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https://issues.apache.org/jira/browse/SPARK-9610?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16219005#comment-16219005
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Barry Becker commented on SPARK-9610:
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Frequent item sets (associations) could use it too.
> Class and instance weighting for ML
> -----------------------------------
>
> Key: SPARK-9610
> URL: https://issues.apache.org/jira/browse/SPARK-9610
> Project: Spark
> Issue Type: Umbrella
> Components: ML
> Reporter: Joseph K. Bradley
>
> This umbrella is for tracking tasks for adding support for label or instance
> weights to ML algorithms. These additions will help handle skewed or
> imbalanced data, ensemble methods, etc.
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