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https://issues.apache.org/jira/browse/MAHOUT-1574?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ted Dunning reopened MAHOUT-1574:
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Assignee: Ted Dunning
Oops. Regressed with new code in terms of matrix size checking.
> SparseRowMatrix needs performance improvement for times()
> ---------------------------------------------------------
>
> Key: MAHOUT-1574
> URL: https://issues.apache.org/jira/browse/MAHOUT-1574
> Project: Mahout
> Issue Type: Bug
> Reporter: Ted Dunning
> Assignee: Ted Dunning
>
> According to ssc,
> > * SparseRowMatrix with sequential vectors times SparseRowMatrix with
> > sequential vectors is totally broken, it uses three nested loops and uses
> > get(row, col) on the matrices, which internally uses binary search...
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