[jira] [Comment Edited] (MAHOUT-1464) RowSimilarityJob on Spark

["Pat Ferrel (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MAHOUT-1464?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13937925#comment-13937925 ] 

Pat Ferrel edited comment on MAHOUT-1464 at 3/17/14 3:33 PM:
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Good news. At the risk of asking for too much, what are your thoughts on the XRSJ,  MAHOUT-1422? Speaking for myself I'd rather have MAHOUT-1464 than nothing.

Also for testing would you recommend Hadoop 2 for Spark? it seems to be their recommended setup but I have 1.2.1 now.


was (Author: pferrel):
Good news. At the danger of asking for too much, what are your thought on the XRSJ,  MAHOUT-1422? Speaking for myself I'd rather have MAHOUT-1464 than nothing.

Also for testing would you recommend Hadoop 2 for Spark? it seems to be their recommended setup but I have 1.2.1 now.

> RowSimilarityJob on Spark
> -------------------------
>
>                 Key: MAHOUT-1464
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1464
>             Project: Mahout
>          Issue Type: Improvement
>          Components: Collaborative Filtering
>    Affects Versions: 0.9
>         Environment: hadoop, spark
>            Reporter: Pat Ferrel
>              Labels: performance
>             Fix For: 0.9
>
>
> Create a version of RowSimilarityJob that runs on Spark. Ssc has a prototype here: https://gist.github.com/sscdotopen/8314254. This should be compatible with Mahout Spark DRM DSL so a DRM can be used as input. 
> Ideally this would extend to cover MAHOUT-1422 which is a feature request for RSJ on two inputs to calculate the similarity of rows of one DRM with those of another. This cross-similarity has several applications including cross-action recommendations. 



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