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From Apache Wiki <wikidi...@apache.org>
Subject [Hama Wiki] Trivial Update of "Architecture" by udanax
Date Mon, 30 Mar 2009 05:06:27 GMT
Dear Wiki user,

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The following page has been changed by udanax:

  The matrix or network structure that frequently changes should have flexible storage structure
for easy update and indicies that point to the appropriate entry. Also, we need a model that
uses the concept of column-iterative methods.
- Hama use a [http://hadoop.apache.org/hbase/ Hbase] to store the matrices.
+ Hama use a [http://hadoop.apache.org/hbase/ Hbase] to store the matrices. HBase is an open-source,
distributed, column-oriented store modeled.
  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.

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