GitHub user yanboliang opened a pull request:
https://github.com/apache/spark/pull/8519
[SPARK-10349] [ML] OneVsRest use 'when ... otherwise' not UDF to generate
new label at binary reduction
Currently OneVsRest use UDF to generate new binary label during training.
Considering that
[SPARK-7321](https://issues.apache.org/jira/browse/SPARK-7321) has been merged,
we can use ```when ... otherwise```.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/yanboliang/spark spark-10349
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/8519.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 #8519
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commit 3ffdd36860f1d982c0a0cd50118a9e38c7c1313c
Author: Yanbo Liang <[email protected]>
Date: 2015-08-29T08:53:34Z
OneVsRest use 'when ... otherwise' not UDF to generate new label at binary
reduction
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