Oscar Sainz

Postdoctoral Researcher in NLP

HiTZ Center - Ixa NLP Group
University of the Basque Country (UPV/EHU)

Computer Science Faculty, UPV/EHU

About Me

I am a postdoctoral researcher at the University of the Basque Country in the HiTZ center and IXA group. My research interests are focused on low-resource scenarios and particularly on low-resource Information Extraction.

I obtained my PhD at the University of the Basque Country in 2024, where I worked on zero and few-shot Information Extraction using entailment models and making LLMs learn to follow annotation guidelines.

Research Interests

Low-Resource NLP Information Extraction Large Language Models Cross-lingual Evaluation Basque NLP Data Contamination

Activities

Co-organizer of The First Data Contamination Workshop (CONDA)
4 months visiting researcher (Sep-Dec 2024) at LMU Munich with Prof. Dr. Hinrich Schütze
Active reviewer for ML and NLP conferences: ICLR, *ACL (ARR), EMNLP, LREC, COLING since 2021

Grants & Awards

Best Thesis Award by AEPIA (Spanish Association for AI), 2025
Best Resource Paper Award at ACL 2024
Best Reviewer Award at EMNLP 2023 (Information Extraction track)
Predoc-berri PhD Grant by the Basque Government
IKASIKER collaboration grant by the Basque Government

Students & Interns

PhD Students

Mikel Zubillaga (2024-present)

Master's Students

Ignacio Talavera (2025): Synthetic Data Generation for Sentence-level and Paragraph-level Closed Information Extraction

Undergraduate Students

Mikel Zubillaga (2023): Hizkuntzen arteko transferentzia analisia Euskarazko Informazio-Erauzketan

Interns

Yago Molina (2025)
Neil de la Fuente (2024)

Featured Publications

For more, visit my Google Scholar or Semantic Scholar page.

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