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Posted to issues@spark.apache.org by "Masahiro Kazama (JIRA)" <ji...@apache.org> on 2019/02/24 05:46:00 UTC

[jira] [Created] (SPARK-26981) Add 'Recall_at_k' metric to RankingMetrics

Masahiro Kazama created SPARK-26981:
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             Summary: Add 'Recall_at_k' metric to RankingMetrics
                 Key: SPARK-26981
                 URL: https://issues.apache.org/jira/browse/SPARK-26981
             Project: Spark
          Issue Type: New Feature
          Components: MLlib
    Affects Versions: 2.4.0
            Reporter: Masahiro Kazama


Add 'Recall_at_k' metric to RankingMetrics.

Recall_at_k is often used for evaluating ranking models, especially for recommendation system.

 



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