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math.OC2025
Optimized projection-free algorithms for online learning: construction and worst-case analysis
Julien Weibel, Pierre Gaillard, Wouter M. Koolen +1
This work studies and develop projection-free algorithms for online learning with linear optimization oracles (a.k.a. Frank-Wolfe) for handling the constraint set. More precisely,…
math.ST2025
Minimax Adaptive Online Nonparametric Regression over Besov Spaces
Paul Liautaud, Pierre Gaillard, Olivier Wintenberger
We study online adversarial regression with convex losses against a rich class of continuous yet highly irregular prediction rules, modeled by Besov spaces with general…