--- title: "Mateusz Lango · Charles University — author profile and papers" description: "Mateusz Lango, Charles University: 2 papers on Elamur Research (2024–2026), h-index 10 — affiliations, topics, co-authors and who cites…" canonical: "https://research.elamur.ai/free/en/authors/mateusz-lango/" --- [Elamur Research](https://md.research.elamur.ai/free/en/) · [this page in HTML](https://research.elamur.ai/free/en/authors/mateusz-lango/) [home](https://md.research.elamur.ai/free/en/) / [authors](https://md.research.elamur.ai/free/en/authors/) / Mateusz Lango # Mateusz Lango Mateusz Lango has 2 papers in our library, in 2024–2026, most of them on [Language models & pretraining](https://md.research.elamur.ai/free/en/topics/language-models/), [Text generation](https://md.research.elamur.ai/free/en/topics/text-generation/), [Evaluation & benchmarks](https://md.research.elamur.ai/free/en/topics/evaluation-benchmarks/); often with [Ondřej Dušek](https://md.research.elamur.ai/free/en/authors/ondrej-dusek/), [Patrícia Schmidtová](https://md.research.elamur.ai/free/en/authors/patricia-schmidtova/), [Simone Balloccu](https://md.research.elamur.ai/free/en/authors/simone-balloccu/). 2 papers in our library · 2024–2026 [OpenAlex](https://openalex.org/A5062872821) · [ORCID](https://orcid.org/0000-0003-2881-5642) · [**h-index 10**](https://openalex.org/authors/A5062872821) · [82 works](https://openalex.org/works?filter=author.id:A5062872821) · [548 citations](https://openalex.org/works?filter=author.id:A5062872821&sort=cited_by_count:desc) OpenAlex, 2026-10-14 [📄 2 works in our library](https://md.research.elamur.ai/free/en/authors/mateusz-lango/#papers) · [🔗 Cited 130 times in our library](https://md.research.elamur.ai/free/en/authors/mateusz-lango/cited-by/) · [4 more in our library without a page yet](#also) · [⭐ Paper Stars ranking: #5929](https://md.research.elamur.ai/free/en/paper-stars/page/60/#star-5929) 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=Mateusz+Lango) · [Semantic Scholar](https://www.semanticscholar.org/search?q=Mateusz+Lango) · [dblp](https://dblp.org/search?q=Mateusz+Lango) · [ACL Anthology](https://aclanthology.org/search/?q=Mateusz+Lango) ## Affiliations [🎓**Charles University** Prague · Czechia 2018–2026 · 44 papers*current*](https://md.research.elamur.ai/free/en/universities/charles-university/) · [🎓**Poznań University of Technology** Poznan · Poland 2016–2026 · 40 papers*current*](https://md.research.elamur.ai/free/en/universities/poznan-university-of-technology/) From the bylines of their papers (OpenAlex, 2026-10-14), ORCID and Wikidata; institutions on papers are matched by machine. ## Fields, topics and concepts Of its works in our library, with the number of works on each. 📚 Shelves 5 The field of science this work belongs to (OpenAlex fields).[Artificial Intelligence · 2 works](https://md.research.elamur.ai/free/en/shelves/computer-science/artificial-intelligence/) · [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/) · [Language and Linguistics · 2 works](https://md.research.elamur.ai/free/en/shelves/arts-and-humanities/language-and-linguistics/) · [Computer Vision and Pattern Recognition · 1 work](https://md.research.elamur.ai/free/en/shelves/computer-science/computer-vision-and-pattern-recognition/) 🧭 Topics 3 Research subjects and languages the work is about.[Evaluation & benchmarks · 1 work](https://md.research.elamur.ai/free/en/topics/evaluation-benchmarks/) · [Language models & pretraining · 1 work](https://md.research.elamur.ai/free/en/topics/language-models/) · [Text generation · 1 work](https://md.research.elamur.ai/free/en/topics/text-generation/) ## Works by year ### 2020s [**2026** 1 paper](https://md.research.elamur.ai/free/en/authors/mateusz-lango/year/2026/) · [**2024** 1 paper](https://md.research.elamur.ai/free/en/authors/mateusz-lango/year/2024/) ## Papers The most cited first (OpenAlex and our library). 