GitHub user WeichenXu123 opened a pull request:
https://github.com/apache/spark/pull/14520
[SPARK-16934][ML][MLLib] Improve LogisticCostFun to avoid redundant
serielization
## What changes were proposed in this pull request?
Improve LogisticCostFun, replace closure var `localFeaturesStd` with
broadcast var,
so it can avoid redundant serialization for each calling.
and make several other modifications to make it similar to the patterns in
https://github.com/apache/spark/pull/14109
## How was this patch tested?
Existing test.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/WeichenXu123/spark
improve_logistic_regression_costfun
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/14520.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 #14520
----
commit 417aa1ea623b10d0d7b9f13b3d3f65fa8ac64ce8
Author: WeichenXu <[email protected]>
Date: 2016-08-05T01:28:18Z
update
----
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
