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Go to shop › Mathematics - Applied Mathematics

Optimisation Sans Cantraintes

Title: Optimisation Sans Cantraintes

Academic Paper , 2024 , 158 Pages

Autor:in: Dr. Hakima Degaichia (Author)

Mathematics - Applied Mathematics

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Les problèmes d'optimisation différentiable se posent lorsque l'on cherche à déterminer la valeur optimale d’un nombre fini de paramètres. L’optimalité signifie ici la minimalité d'un critère donné. La différentiabilité supposée des fonctions qui définissent le problème écarte d’emblée de notre propos l’optimisation combinatoire (les paramètres à optimiser ne prennent que des valeurs entières ou discrètes) et l’optimisation non lisse (les fonctions ont des irrégularités).

L’optimisation est un sujet très ancien. Taylor [1685-1731], Newton [1643-1727], Lagrange [1736-1813] et Cauchy [1789-1857] ont élaboré les bases des développements limités. L’optimisation a connu un nouvel essor depuis l’apparition des ordinateurs et s’applique désormais dans de très nombreux domaines : économie, gestion, planification, logistique, automatique, robotique, conception optimale, science de l’ingénieur, traitement du signale, etc.

Les méthodes numériques de l’optimisation ont principalement été développées après la Seconde Guerre mondiale, en parallèle avec l’amélioration des ordinateurs, et n’ont cessé depuis de s’enrichir. En optimisation non linéaire, on peut ainsi distinguer plusieurs vagues : méthodes de pénalisation, méthode du lagrangien augmenté (1958), méthodes de quasi-Newton (1959), méthodes newtoniennes ou SQP (1976), algorithmes de points intérieurs (1984). Une vague n’efface pas la précédente, mais permet d’apporter de meilleures réponses à certaines classes de problèmes, comme ce fut le cas pour les méthodes de points intérieurs en optimisation semi-définie positive (SDP). Une attention particulière sera portée aux algorithmes pouvant traiter les problèmes de grande taille, ceux qui se présentent dans les applications.

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Details

Title
Optimisation Sans Cantraintes
Author
Dr. Hakima Degaichia (Author)
Publication Year
2024
Pages
158
Catalog Number
V1466318
ISBN (eBook)
9783389014912
ISBN (Book)
9783389014929
Language
French
Tags
optimisation sans cantraintes
Product Safety
GRIN Publishing GmbH
Quote paper
Dr. Hakima Degaichia (Author), 2024, Optimisation Sans Cantraintes, Munich, GRIN Verlag, https://www.hausarbeiten.de/document/1466318
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