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Posted to issues@spark.apache.org by "Seth Hendrickson (JIRA)" <ji...@apache.org> on 2016/08/18 18:09:20 UTC

[jira] [Created] (SPARK-17137) Add compressed support for multinomial logistic regression coefficients

Seth Hendrickson created SPARK-17137:
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             Summary: Add compressed support for multinomial logistic regression coefficients
                 Key: SPARK-17137
                 URL: https://issues.apache.org/jira/browse/SPARK-17137
             Project: Spark
          Issue Type: Sub-task
          Components: ML
            Reporter: Seth Hendrickson
            Priority: Minor


For sparse coefficients in MLOR, such as when high L1 regularization, it may be more efficient to store coefficients in compressed format. We can add this option to MLOR and perhaps to do some performance tests to verify improvements.



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