[jira] [Updated] (MAHOUT-737) Implicit Alternating Least Squares SVD

["Tamas Jambor (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MAHOUT-737?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tamas Jambor updated MAHOUT-737:
--------------------------------

    Attachment: MAHOUT-737.patch

small changes

> Implicit Alternating Least Squares SVD
> --------------------------------------
>
>                 Key: MAHOUT-737
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-737
>             Project: Mahout
>          Issue Type: Improvement
>            Reporter: Tamas Jambor
>            Assignee: Sebastian Schelter
>         Attachments: 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). 

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