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https://issues.apache.org/jira/browse/SPARK-26981?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-26981:
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Assignee: Apache Spark
> 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
> Assignee: Apache Spark
> Priority: Minor
>
> 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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