cross entropy
class QuadraticCost(object):
@staticmethod
def fn(a, y):
return 0.5*np.linalg.norm(a-y)**2
@staticmethod
def delta(z, a, y):
return (a-y) * sigmoid_prime(z)cross entropy
class QuadraticCost(object):
@staticmethod
def fn(a, y):
return 0.5*np.linalg.norm(a-y)**2
@staticmethod
def delta(z, a, y):
return (a-y) * sigmoid_prime(z)Copyright © 2021 Codeinu
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