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Subject [GitHub] [madlib] reductionista opened a new pull request #524: DL: Support Tensorboard
Date Mon, 16 Nov 2020 20:42:37 GMT

reductionista opened a new pull request #524:

   We don't want to allow arbitrary custom callback functions, but we can make a special exception
for TensorBoard.
   With this commit, users will be able to get realtime feedback on accuracy and loss while
training, as well as visualize the tensor graph of the keras model they've submitted.
   1.  Add callback to TensorBoard to fit_params:
   2.  Start tensorboard before training or prediction with MADlib deep learning module:
       tensorboard --logdir='/tmp/tensorflow/scalars'
   To quickly enable it for an entire model selection table:
   update mst_table set fit_params = (fitparams || ', callbacks=[TensorBoard(log_dir="/tmp/tensorflow/scalars")]');
   We should look over it carefully to make sure this doesn't add significant security risk
before merging.

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