Séminaire Jeunes chercheurs (Antoine Poirot-Bourdain, jeudi 2 avril 2026)

La prochaine séance du séminaire Jeunes chercheurs du CEREMADE aura lieu le jeudi 2 avril 2026 à 17h en salle A707. Nous aurons le plaisir d'écouter Antoine Poirot-Bourdain (CEREMADE et HeKA (INRIA, INSERM, Université Paris Cité)), qui nous parlera de

SurvivalGPU: Scalable Survival Analysis for R and Python.

Abstract
Survival analysis is widely used across fields ranging from predictive maintenance to public health to model time-to-event outcomes. The Cox proportional hazards model is the standard approach, with a rich landscape of methodological developments extending its scope and flexibility. One notable extension is the Weighted Cumulative Exposure (WCE) model, which captures the longitudinal impact of time-varying exposures. However, applying these models to large-scale databases such as electronic health records faces significant computational bottlenecks, making iterative procedures like bootstrapping or cross-validation prohibitively expensive. We introduce survivalGPU, an R and Python package leveraging GPU acceleration through PyTorch and KeOps to address these limitations, while preserving  compatibility with the reference survival and WCE packages.