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Posted to dev@mahout.apache.org by "julien nioche (JIRA)" <ji...@apache.org> on 2008/04/21 14:35:21 UTC

[jira] Closed: (MAHOUT-44) Override zSum and dot for SparseVector

     [ https://issues.apache.org/jira/browse/MAHOUT-44?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

julien nioche closed MAHOUT-44.
-------------------------------


My pleasure. Thank you for committing it 

> Override zSum and dot for SparseVector
> --------------------------------------
>
>                 Key: MAHOUT-44
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-44
>             Project: Mahout
>          Issue Type: Improvement
>          Components: Matrix
>    Affects Versions: 0.1
>            Reporter: julien nioche
>            Assignee: Grant Ingersoll
>            Priority: Minor
>             Fix For: 0.1
>
>         Attachments: SparseVector.diff
>
>
> revision 649163
> The patch attached overrides the zSum() and dot() methods in SparseVector. This is more efficient than relying on the methods from AbstractVector which iterate on all the indices of the Vectors. 

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