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From "Andrew Palumbo (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAHOUT-1578) Optimizations in matrix serialization
Date Fri, 06 Mar 2015 01:24:39 GMT

    [ https://issues.apache.org/jira/browse/MAHOUT-1578?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14349748#comment-14349748
] 

Andrew Palumbo commented on MAHOUT-1578:
----------------------------------------

this can be closed right?

> Optimizations in matrix serialization
> -------------------------------------
>
>                 Key: MAHOUT-1578
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1578
>             Project: Mahout
>          Issue Type: Improvement
>          Components: Math
>            Reporter: Sebastian Schelter
>              Labels: legacy
>             Fix For: 1.0
>
>
> MatrixWritable contains inefficient code in a few places:
>  
>  * type and size are stored with every vector, although they are the same for every vector
>  * in some places vectors are added to the matrix via assign() in places where we could
directly use the instance
>  



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