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https://issues.apache.org/jira/browse/MADLIB-1309?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Frank McQuillan reassigned MADLIB-1309:
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Assignee: Frank McQuillan
> Change the way we pass compile_params and fit_params to madlib_keras.fit and
> madlib_keras.predict
> -------------------------------------------------------------------------------------------------
>
> Key: MADLIB-1309
> URL: https://issues.apache.org/jira/browse/MADLIB-1309
> Project: Apache MADlib
> Issue Type: Improvement
> Components: Deep Learning
> Reporter: Nandish Jayaram
> Assignee: Frank McQuillan
> Priority: Major
> Fix For: v1.16
>
>
> Based on the code in PR [https://github.com/apache/madlib/pull/355:]
> Currently we have to pass in the compile_params and fit_params as follows
> {code}
> SELECT madlib.madlib_keras_fit(... , '''optimizer''=SGD(lr=0.01, decay=1e-6,
> nesterov=True), ''loss''=''categorical_crossentropy'',
> ''metrics''=[''accuracy'']'::text,
> ,'''batch_size''=2, ''epochs''=1, ''verbose''=0'::text ...)
> {code}
> Internally in the code we use a function called
> `convert_string_of_args_to_dict` which does some string parsing and then
> calls eval to create a dictionary. This is bug prone and unsafe. We should
> look into using the function `extract_keyvalue_params` (might have to change
> it. We can easily write a unit test for `extract_keyvalue_params`)
> We should also think about how complicated compile_params can get and how can
> we generalize the code.
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