GitHub user zero323 opened a pull request:
https://github.com/apache/spark/pull/9098
[SPARK-11084][ML][PYTHON] Check if index can contain non-zero value before
binary search
At this moment `SparseVector.__getitem__` executes `np.searchsorted` first
and checks if result is in an expected range after that. It is possible to
check if index can contain non-zero value before executing `np.searchsorted`.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/zero323/spark sparse_vector_getitem_improved
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/9098.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 #9098
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commit 7f1e455fff7f68508db39a5186d6894a9857b54c
Author: zero323 <matthew.szymkiew...@gmail.com>
Date: 2015-10-13T11:59:42Z
Check if index can contain non-zero value before binary search
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