Xavier Lebeuf
Contact : xavier.lebeuf@polymtl.ca
Director : Charles Audet
Co-directors : Sébastien Le Digabel, Miguel Diago-Martinez
External collaborators: Stéphane Alarie
Member of GERAD and PhD student at Polytechnique Montréal since august 2023.
Optimization of black boxes with variable precision
My research consists of utilizing the stochastic structure of non-deterministic black boxes to ease to optimization process with the NOMAD software. The idea is to adapt the precision (or fidelity) of every black box evaluation dynamically, such that some evaluations are very fast, and others longer. This project is specifically aimed at stochastic black boxes with very time consuming evaluations like the PRIAD simulator from IREQ (L'institut de recherche d'Hydro-Québec). The approach is developed and tested on SOLAR instances, a set of black boxe instances, some of which have similar properties to PRIAD's problem, but with much less expensive evaluations.
Présentations au GÉRAD
31 octobre 2022: recherche durant la première année de maîtrise
17 avril 2023: pratique de présentation de mémoire de maîtrise
Meetings Maîtrise
02-06-22
16-06-22
30-06-22
15-07-22
07-09-22
21-09-22
05-10-22
19-10-22
16-11-22
30-11-22
14-12-22
30-01-23