Barry O'Sullivan
Barry O'Sullivan has 4 papers in our library, in 2024–2026, most of them on Language models & pretraining, Multilingual & cross-lingual NLP, Evaluation & benchmarks; often with Hoang D. Nguyen, Khanh-Tung Tran.
OpenAlex · h-index 1 · 9 works · 4 citations OpenAlex, 2026-10-14
📄 4 works in our library · 🔗 Cited 13 times in our library · ⭐ Paper Stars ranking: #9422
Affiliations
Fields, topics and concepts
📚 Shelves 6The field of science this work belongs to (OpenAlex fields).Artificial Intelligence · 4 worksArts and Humanities · 4 worksComputer Science · 4 worksLanguage and Linguistics · 4 worksSocial Sciences · 1 workSociology and Political Science · 1 work
🧭 Topics 3Research subjects and languages the work is about.Language models & pretraining · 3 worksEvaluation & benchmarks · 1 workMultilingual & cross-lingual NLP · 1 work
Works by year
2020s
Papers
- UCCIX: Irish-eXcellence Large Language Model (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. - Disentangling Continued Pre-Training: Attention-Driven Routing and Semantic Hub Preservation in Language Adaptation (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: - LaCoMSA: Language-Consistency Multilingual Self-Alignment with Latent Representation Rewarding (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. - Questionnaire Meets LLM: A Benchmark and Empirical Study of Structural Skills for Understanding Questions and Responses (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
Venues
- Conference of the European Chapter of the Association for Computational Linguistics (EACL): EACL 2026
- Findings of the Association for Computational Linguistics: Findings of the Association for Computational Linguistics 2026
- Frontiers in artificial intelligence and applications: Frontiers in artificial intelligence and applications 2024
- Language Resources and Evaluation Conference (LREC): LREC 2026
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