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https://issues.apache.org/jira/browse/SPARK-21770?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16138211#comment-16138211
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Yanbo Liang commented on SPARK-21770:
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I think we are talking about the same thing, change probability prediction from
[0.0, 0.0, 0.0, 0.0] to [0.25, 0.25, 0.25, 0.25], right?
> ProbabilisticClassificationModel: Improve normalization of all-zero raw
> predictions
> -----------------------------------------------------------------------------------
>
> Key: SPARK-21770
> URL: https://issues.apache.org/jira/browse/SPARK-21770
> Project: Spark
> Issue Type: Improvement
> Components: ML
> Affects Versions: 2.3.0
> Reporter: Siddharth Murching
> Priority: Minor
>
> Given an n-element raw prediction vector of all-zeros,
> ProbabilisticClassifierModel.normalizeToProbabilitiesInPlace() should output
> a probability vector of all-equal 1/n entries
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