[ https://issues.apache.org/jira/browse/SPARK-16494?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Yanbo Liang updated SPARK-16494: -------------------------------- 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 -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org