GitHub user feynmanliang opened a pull request:
https://github.com/apache/spark/pull/7360
[SPARK-8997][MLlib]Performance improvements in LocalPrefixSpan
Improves the performance of LocalPrefixSpan by implementing optimizations
proposed in SPARK-8997
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/feynmanliang/spark
SPARK-8997-improve-prefixspan
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/7360.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 #7360
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commit 70b93e32d2c1e4b7d09197a136404db661a0f95a
Author: Feynman Liang <[email protected]>
Date: 2015-07-12T23:48:27Z
Performance improvements in LocalPrefixSpan, fix tests
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