November 2019
Intermediate to advanced
320 pages
13h 35m
French
Content preview from Machine Learning avec Scikit-Learn
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Annexe A Solutions des exercices
CHAPITRE 3 : CLASSIFICATION
Voir les notebooks Jupyter disponibles sur https://github.com/ageron/handson-ml2.
CHAPITRE 4 : ENTRAÎNEMENT DE MODÈLES
1. Si vous avez un jeu d’entraînement comportant des millions de variables,
vous pouvez utiliser une descente de gradient stochastique ou une
descente de gradient par mini-lots, ou encore une descente de gradient
ordinaire si le jeu d’entraînement tient en mémoire. Mais vous ne pouvez
pas utiliser l’équation normale, car le temps de calcul augmente très
rapidement avec le nombre de variables (plus que quadratiquement).
2. Si les caractéristiques composant votre jeu ...
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