Sequential stochastic blackbox optimization with zeroth-order gradient estimators

Autor: Charles Audet, Jean Bigeon, Romain Couderc, Michael Kokkolaras

Publikováno v: AIMS Mathematics, Vol 8, Iss 11, Pp 25922-25956 (2023)

This work considers stochastic optimization problems in which the objective function values can only be computed by a blackbox corrupted by some random noise following an unknown distribution. The proposed method is based on sequential stochastic opt

Externí odkaz: https://doaj.org/article/117750536a634907927c03bb83eca901

Combining Cross-Entropy and MADS Methods for Inequality Constrained Global Optimization

Autor: Romain Couderc, Jean Bigeon, Charles Audet

Publikováno v: SN Operations Research Forum
SN Operations Research Forum, Springer, 2021, 2 (3), ⟨10.1007/s43069-021-00075-y⟩

International audience; This paper proposes a way to combine the Mesh Adaptive Direct Search (Mads) algorithm with the Cross-Entropy (CE) method for nonsmooth constrained optimization. The CE method is used as an exploration step by the Mads algorith

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b350b74c05b16ac1d64ccc64b16b43ad
https://hal.archives-ouvertes.fr/hal-03447123

Global Sensitivity Analysis Applied to Train Traffic Rescheduling: A Comparative Study

Autor: Jean Bigeon, Florence Ossart, Harold Gance, Etienne Sourdille, Soha Saad

Publikováno v: Energies
Energies, MDPI, 2021, Simulation and Optimization of Electrotechnical Systems, 14 (19), pp.6420. ⟨10.3390/en14196420⟩
Energies, Vol 14, Iss 6420, p 6420 (2021)
Volume 14
Issue 19

International audience; The adjustment of rail traffic in the event of an electrical infrastructure disruption presents an important decision-making process for the smooth operation of the network. Railway systems are complex, and their analysis reli

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1587371d99363a25deab22029da5a423
https://hal.archives-ouvertes.fr/hal-03447150/document

Performance indicators in multiobjective optimization

Autor: Dominique Cartier, Sébastien Le Digabel, Jean Bigeon, Charles Audet, Ludovic Salomon

Publikováno v: European Journal of Operational Research
European Journal of Operational Research, Elsevier, 2020, 292 (2), pp.397-422. ⟨10.1016/j.ejor.2020.11.016⟩

International audience; In recent years, the development of new algorithms for multiobjective optimization has considerably grown. A large number of performance indicators has been introduced to measure the quality of Pareto front approximations prod

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4afde26b0f046906b09795c47b5d4fe8
https://hal.archives-ouvertes.fr/hal-02464750

A Bi-criterion Flexible Registration Method for Fixtureless Inspection of Compliant Parts

Autor: Jean Bigeon, Gilles Foucault, Kaveh Babanezhad, Antoine Tahan

Publikováno v: Procedia CIRP. 46:307-310

Manufactured mechanical parts such as sheet metal and thin-wall featured parts, often have significant geometrical differences compared to their nominal CAD models as they have a considerably different shape in a free state condition due to gravity a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3aefaf60794ce7bdbf489af8b69679ac
https://doi.org/10.1016/j.procir.2016.04.023