tf.contrib.gan.losses.wargs.cycle_consistency_loss( data_x, reconstructed_data_x, data_y, reconstructed_data_y, scope=None, add_summaries=False )
Defined in tensorflow/contrib/gan/python/losses/python/losses_impl.py
.
Defines the cycle consistency loss.
The cyclegan model has two partial models where model_x2y
generator F maps data set X to Y, model_y2x
generator G maps data set Y to X. For a data_x
in data set X, we could reconstruct it by reconstructed_data_x = G(F(data_x)) Similarly reconstructed_data_y = F(G(data_y))
The cycle consistency loss is about the difference between data and reconstructed data, namely loss_x2x = |data_x - G(F(data_x))| (L1-norm) loss_y2y = |data_y - F(G(data_y))| (L1-norm) * loss = (loss_x2x + loss_y2y) / 2 where loss
is the final result.
See https://arxiv.org/abs/1703.10593 for more details.
data_x
: A Tensor
of data X.reconstructed_data_x
: A Tensor
of reconstructed data X.data_y
: A Tensor
of data Y.reconstructed_data_y
: A Tensor
of reconstructed data Y.scope
: The scope for the operations performed in computing the loss. Defaults to None.add_summaries
: Whether or not to add detailed summaries for the loss. Defaults to False.A scalar Tensor
of cycle consistency loss.
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Licensed under the Creative Commons Attribution License 3.0.
Code samples licensed under the Apache 2.0 License.
https://www.tensorflow.org/api_docs/python/tf/contrib/gan/losses/wargs/cycle_consistency_loss