[
https://issues.apache.org/jira/browse/SPARK-18062?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15597464#comment-15597464
]
Sean Owen commented on SPARK-18062:
-----------------------------------
In the spirit of throwing errors on invalid input, shouldn't this be an error
(perhaps earlier)? the input says all classes are impossible, and normalization
can't change that.
> ProbabilisticClassificationModel.normalizeToProbabilitiesInPlace should
> return probabilities when given all-0 vector
> --------------------------------------------------------------------------------------------------------------------
>
> Key: SPARK-18062
> URL: https://issues.apache.org/jira/browse/SPARK-18062
> Project: Spark
> Issue Type: Improvement
> Components: ML
> Reporter: Joseph K. Bradley
> Priority: Trivial
>
> {{ProbabilisticClassificationModel.normalizeToProbabilitiesInPlace}} returns
> a vector of all-0 when given a rawPrediction vector of all-0. It should
> return a valid probability vector with the uniform distribution.
> Note: This will be a *behavior change* but it should be very minor and affect
> few if any users. But we should note it in release notes.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
