--- title: "Barry O'Sullivan — author profile and papers — Elamur Research" description: "Barry O'Sullivan, University College Cork: 5 papers on Elamur Research (2024–2026), h-index 1 — affiliations, topics, co-authors and who…" canonical: "https://research.elamur.ai/free/en/authors/barry-o-sullivan/" --- [Elamur Research](https://md.research.elamur.ai/free/en/) · [this page in HTML](https://research.elamur.ai/free/en/authors/barry-o-sullivan/) [home](https://md.research.elamur.ai/free/en/) / [authors](https://md.research.elamur.ai/free/en/authors/) / Barry O'Sullivan # Barry O'Sullivan Barry O'Sullivan has 5 papers in our library, in 2024–2026, 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/), [Evaluation & benchmarks](https://md.research.elamur.ai/free/en/topics/evaluation-benchmarks/); often with [Hoang D. Nguyen](https://md.research.elamur.ai/free/en/authors/hoang-d-nguyen/), [Khanh-Tung Tran](https://md.research.elamur.ai/free/en/authors/khanh-tung-tran/), [Dung Dao](https://md.research.elamur.ai/free/en/authors/dung-dao/). 5 papers in our library · 2024–2026 [OpenAlex](https://openalex.org/A5125173385) · [**h-index 1**](https://openalex.org/authors/A5125173385) · [9 works](https://openalex.org/works?filter=author.id:A5125173385) · [4 citations](https://openalex.org/works?filter=author.id:A5125173385&sort=cited_by_count:desc) OpenAlex, 2026-10-14 [📄 5 works in our library](https://md.research.elamur.ai/free/en/authors/barry-o-sullivan/#papers) · [🔗 Cited 81 times in our library](https://md.research.elamur.ai/free/en/authors/barry-o-sullivan/cited-by/) · [⭐ Paper Stars ranking: #7729](https://md.research.elamur.ai/free/en/paper-stars/page/78/#star-7729) 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=Barry+O%27Sullivan) · [Semantic Scholar](https://www.semanticscholar.org/search?q=Barry+O%27Sullivan) · [dblp](https://dblp.org/search?q=Barry+O%27Sullivan) · [ACL Anthology](https://aclanthology.org/search/?q=Barry+O%27Sullivan) ## Affiliations [🎓**University College Cork** Cork · Ireland 2026 · 2 papers*current*](https://md.research.elamur.ai/free/en/universities/university-college-cork/) 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 7 The field of science this work belongs to (OpenAlex fields).[Computer Science · 5 works](https://md.research.elamur.ai/free/en/shelves/computer-science/) · [Artificial Intelligence · 5 works](https://md.research.elamur.ai/free/en/shelves/computer-science/artificial-intelligence/) · [Computer Networks and Communications · 1 work](https://md.research.elamur.ai/free/en/shelves/computer-science/computer-networks-and-communications/) · [Arts and Humanities · 4 works](https://md.research.elamur.ai/free/en/shelves/arts-and-humanities/) · [Language and Linguistics · 4 works](https://md.research.elamur.ai/free/en/shelves/arts-and-humanities/language-and-linguistics/) · [Social Sciences · 1 work](https://md.research.elamur.ai/free/en/shelves/social-sciences/) · [Sociology and Political Science · 1 work](https://md.research.elamur.ai/free/en/shelves/social-sciences/sociology-and-political-science/) 🧭 Topics 3 Research subjects and languages the work is about.[Language models & pretraining · 3 works](https://md.research.elamur.ai/free/en/topics/language-models/) · [Evaluation & benchmarks · 1 work](https://md.research.elamur.ai/free/en/topics/evaluation-benchmarks/) · [Multilingual & cross-lingual NLP · 1 work](https://md.research.elamur.ai/free/en/topics/multilingual-nlp/) ## Works by year ### 2020s [**2026** 3 papers](https://md.research.elamur.ai/free/en/authors/barry-o-sullivan/year/2026/) · [**2025** 1 paper](https://md.research.elamur.ai/free/en/authors/barry-o-sullivan/year/2025/) · [**2024** 1 paper](https://md.research.elamur.ai/free/en/authors/barry-o-sullivan/year/2024/) ## Papers The most cited first (OpenAlex and our library). 