Axis 2: Decision support made in complex systems

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Cahiers du GERAD

1453 results — page 15 of 73

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The standard blending problem consists of combining components to produce a final product with a given demand, while satisfying specific criteria with resp...

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We address the problem of accelerating column generation (CG) for set-covering formulations via dual optimal inequalities (DOI). DOI use knowledge of the du...

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This paper presents the application of adaptive simultaneous stochastic optimization with a representative branching framework to generate the strategic pl...

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We built a time-consistent cooperative solution for the class of dynamic games played over event trees in the context where the structure of the tree is gi...

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We analyze a differential game with spatially distributed controls to study a multiregional transboundary pollution problem. The dynamics of the state variab...

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The integral column generation algorithm (ICG) was recently introduced to solve set partitioning problems involving a very large number of variables. This pr...

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In derivative-free and blackbox optimization, the objective function is often evaluated through the execution of a computer program seen as a blackbox. It ...

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Production planners in the non-ferrous metal industry face an inherent combinatorial complexity of the metal production process within a fast changing market...

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This work proposes strategies to handle three types of constraints in the context of blackbox optimization: binary constraints that simply indicate if they a...

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This paper studies the team orienteering problem, where the arrival time and service time affect the collection of profits. Such interactions result in a non...

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We propose a generalized decomposition approach for production planning problems with process configuration decisions. These problems appear in contexts wher...

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Nanoparticle-mediated drug delivery may be a promising alternative to traditional chemo-therapy of high systemic toxicity. Tumor tissue architecture poses a ...

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This work introduces StoMADS, a stochastic variant of the mesh adaptive direct-search (MADS) algorithm originally developed for deterministic blackbox optim...

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We introduce an iterative method named BiLQ for solving general square linear systems \(Ax=b\) based on the Lanczos biorthogonalization process defined by ...

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We determine optimal pricing and order quantity of two substitute products in two markets, one of them is seasonal, with a decreasing market potential over...

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Cities are facing severe traffic-related problems causing emission thresholds to be exceeded. All around the world, city center access restriction policies a...

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In an optimization problem, multiplying an inequality constraint by a positive scalar has no effect on the domain. However, such a transformation might have...

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In this paper, we compare the BFGS and the conjugate gradient (CG) methods for solving unconstrained problems with a trust-region algorithm. The main result ...

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This paper presents a linear mixed-integer formulation to solve the short-term unit commitment problem. It determines the pair of maximum efficiency points o...

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In e-commerce warehouses, online retailers increase their efficiency by using a mixed-shelves (or scattered storage) concept, where unit loads are purposeful...

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