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https://issues.apache.org/jira/browse/MAHOUT-886?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13150011#comment-13150011
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Sean Owen commented on MAHOUT-886:
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It looks OK to me, and passes tests, and I trust that tom's looked into this
enough to confirm it's a fix. Robin any thoughts before I commit?
> FPtree nodes multiply-added (becoming siblings in tree)
> -------------------------------------------------------
>
> Key: MAHOUT-886
> URL: https://issues.apache.org/jira/browse/MAHOUT-886
> Project: Mahout
> Issue Type: Bug
> Components: Frequent Itemset/Association Rule Mining
> Affects Versions: 0.6
> Reporter: tom pierce
> Attachments: MAHOUT-886.patch
>
>
> In FPGrowth#traverseAndBuildConditionalFPTreeData, while creating a
> conditional FPtree sometimes nodes are multiply-added as children of the same
> node, becoming siblings in the conditional tree.
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