[ https://issues.apache.org/jira/browse/SPARK-11918?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Yanbo Liang updated SPARK-11918: -------------------------------- Description: Weighted Least Squares (WLS) is one of the optimization method for solve Linear Regression (when #feature < 4096). But if the dataset is very ill condition (such as 0-1 based label used for classification and with underdetermined equation), the WLS may failure. (was: Weighted Least Squares (WLS) is one of the optimization method for solve Linear Regression (when #feature < 4096). But if the label of the dataset is very ill condition (such as 0-1 based label used for classification), the WLS may failure. ) > WLS can not resolve some kinds of equation > ------------------------------------------ > > Key: SPARK-11918 > URL: https://issues.apache.org/jira/browse/SPARK-11918 > Project: Spark > Issue Type: Bug > Components: ML > Reporter: Yanbo Liang > > Weighted Least Squares (WLS) is one of the optimization method for solve > Linear Regression (when #feature < 4096). But if the dataset is very ill > condition (such as 0-1 based label used for classification and with > underdetermined equation), the WLS may failure. -- 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