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math.OC2026★ 1 cited
Derivative-Free Bilevel Optimization with Inexact Lower-Level Solutions
Edoardo Cesaroni, Giampaolo Liuzzi, Stefano Lucidi
In this work, we propose derivative-free framework for bilevel optimization. We consider both the upper and lower-level problems with bound constraints on the variables, as well as…
math.OC2026
Projected Gradient Methods with Momentum
Matteo Lapucci, Giampaolo Liuzzi, Stefano Lucidi +2
We focus on the optimization problem with smooth, possibly nonconvex objectives and a convex constraint set for which the Euclidean projection operation is practically available. F…