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Posted to dev@mahout.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2011/03/07 09:35:59 UTC

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

Add normalized discounted cumulative gain to recommender evaluator
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                 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
             Fix For: 0.5


Just tracking a simple improvement: add nDCG to precision and recall computations in GenericRecommenderIRStatsEvaluator

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

Posted by "Hudson (JIRA)" <ji...@apache.org>.
    [ 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:
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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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For more information on JIRA, see: http://www.atlassian.com/software/jira

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

Posted by "Sean Owen (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/MAHOUT-619?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Owen resolved MAHOUT-619.
------------------------------

    Resolution: Fixed

> 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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For more information on JIRA, see: http://www.atlassian.com/software/jira