collaborators

5 papers

cs.CL2026

HPLT 3.0: Very Large-Scale Multilingual Resources for LLMs and MT. Mono- and Bi-lingual Data, Multilingual Evaluation, and Pre-Trained Models

Stephan Oepen, Nikolay Arefev, Mikko Aulamo +29

We present an ongoing initiative to provide open, very large, high-quality, and richly annotated textual datasets for almost 200 languages. At 30 trillion tokens, this is likely th…

cs.CL2025

EMMA-500: Enhancing Massively Multilingual Adaptation of Large Language Models

Shaoxiong Ji, Zihao Li, Jaakko Paavola +7

In this work, we introduce EMMA-500, a large-scale multilingual language model continue-trained on texts across 546 languages designed for enhanced multilingual performance, focusi…

cs.AI2025

MatheMagic: Generating Dynamic Mathematics Benchmarks Robust to Memorization

Dayyán O'Brien, Barry Haddow, Emily Allaway +1

Conducting contamination-free evaluation of mathematical capabilities can be difficult for two reasons: models may memorize a test set once it is made public, and current mathemati…

cs.CL2025

DocHPLT: A Massively Multilingual Document-Level Translation Dataset

Dayyán O'Brien, Bhavitvya Malik, Ona de Gibert +3

Existing document-level machine translation resources are only available for a handful of languages, mostly high-resourced ones. To facilitate the training and evaluation of docume…

cs.CL2025

An Expanded Massive Multilingual Dataset for High-Performance Language Technologies (HPLT)

Laurie Burchell, Ona de Gibert, Nikolay Arefyev +32

Training state-of-the-art large language models requires vast amounts of clean and diverse textual data. However, building suitable multilingual datasets remains a challenge. In th…