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Posted to issues@spark.apache.org by "Xiangrui Meng (JIRA)" <ji...@apache.org> on 2015/04/15 23:13:59 UTC

[jira] [Created] (SPARK-6948) VectorAssembler should choose dense/sparse for output based on number of zeros

Xiangrui Meng created SPARK-6948:
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             Summary: VectorAssembler should choose dense/sparse for output based on number of zeros
                 Key: SPARK-6948
                 URL: https://issues.apache.org/jira/browse/SPARK-6948
             Project: Spark
          Issue Type: Improvement
          Components: MLlib
    Affects Versions: 1.4.0
            Reporter: Xiangrui Meng


Now VectorAssembler only outputs sparse vectors. We should choose dense/sparse format automatically, whichever uses less memory.



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