tensorflow::ops::SparseSoftmaxCrossEntropyWithLogits

Computes softmax cross entropy cost and gradients to backpropagate.

Summary

Unlike SoftmaxCrossEntropyWithLogits, this operation does not accept a matrix of label probabilities, but rather a single label per row of features. This label is considered to have probability 1.0 for the given row.

Inputs are the logits, not probabilities.

Arguments:

• scope: A Scope object
• features: batch_size x num_classes matrix
• labels: batch_size vector with values in [0, num_classes). This is the label for the given minibatch entry.

Returns:

• Output loss: Per example loss (batch_size vector).
• Output backprop: backpropagated gradients (batch_size x num_classes matrix).

Public attributes

::tensorflow::Output backprop

::tensorflow::Output loss

Operation operation

 SparseSoftmaxCrossEntropyWithLogits(
  const ::tensorflow::Scope & scope,
  ::tensorflow::Input features,
  ::tensorflow::Input labels
)