--- title: "Bettina Messmer — author profile and papers in our library" description: "Bettina Messmer, École Polytechnique Fédérale de Lausanne: 2 papers on Elamur Research (2025–2026), h-index 11 — affiliations, topics…" canonical: "https://research.elamur.ai/free/en/authors/bettina-messmer/" --- [Elamur Research](https://md.research.elamur.ai/free/en/) · [this page in HTML](https://research.elamur.ai/free/en/authors/bettina-messmer/) [home](https://md.research.elamur.ai/free/en/) / [authors](https://md.research.elamur.ai/free/en/authors/) / Bettina Messmer # Bettina Messmer Bettina Messmer has 2 papers in our library, in 2025–2026, most of them on [Language models & pretraining](https://md.research.elamur.ai/free/en/topics/language-models/), [Multilingual & cross-lingual NLP](https://md.research.elamur.ai/free/en/topics/multilingual-nlp/); often with [Alejandro Hernández-Cano](https://md.research.elamur.ai/free/en/authors/alejandro-hernandez-cano/), [Alexander Hägele](https://md.research.elamur.ai/free/en/authors/alexander-hagele/), [Amir Hossein Kargaran](https://md.research.elamur.ai/free/en/authors/amir-hossein-kargaran/). 2 papers in our library · 2025–2026 [OpenAlex](https://openalex.org/A5112925817) · [**h-index 11**](https://openalex.org/authors/A5112925817) · [21 works](https://openalex.org/works?filter=author.id:A5112925817) · [1,051 citations](https://openalex.org/works?filter=author.id:A5112925817&sort=cited_by_count:desc) OpenAlex, 2026-10-14 [📄 2 works in our library](https://md.research.elamur.ai/free/en/authors/bettina-messmer/#papers) · [🔗 Cited 148 times in our library](https://md.research.elamur.ai/free/en/authors/bettina-messmer/cited-by/) · [1 more in our library without a page yet](#also) · [⭐ Paper Stars ranking: #4812](https://md.research.elamur.ai/free/en/paper-stars/page/49/#star-4812) The profile is the library's match of the name; two people with one name are not always told apart. Elsewhere: [Google Scholar](https://scholar.google.com/citations?view_op=search_authors&mauthors=Bettina+Messmer) · [Semantic Scholar](https://www.semanticscholar.org/search?q=Bettina+Messmer) · [dblp](https://dblp.org/search?q=Bettina+Messmer) · [ACL Anthology](https://aclanthology.org/search/?q=Bettina+Messmer) ## Affiliations [🎓**École Polytechnique Fédérale de Lausanne** Lausanne · Switzerland 2023–2026 · 6 papers*current*](https://md.research.elamur.ai/free/en/universities/ecole-polytechnique-federale-de-lausanne/) · [🎓**University of Bern** Bern · Switzerland 1994–2000 · 11 papers](https://md.research.elamur.ai/free/en/universities/university-of-bern/) · [🏢**Swisscom** Bern · Switzerland 1998–2001 · 2 papers](https://ror.org/04t1f4f50) From the bylines of their papers (OpenAlex, 2026-10-14), ORCID and Wikidata; institutions on papers are matched by machine. ## Concepts, shelves and topics Of its works in our library: the number of works on each and its rating among them. 📚 Shelves 5 The field of science this work belongs to (OpenAlex fields).[Arts and Humanities · 2 works](https://md.research.elamur.ai/free/en/shelves/arts-and-humanities/) · [Computer Science · 2 works](https://md.research.elamur.ai/free/en/shelves/computer-science/) · [Artificial Intelligence · 2 works](https://md.research.elamur.ai/free/en/shelves/computer-science/artificial-intelligence/) · [Language and Linguistics · 2 works](https://md.research.elamur.ai/free/en/shelves/arts-and-humanities/language-and-linguistics/) · [Information Systems · 1 work](https://md.research.elamur.ai/free/en/shelves/computer-science/information-systems/) 🧭 Topics 2 Research subjects and languages the work is about.