[ https://issues.apache.org/jira/browse/SPARK-20790?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-20790: ------------------------------------ Assignee: Apache Spark > ALS with implicit feedback ignores negative values > -------------------------------------------------- > > Key: SPARK-20790 > URL: https://issues.apache.org/jira/browse/SPARK-20790 > Project: Spark > Issue Type: Bug > Components: ML, MLlib > Affects Versions: 1.3.1, 1.4.0, 1.4.1, 1.5.0, 1.5.1, 1.5.2, 1.6.0, 1.6.1, > 1.6.2, 1.6.3, 2.0.0, 2.0.1, 2.0.2, 2.1.0, 2.1.1 > Reporter: David Eis > Assignee: Apache Spark > > The refactorization that was done in > https://github.com/apache/spark/pull/5314/files introduced a bug, whereby for > implicit feedback negative ratings just get ignored. Prior to that commit > they were not ignored, but the absolute value was used as the confidence and > the preference was set to 0. The preservation of comments and absolute value > indicate that this was unintentional. -- 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