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| author | Yanbo Liang <ybliang8@gmail.com> | 2015-08-31 16:06:38 -0700 |
|---|---|---|
| committer | Xiangrui Meng <meng@databricks.com> | 2015-08-31 16:06:38 -0700 |
| commit | fe16fd0b8b717f01151bc659ec3299dab091c97a (patch) | |
| tree | 8a3b9aab821f18a5b0370cf93ae98ec64e5fd194 /python/pyspark/ml/feature.py | |
| parent | 540bdee93103a73736d282b95db6a8cda8f6a2b1 (diff) | |
| download | spark-fe16fd0b8b717f01151bc659ec3299dab091c97a.tar.gz spark-fe16fd0b8b717f01151bc659ec3299dab091c97a.tar.bz2 spark-fe16fd0b8b717f01151bc659ec3299dab091c97a.zip | |
[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``` which will be more efficiency.
Author: Yanbo Liang <ybliang8@gmail.com>
Closes #8519 from yanboliang/spark-10349.
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