softmax函数用法及案例分析-创新互联

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如下所示:

def softmax(logits, axis=None, name=None, dim=None):
 """Computes softmax activations.
 This function performs the equivalent of
  softmax = tf.exp(logits) / tf.reduce_sum(tf.exp(logits), axis)
 Args:
 logits: A non-empty `Tensor`. Must be one of the following types: `half`,
  `float32`, `float64`.
 axis: The dimension softmax would be performed on. The default is -1 which
  indicates the last dimension.
 name: A name for the operation (optional).
 dim: Deprecated alias for `axis`.
 Returns:
 A `Tensor`. Has the same type and shape as `logits`.
 Raises:
 InvalidArgumentError: if `logits` is empty or `axis` is beyond the last
  dimension of `logits`.
 """
 axis = deprecation.deprecated_argument_lookup("axis", axis, "dim", dim)
 if axis is None:
 axis = -1
 return _softmax(logits, gen_nn_ops.softmax, axis, name)

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