May 2020
Intermediate to advanced
576 pages
26h 55m
French
Content preview from Deep Learning avec Keras et TensorFlow
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524
Annexe C Autres architectures de RNA répandues
entraînés de façon semi-supervisée. La gureC.4 illustre un DBN conguré pour
cette forme d’apprentissage.
Entrée Sortie
Entrée Sortie
Étiquettes
Caractéristiques
RBM3
RBM 2
RBM 1
Figure C.4 – Machine de Boltzmann profonde
configurée pour un apprentissage semi-supervisé
Tout d’abord, RBM 1 est entraîné sans supervision et apprend les caractéris-
tiques de bas niveau présentes dans les données d’entraînement. Ensuite, RBM2 est
entraîné à partir des unités cachées de RBM1, qui lui servent d’entrées, de nouveau
sans supervision. Il apprend des caractéristiques de plus haut niveau (notons que les
unités ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.