Search Results for author: Camille Castera

Found 5 papers, 4 papers with code

From Learning to Optimize to Learning Optimization Algorithms

no code implementations28 May 2024 Camille Castera, Peter Ochs

Towards designing learned optimization algorithms that are usable beyond their training setting, we identify key principles that classical algorithms obey, but have up to now, not been used for Learning to Optimize (L2O).

Near-optimal Closed-loop Method via Lyapunov Damping for Convex Optimization

1 code implementation16 Nov 2023 Severin Maier, Camille Castera, Peter Ochs

We introduce an autonomous system with closed-loop damping for first-order convex optimization.

Inertial Newton Algorithms Avoiding Strict Saddle Points

1 code implementation8 Nov 2021 Camille Castera

We study the asymptotic behavior of second-order algorithms mixing Newton's method and inertial gradient descent in non-convex landscapes.

Second-order step-size tuning of SGD for non-convex optimization

1 code implementation5 Mar 2021 Camille Castera, Jérôme Bolte, Cédric Févotte, Edouard Pauwels

In view of a direct and simple improvement of vanilla SGD, this paper presents a fine-tuning of its step-sizes in the mini-batch case.

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