GitHub user catap opened a pull request:
https://github.com/apache/spark/pull/6795
[SPARK-8341] Significant selector feature transformation
Idea of this transformation it safe reduce big vector that was produced by
Hashing TF for example
for reduce requirement of memory for manipulation on them.
This transformation create a model that keep only indices that has
different values on fit stage.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/catap/spark significant_selector
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/6795.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 #6795
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commit 93bdda03d7ecb69a7d1a211f109ef8aa7f78225a
Author: Kirill A. Korinskiy <[email protected]>
Date: 2015-06-13T09:01:09Z
[SPARK-8341] Significant selector feature transformation
Idea of this transformation it safe reduce big vector that was produced by
Hashing TF for example
for reduce requirement of memory for manipulation on them.
This transformation create a model that keep only indices that has
different values on fit stage.
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