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https://issues.apache.org/jira/browse/SPARK-23455?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-23455:
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Assignee: (was: Apache Spark)
> Default Params in ML should be saved separately
> -----------------------------------------------
>
> Key: SPARK-23455
> URL: https://issues.apache.org/jira/browse/SPARK-23455
> Project: Spark
> Issue Type: Improvement
> Components: ML
> Affects Versions: 2.4.0
> Reporter: Liang-Chi Hsieh
> Priority: Major
>
> We save ML's user-supplied params and default params as one entity in JSON.
> During loading the saved models, we set all the loaded params into created ML
> model instances as user-supplied params.
> It causes some problems, e.g., if we strictly disallow some params to be set
> at the same time, a default param can fail the param check because it is
> treated as user-supplied param after loading.
> The loaded default params should not be set as user-supplied params. We
> should save ML default params separately in JSON.
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