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Posted to issues@mahout.apache.org by "Marta Raczynska (JIRA)" <ji...@apache.org> on 2018/02/27 20:17:00 UTC

[jira] [Created] (MAHOUT-2030) Add DCG and nDCG metrics (rank) evaluator

Marta Raczynska created MAHOUT-2030:
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             Summary: 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


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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