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marcopeix/cross_entropy_loss.py

Created February 26, 2019 18:03
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cross_entropy_loss.py
def compute_cost(AL, Y):
m = Y.shape[1]
cost = (-1/m) * np.sum(np.multiply(Y, np.log(AL)) + np.multiply((1 - Y), np.log(1 - AL)))
cost = np.squeeze(cost)
assert(cost.shape == ())
return cost
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