STaR-MT: Select, Translate, and Revise Pipeline for Terminology Aware Machine Translation

Guilherme Marchetti, Gil Rocha, Henrique Lopes Cardoso, Rui Sousa-Silva


Abstract
To assess the progress in terminology-aware machine translation, the Terminology Shared Task is hosted alongside the Conference on Machine Translation (WMT). In this paper, we describe our submission to the shared task: STaR-MT. This is a three-step pipeline composed of (S)election, (T)ranslation, (a)nd (R)evision, focused on terminology-aware machine translation (MT). Our methodology adopts a lightweight agent-based design that selects relevant entries or examples and presents them to the translation agent, which uses a general-purpose LLM with a large context window to produce the initial output. Next, the revision agent uses language-specific models to improve translation quality for selected target languages. Experiments on the FLORES+ dataset with different model sizes in the pipeline suggest that machine translation pipelines can benefit from combining large general-purpose translation models with smaller, language-specific revision models, at least in some language pairs. While simple in architecture, this approach allows us to generate translations at the document level, with no need for pre-processing or paragraph splitting, and with minimal errors across most languages.
Anthology ID:
2026.wmt-main.118
Volume:
Proceedings of the Eleventh Conference on Machine Translation
Month:
October
Year:
2026
Address:
Budapest, Hungary
Editors:
Barry Haddow, Tom Kocmi, Philipp Koehn, Christof Monz
Venues:
WMT | WS
SIG:
SIGMT
Publisher:
Association for Computational Linguistics
Note:
Pages:
1830–1839
Language:
URL:
https://aclanthology.org/2026.wmt-main.118/
DOI:
Bibkey:
Cite (ACL):
Guilherme Marchetti, Gil Rocha, Henrique Lopes Cardoso, and Rui Sousa-Silva. 2026. STaR-MT: Select, Translate, and Revise Pipeline for Terminology Aware Machine Translation. In Proceedings of the Eleventh Conference on Machine Translation, pages 1830–1839, Budapest, Hungary. Association for Computational Linguistics.
Cite (Informal):
STaR-MT: Select, Translate, and Revise Pipeline for Terminology Aware Machine Translation (Marchetti et al., WMT 2026)
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PDF:
https://aclanthology.org/2026.wmt-main.118.pdf