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https://issues.apache.org/jira/browse/SPARK-7140?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-7140:
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Assignee: Xiangrui Meng (was: Apache Spark)
> Do not scan all values in Vector.hashCode
> -----------------------------------------
>
> Key: SPARK-7140
> URL: https://issues.apache.org/jira/browse/SPARK-7140
> Project: Spark
> Issue Type: Improvement
> Components: MLlib
> Reporter: Xiangrui Meng
> Assignee: Xiangrui Meng
>
> It makes hashCode really expensive. The Pyrolite version we are using in
> Spark calls it in serialization. Scanning the first few nonzeros should be
> sufficient.
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