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SIAMMAX
2010
104views more  SIAMMAX 2010»
13 years 2 months ago
Rigorous Perturbation Bounds of Some Matrix Factorizations
This article presents rigorous normwise perturbation bounds for the Cholesky, LU and QR factorizations with normwise or componentwise perturbations in the given matrix. The conside...
Xiao-Wen Chang, Damien Stehlé
AAECC
2007
Springer
87views Algorithms» more  AAECC 2007»
13 years 7 months ago
Towards an accurate performance modeling of parallel sparse factorization
We present a simulation-based performance model to analyze a parallel sparse LU factorization algorithm on modern cached-based, high-end parallel architectures. We consider supern...
Laura Grigori, Xiaoye S. Li
PPOPP
2003
ACM
14 years 27 days ago
Factorization with morton-ordered quadtree matrices for memory re-use and parallelism
Quadtree matrices using Morton-order storage provide natural blocking on every level of a memory hierarchy. Writing the natural recursive algorithms to take advantage of this bloc...
Jeremy D. Frens, David S. Wise
SIPS
2007
IEEE
14 years 1 months ago
Embedded Reconfigurable Solution for OFDM Detection Over Fast Fading Radio Channels
OFDM demodulation under fast fading radio channels is very computationally demanding, making the implementation of Software Defined Radio (SDR) solutions problematic. A suboptima...
Mihai Sima, Michael McGuire
AUTOMATICA
1999
44views more  AUTOMATICA 1999»
13 years 7 months ago
Square-root information filtering and fixed-interval smoothing with singularities
The square-root information filter and smoother algorithms have been generalized to handle singular state transition matrices and perfect measurements. This has been done to allow...
Mark L. Psiaki