GitHub user MrBago opened a pull request:
https://github.com/apache/spark/pull/18077
Delegate looping over paramMaps to estimators
Changes:
pyspark.ml Estimators can take either a list of param maps or a dict of
params. This change allows the CrossValidator and TrainValidationSplit
Estimators to pass through lists of param maps to the underlying estimators so
that those estimators can handle parallelization when appropriate (eg
distributed hyper parameter tuning).
Testing:
Existing unit tests.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/MrBago/spark delegate_params
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/18077.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 #18077
----
commit 312030df1c3b4bfa08ee266f3d463e409da0b42f
Author: Bago Amirbekian <[email protected]>
Date: 2017-05-23T23:04:04Z
Delegate looping over paramMaps to estimator inside CrossValidator &
TrainValidationSplit.
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