November 2019
Intermediate to advanced
320 pages
13h 35m
French
Content preview from Machine Learning avec Scikit-Learn
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3.4 Classification multi-classes
97
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3.4 CLASSIFICATION MULTI-CLASSES
Alors que les classicateurs binaires permettent de distinguer deux classes, les classi-
cateurs multi-classes (encore appelés classicateurs multinomiaux) permettent de dis-
tinguer plus de deux classes.
Certains algorithmes (comme la descente de gradient stochastique, la classi-
cation par forêts aléatoires et la classication naïve bayésienne) sont capables de
gérer des classes multiples en mode natif. D’autres (comme la régression logistique
ou les machines à vecteurs de support) sont strictement des classicateurs binaires. ...
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