tf.keras.activations.selu（十）

tf.keras.activations.selu

tf.keras.activations.selu(x)

 

Defined in tensorflow/python/keras/activations.py.

Scaled Exponential Linear Unit. (Klambauer et al., 2017).

Arguments:

• x: A tensor or variable to compute the activation function for.

Returns:

Tensor with the same shape and dtype as `x`.

@tf_export('keras.activations.selu')
def selu(x):
  """Scaled Exponential Linear Unit. (Klambauer et al., 2017).
  Arguments:
      x: A tensor or variable to compute the activation function for.
  Returns:
      Tensor with the same shape and dtype as `x`.
  # Note
      - To be used together with the initialization "lecun_normal".
      - To be used together with the dropout variant "AlphaDropout".
  """
  alpha = 1.6732632423543772848170429916717
  scale = 1.0507009873554804934193349852946
  return scale * K.elu(x, alpha)

Note

- To be used together with the initialization "lecun_normal".
- To be used together with the dropout variant "AlphaDropout".