incubator-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] Update of "GraphAndMatrices" by udanax
Date Thu, 06 Nov 2008 13:44:40 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/GraphAndMatrices

------------------------------------------------------------------------------
  == Matrices ==
  We can record who is connected to whom on a given social relation via an adjacency matrix.
The adjacency matrix is a square, 1-mode matrix like this:
  
- ||   || A || B || C || D || E || F || G ||
+ ||   || A || B || C || D || E || F || G ||<|8>[http://wiki.apache.org/hama-data/attachments/BigTableForGmail/attachments/graph.jpg]||
  || A ||   || 1 || 0 || 1 || 0 || 0 || 1 ||
- || B || 1 ||   || 1 || 0 || 1 || 0 || 0 ||  
+ || B || 1 ||   || 1 || 0 || 1 || 0 || 0 ||
  || C || 1 || 1 ||   || 1 || 1 || 0 || 0 ||
  || D || 1 || 1 || 1 ||   || 0 || 0 || 0 ||
  || E || 0 || 0 || 0 || 1 ||   || 1 || 0 ||
  || F || 0 || 0 || 0 || 0 || 1 ||   || 0 ||
  || G || 1 || 1 || 0 || 0 || 0 || 0 ||   ||
  
- [http://wiki.apache.org/hama-data/attachments/BigTableForGmail/attachments/graph.jpg]
+ 
  
  If the matrix as a whole is called X, then the contents of any given cell are denoted x,,ij,,.
For example, in the matrix above, x,,ij,, = 1, because A likes B. Note that this matrix is
not quite symmetric (x,,ij,, not always equal to x,,ji,,).
  

Mime
View raw message