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PiperOrigin-RevId: 300477605

PiperOrigin-RevId: 299007295

PiperOrigin-RevId: 296767846

PiperOrigin-RevId: 296561671

PiperOrigin-RevId: 296550109

PiperOrigin-RevId: 294712331

PiperOrigin-RevId: 293378746

Refactor basic utils to modeling/

PiperOrigin-RevId: 269600561

PiperOrigin-RevId: 264474346

262004398  by taylorrobie<taylorrobie@google.com>:

    Internal change

PiperOrigin-RevId: 262004398

261171038  by gjn<gjn@google.com>:

    Remove weight_decay_rate 0 early exit check

    Removing this code path should be fine since this was actually not doing
    what it meant to do. Since weight_decay_rate is actually a tensor, the
    equality check was only looking at the id of the object and comparing to
    0. This should never be true. Evaluating a tensor is also not what we
    want to do at this point of the code. Thus it should be fine to simply
    remove this code.

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261169862  by haoyuzhang<haoyuzhang@google.com>:

    Internal change

261153520  by haoyuzhang<haoyuzhang@google.com>:

    Internal change

261140302  by hongkuny<hongkuny@google.com>:

    Clean up

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PiperOrigin-RevId: 261171038

258881002  by hongkuny<hongkuny@google.com>:

    Fix lint.

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258874998  by hongkuny<hongkuny@google.com>:

    Internal

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258872662  by hongkuny<hongkuny@google.com>:

    Fix doc

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258871624  by hongkuny<hongkuny@google.com>:

    Internal change

PiperOrigin-RevId: 258881002

258597234  by rxsang<rxsang@google.com>:

    Update all the TPUStrategy examples to use the new v2 APIs, i.e.
    make_dataset_iterator -> experimental_distribute_dataset,
    make_input_fn_iterator -> experimental_distribute_datasets_from_function,
    unwrap -> experimental_local_results,
    experimental_run -> experimental_run_v2

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258581998  by taylorrobie<taylorrobie@google.com>:

    Update keras v2 optimizers to reuse coefficients which are shared across all updates, which reduces the total number of ops created by between 5% (for simple optimizers such as SGD and Adagrad) and 25% (for complicated optimizers such as Adam and NAdam). Separate copies are made for each device and dtype.

    The effect of this change on run time is fairly minimal since Grappler is expected to consolidate most of these ops; however it does improve graph construction time.

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PiperOrigin-RevId: 258597234

254874613  by hongkuny<hongkuny@google.com>:

    Update glue tasks enum to match directory name

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254866171  by taylorrobie<taylorrobie@google.com>:

    Internal change

PiperOrigin-RevId: 254874613

253113801  by A. Unique TensorFlower<gardener@tensorflow.org>:

    Internal change

252697519  by dmchen<dmchen@google.com>:

    BERT SQuAD accuracy test

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252663512  by A. Unique TensorFlower<gardener@tensorflow.org>:

    Internal change

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252647871  by A. Unique TensorFlower<gardener@tensorflow.org>:

    Enable multi worker TPU training for BERT pretraining.

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PiperOrigin-RevId: 253113801

249377254  by hongkuny<hongkuny@google.com>:

    Internal change

249373328  by hongkuny<hongkuny@google.com>:

    Clean up tf import

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249333938  by hongkuny<hongkuny@google.com>:

    Fix tf1 import

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249325089  by hongkuny<hongkuny@google.com>:

    BERT 2.0

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249173564  by hongkuny<hongkuny@google.com>:

    Internal change

PiperOrigin-RevId: 249377254