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From "Saikat Kanjilal (JIRA)" <>
Subject [jira] [Commented] (MAHOUT-1464) RowSimilarityJob on Spark
Date Sun, 23 Mar 2014 19:18:45 GMT


Saikat Kanjilal commented on MAHOUT-1464:

Can I help out on this issue or are you actively planning to fix on your own?

> RowSimilarityJob on Spark
> -------------------------
>                 Key: MAHOUT-1464
>                 URL:
>             Project: Mahout
>          Issue Type: Improvement
>          Components: Collaborative Filtering
>    Affects Versions: 0.9
>         Environment: hadoop, spark
>            Reporter: Pat Ferrel
>              Labels: performance
>             Fix For: 1.0
>         Attachments: MAHOUT-1464.patch, MAHOUT-1464.patch, MAHOUT-1464.patch
> Create a version of RowSimilarityJob that runs on Spark. Ssc has a prototype here:
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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