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Make quantizable_separable_conv2d initializer explicitly configurable. (otherwise we could use slim.arg_scope to config the initializer) (#8661)

PiperOrigin-RevId: 315732759

* Merged commit includes the following changes:
311933687  by Sergio Guadarrama:

    Removes spurios use of tf.compat.v2, which results in spurious tf.compat.v1.compat.v2. Adds basic test to nasnet_utils.
    Replaces all remaining import tensorflow as tf with import tensorflow.compat.v1 as tf

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311766063  by Sergio Guadarrama:

    Removes explicit tf.compat.v1 in all call sites (we already import tf.compat.v1, so this code was  doing tf.compat.v1.compat.v1). The existing code worked in latest version of tensorflow, 2.2, (and 1.15) but not in 1.14 or in 2.0.0a, this CL fixes it.

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311624958  by Sergio Guadarrama:

    Updates README that doesn't render properly in github documentation

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310980959  by Sergio Guadarrama:

    Moves research_models/slim off tf.contrib.slim/layers/framework to tf_slim

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310263156  by Sergio Guadarrama:

    Adds model breakdown for MobilenetV3

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308640516  by Sergio Guadarrama:

    Internal change

308244396  by Sergio Guadarrama:

    GroupNormalization support for MobilenetV3.

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307475800  by Sergio Guadarrama:

    Internal change

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302077708  by Sergio Guadarrama:

    Remove `disable_tf2` behavior from slim py_library targets

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301208453  by Sergio Guadarrama:

    Automated refactoring to make code Python 3 compatible.

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300816672  by Sergio Guadarrama:

    Internal change

299433840  by Sergio Guadarrama:

    Internal change

299221609  by Sergio Guadarrama:

    Explicitly disable Tensorflow v2 behaviors for all TF1.x binaries and tests

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299179617  by Sergio Guadarrama:

    Internal change

299040784  by Sergio Guadarrama:

    Internal change

299036699  by Sergio Guadarrama:

    Internal change

298736510  by Sergio Guadarrama:

    Internal change

298732599  by Sergio Guadarrama:

    Internal change

298729507  by Sergio Guadarrama:

    Internal change

298253328  by Sergio Guadarrama:

    Internal change

297788346  by Sergio Guadarrama:

    Internal change

297785278  by Sergio Guadarrama:

    Internal change

297783127  by Sergio Guadarrama:

    Internal change

297725870  by Sergio Guadarrama:

    Internal change

297721811  by Sergio Guadarrama:

    Internal change

297711347  by Sergio Guadarrama:

    Internal change

297708059  by Sergio Guadarrama:

    Internal change

297701831  by Sergio Guadarrama:

    Internal change

297700038  by Sergio Guadarrama:

    Internal change

297670468  by Sergio Guadarrama:

    Internal change.

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297350326  by Sergio Guadarrama:

    Explicitly replace "import tensorflow" with "tensorflow.compat.v1" for TF2.x migration

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297201668  by Sergio Guadarrama:

    Explicitly replace "import tensorflow" with "tensorflow.compat.v1" for TF2.x migration

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294483372  by Sergio Guadarrama:

    Internal change

PiperOrigin-RevId: 311933687

* Merged commit includes the following changes:
312578615  by Menglong Zhu:

    Modify the LSTM feature extractors to be python 3 compatible.

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311264357  by Menglong Zhu:

    Removes contrib.slim

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308957207  by Menglong Zhu:

    Automated refactoring to make code Python 3 compatible.

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306976470  by yongzhe:

    Internal change

306777559  by Menglong Zhu:

    Internal change

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299232507  by lzyuan:

    Internal update.

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299221735  by lzyuan:

    Add small epsilon on max_range for quantize_op to prevent range collapse.

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PiperOrigin-RevId: 312578615

* Merged commit includes the following changes:
310447280  by lzc:

    Internal changes.

--

PiperOrigin-RevId: 310447280
Co-authored-by: Sergio Guadarrama <sguada@google.com>
Co-authored-by: Menglong Zhu <menglong@google.com>

298416930  by lzyuan:

    Explicitly mark base models' state inputs as 'raw_inputs/init_lstm_h_1' and 'raw_inputs_init_lstm_h_2' when pre_bottleneck=True.

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298380851  by skligys:

    Fix LSTD LSTM cells to use fixed_quantize_op().

