layers.py 文件源码

def __init__(self, rng, input, dropout_rate, rescale):
        """
        rescale: Boolean. Can be only used when applying dropout.
        """
        if rescale:
            one = T.constant(1)
            retain_prob = one - dropout_rate
            input /= retain_prob

        super(DropoutIdentityHiddenLayer, self).__init__(rng=rng, input=input)
        if dropout_rate > 0.:
            self.output = dropout_from_layer(rng, self.output, p=dropout_rate)