Sciweavers

236 search results - page 35 / 48
» Fast Sparse Matrix Multiplication
Sort
View
ICASSP
2011
IEEE
12 years 11 months ago
A fast transform for acoustic imaging with separable arrays
Acoustic imaging is a computationally intensive and ill-conditioned inverse problem, which involves estimating high resolution source distributions with large microphone arrays. I...
Flavio P. Ribeiro, Vitor H. Nascimento
IJHPCA
2010
84views more  IJHPCA 2010»
13 years 5 months ago
Operation Stacking for Ensemble Computations With Variable Convergence
Sparse matrix operations achieve only small fractions of peak CPU speeds because of the use of specialized, indexbased matrix representations, which degrade cache utilization by i...
Mehmet Belgin, Godmar Back, Calvin J. Ribbens
CVPR
2011
IEEE
13 years 4 months ago
Camera Calibration with Lens Distortion from Low-rank Textures
We present a simple, accurate, and flexible method to calibrate intrinsic parameters of a camera together with (possibly significant) lens distortion. This new method can work u...
Zhengdong Zhang, Yasuyuki Matsushita, Yi Ma
SIAMSC
2011
177views more  SIAMSC 2011»
13 years 2 months ago
Computing f(A)b via Least Squares Polynomial Approximations
Given a certain function f, various methods have been proposed in the past for addressing the important problem of computing the matrix-vector product f(A)b without explicitly comp...
Jie Chen, Mihai Anitescu, Yousef Saad
EC
1998
178views ECommerce» more  EC 1998»
13 years 7 months ago
The Simple Genetic Algorithm and the Walsh Transform: Part I, Theory
This paper is the first part of a two part series. It proves a number of direct relationships between the Fourier transform and the simple genetic algorithm. (For a binary repres...
Michael D. Vose, Alden H. Wright