35 search results - page 3 / 7 » The Consecutive Ones Submatrix Problem for Sparse Matrices |
CPAIOR
2010
Springer
13 years 9 months ago
2010
Springer
Abstract. The multileaf collimator sequencing problem is an important component of the effective delivery of intensity modulated radiotherapy used in the treatment of cancer. The p...
CDC
2010
IEEE
13 years 1 months ago
2010
IEEE
In this paper, we derive concentration of measure inequalities for compressive Toeplitz matrices (having fewer rows than columns) with entries drawn from an independent and identic...
ICASSP
2010
IEEE
13 years 6 months ago
2010
IEEE
Polytope Faces Pursuit is a greedy algorithm that performs Basis Pursuit with similar order complexity to Orthogonal Matching Pursuit. The algorithm adds one basis vector at a tim...
COLOGNETWENTE
2008
13 years 7 months ago
2008
We consider combinatorial optimization problems arising in radiation therapy. Given a matrix I with non-negative integer entries, we seek for a decomposition of I as a weighted su...
SC
2003
ACM
13 years 11 months ago
2003
ACM
We investigate the use of the multistep successive preconditioning strategies (MSP) to construct a class of parallel multilevel sparse approximate inverse (SAI) preconditioners. W...