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Posted to dev@mahout.apache.org by "Hudson (JIRA)" <ji...@apache.org> on 2010/08/14 00:40:22 UTC

[jira] Commented: (MAHOUT-462) RecommenderJob should use simple cooccurrence as default similarity measure

    [ https://issues.apache.org/jira/browse/MAHOUT-462?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12898454#action_12898454 ] 

Hudson commented on MAHOUT-462:
-------------------------------

Integrated in Mahout-Quality #186 (See [http://hudson.zones.apache.org/hudson/job/Mahout-Quality/186/])
    MAHOUT-462


> RecommenderJob should use simple cooccurrence as default similarity measure
> ---------------------------------------------------------------------------
>
>                 Key: MAHOUT-462
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-462
>             Project: Mahout
>          Issue Type: Improvement
>          Components: Collaborative Filtering
>            Reporter: Sebastian Schelter
>            Assignee: Sean Owen
>            Priority: Minor
>             Fix For: 0.4
>
>         Attachments: MAHOUT-462.patch
>
>
> To make the new version of RecommenderJob more consistent with the past behavior we should use simple cooccurrence (org.apache.mahout.math.hadoop.similarity.vector.DistributedCooccurrenceVectorSimilarity) as default similarity measure when no similarity classname is supplied.

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