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Gema Ramírez-Sánchez

5 accepted papers

2025

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

ACL 2025long

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 this work, we present HPLT v2, a collection of high-quality multilingual monolingual and parallel corpora, extending prior…

2025

Quality Beyond A Glance: Revealing Large Quality Differences Between Web-Crawled Parallel Corpora

COLING 2025main

Parallel corpora play a vital role in advanced multilingual natural language processing tasks, notably in machine translation (MT). The recent emergence of numerous large parallel corpora, often extracted from multilingual documents on the Internet, has expanded the available resources. Nevertheless…

2024

A New Massive Multilingual Dataset for High-Performance Language Technologies

COLING 2024main

We present the HPLT (High Performance Language Technologies) language resources, a new massive multilingual dataset including both monolingual and bilingual corpora extracted from CommonCrawl and previously unused web crawls from the Internet Archive. We describe our methods for data acquisition, ma…

2024

Do Language Models Care about Text Quality? Evaluating Web-Crawled Corpora across 11 Languages

COLING 2024main

Large, curated, web-crawled corpora play a vital role in training language models (LMs). They form the lion’s share of the training data in virtually all recent LMs, such as the well-known GPT, LLaMA and XLM-RoBERTa models. However, despite this importance, relatively little attention has been given…

2024

FastSpell: The LangId Magic Spell

COLING 2024main

Language identification is a crucial component in the automated production of language resources, particularly in multilingual and big data contexts. However, commonly used language identifiers struggle to differentiate between similar or closely-related languages. This paper introduces FastSpell, a…