utils.py 文件源码

def actFctDerFromOutput(x):
    """
    Derivate of the activation function
    WARNING: In this version, we take as input an output value 
    after the activation function (x = tanh(output of the tensor)).
    This works because the derivate of tanh is function of tanh
    """
    return 1.0 - x**2

#def actFctDer(x):
    #"""
    #Derivate of the activation function
    #"""
    #return 1.0 - np.tanh(x)**2

# Other utils functions