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https://issues.apache.org/jira/browse/SPARK-16494?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yanbo Liang updated SPARK-16494:
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Description:
breeze 0.12 has been released for more than half a year, and it brings lots of
new features, performance improvement and bug fixes.
One of the biggest features is LBFGS-B which is an implementation of LBFGS with
box constraints and much faster for some special case.
We would like to implement Huber loss function for {{LinearRegression}}
(SPARK-3181) and it requires LBFGS-B as the optimization solver. So we should
bump up the dependent breeze version to 0.12.
For more features, improvements and bug fixes of breeze 0.12, you can refer the
following link:
https://groups.google.com/forum/#!topic/scala-breeze/nEeRi_DcY5c
was:
breeze 0.12 has been released for more than half a year, and it brings lots of
new features, performance improvement and bug fixes.
One of the biggest features is L-BFGS-B which is a first order optimizer than
accepts box constraints and more faster for some special cases.
Sine we would like to implement Huber loss function for {{LinearRegression}}
(SPARK-3181) and it requires L-BFGS-B as the optimization solver. So we should
bump up the dependent breeze version to 0.12.
For more features, improvements and bug fixes of breeze 0.12, you can refer the
following link:
https://groups.google.com/forum/#!topic/scala-breeze/nEeRi_DcY5c
> Upgrade breeze to 0.12
> ----------------------
>
> Key: SPARK-16494
> URL: https://issues.apache.org/jira/browse/SPARK-16494
> Project: Spark
> Issue Type: Improvement
> Components: ML, MLlib
> Reporter: Yanbo Liang
>
> breeze 0.12 has been released for more than half a year, and it brings lots
> of new features, performance improvement and bug fixes.
> One of the biggest features is LBFGS-B which is an implementation of LBFGS
> with box constraints and much faster for some special case.
> We would like to implement Huber loss function for {{LinearRegression}}
> (SPARK-3181) and it requires LBFGS-B as the optimization solver. So we should
> bump up the dependent breeze version to 0.12.
> For more features, improvements and bug fixes of breeze 0.12, you can refer
> the following link:
> https://groups.google.com/forum/#!topic/scala-breeze/nEeRi_DcY5c
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