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         Le Digabel

Sébastien Le Digabel

Associate Professor
Department of Mathematical and Industrial Engineering


Sébastien Le Digabel is an Associate Professor of Mathematics at the Ecole Polytechnique in Montreal, and a regular member of the GERAD research center. Before that, he obtained a Ph.D. in applied mathematics from the Ecole Polytechnique in 2008, and worked as a postdoctoral fellow at the IBM Watson Research Center and the University of Chicago in 2010 and 2011.

His research interests include the analysis and development of algorithms for blackbox optimization, and the design of related software. Blackbox optimization occurs when the functions to optimize are given by numerical simulations for which derivative information is not available. In this context, derivative-free optimization may be considered, and in particular the Mesh Adaptive Direct Search (MADS) method of Audet and Dennis, for which Le Digabel's thesis brought some extensions and upgrades. All of his work on MADS is included in the NOMAD software, a free package for blackbox optimization available at www.gerad.ca/nomad.

S. Le Digabel's research is funded by AFOSR, the Canadian NSERC foundation, and the Quebec FRQNT fund.


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