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From: Apache Wiki <wikidiffs@apache.org>
To: hama-commits@incubator.apache.org
Date: Mon, 30 Mar 2009 00:47:58 -0000
Message-ID: <20090330004758.26651.72098@aurora.apache.org>
Subject: [Hama Wiki] Trivial Update of "Architecture" by udanax

Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Hama Wiki" for change notification.

The following page has been changed by udanax:
http://wiki.apache.org/hama/Architecture

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  [http://wiki.apache.org/hama-data/attachments/Architecture/attachments/block.png]
  
- = Store Dense/Sparse Matrices =
+ = Store Matrices & Graphs =
  
  To store the matrices, Hama use a [http://hadoop.apache.org/hbase/ Hbase] -- Matrices are basically tables. They are ways of storing numbers and other things. Typical matrix has rows and columns  which is often called a 2-way matrix because it has two dimensions. For example, you might have respondents-by-attitudes. Of course, you might collect the same data on the same people at 5 points in time. In that case, you either have 5 different 2-way matrices, or you could think of it as a 3-way matrix, that is respondent-by-attitude-by-time.
  
  -- ''Just a thought, considering the depleted activity in HBase should we not explore ways to avoid HBase ? --Prasen ''
   -- ''Hbase seems activity at this time, However Yes. We should think about it. --Edward ''
+ 
+ == Why Hbase? ==
  
  == Represent a graph using adjacency matrix ==
   * https://issues.apache.org/jira/browse/HAMA-162