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Posted to issues@spark.apache.org by "Liang-Chi Hsieh (JIRA)" <ji...@apache.org> on 2018/02/17 05:36:00 UTC

[jira] [Created] (SPARK-23455) Default Params in ML should be saved separately

Liang-Chi Hsieh created SPARK-23455:
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             Summary: 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


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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