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https://issues.apache.org/jira/browse/SPARK-19057?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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zhengruifeng closed SPARK-19057.
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Resolution: Won't Fix
> Instance weights must be non-negative
> -------------------------------------
>
> Key: SPARK-19057
> URL: https://issues.apache.org/jira/browse/SPARK-19057
> Project: Spark
> Issue Type: Improvement
> Components: ML
> Reporter: zhengruifeng
> Priority: Trivial
>
> It looks like that negative-weighted instances make no sense and can cause
> divergence in ml algs.
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