1. **[Multi-Agent Collaboration Mechanisms: A Survey of LLMs](https://md.research.elamur.ai/free/en/papers/tran-2025-multi-agent-collaboration-mechanisms/)** *(2025 · 95 citations)* Large language models still hallucinate, struggle with slow, deliberate reasoning and run into scaling limits. 2. **[UCCIX: Irish-eXcellence Large Language Model](https://md.research.elamur.ai/free/en/papers/tran-2024-uccix-irish-excellence-large-language/)** *(2024 · 14 citations)* Irish is a UNESCO "definitely endangered" language with only a few hundred million tokens of available text, far below what scaling laws suggest for training an LLM. 3. **[Disentangling Continued Pre-Training: Attention-Driven Routing and Semantic Hub Preservation in Language Adaptation](https://md.research.elamur.ai/free/en/papers/tran-2026-disentangling-continued-pre-training-attention/)** *(2026 · 1 citation)* The paper examines what happens inside an LLM during Continued Pre-Training (CPT), the process that teaches it a second language. The authors trace the full training trajectory instead of only the final checkpoint. They use English as the base language and three targets: Irish, Basque, and Chinese. The models are: 4. **[LaCoMSA: Language-Consistency Multilingual Self-Alignment with Latent Representation Rewarding](https://md.research.elamur.ai/free/en/papers/tran-2026-lacomsa-language-consistency-multilingual-self/)** *(2026)* Multilingual LLMs tend to answer worse in lower-resource languages than in English. They also often switch into English even when prompted in another language. Earlier preference-optimization fixes such as MAPO, LIDR and ICR depend on outside supervision, such as translation systems or English-trained reward models. 5. **[Questionnaire Meets LLM: A Benchmark and Empirical Study of Structural Skills for Understanding Questions and Responses](https://md.research.elamur.ai/free/en/papers/nguyen-2026-questionnaire-meets-llm-benchmark-empirical/)** *(2026)* Survey data is a grid of respondents by questions. It is hard for LLMs because cells mix types such as Likert scores, coded multiple-choice options and free text, and answer codes must be decoded through schema metadata. Practitioners also have no evidence on how to turn such data into text for a model. The authors… ## Co-authors here 3 co-authors with a page, the most papers together first. - [Hoang D. Nguyen](https://md.research.elamur.ai/free/en/authors/hoang-d-nguyen/) ×5 - [Khanh-Tung Tran](https://md.research.elamur.ai/free/en/authors/khanh-tung-tran/) ×4 - [Dung Dao](https://md.research.elamur.ai/free/en/authors/dung-dao/) ## Venues Where their works here were published, the most works first, with the editions of those that have a page. - [Conference of the European Chapter of the Association for Computational Linguistics (EACL)](https://md.research.elamur.ai/free/en/venues/eacl/): [EACL 2026](https://md.research.elamur.ai/free/en/venues/eacl/2026/) - [Findings of the Association for Computational Linguistics](https://md.research.elamur.ai/free/en/venues/findings/): [Findings of the Association for Computational Linguistics 2026](https://md.research.elamur.ai/free/en/venues/findings/2026/) - [Frontiers in artificial intelligence and applications](https://md.research.elamur.ai/free/en/venues/frontiers-in-artificial-intelligence-and-applications/): [Frontiers in artificial intelligence and applications 2024](https://md.research.elamur.ai/free/en/venues/frontiers-in-artificial-intelligence-and-applications/2024/) - [Language Resources and Evaluation Conference (LREC)](https://md.research.elamur.ai/free/en/venues/lrec/): [LREC 2026](https://md.research.elamur.ai/free/en/venues/lrec/2026/) ## Cited by Papers of our library cite their works 81 times (of the 149,439 papers whose bibliographies we read); [24 citing papers with a page here →](https://md.research.elamur.ai/free/en/authors/barry-o-sullivan/cited-by/). Updated 2 November 2026