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Posted to issues@spark.apache.org by "Liang-Chi Hsieh (JIRA)" <ji...@apache.org> on 2015/04/25 18:15:38 UTC

[jira] [Created] (SPARK-7143) Add BM25 Estimator

Liang-Chi Hsieh created SPARK-7143:
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             Summary: 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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