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https://issues.apache.org/jira/browse/SPARK-7126?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joseph K. Bradley updated SPARK-7126:
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Target Version/s: (was: 1.5.0)
> For spark.ml Classifiers, automatically index labels if they are not yet
> indexed
> --------------------------------------------------------------------------------
>
> Key: SPARK-7126
> URL: https://issues.apache.org/jira/browse/SPARK-7126
> Project: Spark
> Issue Type: Improvement
> Components: ML
> Affects Versions: 1.4.0
> Reporter: Joseph K. Bradley
>
> Now that we have StringIndexer, we could have
> spark.ml.classification.Classifier (the abstraction) automatically handle
> label indexing if the labels are not yet indexed.
> This would require a bit of design:
> * Should predict() output the original labels or the indices?
> * How should we notify users that the labels are being automatically indexed?
> * How should we provide that index to the users?
> * If multiple parts of a Pipeline automatically index labels, what do we need
> to do to make sure they are consistent?
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