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https://issues.apache.org/jira/browse/SPARK-21027?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-21027:
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Assignee: Apache Spark
> Parallel One vs. Rest Classifier
> --------------------------------
>
> Key: SPARK-21027
> URL: https://issues.apache.org/jira/browse/SPARK-21027
> Project: Spark
> Issue Type: New Feature
> Components: PySpark
> Affects Versions: 2.2.0, 2.2.1
> Reporter: Ajay Saini
> Assignee: Apache Spark
>
> Currently, the Scala implementation of OneVsRest allows the user to run a
> parallel implementation in which each class is evaluated in a different
> thread. This implementation allows up to a 2X speedup as determined by
> experiments but is not currently not tunable. Furthermore, the python
> implementation of OneVsRest does not parallelize at all. It would be useful
> to add a parallel, tunable implementation of OneVsRest to the python library
> in order to speed up the algorithm.
> A ticket for the Scala implementation of this classifier is here:
> https://issues.apache.org/jira/browse/SPARK-21028
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