Louis-Alexandre Leclaire

Selection of variables in parallel space decomposition for the mesh adaptive direct search algorithm

  • Stéphane Alarie
  • Nadir Amaioua
  • Charles Audet
  • Sébastien Le Digabel
  • Louis-Alexandre Leclaire
    • Categories Nonlinear Optimization, Parallel Algorithms

    The parallel space decomposition of the Mesh Adaptive Direct Search algorithm (PSDMADS proposed in 2008) is an asynchronous parallel method for constrained derivative-free optimization with large number of variables. It uses a simple generic strategy to decompose a problem into smaller dimension subproblems. The present work explores new strategies for selecting subset of variables defining … Read more

    Snow water equivalent estimation using blackbox optimization

  • Stéphane Alarie
  • Charles Audet
  • Vincent Garnier
  • Sébastien Le Digabel
  • Louis-Alexandre Leclaire
    • Categories Applications - Science and Engineering, Constrained Nonlinear Optimization, Nonsmooth Optimization Tags , , , ,

    Accurate measurements of snow water equivalent (SWE) is an important factor in managing water resources for hydroelectric power generation. SWE over a catchment area may be estimated via kriging on measures obtained by snow monitoring devices positioned at strategic locations. The question studied in this paper is to find the device locations that minimize the … Read more