You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@spark.apache.org by "zhengruifeng (Jira)" <ji...@apache.org> on 2020/09/23 10:28:00 UTC

[jira] [Created] (SPARK-32974) FeatureHasher transform optimization

zhengruifeng created SPARK-32974:
------------------------------------

             Summary: FeatureHasher transform optimization
                 Key: SPARK-32974
                 URL: https://issues.apache.org/jira/browse/SPARK-32974
             Project: Spark
          Issue Type: Improvement
          Components: ML
    Affects Versions: 3.1.0
            Reporter: zhengruifeng


for a numerical column, its output index is a hash of its col_name, we can pre-compute it at first, instead of computing it on each row.



--
This message was sent by Atlassian Jira
(v8.3.4#803005)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org