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Subject [GitHub] [spark] tgravescs commented on issue #25983: [SPARK-29327][MLLIB]Support specifying features via multiple columns
Date Wed, 23 Oct 2019 16:14:36 GMT
tgravescs commented on issue #25983: [SPARK-29327][MLLIB]Support specifying features via multiple
columns
URL: https://github.com/apache/spark/pull/25983#issuecomment-545521402
 
 
   yes we have an actual implementation that is using this for XGBoost running on GPUs.  This
version takes advantage of the columnar layout.  @firestarman should have the code for the
XGBoost CPU side as well that could side step creating the vector, which he should be able
to point us to.
   
    We thought it would be a good api addition for convenience and allow the  benefits I stated
above.   

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