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Posted to issues@spark.apache.org by "Vladimir Feinberg (JIRA)" <ji...@apache.org> on 2016/08/08 20:48:20 UTC
[jira] [Commented] (SPARK-12381) Copy public decision tree helper
classes from spark.mllib to spark.ml and make private
[ https://issues.apache.org/jira/browse/SPARK-12381?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15412438#comment-15412438 ]
Vladimir Feinberg commented on SPARK-12381:
-------------------------------------------
[~sethah] Just so we don't clash, I think these two JIRAs are overlapping: SPARK-16728
> Copy public decision tree helper classes from spark.mllib to spark.ml and make private
> --------------------------------------------------------------------------------------
>
> Key: SPARK-12381
> URL: https://issues.apache.org/jira/browse/SPARK-12381
> Project: Spark
> Issue Type: Sub-task
> Components: ML, MLlib
> Reporter: Seth Hendrickson
>
> The helper classes for decision trees and decision tree ensembles (e.g. Impurity, InformationGainStats, ImpurityStats, DTStatsAggregator, etc...) currently reside in spark.mllib, but as the algorithm implementations are moved to spark.ml, so should these helper classes.
> We should take this opportunity to make some of those helper classes private when possible (especially if they are only needed during training) and maybe change the APIs (especially if we can eliminate duplicate data stored in the final model).
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