Suchergebnisse - problems: computations on matrices

Shrinking Small Sample Problems in Multilevel Structural Equation Modeling via Regularization of the Sample Covariance Matrix

Autoren: Julia-Kim Walther Martin Hecht Steffen Zitzmann

Quelle: Structural Equation Modeling: A Multidisciplinary Journal. 2025 32(1):46-65.

Peer Reviewed: Y

Page Count: 20

Descriptors: Sample Size, Hierarchical Linear Modeling, Structural Equation Models, Matrices, Computation, Correlation, Simulation, Evaluation Criteria, Accuracy

Parallel Jacobian Computation Based on Distance-2 Algorithm and Its Application in Coupling Problems

Autoren: LIU Lixun, ZHANG Han, PENG Xinru, DOU Qinrong, WU Yingjie, GUO Jiong, LI Fu

Quelle: Yuanzineng kexue jishu, Vol 58, Iss 6, Pp 1201-1209 (2024)

Schlagwörter: newton-krylov method, sparse jacobian matrix, graph coloring, finite difference, distributed-memory parallel computing, Nuclear engineering. Atomic power, TK9001-9401, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798

Dateibeschreibung: electronic resource

Relation: https://doaj.org/toc/1000-6931

Zugangs-URL: https://doaj.org/article/bbab0b694de04d98acfa652aabd45d6a

Solving the nearest rotation matrix problem in three and four dimensions with applications in robotics

Autoren: Sarabandi, Soheil

Weitere Verfasser: University/Department: Universitat Politècnica de Catalunya. Departament d'Enginyeria Mecànica

Thesis Advisors: Thomas, Federico

Quelle: TDX (Tesis Doctorals en Xarxa)

Schlagwörter: Àrees temàtiques de la UPC::Enginyeria mecànica

Dateibeschreibung: application/pdf

Zugangs-URL: http://hdl.handle.net/10803/674370
https://dx.doi.org/10.5821/dissertation-2117-368007

Generalized Inverse of Quadri-Partitioned Neutrosophic Fuzzy Matrices and its Application to Decision-Making Problems

Autoren: R. Jaya S. Vimala

Quelle: Neutrosophic Sets and Systems, Vol 87, Pp 580-611 (2025)

Schlagwörter: quadri-partitioned neutrosophic fuzzy sets, quadri-partitioned neutrosophic fuzzy matrices, generalized inverse (g-inverse), moore-penrose inverse, minus ordering, Mathematics, QA1-939, Electronic computers. Computer science, QA75.5-76.95

Dateibeschreibung: electronic resource

Relation: https://fs.unm.edu/NSS/36QuadriPartitioned.pdf; https://doaj.org/toc/2331-6055; https://doaj.org/toc/2331-608X

Zugangs-URL: https://doaj.org/article/8b99d76d14034a1a8767c1dfd5b84ea9

Efficient resonance computations for Helmholtz problems based on a Dirichlet-to-Neumann map

Autoren: Araujo-Cabarcas, J. C. Engström, C. Jarlebring, Elias

Quelle: Journal of Computational and Applied Mathematics. 330:177-192

Schlagwörter: Arnoldi's method, Dirichlet-to-Neumann map, Helmholtz problem, Matrix functions, Nonlinear eigenvalue problems, Scattering resonances, Finite element method, Matrix algebra, Numerical methods, Poles, Refractive index, Resonance, Switching systems, Arnoldi's methods, Helmholtz problems, Nonlinear eigenvalue problem, Scattering resonance, Eigenvalues and eigenfunctions

Dateibeschreibung: print

Zugangs-URL: https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-216793

A unified framework for sparse non-negative least squares using multiplicative updates and the non-negative matrix factorization problem

Autoren: Fedorov, Igor Nalci, Alican Giri, Ritwik et al.

