework for predicting effective donor languages for zero-shot ASR. We evaluate DonorRank on two multilingual speech corpora of Indic and African language families. It accurately predicts donor language rankings and improves donor selection over common heuristics based on genetic similarity or high-resource languages. Beyond improving transfer, we show how DonorRank is a general framework for analyzing donor language selection itself. Our analyses show that the composition of the donor set determines which linguistic cues are useful in predicting successful transfer. We also identify transfer patterns that provide practical guidance for multilingual ASR in low-resource settings.
| Comments: | 11 pages, 4 figures, 12 tables |
| Subjects: | Computation and Language (cs.CL) |
| ACM classes: | I.2.7 |
| Cite as: | arXiv:2608.11441 [cs.CL] |
| (or arXiv:2608.11441v1 [cs.CL] for this version) | |
| https://doi.org/10.48550/arXiv.2608.11441
arXiv-issued DOI via DataCite (pending registration)
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