tf.contrib.layers.dense_to_sparse( tensor, eos_token=0, outputs_collections=None, scope=None )
Converts a dense tensor into a sparse tensor. An example use would be to convert dense labels to sparse ones so that they can be fed to the ctc_loss.
Tensorto be converted to a
eos_token: An integer. It is part of the target label that signfies the end of a sentence.
outputs_collections: Collection to add the outputs.
scope: Optional scope for name_scope.
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Code samples licensed under the Apache 2.0 License.