Engineering (engineering design, digital design)

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Cahiers du GERAD

214 results — page 8 of 11

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We propose a new approach to construct adaptive multiscale orthonormal (AMO) bases of R<sup><i>N</i></sup> that provide highly sparse signal representations....

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A mixed interior/exterior-point method for nonlinear programming is described, that handles constraints by way of an <i>l</i><sub>1</sub>-penalty function. A...

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An automatic method for constructing linear relaxations of constrained global optimization problems is proposed. Such a construction is based on affine and i...

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We introduce the OPAL framework in which the identification of good algorithmic parameters is interpreted as a black box optimization problem whose variables...

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Recent advances in coupling novel optimization methods to large-scale computing problems have opened the door to tackling a diverse set of physically realist...

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This intentionally short tutorial is an introduction to the main features of AMPL that are relevant to nonlinear optimization model authoring. Pointers are g...

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This work analyzes constrained black box optimization in which the functions defining the problem are periodic with respect to some or all the variables. We ...

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This work studies multi-objective optimization <i>(MOP)</i> of nonsmooth functions subject to general constraints. We first present definitions and optimalit...

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<p>The class of Mesh Adaptive Direct Search (MADS) algorithms is designed for the optimization of constrained black-box problems. The purpose of this paper i...

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We present a procedure for self calibration of a pinhole camera subject to radial distortion. Radial distortion parameters are estimated using a nonlinear le...

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We propose a class of projected Krylov methods for the solution of unsymmetric augmented systems of equations such as those arising from the finite-element f...

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Shared storage policy allows more flexible use of space than that allowed by the dedicated storage policy. This paper addresses duration-of-stay based shared...

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The peak load is the maximum daily processing capacity requirement in a warehouse, and is an alternative criterion for the storage location assignment proble...

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The purpose of this paper is to introduce a new way of choosing directions for the Mesh Adaptive Direct Search (MADS) class of algorithms. The advantages of...

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We describe LANCELOT_simple, an interface to the LANCELOT B nonlinear optimization package within the GALAHAD library (Gould, Orban and Toint, 2003) which ig...

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Storage location assignment and interleaving policy are two closely related problems in warehousing management. This paper addresses the location assignmen...

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In this paper, we examine sets of tools associated to modeling systems for mathematical programming which can be used to automatically detect the presence ...

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We propose a new approach to solve the multi-objective portfolio selection problem in the presence of skewness. The selection of efficient portfolios require...

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This paper describes a Parallel Space Decomposition (PSD) technique for the Mesh Adaptive Direct Search (MADS) algorithm. MADS extends Generalized Pattern ...

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We recall the use of squared slacks used to transform inequality constraints into equalities and several reasons why their introduction may be harmful in ...

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