The University of Melbourne WMT 2026 CreoleMT Submission: A Domain-Balanced Approach to Low-Resource Pacific Creole Machine Translation
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Computer Science > Computation and Language
arXiv:2609.13615 (cs)
[Submitted on 12 Sep 2026]
Title:The University of Melbourne WMT 2026 CreoleMT Submission: A Domain-Balanced Approach to Low-Resource Pacific Creole Machine Translation
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Abstract:For our submission to the WMT26 Creole Language Translation Shared Task, we focus on machine translation (MT) models for Pacific creoles: Tok Pisin, Bislama, and Solomon Pijin, with particular attention to broad domain performance. After pre-training on a large collection of domain-imbalanced data, we continue fine-tuning on a diverse mix of domain-balanced data. We rely on a number of data collection and preparation techniques, including LLM-assisted respelling and alignment, back-translation, and distillation from Gemini for domains originally not present in training data. Evaluated on Bouquet and a novel test set made of spoken language transcripts, our models beat open model baselines by 3+ chrF++ points in all directions with human-original references. Looking ahead, we plan to develop human-translated test sets for Solomon Pijin and Bislama, and to distil our best models into much smaller ones that retain broad domain coverage.
| Subjects: | Computation and Language (cs.CL) |
| Cite as: | arXiv:2609.13615 [cs.CL] |
| (or arXiv:2609.13615v1 [cs.CL] for this version) | |
| https://doi.org/10.48550/arXiv.2609.13615
arXiv-issued DOI via DataCite (pending registration)
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View a PDF of the paper titled The University of Melbourne WMT 2026 CreoleMT Submission: A Domain-Balanced Approach to Low-Resource Pacific Creole Machine Translation, by Rapha\"el Merx and 2 other authors
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