Schlagwörter: Information and Computing Sciences, Communications Engineering, Engineering, Computer Vision and Multimedia Computation, Sparsity, Non-negativity, Dictionary learning, Technology, Networking & Telecommunications, Information and computing sciences

Dateibeschreibung: application/pdf

Zugangs-URL: https://escholarship.org/uc/item/66c2c4nj
https://escholarship.org/content/qt66c2c4nj/qt66c2c4nj.pdf

Matrix-Sequences of Geometric Means in the Case of Hidden (Asymptotic) Structures

Autoren: Ahmad, Danyal Khan, Muhammad Faisal Serra-Capizzano, Stefano

Quelle: Mathematics. 13(3)

Schlagwörter: geometric mean, matrix-sequences, matrix theory, Karcher mean, matrix computation, matrix analysis, numerical linear algebra, spectral theory, algebraic structures, matrix computations, matrix means, 65N

Dateibeschreibung: electronic

Zugangs-URL: https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-551449
https://doi.org/10.3390/math13030393

Eigenvalue computations for regular matrix Sturm-Liouville problems

Autoren: H. I. Dwyer A. Zettl

Quelle: Electronic Journal of Differential Equations, Vol 1995, Iss 05, Pp 1-13 (1995)

Schlagwörter: Sturm-Liouville problem, matrix coefficients, eigenvalues, numerical computation of eigenvalues., Mathematics, QA1-939

Dateibeschreibung: electronic resource

Relation: http://ejde.math.txstate.edu/Volumes/1995/05/abstr.html; https://doaj.org/toc/1072-6691

Zugangs-URL: https://doaj.org/article/1cf0e2d509c446a8aade9a7e59071802

Numerical computation of nonlinear boundary value problems in heat transfer and chemical engineering: a robust Lucas–Fibonacci series approach

Autoren: Mahmoud Abd El-Hady Mohamed El-Gamel Mohammad Izadi et al.

Quelle: Journal of Taibah University for Science, Vol 19, Iss 1 (2025)

Schlagwörter: Bratu's problem, Troesch's problem, nonlocal elliptic, collocation method, Lucas series, Fibonacci polynomials, Science (General), Q1-390

Dateibeschreibung: electronic resource

Relation: https://doaj.org/toc/1658-3655

Zugangs-URL: https://doaj.org/article/60a1dd3f6701479da23989669be0d71a

Efficient computation using spatial-photonic Ising machines with low-rank and circulant matrix constraints

Autoren: Richard Zhipeng Wang James S. Cummins Marvin Syed et al.

Quelle: Communications Physics, Vol 8, Iss 1, Pp 1-15 (2025)

Schlagwörter: Astrophysics, QB460-466, Physics, QC1-999

Dateibeschreibung: electronic resource

Relation: https://doaj.org/toc/2399-3650

Zugangs-URL: https://doaj.org/article/9b43ce69ddc947c0a0b64e924e1fe2b3

An Efficient GPU Implementation of Bulk Computation of the Eigenvalue Problem for Many Small Real Non-symmetric Matrices

Autoren: Hiroki Tokura Koji Nakano Masami Saeki et al.

Quelle: International Journal of Networking and Computing. 2017, 7(2):227

Completion problems of partial $ N_0^1 $-matrices under directed 2-trees

Autoren: Gu-Fang Mou

Quelle: AIMS Mathematics, Vol 10, Iss 4, Pp 9055-9072 (2025)

Schlagwörter: partial matrix, matrix completion, $ n_0^1 $-matrix, directed 2-tree, Mathematics, QA1-939

Dateibeschreibung: electronic resource

Relation: https://doaj.org/toc/2473-6988

Zugangs-URL: https://doaj.org/article/a9dc465ef0d1470dbe3b201fc0c31b45

Joint Learning of Full-Structure Noise in Hierarchical Bayesian Regression Models

Autoren: Hashemi, Ali Cai, Chang Gao, Yijing et al.

Quelle: IEEE Transactions on Medical Imaging. 43(2)

Schlagwörter: Engineering, Information and Computing Sciences, Communications Engineering, Computer Vision and Multimedia Computation, Machine Learning, Magnetoencephalography, Bayes Theorem, Computer Simulation, Electroencephalography, Algorithms, Bayes methods, Brain modeling, Covariance matrices, Inverse problems, Imaging, Manifolds, Gaussian noise, EEG/MEG brain source imaging, hierarchical Bayesian learning, majorization minimization, sparse Bayesian learning, type-II maximum-likelihood, Nuclear Medicine & Medical Imaging, Information and computing sciences

Dateibeschreibung: application/pdf

Zugangs-URL: https://escholarship.org/uc/item/1pj6h0jr
https://escholarship.org/content/qt1pj6h0jr/qt1pj6h0jr.pdf

The Origin-Destination Matrix Estimation Problem: Analysis and Computations

Autoren: Peterson, Anders Lundgren, Jan Larsson, Torbjörn et al.

Weitere Verfasser: Peterson, Anders Lundgren, Jan Larsson, Torbjörn et al.

