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I am a Maître de Conférences (~associate professor) at INSA Rennes. I conduct my research in the Linkmedia team of Irisa.

My research focuses on Natural Language Processing and Machine Learning. My work can be summed up as the development of novel (combinatorial) algorithms and novel learning methods for structured prediction. Lately, I've been increasingly interested in the use of machine learning for research in linguistics (or, in other words, AI for science).

Selected Works

Check the papers page for a complete list of publications.

KAD: A Framework for Proxy-based Test-time Alignment with Knapsack Approximation Deferral

Ayoub Hammal, Pierre Zweigenbaum, Caio Corro
EACL 2026 - European Chapter of the Association for Computational Linguistics
preprint - code

Bregman Conditional Random Fields: Sequence Labeling with Parallelizable Inference Algorithms

Caio Corro, Mathieu Lacroix, Joseph Le Roux
ACL 2025 - Annual Meeting of the Association for Computational Linguistics
paper - slides - code

A Fast and Sound Tagging Method for Discontinuous Named-Entity Recognition

Caio Corro
EMNLP 2024 - Conference on Empirical Methods in Natural Language Processing
paper - code

News

• (January, 2026) two papers accepted @ EACL 2026:

  • KAD: A Framework for Proxy-based Test-time Alignment with Knapsack Approximation Deferral (Ayoub Hammal, Pierre Zweigenbaum, Caio Corro)

  • DocPolarBERT: A Pre-trained Model for Document Understanding with Relative Polar Coordinate Encoding of Layout Structures (Benno Uthayasooriyar, Antoine Ly, Franck Vermet, Caio Corro )

• (November, 2025) new preprint: KAD: A Framework for Proxy-based Test-time Alignment with Knapsack Approximation Deferral (Ayoub Hammal, Pierre Zweigenbaum, Caio Corro)

• (September, 2025) the bulletin of AFIA on artificial intelligence and economy is available on HAL

• (September, 2025) the special issue of the TAL journal on Robustesse et limites des modèles de traitement automatique des langues is available online.

• (September, 2025) our paper Nested Named Entity Recognition as Single-Pass Sequence Labeling (Alberto Muñoz-Ortiz, David Vilares, Caio Corro, Carlos Gómez-Rodríguez) as been accepted for publication in the Findings of EMNLP 2025!

• (July 8th, 2025) our paper on EuroBERT has been accepted at CoLM 2025!

• (June, 2025) new paper accepted @ ACL 2025: Bregman Conditional Random Fields: Sequence Labeling with Parallelizable Inference Algorithms (Caio Corro, Mathieu Lacroix, Joseph Le Roux)

Students and postdocs

Current:

• Ayoub Hammal, PhD student (oct. 2024 - …) co-supervised with Pierre Zweigenbaum and Miguel Couceiro

Former:

• Benno Uthayasooriyar, PhD student (sept. 2022 - 2025) co-supervised with Franck Vermet and Antoine Ly

• Lilas Pastre, master student (2025) co-supervised with Laurent Amsaleg

• Ayoub Hammal, Master intern (2024)

• Alban Petit, PhD student (oct. 2020 - feb. 2024), co-supervised with François Yvon

• Yara Khater, Master intern (2022 & 2023)

• Emile Chapuis, postdoc (jan. 2022 - dec. 2023) co-advised with Nadi Tomeh

• Lili Lu, Master intern (2022)

• Lynda Attouche, Undergrad intern (2021)

• Alban Petit, Master intern (2020), now PhD student

• Nicolas Devatine, Master intern (2020), now Phd student @ IRIT