Xiangrui Meng created SPARK-4587:
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Summary: Model export/import
Key: SPARK-4587
URL: https://issues.apache.org/jira/browse/SPARK-4587
Project: Spark
Issue Type: New Feature
Components: ML, MLlib
Reporter: Xiangrui Meng
Priority: Critical
This is an umbrella JIRA for one of the most requested features on the user
mailing list. Model export/import can be done via Java serialization. But it
doesn't work for models stored distributively, e.g., ALS and LDA. Ideally, we
should provide save/load methods to every model. PMML is an option but it has
its limitations. There are couple things we need to discuss: 1) data format, 2)
how to preserve partitioning, 3) data compatibility between versions and
language APIs, etc.
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