Search Results - approximate factorization errors

Methods for Reducing Approximate-Factorization Errors in Two- and Three-Factored Schemes: Methods for reducing approximate-factorization errors in two- and three- factored schemes

Authors: Erlendur Steinthorsson Tom I-P. Shih

Source: SIAM Journal on Scientific Computing. 14:1214-1236

Subject Terms: Iterative numerical methods for linear systems, 0209 industrial biotechnology, Error bounds for initial value and initial-boundary value problems involving PDEs, convergence, Finite difference methods for initial value and initial-boundary value problems involving PDEs, 0103 physical sciences, 02 engineering and technology, stability, Stability and convergence of numerical methods for initial value and initial-boundary value problems involving PDEs, approximate factorization errors, 01 natural sciences

File Description: application/xml

Access URL: https://zbmath.org/459180
https://doi.org/10.1137/0914072
https://dl.acm.org/doi/10.1137/0914072
https://dblp.uni-trier.de/db/journals/siamsc/siamsc14.html#SteinthorssonS93
https://doi.org/10.1137/0914072
https://epubs.siam.org/doi/abs/10.1137/0914072?journalCode=sjoce3
https://locus.siam.org/doi/abs/10.1137/0914072

A New Matrix Truncation Method for Improving Approximate Factorization Preconditioners.

Authors: Bock, Andreas A. Andersen, Martin S.

Source: Numerical Linear Algebra with Applications; Apr2025, Vol. 32 Issue 2, p1-19, 19p

Subject Terms: SINGULAR value decomposition, POSITIVE systems, MATRIX decomposition, FACTORIZATION

An Exponentially-Tight Approximate Factorization of the Joint PDF of Statistical Dependent Measurements in Wireless Sensor Networks

Authors: Juan Augusto Maya Leonardo Rey Vega Andrea M. Tonello

Source: IEEE Open Journal of the Communications Society, Vol 5, Pp 221-237 (2024)

Subject Terms: Distributed detection, wireless sensor networks, joint PDF factorization, statistically dependent observations, Telecommunication, TK5101-6720, Transportation and communications, HE1-9990

File Description: electronic resource

Relation: https://ieeexplore.ieee.org/document/10315166/; https://doaj.org/toc/2644-125X

Access URL: https://doaj.org/article/eda1be5cd9a248dda4493c57eb215d3e

Image Coding With Data-Driven Fast Transforms Based on Approximate Givens Factorizations

Authors: Dilshan Morawaliyadda Pradeepa Yahampath

Source: IEEE Access, Vol 13, Pp 144079-144091 (2025)

Subject Terms: Transform coding, image compression, fast transforms, data-driven transforms, givens rotations, orthogonal matrix manifold, Electrical engineering. Electronics. Nuclear engineering, TK1-9971

File Description: electronic resource

Relation: https://ieeexplore.ieee.org/document/11121183/; https://doaj.org/toc/2169-3536

Access URL: https://doaj.org/article/96f81205a88b48e3b910c3137ad1f2cd

Second Order Accurate Hierarchical Approximate Factorization of Sparse SPD Matrices

Authors: Klockiewicz, Bazyli Cambier, Léopold Humble, Ryan et al.

Index Terms: Mathematics - Numerical Analysis, text

URL: http://arxiv.org/abs/2007.00789

On some approximate calculations for certain pseudo-differential equations

Authors: V.B. Vasilyev

Source: Қарағанды университетінің хабаршысы. Математика сериясы, Vol 91, Iss 3 (2018)

Subject Terms: discrete pseudo-differential operator, periodic factorization, solvability, approximate solution, error estimates, Analysis, QA299.6-433, Analytic mechanics, QA801-939, Probabilities. Mathematical statistics, QA273-280

File Description: electronic resource

Relation: http://mathematics-vestnik.ksu.kz/index.php/mathematics-vestnik/article/view/181; https://doaj.org/toc/2518-7929; https://doaj.org/toc/2663-5011

Access URL: https://doaj.org/article/7da2c2b7da424c4a844b66fe0a0088ec

Second‐order accurate hierarchical approximate factorizations for solving sparse linear systems.

Authors: Klockiewicz, Bazyli Cambier, Léopold Humble, Ryan et al.

Source: International Journal for Numerical Methods in Engineering; 11/30/2022, Vol. 123 Issue 22, p5473-5499, 27p

Subject Terms: GAUSSIAN elimination, CONJUGATE gradient methods, KRYLOV subspace, MATRIX decomposition, FACTORIZATION

Implicit, compact, linearized θ-methods with factorization for multidimensional reaction-diffusion equations: Implicit, compact, linearized \(\theta\)-methods with factorization for multidimensional reaction-diffusion equations

Authors: Juan I. Ramos

Source: Applied Mathematics and Computation. 94:17-43

Subject Terms: convergence, error bounds, compact methods, approximate factorization errors, 01 natural sciences, Error bounds for initial value and initial-boundary value problems involving PDEs, reaction-diffusion equations, Reaction-diffusion equations, Finite difference methods for initial value and initial-boundary value problems involving PDEs, 0103 physical sciences, predictor-corrector techniques, 0101 mathematics, Stability and convergence of numerical methods for initial value and initial-boundary value problems involving PDEs, linear stability, three-point schemes

File Description: application/xml

Access URL: https://zbmath.org/1311182
https://doi.org/10.1016/s0096-3003(97)10103-5
http://www.biblioteca.uma.es/bbldoc/articulos/16724744.pdf
https://www.sciencedirect.com/science/article/abs/pii/S0096300397101035

HIERARCHICAL ORTHOGONAL FACTORIZATION: SPARSE SQUARE MATRICES.

