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https://issues.apache.org/jira/browse/MADLIB-1421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17069042#comment-17069042
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Frank McQuillan commented on MADLIB-1421:
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Could you please give an example of the workflow that you envision?

NPZ is a compressed format for storing Numpy arrays
https://docs.scipy.org/doc/numpy/reference/routines.io.html#npz-files
and not (to my knowledge) for storying model descriptions in Keras or 
TensorFlow.

Keras model description are typically stored in JSON and YAML
https://keras.io/getting-started/faq/#savingloading-only-a-models-architecture
so we decided to support JSON.

Please provide a bit more information on what you would like here.

Thanks



> Support npz format
> ------------------
>
>                 Key: MADLIB-1421
>                 URL: https://issues.apache.org/jira/browse/MADLIB-1421
>             Project: Apache MADlib
>          Issue Type: New Feature
>            Reporter: Hubert Zhang
>            Priority: Major
>
> Currently, we only support pass json format model.
> Better to support npz format in future.



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