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math.OC2026
High-Dimensional Analysis of Gradient Flow for Extensive-Width Quadratic Neural Networks
Simon Martin, Giulio Biroli, Francis Bach
We study the high-dimensional training dynamics of a shallow neural network with quadratic activation in a teacher-student setup. We focus on the extensive-width regime, where the…
math.OC2026
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,…