- Prevent unnecessary tensorflow.Example copies when this method
  is used in serving.
Change: 125788885

- adds support of paths pointing to the root of a bucket, e.g gs://bucket
- adds pagination support for GetChildren
- makes a more optimal HTTP request in GetChildren
Change: 125785863

Change: 125783676

Change: 125783541

Change: 125783336

Change: 125783060

Change: 125780396

Fix a flaky test by computing half-precision gamma samples with float precision intermediate calculations.
Change: 125776264

Change: 125761757

Change: 125752088

Change: 125738602

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Change: 125735275

Also updated the weight initialization to ensure that the initial weights are likely to be greater than the smaller possible value representable using a 16 bit float (~0.00006).
Change: 125733195

Change: 125729946

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Change: 125729413

One TODO for DirichletMultinomial.
Change: 125729016

RE the bugfix, I noticed that my tf.slim loss metric is worse than my training loss, and I'm guessing it's because my model is evaluated concurrent with its variables being loaded from a checkpoint.
I'm running now to see if this fixes things.
Feel free to ignore this CL until then.
Change: 125728083

Change: 125724750

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Change: 125720510

Added max_steps into training. Distributed training will use max_steps instead of incremental steps.
Change: 125719014

Change: 125714059

Change: 125713863

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Change: 125704382

Add more unit tests for BaseEstimator/Estimator (and one for tensor_signature). Fix bug if no targets used in training. Factor out some repeated code for better test coverage.
Change: 125701861

Change: 125701630

Upgraded Eigen to the latest version that provides new scan operations. This will enable the implementation of the cumsum operation in TensorFlow
Change: 125697517

Write code to build and register entrywise unary transforms. Create transforms for unary TF arithmetic ops.
Change: 125691817

In some cases TensorFlow reads the data via RandomAccessFile in really small
chunks, which doesn't work very efficiently with HTTP requests. Adding a
read-ahead cache significantly boosts the performance.
Change: 125691397

non-deterministic.
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Change: 125644391

Change: 125639609

Add tests to assert all update_op tensors returned from metric_ops produce the proper metric value, and fix streaming_auc to do so.
Change: 125639012