tensorflow::ops::SparseSoftmax

#include <sparse_ops.h>

Applies softmax to a batched N-D SparseTensor.

Summary

The inputs represent an N-D SparseTensor with logical shape [..., B, C] (where N >= 2), and with indices sorted in the canonical lexicographic order.

This op is equivalent to applying the normal tf.nn.softmax() to each innermost logical submatrix with shape [B, C], but with the catch that the implicitly zero elements do not participate. Specifically, the algorithm is equivalent to the following:

(1) Applies tf.nn.softmax() to a densified view of each innermost submatrix with shape [B, C], along the size-C dimension; (2) Masks out the original implicitly-zero locations; (3) Renormalizes the remaining elements.

Hence, the SparseTensor result has exactly the same non-zero indices and shape.

Arguments:

• scope: A Scope object
• sp_indices: 2-D. NNZ x R matrix with the indices of non-empty values in a SparseTensor, in canonical ordering.
• sp_values: 1-D. NNZ non-empty values corresponding to sp_indices.
• sp_shape: 1-D. Shape of the input SparseTensor.

Returns:

• Output: 1-D. The NNZ values for the result SparseTensor.

Public attributes

::tensorflow::Output output

Public functions

 SparseSoftmax(
  const ::tensorflow::Scope & scope,
  ::tensorflow::Input sp_indices,
  ::tensorflow::Input sp_values,
  ::tensorflow::Input sp_shape
)

::tensorflow::Node * node() const 

operator::tensorflow::Input() const 

operator::tensorflow::Output() const