5 search results - page 1 / 1 » On the Number of Possible Row and Column Sums of 0, 1-Matric... |
COMBINATORICS
2006
13 years 4 months ago
2006
For n a positive integer, we show that the number of of 2n-tuples of integers that are the row and column sums of some n
COCOON
2009
Springer
13 years 11 months ago
2009
Springer
The problems of uniformly sampling and approximately counting contingency tables have been widely studied, but efficient solutions are only known in special cases. One appealing ap...
SPAA
2005
ACM
13 years 10 months ago
2005
ACM
In 1995, Gremban, Miller, and Zagha introduced supporttree preconditioners and a parallel algorithm called supporttree conjugate gradient (STCG) for solving linear systems of the ...
ICFCA
2009
Springer
13 years 11 months ago
2009
Springer
Matrix decomposition methods provide representations of an object-variable data matrix by a product of two different matrices, one describing relationship between objects and hidd...
CORR
2008
Springer
13 years 4 months ago
2008
Springer
Let A be an n by N real valued random matrix, and HN denote the N-dimensional hypercube. For numerous random matrix ensembles, the expected number of k-dimensional faces of the ran...