org.apache.mahout.math.DiagonalMatrix It even supports sparse values in the diagonal!
On Fri, Jan 13, 2012 at 9:00 AM, Tamas Jambor (Commented) (JIRA) <[email protected]> wrote: > > [ > https://issues.apache.org/jira/browse/MAHOUT-737?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13185670#comment-13185670 > ] > > Tamas Jambor commented on MAHOUT-737: > ------------------------------------- > > I think so. When will you be releasing 0.6? I am planning to do a bit more > extensive testing in the next 2-3 weeks. > >> Implicit Alternating Least Squares SVD >> -------------------------------------- >> >> Key: MAHOUT-737 >> URL: https://issues.apache.org/jira/browse/MAHOUT-737 >> Project: Mahout >> Issue Type: New Feature >> Components: Collaborative Filtering >> Affects Versions: 0.6 >> Reporter: Tamas Jambor >> Assignee: Sebastian Schelter >> Attachments: MAHOUT-737-2.patch, MAHOUT-737.patch, MAHOUT-737.patch, >> MAHOUT-737.patch, MAHOUT-737.patch >> >> >> I am sharing this Java implementation of mine that is based on the paper - >> Collaborative Filtering with Implicit Datasets. The implementation is >> multi-treading and can be easily extended to use it on Hadoop. In fact this >> approach would possibly work with non-implicit datasets, but further testing >> is needed. The algorithm is tried and tested on an implicit TV-viewing >> dataset, and the performance was pretty good (details to follow). > > -- > This message is automatically generated by JIRA. > If you think it was sent incorrectly, please contact your JIRA > administrators: > https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa > For more information on JIRA, see: http://www.atlassian.com/software/jira > > -- Lance Norskog [email protected]
