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| author | MechCoder <manojkumarsivaraj334@gmail.com> | 2015-07-07 08:59:52 -0700 |
|---|---|---|
| committer | Xiangrui Meng <meng@databricks.com> | 2015-07-07 08:59:52 -0700 |
| commit | 738c10748b49eb8a475d1fd26c6a271ca36497cf (patch) | |
| tree | a0d4dd94fdccb12934a40435fbd8fa8c0716b136 /ec2 | |
| parent | 1dbc4a155f3697a3973909806be42a1be6017d12 (diff) | |
| download | spark-738c10748b49eb8a475d1fd26c6a271ca36497cf.tar.gz spark-738c10748b49eb8a475d1fd26c6a271ca36497cf.tar.bz2 spark-738c10748b49eb8a475d1fd26c6a271ca36497cf.zip | |
[SPARK-8823] [MLLIB] [PYSPARK] Optimizations for SparseVector dot products
Follow up for https://github.com/apache/spark/pull/5946
Currently we iterate over indices and values in SparseVector and can be vectorized.
Author: MechCoder <manojkumarsivaraj334@gmail.com>
Closes #7222 from MechCoder/sparse_optim and squashes the following commits:
dcb51d3 [MechCoder] [SPARK-8823] [MLlib] [PySpark] Optimizations for SparseVector dot product
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