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» Algebraic Methods for Optimization Problems
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NIPS
2008
15 years 3 months ago
Deflation Methods for Sparse PCA
In analogy to the PCA setting, the sparse PCA problem is often solved by iteratively alternating between two subtasks: cardinality-constrained rank-one variance maximization and m...
Lester Mackey
ISMB
1994
15 years 3 months ago
An Efficient Method for Multiple Sequence Alignment
Multiple sequence alignment has been a useful methodin the study of molecular evolution and sequence-structure relationships. This paper presents a newmethodfor multiple sequence ...
Jin Kim, Sakti Pramanik
113
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WSC
2008
15 years 4 months ago
Discrete stochastic optimization using linear interpolation
We consider discrete stochastic optimization problems where the objective function can only be estimated by a simulation oracle; the oracle is defined only at the discrete points....
Honggang Wang, Bruce W. Schmeiser
115
Voted
SIAMSC
2011
142views more  SIAMSC 2011»
14 years 8 months ago
Efficiency Based Adaptive Local Refinement for First-Order System Least-Squares Formulations
Abstract. In this paper, we propose new adaptive local refinement (ALR) strategies for firstorder system least-squares (FOSLS) finite element in conjunction with algebraic multi...
J. H. Adler, Thomas A. Manteuffel, Stephen F. McCo...
ISPDC
2007
IEEE
15 years 8 months ago
On Grid-based Matrix Partitioning for Heterogeneous Processors
The problem of optimal matrix partitioning for parallel linear algebra on p heterogeneous processors is typically reduced to the geometrical problem of partitioning a unit square ...
Alexey L. Lastovetsky