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Posted to issues@spark.apache.org by "Joseph K. Bradley (JIRA)" <ji...@apache.org> on 2016/11/11 02:40:58 UTC

[jira] [Created] (SPARK-18409) LSH approxNearestNeighbors should use approxQuantile instead of sort

Joseph K. Bradley created SPARK-18409:
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             Summary: LSH approxNearestNeighbors should use approxQuantile instead of sort
                 Key: SPARK-18409
                 URL: https://issues.apache.org/jira/browse/SPARK-18409
             Project: Spark
          Issue Type: Improvement
          Components: ML
            Reporter: Joseph K. Bradley


LSHModel.approxNearestNeighbors sorts the full dataset on the hashDistance in order to find a threshold.  It should use approxQuantile instead.



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