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297662737  by Menglong Zhu:

    Explicitly replace "import tensorflow" with "tensorflow.compat.v1" for TF2.x migration

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289667197  by lzyuan:

    Internal update.

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288607438  by lzyuan:

    Enforce feature_extractor construction using arg keys.

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PiperOrigin-RevId: 298416930
Co-authored-by: Menglong Zhu <menglong@google.com>

* Push conflicting earlier changes in files touched.

PiperOrigin-RevId: 268414407
PiperOrigin-RevId: 278006953
PiperOrigin-RevId: 281567252
PiperOrigin-RevId: 288363770

* Removes tf.contrib usage and replaces them with direct imports for lstm object detection.

PiperOrigin-RevId: 286065032

* Internal changes.

PiperOrigin-RevId: 288363770

* Manually quantize selected inputs before summing them up.

PiperOrigin-RevId: 283653640

* Fix messy variable paths in LSTD head.

With a VariableScope passed as parameter into tf.variable_scope(),
TF gets all confused and starts placing variables into scopes different
from operations (variable_scope != name_scope).  That leads to very messy
TF graphs.

Before CL:
  FeatureExtractor/LSTM/conv_lstm_cell/bottleneck_0/depthwise_weights
  FeatureExtractor/LSTM/LSTM/conv_lstm_cell/bottleneck_0/separable_conv2d/depthwise

After CL:
  FeatureExtractor/LSTM/conv_lstm_cell/bottleneck_0/depthwise_weights
  FeatureExtractor/LSTM/conv_lstm_cell/bottleneck_0/separable_conv2d/depthwise

PiperOrigin-RevId: 284011539

* Merged commit includes the following changes:
257930561  by yongzhe:

    Mobile LSTD TfLite Client.

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257928126  by yongzhe:

    Mobile SSD Tflite client.

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257921181  by menglong:

    Fix discrepancy between pre_bottleneck = {true, false}

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257561213  by yongzhe:

    File utils.

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257449226  by yongzhe:

    Mobile SSD Client.

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257264654  by yongzhe:

    SSD utils.

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257235648  by yongzhe:

    Proto bazel build rules.

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256437262  by Menglong Zhu:

    Fix check for FusedBatchNorm op to only verify it as a prefix.

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256283755  by yongzhe:

    Bazel build and copybara changes.

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251947295  by yinxiao:

    Add missing interleaved option in checkpoint restore.

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251513479  by yongzhe:

    Conversion utils.

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248783193  by yongzhe:

    Branch protos needed for the lstd client.

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248200507  by menglong:

    Fix proto namespace in example config

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PiperOrigin-RevId: 257930561

* Delete BUILD

246873701  by menglong:

    Missing __init__.py under meta_architectures/

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246857392  by menglong:

    Standardize proto namespace: lstm_object_detection.protos

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246625127  by menglong:

    Internal changes.

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246596481  by menglong:

    Add License

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246580605  by menglong:

    Internal changes

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246344626  by menglong:

    Open source interleaved mobilenet v2 model.

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244893883  by menglong:

    Introduce multi_input_decoder for interleaved model.

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244461016  by menglong:

    Add pre-bottleneck operation to lstm cells to support interleaved model.

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244052176  by menglong:

    Update README

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244020495  by menglong:

    Add test to rnn_decoder.

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243704250  by menglong:

    Duplicate assignment.

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243091836  by menglong:

    Move LSTMSSD meta arch into separate folder

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242900337  by menglong:

    Modified mobilenet definition for LSTM-SSD

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242...

* Add a second expected_loss_weights function using an alternative expectation calculation compared to previous. Integrate this op into ssd_meta_arch and losses builder. Affects files that use losses_builder.build to handle the returning of an additional element.

PiperOrigin-RevId: 219190083

* Fix dependency issues.

PiperOrigin-RevId: 222888231

* Update CODEOWNERS 

Add @masonliuw and @yinxiaoli to /research/lstm_object_detection/

PiperOrigin-RevId: 222888231

Add a second expected_loss_weights function using an alternative expectation calculation compared to previous. Integrate this op into ssd_meta_arch and losses builder. Affects files that use losses_builder.build to handle the returning of an additional element.

PiperOrigin-RevId: 219190083

PiperOrigin-RevId: 214714611

PiperOrigin-RevId: 213873057

PiperOrigin-RevId: 207936241

Refactor ssd_meta_arch so that the target assigner instance is passed into the SSDMetaArch constructor rather than constructed inside.

PiperOrigin-RevId: 207787053