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https://issues.apache.org/jira/browse/SPARK-7615?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14543981#comment-14543981
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Sean Owen commented on SPARK-7615:
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Yes the submitter is about to open another PR, as I understand it.
> MLLIB Word2Vec wordVectors divided by Euclidean Norm equals to zero
> --------------------------------------------------------------------
>
> Key: SPARK-7615
> URL: https://issues.apache.org/jira/browse/SPARK-7615
> Project: Spark
> Issue Type: Bug
> Components: MLlib
> Affects Versions: 1.3.1
> Reporter: Eric Li
> Priority: Minor
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> In Word2VecModel, wordVecNorms may contains Euclidean Norm equals to zero.
> This will cause incorrect calculation for cosine distance. when you do
> cosineVec(ind) / wordVecNorms(ind). Cosine distance should be equal to 0 for
> norm = 0.
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