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HPLT/
translate-en-cy-v2.0-hplt_opus

translation

2503.10267

cc-by-4.0

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HPLT MT release v2.0

This repository contains the English-Welsh (en->cy) encoder-decoder translation model trained on HPLT v2.0 and OPUS parallel data. The model is currently available in Marian format and we are working on converting it to the Hugging Face format.

Model Info

Source language: English
Target language: Welsh
Data: HPLT v2.0 and OPUS parallel data
Model architecture: Transformer-base
Tokenizer: SentencePiece (Unigram)

You can check out our paper, GitHub repository, or website for more details.

Usage

The model has been trained with MarianNMT and the weights are in the Marian format.

Using Marian

To run inference with MarianNMT, refer to the Inference/Decoding/Translation section of our GitHub repository. You will need the model file model.npz.best-chrf.npz and the vocabulary file model.en-cy.spm from this repository.

Using transformers

We are working on this.

Acknowledgements

This project has received funding from the European Union's Horizon Europe research and innovation programme under grant agreement No 101070350 and from UK Research and Innovation (UKRI) under the UK government's Horizon Europe funding guarantee [grant number 10052546]

Citation

If you find this model useful, please cite the following paper:

bibtex

@article{hpltv2,
    title={An Expanded Massive Multilingual Dataset for High-Performance Language Technologies}, 
    author={Laurie Burchell and Ona de Gibert and Nikolay Arefyev and Mikko Aulamo and Marta Bañón and Pinzhen Chen and Mariia Fedorova and Liane Guillou and Barry Haddow and Jan Hajič and Jindřich Helcl and Erik Henriksson and Mateusz Klimaszewski and Ville Komulainen and Andrey Kutuzov and Joona Kytöniemi and Veronika Laippala and Petter Mæhlum and Bhavitvya Malik and Farrokh Mehryary and Vladislav Mikhailov and Nikita Moghe and Amanda Myntti and Dayyán O'Brien and Stephan Oepen and Proyag Pal and Jousia Piha and Sampo Pyysalo and Gema Ramírez-Sánchez and David Samuel and Pavel Stepachev and Jörg Tiedemann and Dušan Variš and Tereza Vojtěchová and Jaume Zaragoza-Bernabeu},
    journal={arXiv preprint arXiv:2503.10267},
    year={2025},
    url={https://arxiv.org/abs/2503.10267}, 
}

HPLT/translate-en-cy-v2.0-hplt_opus