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» Spectra of large block matrices
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ICASSP
2009
IEEE
13 years 3 months ago
Rational canonical form of polyphase matrices with applications to designing paraunitary filter banks
In this paper we consider the rational canonical form of arbitrary polyphase matrices and use it to derive a simple implementation of paraunitary filter banks (PUFBs) based on a c...
Peter G. Vouras, Trac Tran, Michael Ching
IJHPCA
2007
88views more  IJHPCA 2007»
13 years 5 months ago
Performance Optimization and Modeling of Blocked Sparse Kernels
We present a method for automatically selecting optimal implementations of sparse matrixvector operations. Our software ‘AcCELS’ (Accelerated Compress-storage Elements for Lin...
Alfredo Buttari, Victor Eijkhout, Julien Langou, S...
ISSAC
2007
Springer
107views Mathematics» more  ISSAC 2007»
13 years 11 months ago
A disk-based parallel implementation for direct condensation of large permutation modules
Through the use of a new disk-based method for enumerating very large orbits, condensation for orbits with tens of billions of elements can be performed. The algorithm is novel in...
Eric Robinson, Jürgen Müller 0004, Gene ...
PARA
2004
Springer
13 years 10 months ago
Optimization of a Statically Partitioned Hypermatrix Sparse Cholesky Factorization
The sparse Cholesky factorization of some large matrices can require a two dimensional partitioning of the matrix. The sparse hypermatrix storage scheme produces a recursive 2D par...
José R. Herrero, Juan J. Navarro
PARA
1995
Springer
13 years 9 months ago
Decomposing Linear Programs for Parallel Solution
Coarse grain parallelism inherent in the solution of Linear Programming (LP) problems with block angular constraint matrices has been exploited in recent research works. However, t...
Ali Pinar, Ümit V. Çatalyürek, Ce...