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From "Marta Raczynska (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAHOUT-2030) Add DCG and nDCG metrics (rank) evaluator
Date Tue, 27 Feb 2018 20:17:00 GMT

     [ https://issues.apache.org/jira/browse/MAHOUT-2030?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Marta Raczynska updated MAHOUT-2030:
------------------------------------
    Description: 
Add common ranking metrics evaluator:
 * Discounted cumulative gain (DCG)
 * Normalized discounted cumulative gain (nDCG)

This implementation attempts to create a new class: *org.apache.mahout.cf.taste.impl.eval.DCGRecommenderEvaluator*
which implements *org.apache.mahout.cf.taste.eval.RecommenderEvaluator*. 

  was:
Add common ranking metrics evaluator:
 * Discounted cumulative gain (DCG)
 * Normalized discounted cumulative gain (nDCG)

This implementation attempts to create a new class: *org.apache.mahout.cf.taste.impl.eval.DCGRecommenderEvaluator*
which implements ***org.apache.mahout.cf.taste.eval.RecommenderEvaluator*. 


> Add DCG and nDCG metrics (rank) evaluator
> -----------------------------------------
>
>                 Key: MAHOUT-2030
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-2030
>             Project: Mahout
>          Issue Type: New Feature
>          Components: Collaborative Filtering
>            Reporter: Marta Raczynska
>            Priority: Minor
>
> Add common ranking metrics evaluator:
>  * Discounted cumulative gain (DCG)
>  * Normalized discounted cumulative gain (nDCG)
> This implementation attempts to create a new class: *org.apache.mahout.cf.taste.impl.eval.DCGRecommenderEvaluator*
which implements *org.apache.mahout.cf.taste.eval.RecommenderEvaluator*. 



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