[jira] [Commented] (HIVEMALL-275) Fix xgboost module to create DMatrix from CSRMatrix

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVEMALL-275?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16963840#comment-16963840 ] 

ASF GitHub Bot commented on HIVEMALL-275:
-----------------------------------------

myui commented on pull request #211: [WIP][HIVEMALL-275] Fix xgboost module to create DMatrix from CSRMatrix
URL: https://github.com/apache/incubator-hivemall/pull/211
 
 
   ## What changes were proposed in this pull request?
   
   Fix xgboost module to create DMatrix from CSRMatrix
   
   ## What type of PR is it?
   
   Refactoring
   
   ## What is the Jira issue?
   
   https://issues.apache.org/jira/browse/HIVEMALL-275
   
   ## How was this patch tested?
   
   unit tests and manual tests on EMR
   
   ## How to use this feature?
   
   as seen in https://gist.github.com/myui/aa6e142a95ca8f995cc8e49146dbe2eb
   
   ## Checklist
   
   - [x] Did you apply source code formatter, i.e., `./bin/format_code.sh`, for your commit?
   - [ ] Did you run system tests on Hive (or Spark)?
   
 
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> Fix xgboost module to create DMatrix from CSRMatrix
> ---------------------------------------------------
>
>                 Key: HIVEMALL-275
>                 URL: https://issues.apache.org/jira/browse/HIVEMALL-275
>             Project: Hivemall
>          Issue Type: Improvement
>            Reporter: Makoto Yui
>            Assignee: Makoto Yui
>            Priority: Minor
>             Fix For: 0.6.0
>
>
> DMatrix is created from LabelPoints but it consumes memory. So, support creating DMatrix directory from CSR matrix using [matrix4j|#L71].
> [https://github.com/dmlc/xgboost/blob/master/jvm-packages/xgboost4j/src/test/java/ml/dmlc/xgboost4j/java/DMatrixTest.java#L134]]



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