Mailing-List: contact hama-dev-help@incubator.apache.org; run by ezmlm
Precedence: bulk
Reply-To: hama-dev@incubator.apache.org
Message-ID: <776741625.1217990924365.JavaMail.jira@brutus>
Date: Tue, 5 Aug 2008 19:48:44 -0700 (PDT)
From: "Edward J. Yoon (JIRA)" <jira@apache.org>
To: hama-dev@incubator.apache.org
Subject: [jira] Updated: (HAMA-11) Adding and Subtracting Matrices
In-Reply-To: <299289571.1217325151834.JavaMail.jira@brutus>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit


     [ https://issues.apache.org/jira/browse/HAMA-11?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Edward J. Yoon updated HAMA-11:
-------------------------------

    Component/s:     (was: algorithm)
                 implementation

> Adding and Subtracting Matrices
> -------------------------------
>
>                 Key: HAMA-11
>                 URL: https://issues.apache.org/jira/browse/HAMA-11
>             Project: Hama
>          Issue Type: Improvement
>          Components: implementation
>            Reporter: Edward J. Yoon
>            Assignee: Edward J. Yoon
>             Fix For: 0.1.0
>
>
> Matrix addition/subtraction is fairly simple, and is done entry-wise. For instance:
> If Matrix A = {[a, b], [c, d]}, Matrix B = {[e, f], [g, h]},
> A + B
> Add the pairs of entries, and simplify for the final answer:
> {[a, b], [c, d]} + {[e, f], [g, h]} = {[a + e, b + f], [c + g, d + h]}
> So, we can solve this using the mapreduce by 1D row-wise partitioning.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.