Results 1 to 10 of about 3,814,069 (243)

A Joint State-Parameter Identification Algorithm of a Structure with Non-Diagonal Mass Matrix Based on UKF with Unknown Mass

open access: yesBuildings, 2022
Inaccurate mass estimates have been recognized as an important source of uncertainty in structural identification, especially for large-scale structures with old ages.
Shiyu Wang, Ying Lei
doaj   +3 more sources

On the structure of the fundamental subspaces of acyclic matrices with 0 in the diagonal

open access: yesThe American Journal of Combinatorics, 2023
A matrix is called acyclic if replacing the diagonal entries with \(0\), and the nonzero diagonal entries with \(1\), yields the adjacency matrix of a forest.
Daniel Jaume, Adrian Pastine
doaj   +1 more source

Diagonal Loading Beamforming Based on Aquila Optimizer

open access: yesIEEE Access, 2023
Traditional beamforming algorithms are only applicable to ideal environments. When the array antenna receives data under circumstances of small snapshots or large signal-to-noise ratio(SNR), noise eigenvalues of classic sample matrix inversion(SMI) and ...
Chao Liu, Jiaqi Zhen
doaj   +1 more source

On Algorithms For Permuting Large Entries to the Diagonal of a Sparse Matrix [PDF]

open access: yesSIAM Journal on Matrix Analysis and Applications, 2001
The authors show how bipartite matching algorithms can be used to permute the rows and columns of a matrix so that the diagonal of the permuted matrix is large. The proposed algorithm computes a matching that corresponds to a permutation of a sparse matrix such that the product (or sum) of the diagonal entries is maximized.
Iain S. Duff, Jacko Koster
openaire   +3 more sources

The Sinkhorn-Knopp algorithm : convergence and applications [PDF]

open access: yes, 2008
As long as a square nonnegative matrix A contains sufficient nonzero elements, then the Sinkhorn-Knopp algorithm can be used to balance the matrix, that is, to find a diagonal scaling of A that is doubly stochastic.
Knight, P.A.
core   +4 more sources

Diagonal Scaling of Ill-Conditioned Matrixes by Genetic Algorithm [PDF]

open access: yesJournal of Applied Mathematics, Statistics and Informatics, 2012
Diagonal Scaling of Ill-Conditioned Matrixes by Genetic AlgorithmThe purpose of this article is to use genetic algorithm for finding two invertible diagonal matricesD1andD2such that the scaled matrixD1AD2approaches to minimum condition number.
Vajargah, Behrouz Fathi, Moradi, Mojtaba
openaire   +1 more source

NISQ algorithm for the matrix elements of a generic observable

open access: yesSciPost Physics, 2023
The calculation of off-diagonal matrix elements has various applications in fields such as nuclear physics and quantum chemistry. In this paper, we present a noisy intermediate scale quantum algorithm for estimating the diagonal and off-diagonal matrix ...
Rebecca Erbanni, Kishor Bharti, Leong-Chuan Kwek, Dario Poletti
doaj   +1 more source

Latent Multi-View Semi-Nonnegative Matrix Factorization with Block Diagonal Constraint

open access: yesAxioms, 2022
Multi-view clustering algorithms based on matrix factorization have gained enormous development in recent years. Although these algorithms have gained impressive results, they typically neglect the spatial structures that the latent data representation ...
Lin Yuan   +3 more
doaj   +1 more source

Deep Subspace Clustering with Block Diagonal Constraint

open access: yesApplied Sciences, 2020
The deep subspace clustering method, which adopts deep neural networks to learn a representation matrix for subspace clustering, has shown good performance.
Jing Liu, Yanfeng Sun, Yongli Hu
doaj   +1 more source

Complete/incomplete multi‐view subspace clustering via soft block‐diagonal‐induced regulariser

open access: yesIET Computer Vision, 2021
This study proposes a novel multi‐view soft block diagonal representation framework for clustering complete and incomplete multi‐view data. First, given that the multi‐view self‐representation model offers better performance in exploring the intrinsic ...
Yongli Hu   +5 more
doaj   +1 more source

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