activations.py 文件源码

def selu(x, name=None):
    with tf.name_scope('{}/elu'.format(name) if name else 'elu') as _:
        alpha = 1.6732632423543772848170429916717
        scale = 1.0507009873554804934193349852946
        return scale*tf.where(x >= 0.0, x, alpha*tf.nn.elu(x))


# Aliases