May 2020
Intermediate to advanced
576 pages
26h 55m
French
Content preview from Deep Learning avec Keras et TensorFlow
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1.10 Régression logistique
43
© Dunod – Toute reproduction non autorisée est un délit.
Une fois entraîné, le classicateur de régression logistique peut estimer la probabilité
qu’une nouvelle eur soit un Iris virginica en se basant sur ces deux variables. La ligne
en pointillé représente les points où le modèle estime une probabilité de 50%: c’est
la frontière de décision du modèle. Notez que cette frontière est linéaire
23
. Chaque
ligne parallèle matérialise les points où le modèle estime une probabilité donnée, de
15% (en bas à gauche), jusqu’à 90% (en haut à droite). D’après le modèle, toutes les
eurs au-dessus de la ligne en haut à droite ...
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