[jira] [Created] (MADLIB-1478) DL: Passing in a custom function table to fit along with built in loss and metrics functions errors out

["Frank McQuillan (Jira)" <ji...@apache.org>]

Frank McQuillan created MADLIB-1478:
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             Summary: DL: Passing in a custom function table to fit along with built in loss and metrics functions errors out
                 Key: MADLIB-1478
                 URL: https://issues.apache.org/jira/browse/MADLIB-1478
             Project: Apache MADlib
          Issue Type: Bug
          Components: Deep Learning
            Reporter: Frank McQuillan
             Fix For: v1.19.0


Passing in a custom function table to fit along with built in loss and metrics functions errors out

{code}
SELECT madlib.load_top_k_accuracy_function('custom_function_table',
                                           3);
SELECT madlib.madlib_keras_fit('iris_data_packed', 'iris_model','iris_model_arch',1,
$$loss='categorical_crossentropy',optimizer='Adam(lr=0.1)',metrics=['accuracy']$$,
$$batch_size=10,epochs=1$$,1, FALSE, NULL, NULL, FALSE,NULL,NULL,'custom_function_table');


DETAIL:  Traceback (most recent call last):\n  File "<string>", line 11, in __plpython_procedure_fit_transition_wide_359961\n  File "/Users/nikhilkak/workspace/madlib/build/src/ports/greenplum/6/modules/deep_learning/madlib_keras.py", line 579, in fit_transition_wide\n  File "/Users/nikhilkak/workspace/madlib/build/src/ports/greenplum/6/modules/deep_learning/madlib_keras.py", line 618, in fit_transition\n  File "/Users/nikhilkak/workspace/madlib/build/src/ports/greenplum/6/modules/deep_learning/madlib_keras.py", line 91, in get_init_model_and_sess\n  File "/Users/nikhilkak/workspace/madlib/build/src/ports/greenplum/6/modules/deep_learning/madlib_keras.py", line 551, in init_model\n  File "/Users/nikhilkak/workspace/madlib/build/src/ports/greenplum/6/modules/deep_learning/madlib_keras_wrapper.py", line 347, in compile_model\n  File "/Library/Python/2.7/site-packages/dill/_dill.py", line 283, in loads\n    return load(file, ignore, **kwds)\n  File "/Library/Python/2.7/site-packages/dill/_dill.py", line 278, in load\n    return Unpickler(file, ignore=ignore, **kwds).load()\n  File "/Library/Python/2.7/site-packages/dill/_dill.py", line 481, in load\n    obj = StockUnpickler.load(self)\n  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/pickle.py", line 864, in load\n    dispatch[key](self)\nKeyError: \'{\'\n' (plpy_elog.c:121)  (seg0 slice1 127.0.0.1:6002 pid=85404)
{code}



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