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https://issues.apache.org/jira/browse/SPARK-21523?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16167033#comment-16167033
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Ihor Bobak commented on SPARK-21523:
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For us it is also critical issue: we faced with the same problem.
> Fix bug of strong wolfe linesearch `init` parameter lose effectiveness
> ----------------------------------------------------------------------
>
> Key: SPARK-21523
> URL: https://issues.apache.org/jira/browse/SPARK-21523
> Project: Spark
> Issue Type: Bug
> Components: MLlib
> Affects Versions: 2.2.0
> Reporter: Weichen Xu
> Assignee: Weichen Xu
> Priority: Critical
> Fix For: 2.2.1, 2.3.0
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> We need merge this breeze bugfix into spark because it influence a series of
> algos in MLlib which use LBFGS.
> https://github.com/scalanlp/breeze/pull/651
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