hama-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Apache Wiki <wikidi...@apache.org>
Subject [Hama Wiki] Trivial Update of "Architecture" by udanax
Date Mon, 30 Mar 2009 03:24:54 GMT
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

------------------------------------------------------------------------------
  
  = Store Matrices & Graphs =
  
+ 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.
+ 
- 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.
+ 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

Mime
View raw message