[Language models & pretraining · 2 works](https://md.research.elamur.ai/free/en/topics/language-models/) · [Multilingual & cross-lingual NLP · 1 work](https://md.research.elamur.ai/free/en/topics/multilingual-nlp/) ## Works by year ### 2020s [**2026** 1 paper Bettina Messmer's papers of 2026](https://md.research.elamur.ai/free/en/papers/cano-2026-apertus-democratizing-open-compliant-llms/) · [**2025** 1 paper Bettina Messmer's papers of 2025](https://md.research.elamur.ai/free/en/papers/penedo-2025-fineweb2-one-pipeline-scale-them/) ## Papers The most cited first (OpenAlex and our library). 1. **[FineWeb2: One Pipeline to Scale Them All — Adapting Pre-Training Data Processing to Every Language](https://md.research.elamur.ai/free/en/papers/penedo-2025-fineweb2-one-pipeline-scale-them/)** *(2025 · 97 citations)* Building strong multilingual LLMs is hard mainly because data-cleaning recipes tuned for English do not transfer well. 2. **[Apertus: Democratizing Open and Compliant LLMs for Global Language Environments](https://md.research.elamur.ai/free/en/papers/cano-2026-apertus-democratizing-open-compliant-llms/)** *(2026 · 67 citations)* Most "open" LLMs release only their weights. Their training data stays undisclosed, may ignore content owners' rights, and is heavily skewed toward English and a few high-resource languages. Apertus responds with a fully open suite of 8B and 70B models, both base and Instruct. Pretraining used 15T tokens drawn only… ## All works 3 works of theirs in our library, the most cited first; 2 with a page here, the others link their original until we summarise them. 1. [**FineWeb2: One Pipeline to Scale Them All — Adapting Pre-Training Data Processing to Every Language arXiv:2506.20920**Guilherme Penedo, Hynek Kydliček, Vinko Sabolčec, et al.*2025 · 97 citations*](https://md.research.elamur.ai/free/en/papers/penedo-2025-fineweb2-one-pipeline-scale-them/) 2. **[Apertus: Democratizing Open and Compliant LLMs for Global Language Environments](https://md.research.elamur.ai/free/en/papers/cano-2026-apertus-democratizing-open-compliant-llms/) [Annual Meeting of the Association for Computational Linguistics (ACL)](https://md.research.elamur.ai/free/en/venues/acl/)**Alejandro Hernández-Cano, Alexander Hägele, Allen Hao Huang, et al.*2026 · 67 citations* 3. **[Toward Cross-Lingual Quality Classifiers for Multilingual Pretraining Data Selection ↗](https://arxiv.org/abs/2604.20549) arXiv:2604.20549 · no summary yet**Yassine Turki et al.*2026* ## Co-authors here 11 co-authors with a page, the most papers together first. - [Alejandro Hernández-Cano](https://md.research.elamur.ai/free/en/authors/alejandro-hernandez-cano/) - [Alexander Hägele](https://md.research.elamur.ai/free/en/authors/alexander-hagele/) - [Amir Hossein Kargaran](https://md.research.elamur.ai/free/en/authors/amir-hossein-kargaran/) - [Angelika Romanou](https://md.research.elamur.ai/free/en/authors/angelika-romanou/) - [Colin Raffel](https://md.research.elamur.ai/free/en/authors/colin-raffel/) - [Guilherme Penedo](https://md.research.elamur.ai/free/en/authors/guilherme-penedo/) - [Leandro Von Werra](https://md.research.elamur.ai/free/en/authors/leandro-von-werra/) - [Martin Jaggi](https://md.research.elamur.ai/free/en/authors/martin-jaggi/) - [Mete Ismayilzada](https://md.research.elamur.ai/free/en/authors/mete-ismayilzada/) - [Negar Foroutan](https://md.research.elamur.ai/free/en/authors/negar-foroutan/) - [Thomas Wolf](https://md.research.elamur.ai/free/en/authors/thomas-wolf/) ## Venues Where their works here were published, the most works first, with the editions of those that have a page. - [Annual Meeting of the Association for Computational Linguistics (ACL)](https://md.research.elamur.ai/free/en/venues/acl/): [ACL 2026](https://md.research.elamur.ai/free/en/venues/acl/2026/) ## Cited by Papers of our library cite their works 148 times (of the 141,840 papers whose bibliographies we read); [19 citing papers with a page here →](https://md.research.elamur.ai/free/en/authors/bettina-messmer/cited-by/). Updated 24 October 2026