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From "Apache Spark (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-7143) Add BM25 Estimator
Date Sat, 25 Apr 2015 16:19:38 GMT

    [ https://issues.apache.org/jira/browse/SPARK-7143?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14512578#comment-14512578
] 

Apache Spark commented on SPARK-7143:
-------------------------------------

User 'viirya' has created a pull request for this issue:
https://github.com/apache/spark/pull/5701

> Add BM25 Estimator
> ------------------
>
>                 Key: SPARK-7143
>                 URL: https://issues.apache.org/jira/browse/SPARK-7143
>             Project: Spark
>          Issue Type: New Feature
>          Components: ML
>            Reporter: Liang-Chi Hsieh
>
> [BM25|http://en.wikipedia.org/wiki/Okapi_BM25] is a retrieval function used to rank documents.
It is commonly used in IR tasks and can be parallel. This issue is proposed to add it into
Spark ML.



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