GitHub user daniel-acuna opened a pull request:
https://github.com/apache/spark/pull/3325
Logistic regression gradient fixed
The gradient of the logistic regression was not accurate. Please see last
equation on page 18 from Andrew Ng's lecture notes
(http://cs229.stanford.edu/notes/cs229-notes1.pdf)
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/daniel-acuna/spark master
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/3325.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 #3325
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commit 89aa9789e822aee96bf8934797ae7f3f01625ce3
Author: Daniel Acuna <[email protected]>
Date: 2014-11-17T20:12:32Z
Logistic regression gradient fixed
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