GitHub user WeichenXu123 opened a pull request:
https://github.com/apache/spark/pull/19350
[SPARK-22126][ML] Fix model-specific optimization support for ML tuning
## What changes were proposed in this pull request?
Push down fitting parallelization code from
CrossValidator/TrainValidationSplit into Estimators.
See discussions in SPARK-19357.
## How was this patch tested?
N/A
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/WeichenXu123/spark fix_model_spec_optim
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/19350.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #19350
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commit d5625a6c9443ad9fc44bbe8febc35d837074acee
Author: WeichenXu <weichen...@databricks.com>
Date: 2017-09-26T07:38:46Z
init pr
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