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https://issues.apache.org/jira/browse/SYSTEMML-700?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15518645#comment-15518645
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Matthias Boehm commented on SYSTEMML-700:
-----------------------------------------

thanks for the clarification - this requires probably a larger discussion but I 
would like to generalize this to all our classification algorithms, especially 
decision tree/random forest which require heavy input preparation.

> Inflexible category labels for Multinomial Logistic Regression
> --------------------------------------------------------------
>
>                 Key: SYSTEMML-700
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-700
>             Project: SystemML
>          Issue Type: Bug
>          Components: Algorithms
>            Reporter: Jeremy
>            Priority: Minor
>   Original Estimate: 4h
>  Remaining Estimate: 4h
>
> The Logistic Regression algorithm requires that category labels be labeled as 
> 0 up to the number of classes-1. It should be able to handle any set of 
> category labels provided by the user. B_out should have the appropriate size 
> regardless of the values of the labels given, and the algorithm should also 
> preserve the original labeling for the user.



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