MUNI-NLP Systems for Lower Sorbian-German and Lower Sorbian-Upper Sorbian Machine Translation @ WMT22

Edoardo Signoroni, Pavel Rychlý


Abstract
We describe our neural machine translation systems for the WMT22 shared task on unsupervised MT and very low resource supervised MT. We submit supervised NMT systems for Lower Sorbian-German and Lower Sorbian-Upper Sorbian translation in both directions. By using a novel tokenization algorithm, data augmentation techniques, such as Data Diversification (DD), and parameter optimization we improve on our baselines by 10.5-10.77 BLEU for Lower Sorbian-German and by 1.52-1.88 BLEU for Lower Sorbian-Upper Sorbian.
Anthology ID:
2022.wmt-1.109
Volume:
Proceedings of the Seventh Conference on Machine Translation (WMT)
Month:
December
Year:
2022
Address:
Abu Dhabi, United Arab Emirates (Hybrid)
Venue:
WMT
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
1111–1116
Language:
URL:
https://aclanthology.org/2022.wmt-1.109
DOI:
Bibkey:
Cite (ACL):
Edoardo Signoroni and Pavel Rychlý. 2022. MUNI-NLP Systems for Lower Sorbian-German and Lower Sorbian-Upper Sorbian Machine Translation @ WMT22. In Proceedings of the Seventh Conference on Machine Translation (WMT), pages 1111–1116, Abu Dhabi, United Arab Emirates (Hybrid). Association for Computational Linguistics.
Cite (Informal):
MUNI-NLP Systems for Lower Sorbian-German and Lower Sorbian-Upper Sorbian Machine Translation @ WMT22 (Signoroni & Rychlý, WMT 2022)
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PDF:
https://preview.aclanthology.org/ingestion-script-update/2022.wmt-1.109.pdf