Departure of Ewen Gallic

Arrived on September 1st, 2024, Ewen Gallic left the CRM-CNRS (IRL3457) on August 31, 2025.

He worked with Arthur Charpentier, a professor at the Université du Québec à Montréal.

During his stay, he completed a number of works:

  • Fernandes Machado, A., Charpentier, A., Gallic, E. Optimal Transport on Categorical Data for Counterfactuals using Compositional Data and Dirichlet Transport arXiv (forthcoming, IJCAI). Associated Ebook ;
  • Fernandes Machado, A., Charpentier, A., Gallic, E. (2025. Sequential Conditional (Marginally Optimal) Transport on Probabilistic Graphs for Interpretable Counterfactual Fairness. Proceedings of the AAAI Conference on Artificial Intelligence, 39(18), 19358-19366. Associated Poster. Associated Ebook ;
  • Fernandes Machado, A., Charpentier, A., Flachaire, E., Gallic, E., Hu, F. (2024). Post-Calibration Techniques: Balancing Calibration and Score Distribution Alignment. NeurIPS 2024 Workshop on Bayesian Decision-making and Uncertainty. Associated Poster. Associated Ebook ;
  • Crofils, C., Gallic, E., Vermandel, G. (2025). The Dynamic Effects of Weather Shocks on Agricultural Production. Journal of Environmental Economics and Management, 130, 103078. Associated Ebook ;

and initiated others, of which the following are sufficiently advanced to have been partially made public:

  • Il Idrissi, M., Fernandes Machado, A., Charpentier A., Gallic, E. Unveil Sources of Uncertainty: Feature Contribution to Conformal Prediction Intervals arXiv ;
  • Dovis, M., Ferrière, N., Gallic, E. When It Rains, It (Possibly) Hurts: The Impact of Rainfall Shocks on Violence Against Children in Nigeria. Associated Slides. Associated Poster.

With Arthur Charpentier, he co-supervised a doctoral student enrolled at UQAM. The three of them co-supervised MITACS interns from a Mexican university and a Ukrainian university.

Ewen Gallic is a lecturer at the Université Aix-Marseille and at the Aix-Marseille School of Economics.