Frank McQuillan created MADLIB-1429:
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Summary: DL - utility to load and delete custom Python functions
Key: MADLIB-1429
URL: https://issues.apache.org/jira/browse/MADLIB-1429
Project: Apache MADlib
Issue Type: Improvement
Reporter: Frank McQuillan
Many deep learning models require loss functions and metrics that are not part
of the standard deep learning libraries.
In order to pass along this object to Keras, we want to create a table which
the user will populate with a pickled object mapping to the custom function.
We can model this utility on
http://madlib.apache.org/docs/latest/group__grp__keras__model__arch.html which
loads models into a model arch table.
As part of this story, we want to create a utility function with the following
api:
{code}
load_custom_function(
object_table VARCHAR, -- output table
object BYTEA, -- bytea object for custom function
name VARCHAR, -- function name (must be unique)
description VARCHAR -- description (optional)
)
{code}
Creates the following output table:
{code}
|id | name | description | function |
|---|-----------------|---------------|-------------|
|1 | keras_custom_fn | test function | \x80026... |
{code}
As part of this story, we want a delete utility function with the following api:
{code}
delete_custom_function(
object_table VARCHAR, -- table containing the Python object
id -- id of object to delete
)
{code}
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