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Author

A. Gavaudan

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#artificial intelligence Preprint Oct 2026

Timestral

We introduce Timestral, a family of four time series foundation models for probabilistic forecasting, with 5M, 28M, 123M, and 209M parameters. Timestral sets a new state of the art on GIFT-Eval, TIME, and fev-bench, where Timestral-209M and Timestral-123M take the top two places on every metric. We achieve this with th...

Adrien Petralia, A. Gavaudan, Artjom Joosen et al. · 1 citation
#machine learning Preprint Oct 2026

One-Way Coupling via Patchwise Adaptive Normalization in Transformer Surrogates

Many physical systems exhibit one-way coupling: exogenous fields such as medium density or obstacle geometry influence the dynamics without being affected by them. We investigate how explicitly representing these fields can improve the accuracy and computational efficiency of transformer-based PDE surrogates. Building...

E. Gottlob, Hugo Thimonier, Ludovico Buizza et al. · 0 citations

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