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Posted to issues@spark.apache.org by "Manoj Kumar (JIRA)" <ji...@apache.org> on 2015/08/01 17:16:04 UTC

[jira] [Created] (SPARK-9525) Optimize SparseVector initializations in linalg

Manoj Kumar created SPARK-9525:
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             Summary: Optimize SparseVector initializations in linalg
                 Key: SPARK-9525
                 URL: https://issues.apache.org/jira/browse/SPARK-9525
             Project: Spark
          Issue Type: Improvement
          Components: MLlib, PySpark
            Reporter: Manoj Kumar
            Priority: Minor


1. Remove sorting of indices and assume that the user gives a sorted tuple of indices, values etc

2. Avoid iterating twice to get the indices and values if the argument provided is a dict.

3. Add checks such that the length of the indices should be less than the size provided.



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