Github user manishamde commented on the pull request:
https://github.com/apache/spark/pull/1941#issuecomment-52231336
@emef Yup. GBT, AdaBoost and RF implementations will also benefits from
this LabeledPointConversion. Each will extend the TreePoint class in different
ways: 1) GBT will add pseudo-residuals, 2) AdaBoost will add sample weights,
and 3) RF will add poisson resampled weights for trees.
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