[ https://issues.apache.org/jira/browse/SPARK-3728?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15368216#comment-15368216 ]
Manoj Kumar commented on SPARK-3728: ------------------------------------ Hi [~xusen]. Are you still working on this? > RandomForest: Learn models too large to store in memory > ------------------------------------------------------- > > Key: SPARK-3728 > URL: https://issues.apache.org/jira/browse/SPARK-3728 > Project: Spark > Issue Type: Improvement > Components: MLlib > Reporter: Joseph K. Bradley > > Proposal: Write trees to disk as they are learned. > RandomForest currently uses a FIFO queue, which means training all trees at > once via breadth-first search. Using a FILO queue would encourage the code > to finish one tree before moving on to new ones. This would allow the code > to write trees to disk as they are learned. > Note: It would also be possible to write nodes to disk as they are learned > using a FIFO queue, once the example--node mapping is cached [JIRA]. The > [Sequoia Forest package]() does this. However, it could be useful to learn > trees progressively, so that future functionality such as early stopping > (training fewer trees than expected) could be supported. -- 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