Computes softmax cross entropy cost and gradients to backpropagate.
tf.raw_ops.SparseSoftmaxCrossEntropyWithLogits( features, labels, name=None )
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.
Args | |
---|---|
features | A Tensor . Must be one of the following types: half , bfloat16 , float32 , float64 . batch_size x num_classes matrix |
labels | A Tensor . Must be one of the following types: int32 , int64 . batch_size vector with values in [0, num_classes). This is the label for the given minibatch entry. |
name | A name for the operation (optional). |
Returns | |
---|---|
A tuple of Tensor objects (loss, backprop). | |
loss | A Tensor . Has the same type as features . |
backprop | A Tensor . Has the same type as features . |
© 2020 The TensorFlow Authors. All rights reserved.
Licensed under the Creative Commons Attribution License 3.0.
Code samples licensed under the Apache 2.0 License.
https://www.tensorflow.org/versions/r2.4/api_docs/python/tf/raw_ops/SparseSoftmaxCrossEntropyWithLogits