Quelle: Linköping Studies in Science and Technology. Dissertations.

Schlagwörter: Traffic modelling, Travel demand, Origin--Destination matrix, Traffic flow observation, Detector allocation, Estimation., OD-matris, Trafikflödesobservation, Detektorallokering, Skattning, Trafikmodellering, Reseefterfrågan, MATHEMATICS, Applied mathematics, Optimization, systems theory, MATEMATIK, Tillämpad matematik, Optimeringslära, systemteori

Dateibeschreibung: electronic

Zugangs-URL: https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-8859
https://liu.diva-portal.org/smash/get/diva2:23558/FULLTEXT01.pdf

Computation of Green's matrices for boundary value problems associated with a pair of mixed linear regular ordinary differential operators

Autoren: T. Gnana Bhaskar M. Venkatesulu

Quelle: International Journal of Mathematics and Mathematical Sciences, Vol 18, Iss 4, Pp 789-797 (1995)

Schlagwörter: nonexplicitly mixed, matchingly mixed, boundary value problem, Green's matrices., Mathematics, QA1-939

Dateibeschreibung: electronic resource

Relation: https://doaj.org/toc/0161-1712; https://doaj.org/toc/1687-0425

Zugangs-URL: https://doaj.org/article/3e4642421e454a7c8d5b4aa509244776

Computation of the M matrix for fourth-order problems

Autoren: Bennewitz, Christer Brown, B. Malcolm Evans, W. Desmond et al.

Weitere Verfasser: Bennewitz, Christer Brown, B. Malcolm Evans, W. Desmond et al.

Quelle: Royal Society of London. Proceedings A. Mathematical, Physical and Engineering Sciences. 452(1951):1765-1788

Schlagwörter: Natural Sciences, Mathematical Sciences, Naturvetenskap, Matematik

Pushing the Online Boolean Matrix-vector Multiplication conjecture off-line and identifying its easy cases

Autoren: Gasieniec, Leszek Jansson, Jesper Levcopoulos, Christos et al.

Quelle: Journal of computer and system sciences (Print). 118:108-118

Schlagwörter: Boolean matrix, Product of matrix and vector, Dynamic graph problems, Online computation, Time complexity

Dateibeschreibung: print

Zugangs-URL: https://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-41520

Decentralizing Network Inference Problems with Multiple-Description Fusion Estimation (MDFE)

Autoren: Malboubi, Mehdi Vu, Cuong Chuah, Chen-Nee et al.

Quelle: IEEE Transactions on Networking. 24(4)

Schlagwörter: Information and Computing Sciences, Engineering, Computer Vision and Multimedia Computation, Distributed estimation, multiple description fusion, network inference, traffic matrix estimation, under-determined inverse problem, Distributed Computing, Electrical and Electronic Engineering, Communications Technologies, Networking & Telecommunications, Communications engineering, Distributed computing and systems software

Dateibeschreibung: application/pdf

Zugangs-URL: https://escholarship.org/uc/item/4651z504
https://escholarship.org/content/qt4651z504/qt4651z504.pdf

Computation of spatial error model with matrix exponential spatial specification approach

Autoren: Marsono Marsono Setiawan Setiawan Heri Kuswanto

Quelle: IJAIN (International Journal of Advances in Intelligent Informatics), Vol 10, Iss 3, Pp 410-424 (2024)

Schlagwörter: spatial error model, mess(0,1), maximum likelihood estimation, gross regional domestic product, Electronic computers. Computer science, QA75.5-76.95

Dateibeschreibung: electronic resource

Relation: https://ijain.org/index.php/IJAIN/article/view/1506; https://doaj.org/toc/2442-6571; https://doaj.org/toc/2548-3161

Zugangs-URL: https://doaj.org/article/d911d281c00b477a80bae500fa45381f

A framework for efficient execution of matrix computations

Autoren: Herrero Zaragoza, Jose Ramón

Weitere Verfasser: University/Department: Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors

Thesis Advisors: Navarro, Juan J. (Juan José)

Quelle: TDX (Tesis Doctorals en Xarxa)

Schlagwörter: nonlinear array layouts, hypermatrix, dense and sparse linear algebra, inner kernels, high performance computing, matrix computations, performance tuning

Dateibeschreibung: application/pdf

Zugangs-URL: http://www.tdx.cat/TDX-1030106-125502
http://hdl.handle.net/10803/5991
https://dx.doi.org/10.5821/dissertation-2117-93306