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From "Thomas Jungblut (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HAMA-524) [GSoC 2012] Sparse Matrix-Vector multiplication (SpMV) on Hama
Date Mon, 14 May 2012 13:47:52 GMT

    [ https://issues.apache.org/jira/browse/HAMA-524?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13274595#comment-13274595
] 

Thomas Jungblut commented on HAMA-524:
--------------------------------------

bq. Please try to implement your own classes.

Would be cool to have some neat math classes for vectors and matrices though.

You can have a look at https://github.com/thomasjungblut/tjungblut-math
It is inspired by the class design of mahout-math. 

Here is the Writable implementation of the vectors: https://github.com/thomasjungblut/thomasjungblut-common/blob/master/src/de/jungblut/clustering/model/VectorWritable.java

Just in case you need them, they are Apache2 considered, so you can just copy and paste to
our project. But it would be cool if you add testcases.
                
> [GSoC 2012] Sparse Matrix-Vector multiplication (SpMV) on Hama
> --------------------------------------------------------------
>
>                 Key: HAMA-524
>                 URL: https://issues.apache.org/jira/browse/HAMA-524
>             Project: Hama
>          Issue Type: New Feature
>          Components: bsp core, examples, math
>            Reporter: Edward J. Yoon
>            Assignee: Mikalai Parafeniuk
>              Labels: gsoc, gsoc2012, newbie
>
> Implement Efficient and Fast SpMV algorithm which can be widely used in scientiļ¬c computing,
financial modeling, information retrieval, and others, using Hama Bulk Synchronous Parallel
framework.

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