Results 71 to 80 of about 23,208,688 (165)

A Kernel Gabor-Based Weighted Region Covariance Matrix for Face Recognition

open access: yesSensors, 2012
This paper proposes a novel image region descriptor for face recognition, named kernel Gabor-based weighted region covariance matrix (KGWRCM). As different parts are different effectual in characterizing and recognizing faces, we construct a weighting ...
Yantao Li   +3 more
doaj   +1 more source

Algorithms for Matrix Transposition on Boolean N-Cube Configured Ensemble Architectures

open access: yes, 1988
In a multiprocessor with distributed storage the data structures have a significant impact on the communication complexity. In this paper we present a few algorithms for performing matrix transposition on a Boolean $n$-cube.
Johnsson, Lennart,, Ho, Ching-Tien
core   +1 more source

Applications of Lie methods to computations with polycyclic groups [PDF]

open access: yes, 2008
In this thesis we demonstrate the algorithmic usefulness of the so-called Mal'cev correspondence for computations with infinite polycyclic groups.
Assmann, Björn
core   +2 more sources

Fast Multi-view Clustering with Sparse Matrix and Improved Normalized Cut [PDF]

open access: yesJisuanji kexue yu tansuo
The multi-view clustering algorithm is a novel approach to explore the inherent clustering structure among data. However, most existing methods suffer from noise issues when constructing similarity graphs and may lose important information during the ...
YANG Mingrui, ZHOU Shibing, WANG Xi, SONG Wei
doaj   +1 more source

On the Relation between the AINV and the FAPINV Algorithms

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2009
The approximate inverse (AINV) and the factored approximate inverse (FAPINV) are two known algorithms in the field of preconditioning of linear systems of equations.
Davod Khojasteh Salkuyeh, Hadi Roohani
doaj   +1 more source

Development of a Real Time Sparse Non-Negative Matrix Factorization Module for Cochlear Implants by Using xPC Target

open access: yes, 2013
Cochlear implants (CIs) require efficient speech processing to maximize information transmission to the brain, especially in noise. A novel CI processing strategy was proposed in our previous studies, in which sparsity-constrained non-negative matrix ...
Mark Lutman   +7 more
core   +1 more source

Some Algorithms for the Conditional Mean Vector and Covariance Matrix [PDF]

open access: yes
We consider here the problem of computing the mean vector and covariance matrix for a conditional normal distribution, considering especially a sequence of problems where the conditioning variables are changing.
John F. Monahan
core  

Multiuser Detection Using Adaptive Multistage Matrix Wiener Filtering Schemes with Stage-Selection Criteria in DS-UWB

open access: yesEURASIP Journal on Advances in Signal Processing, 2008
Adaptive reduced-rank (RR) multistage matrix Wiener filtering (MMWF) techniques, based on the minimum mean-square error (MMSE) criterion, are proposed for direct-sequence (DS) ultra-wideband (UWB) communication systems.
Hsuan-Yu Lin, Chia-Chang Hu
doaj   +1 more source

An investigation of shortest paths algorithms [PDF]

open access: yes, 1987
In this work, we classify the shortest path problems, review all source algorithms and analyse the different implementations of single source algorithms using various list structures and labelling techniques.
Tabatabai, Bijan Oni, Tabatabai, B.O
core  

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