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From Apache Wiki <wikidi...@apache.org>
Subject [Lucene-hadoop Wiki] Trivial Update of "Hbase/Matrix" by udanax
Date Tue, 16 Oct 2007 01:53:38 GMT
Dear Wiki user,

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The following page has been changed by udanax:
http://wiki.apache.org/lucene-hadoop/Hbase/Matrix

------------------------------------------------------------------------------
  
   * Parallel Conjugate Gradients Assignment, a parallel implementation of the conjugate gradient
algorithm
   * ScaLAPACK, a library of high-performance linear algebra routines for distributed-memory
message-passing MIMD computers 
+  * Scheduling algorithms for parallel Gaussian elimination withcommunication costs, Amoura,
A.K.; Bampis, E.; Konig, J.-C.
+  * High performance numerical libraries in Java, Bj rn-Ove Heimsund
  
- == Sparse Matrices in Hbase ==
+ == Storing and manipulating numeric, sparse matrices on Hbase ==
  
  A Sparse matrix is created by following the creation command with the keyword "Matrix".
+ [[BR]]...
  
+ === Hbase Shell Extension ===
+ 
+ {{{
+ Hbase > lina;
+ 
+ Hbase LINA version 0.0.1
+ Type 'help;' for help.
+ 
+ Hbase.LINA > M = Matrix('m_table','cf_1'); //Set up the matrix M from mapped matrix in
hbase.
+ Hbase.LINA > R = M.SVDdecomposition();
+ Hbase.LINA > U = R.getU();
+ Hbase.LINA > Save U into Matrix('table_name','Othonormal_eigenvector_U');
+ ...
+ 
+ Hbase.LINA > exit;
+ 
+ Hbase > 
+ }}}
+ 

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