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Machine Learning avec Scikit-Learn
book

Machine Learning avec Scikit-Learn

by Aurélien Géron
November 2019
Intermediate to advanced
320 pages
13h 35m
French
Dunod
Content preview from Machine Learning avec Scikit-Learn
108
Chapitre 4. Entraînement de modèles
graduellement les paramètres du modèle pour minimiser la fonction de coût
sur le jeu d’entraînement, convergeant au nal vers le même jeu de paramètres
que dans la première méthode. Nous examinerons plusieurs variantes de cette
méthode de descente de gradient que nous utiliserons à maintes reprises lorsque
nous étudierons les réseaux neuronaux
53
: descente de gradient groupée (ou
batch), descente de gradient par mini-lots et descente de gradient stochastique.
Nous examinerons ensuite la régression polynomiale, un modèle plus complexe
pouvant s’ajuster à des jeux de données non linéaires. Ce modèle ayant ...
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Publisher Resources

ISBN: 9782100797820