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Commits on Oct 12, 2019

• StructuredTensor: Add slicing (__getitem__)

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• StructuredTensor: Add conversion to & from nested python dictionary/list values.

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• StructuredTensor: Add ragged_rank and nested_row_splits properties

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Commits on Oct 11, 2019

• Add TypeSpec for StructuredTensor.

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• Simplify internal implementation of StructuredTensor

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Commits on Oct 10, 2019

• Add tf.data.experimental.dense_to_ragged_batch(), which batches together tf.Tensors that have differing lengths using `tf.RaggedTensor`.

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• Extend StructuredTensor to support ragged collections of structures.

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Commits on Oct 9, 2019

• Add StructuredTensor class

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• Fix bug where shape information that was supposed to be masked was visible inside the body of a tf.function for composite tensors such as RaggedTensor and SparseTensor.

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Commits on Oct 7, 2019

• Fix bug where shape information that was supposed to be masked was visible inside the body of a tf.function for composite tensors such as RaggedTensor and SparseTensor.

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Commits on Oct 3, 2019

• Extend tf.io.parse_sequence_example and tf.io.parse_single_sequence_example to handle ragged tensor features.

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Commits on Oct 2, 2019

• Improve handling of variant-encoded ragged tensors with ragged_rank=0.

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Commits on Oct 1, 2019

• Update backwards-compatibility checks to allow adding a new default to an op attribute.

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Commits on Sep 30, 2019

• For ops with an input for the form "a: N * T", if N=0 and there's no other information about what type T should resolve to, then set T to its default value (if one is present).

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Commits on Sep 28, 2019

• Fix bug in strided slices for ragged tensors when step size is negative. (e.g. `rt[:, ::-1]`).

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Commits on Sep 25, 2019

• Extend parse_example_dataset() to support RaggedTensors.

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Commits on Sep 24, 2019

• Fix spurious newlines in docstring for tf.gather.

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• * Update RaggedTensor.to_tensor to use a dedicated c++ kernel. This improves throughput by up to 100% (depending on the tensor shape).

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• In ParseExampleOp: pass example::Result by const reference to WriteOutput().

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Commits on Sep 20, 2019

• Add gradient for RaggedTensorToTensor op.

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• Update RaggedFeature doctest to be deterministic.

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• Added benchmarks for RaggedTensor.to_dense. Also added a few new test cases and improved readability of a few error messages.

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• Fix bug in tf.ragged.stack() behavior with 1D inputs.

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• Performance improvements for RaggedTensorToTensor

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Commits on Sep 19, 2019

• Set serialized.shape=[] in parse_single_example.

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• Updated tf.io.parse_example and tf.io.parse_single_example to support ragged features.

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Commits on Sep 17, 2019

• Fix segfault if sequence raises an exception when nest.flatten accesses an element.

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• Add a test that fails if RaggedTensor.row_splits is computed lazily.

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• Automated rollback of commit 4e2bbf82aae9ed1459af93224217b7586a9a8cb0

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Commits on Sep 16, 2019

• * Don't construct RaggedTensor.row_splits until and unless it is needed.

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• Update FastParseSingleExample to handle ragged tensors.

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Commits on Sep 6, 2019

• Add test_util decorator that makes it easier to check forward compatibility horizons.

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• Fix typo in assertion string in parsing_ops.py

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• Extend tf.identity to work with CompositeTensors (such as SparseTensor)

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• Fix doctests in RaggedTensor docstrings.

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