Coupling rare event algorithms and deep neural network to predict extreme heat waves | Vidéo | Carmin.tv

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Coupling rare event algorithms and deep neural network to predict extreme heat waves

De Freddy Bouchet

Apparaît dans la collection : On Future Synergies for Stochastic and Learning Algorithms / Sur les synergies futures autour des algorithmes d'apprentissage et stochastiques

Extreme events are of primarily importance for understanding the impact of climate change. However, because they are too rare and realistic models are too complex, traditional deep neural networks are inefficient for predictions. We cope with this lack of data using rare event simulations. From the best climate models, we oversample extremely rare events and obtain several hundreds more events than with usual climate runs, at a fixed numerical cost. Coupled with deep neural networks this approach improves drastically the prediction of extreme heat waves.

Informations sur la vidéo

Date de captation 27/09/2021
Date de publication 18/11/2021
Institut CIRM
Licence CC BY NC ND
Langue Anglais
Audience Chercheurs
Réalisateur(s) Guillaume Hennenfent
Format MP4

Données de citation

DOI 10.24350/CIRM.V.19817403
Citer cette vidéo Bouchet, Freddy (27/09/2021). Coupling rare event algorithms and deep neural network to predict extreme heat waves. CIRM. Audiovisual resource. DOI: 10.24350/CIRM.V.19817403
URL https://dx.doi.org/10.24350/CIRM.V.19817403

Domaine(s)

Bibliographie

RAGONE, Francesco, WOUTERS, Jeroen, et BOUCHET, Freddy. Computation of extreme heat waves in climate models using a large deviation algorithm. Proceedings of the National Academy of Sciences, 2018, vol. 115, no 1, p. 24-29. - https://doi.org/10.1073/pnas.1712645115
LUCENTE, Dario, ROLLAND, Joran, HERBERT, Corentin, et al. Coupling rare event algorithms with data-based learned committor functions using the analogue Markov chain. arXiv preprint arXiv:2110.05050, 2021. - https://arxiv.org/abs/2110.05050
JACQUES-DUMAS, Valérian, RAGONE, Francesco, BORGNAT, Pierre, et al. Deep Learning-based Extreme Heatwave Forecast. arXiv preprint arXiv:2103.09743, 2021. - https://arxiv.org/abs/2103.09743

Codes MSC

Document(s)

https://www.cirm-math.fr/RepOrga/2389/Slides/Bouchet.pdf

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