[jira] [Assigned] (SPARK-20348) Support squared hinge loss (L2 loss) for LinearSVC
[ https://issues.apache.org/jira/browse/SPARK-20348?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Apache Spark reassigned SPARK-20348: Assignee: Apache Spark > Support squared hinge loss (L2 loss) for LinearSVC > -- > > Key: SPARK-20348 > URL: https://issues.apache.org/jira/browse/SPARK-20348 > Project: Spark > Issue Type: New Feature > Components: ML >Affects Versions: 2.2.0 >Reporter: yuhao yang >Assignee: Apache Spark >Priority: Minor > > While Hinge loss is the standard loss function for linear SVM, Squared hinge > loss (a.k.a. L2 loss) is also popular in practice. L2-SVM is differentiable > and imposes a bigger (quadratic vs. linear) loss for points which violate the > margin. Some introduction can be found from > http://mccormickml.com/2015/01/06/what-is-an-l2-svm/ > Liblinear and [scikit > learn|http://scikit-learn.org/stable/modules/generated/sklearn.svm.LinearSVC.html] > both offer squared hinge loss as the default loss function for linear SVM. -- This message was sent by Atlassian JIRA (v6.3.15#6346) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
[jira] [Assigned] (SPARK-20348) Support squared hinge loss (L2 loss) for LinearSVC
[ https://issues.apache.org/jira/browse/SPARK-20348?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Apache Spark reassigned SPARK-20348: Assignee: (was: Apache Spark) > Support squared hinge loss (L2 loss) for LinearSVC > -- > > Key: SPARK-20348 > URL: https://issues.apache.org/jira/browse/SPARK-20348 > Project: Spark > Issue Type: New Feature > Components: ML >Affects Versions: 2.2.0 >Reporter: yuhao yang >Priority: Minor > > While Hinge loss is the standard loss function for linear SVM, Squared hinge > loss (a.k.a. L2 loss) is also popular in practice. L2-SVM is differentiable > and imposes a bigger (quadratic vs. linear) loss for points which violate the > margin. Some introduction can be found from > http://mccormickml.com/2015/01/06/what-is-an-l2-svm/ > Liblinear and [scikit > learn|http://scikit-learn.org/stable/modules/generated/sklearn.svm.LinearSVC.html] > both offer squared hinge loss as the default loss function for linear SVM. -- This message was sent by Atlassian JIRA (v6.3.15#6346) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
