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Posted to dev@mahout.apache.org by "Hudson (JIRA)" <ji...@apache.org> on 2011/03/07 12:15:59 UTC

[jira] Commented: (MAHOUT-619) Add normalized discounted cumulative gain to recommender evaluator

    [ https://issues.apache.org/jira/browse/MAHOUT-619?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13003327#comment-13003327 ] 

Hudson commented on MAHOUT-619:
-------------------------------

Integrated in Mahout-Quality #660 (See [https://hudson.apache.org/hudson/job/Mahout-Quality/660/])
    MAHOUT-619


> Add normalized discounted cumulative gain to recommender evaluator
> ------------------------------------------------------------------
>
>                 Key: MAHOUT-619
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-619
>             Project: Mahout
>          Issue Type: Improvement
>          Components: Collaborative Filtering
>    Affects Versions: 0.4
>            Reporter: Sean Owen
>            Assignee: Sean Owen
>            Priority: Minor
>              Labels: evaluation, ndcg, precision, recall, recommender
>             Fix For: 0.5
>
>
> Just tracking a simple improvement: add nDCG to precision and recall computations in GenericRecommenderIRStatsEvaluator

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