1. **[Leak, Cheat, Repeat: Data Contamination and Evaluation Malpractices in Closed-Source LLMs](https://md.research.elamur.ai/free/en/papers/balloccu-2024-leak-cheat-repeat-data-contamination/)** *(2024 · 174 citations)* The authors study how test data ends up in closed LLMs (data contamination). They separately examine a phenomenon they call indirect data leakage. When researchers evaluate GPT-3.5 and GPT-4 through ChatGPT, benchmark examples may become training material for subsequent versions of the model. Existing contamination… 2. **[One-step Nonautoregressive Natural Language Generation with Shortcut Flow Matching Models](https://md.research.elamur.ai/free/en/papers/warczynski-2026-one-step-nonautoregressive-natural-language/)** *(2026)* Diffusion-style non-autoregressive (NAR) text generators can in principle decode all tokens in parallel. In practice they need many denoising iterations, and their quality collapses when the iteration count is cut drastically. Flow-matching models also lose much of their quality when restricted to one step. The… ## All works 6 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. **[Leak, Cheat, Repeat: Data Contamination and Evaluation Malpractices in Closed-Source LLMs](https://md.research.elamur.ai/free/en/papers/balloccu-2024-leak-cheat-repeat-data-contamination/) [Conference of the European Chapter of the Association for Computational Linguistics (EACL)](https://md.research.elamur.ai/free/en/venues/eacl/)**Simone Balloccu, Patrícia Schmidtová, Mateusz Lango, et al.*2024 · 174 citations* 2. **[A Survey of Text Style Transfer: Applications and Ethical Implications ↗](https://arxiv.org/abs/2407.16737) arXiv:2407.16737 · no summary yet**Sourabrata Mukherjee et al.*2024 · 6 citations* 3. **[With a Little Help from the Authors: Reproducing Human Evaluation of an MT Error Detector ↗](https://aclanthology.org/2023.humeval-1.13/) Proceedings of the 3rd Workshop on Human Evaluation of NLP Systems · no summary yet**Ondrej Platek, Mateusz Lango, Ondrej Dusek*2023 · 3 citations* 4. **[LLM Agents Implement an NLG System from Scratch: Building Interpretable Rule-Based RDF-to-Text Generators ↗](https://aclanthology.org/2025.emnlp-industry.142/) Proceedings of the 2025 Conference on Empirical Methods in Natural Language Processing: Industry Track · no summary yet**Mateusz Lango, Ondrej Dusek*2025 · 2 citations* 5. **[One-step Nonautoregressive Natural Language Generation with Shortcut Flow Matching Models](https://md.research.elamur.ai/free/en/papers/warczynski-2026-one-step-nonautoregressive-natural-language/) [Annual Meeting of the Association for Computational Linguistics (ACL)](https://md.research.elamur.ai/free/en/venues/acl/)**Jędrzej Warczyński, Ondrej Dusek, Mateusz Lango*2026* 6. **[Last Translation Benchmark ↗](https://arxiv.org/abs/2609.04173) arXiv:2609.04173 · no summary yet**Vilem Zouhar et al.*2026* ## Co-authors here 3 co-authors with a page, the most papers together first. - [Ondřej Dušek](https://md.research.elamur.ai/free/en/authors/ondrej-dusek/) ×2 - [Patrícia Schmidtová](https://md.research.elamur.ai/free/en/authors/patricia-schmidtova/) - [Simone Balloccu](https://md.research.elamur.ai/free/en/authors/simone-balloccu/) ## 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/) - [Conference of the European Chapter of the Association for Computational Linguistics (EACL)](https://md.research.elamur.ai/free/en/venues/eacl/): [EACL 2024](https://md.research.elamur.ai/free/en/venues/eacl/2024/) - Proceedings of the 2025 Conference on Empirical Methods in Natural Language Processing: Industry Track - Proceedings of the 3rd Workshop on Human Evaluation of NLP Systems ## Cited by Papers of our library cite their works 130 times (of the 149,439 papers whose bibliographies we read); [28 citing papers with a page here →](https://md.research.elamur.ai/free/en/authors/mateusz-lango/cited-by/). Updated 1 November 2026