Search Results for author: Victor Magron

Found 12 papers, 6 papers with code

Local Lipschitz Constant Computation of ReLU-FNNs: Upper Bound Computation with Exactness Verification

no code implementations17 Oct 2023 Yoshio Ebihara, Xin Dai, Victor Magron, Dimitri Peaucelle, Sophie Tarbouriech

By following a standard procedure using multipliers that capture the behavior of ReLUs, we first reduce the upper bound computation problem of the local Lipschitz constant into a semidefinite programming problem (SDP).

Tractable hierarchies of convex relaxations for polynomial optimization on the nonnegative orthant

no code implementations13 Sep 2022 Ngoc Hoang Anh Mai, Victor Magron, Jean-Bernard Lasserre, Kim-Chuan Toh

We consider polynomial optimization problems (POP) on a semialgebraic set contained in the nonnegative orthant (every POP on a compact set can be put in this format by a simple translation of the origin).

Sparse Polynomial Optimization: Theory and Practice

2 code implementations23 Aug 2022 Victor Magron, Jie Wang

Fortunately, for many applications, we can look at the problem in the eyes and exploit the inherent data structure arising from the cost and constraints describing the problem, for instance sparsity or symmetries.

Stability Analysis of Recurrent Neural Networks by IQC with Copositive Mutipliers

no code implementations9 Feb 2022 Yoshio Ebihara, Hayato Waki, Victor Magron, Ngoc Hoang Anh Mai, Dimitri Peaucelle, Sophie Tarbouriech

To get around this difficulty, we loosen the standard positive semidefinite cone to the copositive cone, and employ copositive multipliers to capture the nonnegativity properties.

The Constant Trace Property in Noncommutative Optimization

no code implementations3 Feb 2021 Ngoc Hoang Anh Mai, Abhishek Bhardwaj, Victor Magron

In this article, we show that each semidefinite relaxation of a ball-constrained noncommutative polynomial optimization problem can be cast as a semidefinite program with a constant trace matrix variable.

Optimization and Control

A Sublevel Moment-SOS Hierarchy for Polynomial Optimization

1 code implementation13 Jan 2021 Tong Chen, Jean-Bernard Lasserre, Victor Magron, Edouard Pauwels

We introduce a sublevel Moment-SOS hierarchy where each SDP relaxation can be viewed as an intermediate (or interpolation) between the d-th and (d+1)-th order SDP relaxations of the Moment-SOS hierarchy (dense or sparse version).

Combinatorial Optimization Optimization and Control

Minimizing rational functions: a hierarchy of approximations via pushforward measures

no code implementations10 Dec 2020 Jean Bernard Lasserre, Victor Magron, Swann Marx, Olivier Zahm

This paper is concerned with minimizing a sum of rational functions over a compact set of high-dimension.

Optimization and Control

Optimization over trace polynomials

no code implementations22 Jun 2020 Igor Klep, Victor Magron, Jurij Volčič

Motivated by recent progress in quantum information theory, this article aims at optimizing trace polynomials, i. e., polynomials in noncommuting variables and traces of their products.

Mathematical Physics Functional Analysis Mathematical Physics Optimization and Control 46N50, 90C22, 47N10, 13J30

Chordal-TSSOS: a moment-SOS hierarchy that exploits term sparsity with chordal extension

1 code implementation4 Mar 2020 Jie Wang, Victor Magron, Jean-Bernard Lasserre

The novelty and distinguishing feature of such relaxations is to obtain quasi block-diagonal matrices obtained in an iterative procedure that performs chordal extension of certain adjacency graphs.

Optimization and Control 14P10, 90C25, 12D15, 12Y05

Semialgebraic Optimization for Lipschitz Constants of ReLU Networks

2 code implementations NeurIPS 2020 Tong Chen, Jean-Bernard Lasserre, Victor Magron, Edouard Pauwels

The Lipschitz constant of a network plays an important role in many applications of deep learning, such as robustness certification and Wasserstein Generative Adversarial Network.

Adversarial Robustness

TSSOS: A Moment-SOS hierarchy that exploits term sparsity

3 code implementations18 Dec 2019 Jie Wang, Victor Magron, Jean-Bernard Lasserre

This paper is concerned with polynomial optimization problems.

Optimization and Control

Positivity certificates and polynomial optimization on non-compact semialgebraic sets

2 code implementations26 Nov 2019 Ngoc Hoang Anh Mai, Jean-Bernard Lasserre, Victor Magron

As a consequence, it allows one to define a hierarchy of semidefinite relaxations for a general polynomial optimization problem.

Optimization and Control

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