Workshop on "combined extreme events" at the actuaries' congress
At the 25th actuaries' congress, the Geolearning chair will host a workshop dedicated to extreme weather events
Day “Generative models: Theory, learning and environmental applications”
The Geolearning Chair and the RESSTE network organize a scientific day on the theme of recent methodological progress for generative models (GANs, Denoising Diffusion Models, etc.) and their use in the fields of climate, environment and more generally geosciences, with interventions from experts in theoretical aspects , methodological and applied.
Registrations are closed.
Program
9:50 a.m. – 10:00 a.m. Opening of the day
10:00 a.m.-12:00 p.m. Introduction(s) to generative models
Moderation: Thomas Opitz and Denis Allard
- Francis Bach (SIERRA–Inria, ENS–PSL) An alternative view of denoising diffusion models [Presentation ]
- Gerard Biau (LPSM, Sorbonne University) A primer on Generative Adversarial Networks [Presentation ]
- Pascal Yiou (LSCE, CEA) A stochastic weather generator as an emulator for extreme climate events [Presentation ]
12:00 p.m. – 13:30 p.m. Buffet lunch on site
13:30 p.m.-14:30 p.m. Recent methodological and applied advances
Moderation: Thomas Romary
- Pierre Marion (EPFL) Diffusion models for image generation: algorithms and (a bit of) theory [Presentation ]
- Maxime Beauchamp (IMT Atlantique) Linking Geostatistics SPDE & Data Assimilation through deep learning for the generation of (large) ensembles in Geosciences [Presentation ]
14:30 p.m.-15:30 p.m. Exploration of new methods and implementations (Part I)
Moderation: Liliane Bel
- Ferdinand Bhavsar (Mines-Paris PSL) Categorical Denoising Diffusion Models using Markov Jump Processes [Presentation ]
- David Metivier (MISTEA, INRAE) Deep Learning for lake pollution forecast [Presentation ]
15:30 p.m.-16:00 p.m. Coffee break
16:00-17:00 p.m. Exploration of new methods and implementations (Part II)
Moderation: Valérie Monbet
- Lucia Clarotto, Hugo Gangloff (MIA Paris Saclay, AgroParisTech/INRAE) Physics-informed neural networks for Matérn-SPDEs: attempts and challenges [Presentation ]
- Yuke Xie (Mines-Paris PSL) Deep Generative Models for Stochastic Geophysical Imaging and Uncertainty Quantification [Presentation ]
Francis Bach presents generative diffusion models
Gérard Biau presents GANs
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Geolearning Chair Scientific Day
The Geolearning chair held a scientific day at Mines Paris – PSL on April 8, 2026. All the supported projects were presented there, as well as emerging challenges.
Conference on stochastic weather generators
The Geolearning Chair is contributing to the organization of the conference on Stochastic Weather Generators, which will be held in Grenoble from December 2nd to 4th, 2025. This international workshop aims to explore cutting-edge methods and emerging challenges for simulating weather variables: precipitation, temperatures, etc.