JHU IWSLT 2025 Low-resource System Description

Nathaniel Romney Robinson, Niyati Bafna, Xiluo He, Tom Lupicki, Lavanya Shankar, Cihan Xiao, Qi Sun, Kenton Murray, David Yarowsky


Abstract
We present the Johns Hopkins University’s submission to the 2025 IWSLT Low-Resource Task. We competed on all 10 language pairs. Our approach centers around ensembling methods – specifically Minimum Bayes Risk Decoding. We find that such ensembling often improves performance only slightly over the best performing stand-alone model, and that in some cases it can even hurt performance slightly.
Anthology ID:
2025.iwslt-1.32
Volume:
Proceedings of the 22nd International Conference on Spoken Language Translation (IWSLT 2025)
Month:
July
Year:
2025
Address:
Vienna, Austria (in-person and online)
Editors:
Elizabeth Salesky, Marcello Federico, Antonis Anastasopoulos
Venues:
IWSLT | WS
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
315–323
Language:
URL:
https://preview.aclanthology.org/acl25-workshop-ingestion/2025.iwslt-1.32/
DOI:
Bibkey:
Cite (ACL):
Nathaniel Romney Robinson, Niyati Bafna, Xiluo He, Tom Lupicki, Lavanya Shankar, Cihan Xiao, Qi Sun, Kenton Murray, and David Yarowsky. 2025. JHU IWSLT 2025 Low-resource System Description. In Proceedings of the 22nd International Conference on Spoken Language Translation (IWSLT 2025), pages 315–323, Vienna, Austria (in-person and online). Association for Computational Linguistics.
Cite (Informal):
JHU IWSLT 2025 Low-resource System Description (Romney Robinson et al., IWSLT 2025)
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PDF:
https://preview.aclanthology.org/acl25-workshop-ingestion/2025.iwslt-1.32.pdf