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cs.LG2026
Low-Budget Active Learning through Entropic Optimal Transport
Rim Hajal, Mathieu Besançon, Jérôme Malick
We consider low-budget active learning, which consists of selecting a limited number of points, the coreset, such that a model can be trained to high accuracy on the selection only…
math.OC2026
On the Iterate Convergence of AdaGrad for Generalized Smooth Convex Optimization
Mathieu Besançon, Tung Quoc Le
We prove sequential convergence results for the AdaGrad algorithm family optimizing convex differentiable objectives. Specifically, we provide necessary and sufficient conditions f…