May 2020
Intermediate to advanced
576 pages
26h 55m
French
Content preview from Deep Learning avec Keras et TensorFlow
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394
Chapitre 10. Apprentissage par renforcement
Pac-Man, le nombre d’états possibles est largement supérieur au nombre d’atomes
sur notre planète. Il est donc absolument impossible de conserver une estimation de
chaque valeur Q.
La solution consiste à trouver une fonction Q
q
(s, a) qui permet d’obtenir une
approximation de la valeur Q de n’importe quel couple état-action (s, a) en utili-
sant un nombre de paramètres raisonnable (donnés par le vecteur de paramètres q).
Cette approche est appelée apprentissage Q par approximation. Pendant longtemps,
la recommandation a été d’employer des combinaisons linéaires de caractéristiques
forgées manuellement ...
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