Yuhao Yang 2f82c841fa [SPARK-5186] [MLLIB] Vector.equals and Vector.hashCode are very inefficient ... JIRA Issue: https://issues.apache.org/jira/browse/SPARK-5186 Currently SparseVector is using the inherited equals from Vector, which will create a full-size array for even the sparse vector. The pull request contains a specialized equals optimization that improves on both time and space. 1. The implementation will be consistent with the original. Especially it will keep equality comparison between SparseVector and DenseVector. Author: Yuhao Yang <hhbyyh@gmail.com> Author: Yuhao Yang <yuhao@yuhaodevbox.sh.intel.com> Closes #3997 from hhbyyh/master and squashes the following commits: 0d9d130 [Yuhao Yang] function name change and ut update 93f0d46 [Yuhao Yang] unify sparse vs dense vectors 985e160 [Yuhao Yang] improve locality for equals bdf8789 [Yuhao Yang] improve equals and rewrite hashCode for Vector a6952c3 [Yuhao Yang] fix scala style for comments 50abef3 [Yuhao Yang] fix ut for sparse vector with explicit 0 f41b135 [Yuhao Yang] iterative equals for sparse vector 5741144 [Yuhao Yang] Specialized equals for SparseVector		2015-01-20 15:20:20 -08:00
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src	[SPARK-5186] [MLLIB] Vector.equals and Vector.hashCode are very inefficient	2015-01-20 15:20:20 -08:00
pom.xml	[SPARK-4048] Enhance and extend hadoop-provided profile.	2015-01-08 17:15:13 -08:00