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Add error function

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This commit is contained in:
Julien Chemillier 2022-04-12 18:33:28 +02:00
parent 92455a5335
commit 71a9a9adf5
1 changed files with 6 additions and 3 deletions
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9
src/mnist/neural_network.c
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@ -231,15 +231,18 @@ void initialisation_du_reseau_neuronal(Reseau* reseau) {
float erreur_sortie(Reseau* reseau, int numero_voulu){
/* Renvoie l'erreur du réseau neuronal pour une sortie */
float erreur = 0;
Couche* derniere_couche = reseau->couches[reseau->nb_couches-1];
float neurone_value;
for (int i=0; i < reseau->nb_couches-1; i++) {
neurone_value = reseau->couches[reseau->nb_couches-1]->neurones[i]->z;
if (i==numero_voulu) {
erreur += (1-derniere_couche->neurones[i]->z)*(1-derniere_couche->neurones[i]->z);
erreur += (1-neurone_value)*(1-neurone_value);
}
else {
erreur += derniere_couche->neurones[i]->z*derniere_couche->neurones[i]->z;
erreur += neurone_value*neurone_value;
}
}
return erreur;
}