Authors: GNANASEKARAN, ABEYNAYA DARVE, ERIC

Source: SIAM Journal on Matrix Analysis & Applications; 2022, Vol. 43 Issue 1, p94-123, 30p

Subject Terms: SPARSE matrices, FACTORIZATION, APPROXIMATION error, BENCHMARK problems (Computer science), LINEAR systems

Approximate Factorization Method Using Alternating Cell Direction Implicit Method: Comparison of Convergence Characteristics Using Basic Model Equations.

Authors: ÇETE, Ali Ruhşen

Source: Kuwait Journal of Science; 2021, Vol. 48 Issue 3, p1-13, 13p

Subject Terms: POTENTIAL flow, INCOMPRESSIBLE flow, EQUATIONS

Improved accuracy for the approximate factorization of parabolic equations.

Authors: Karaa, S.

Source: Computing; Oct2009, Vol. 86 Issue 1, p23-36, 14p

Subject Terms: FACTORIZATION, PARABOLIC differential equations, EQUATIONS, STOCHASTIC convergence, MATHEMATICS

Variational approximation error in non-negative matrix factorization.

Authors: Hayashi N; Simulation & Mining Division, NTT DATA Mathematical Systems Inc., 1F Shinanomachi Rengakan, 35, Shinanomachi, Shinjuku-ku, Tokyo, 160-0016, Japan; Department of Mathematical and Computing Science, Tokyo Institute of Technology, Mail-Box W8-42, 2-12-1, Oookayama, Meguro-ku, Tokyo, 152-8552, Japan. Electronic address: hayashi@msi.co.jp.

Source: Neural networks : the official journal of the International Neural Network Society [Neural Netw] 2020 Jun; Vol. 126, pp. 65-75. Date of Electronic Publication: 2020 Mar 13.

Publication Type: Journal Article

Journal Info: Publisher: Pergamon Press Country of Publication: United States NLM ID: 8805018 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-2782 (Electronic) Linking ISSN: 08936080 NLM ISO Abbreviation: Neural Netw Subsets: MEDLINE

MeSH Terms: Machine Learning*, Bayes Theorem ; Information Management/methods

NORMALIZATION OF WIENER-HOPF FACTORIZATION FOR MATRIX FUNCTIONS WITH DISTINCT PARTIAL INDICES.

Authors: ADUKOV, VICTOR

Source: Transactions of A. Razmadze Mathematical Institute; 2022, Vol. 176 Issue 3, p313-321, 9p

Subject Terms: MATRIX functions, MATRIX decomposition, FACTORIZATION

Stability analysis of matrix Wiener-Hopf factorization of Daniele-Khrapkov class and reliable approximate factorization.

Authors: Kisil, Anastasia V.

Source: Proceedings of the Royal Society A: Mathematical, Physical & Engineering Sciences; 6/8/2015, Vol. 471 Issue 2178, p1-15, 15p

Subject Terms: WIENER-Hopf equations, STABILITY theory, MATRICES (Mathematics), FACTORIZATION, SET theory, APPROXIMATION theory

Approximate factorization of molecular potential surfaces. I. Basic approach.

Authors: Madsen, D. Pearman, R. Gruebele, M.

Source: Journal of Chemical Physics; 4/8/1997, Vol. 106 Issue 14, p5874, 20p, 5 Diagrams, 12 Charts, 16 Graphs

Subject Terms: POTENTIAL energy surfaces, POTENTIAL theory (Mathematics), FACTORIZATION

Localized inverse factorization.

Authors: Rubensson, Emanuel H Artemov, Anton G Kruchinina, Anastasia et al.

Source: IMA Journal of Numerical Analysis; Jan2021, Vol. 41 Issue 1, p729-763, 35p

Subject Terms: FACTORIZATION, MATRIX decomposition, PARALLEL programming, DENSITY functional theory, MATRIX inversion, ELECTRONIC structure, ITERATIVE learning control, DENSITY matrices

Stability of approximate factorization with $ heta $-methods

Authors: Hundsdorfer, W. (Willem)

Index Terms: info:eu-repo/semantics/other

URL: http://ir.cwi.nl/pub/4724

Approximate factorization for a viscous wave equation.

Authors: Karaa, Samir

Source: Computing; Sep2010, Vol. 89 Issue 3/4, p199-215, 17p, 3 Charts, 1 Graph

Subject Terms: APPROXIMATION theory, LINEAR systems, WAVE equation, THEORY of wave motion, FOURIER analysis

Maximum Likelihood Estimation of Hierarchical Linear Models from Incomplete Data: Random Coefficients, Statistical Interactions, and Measurement Error

Authors: Shin, Yongyun Raudenbush, Stephen W.

Source: Grantee Submission. 2023.

Peer Reviewed: Y

Page Count: 44

Sponsoring Agency: Institute of Education Sciences (ED)

Descriptors: Maximum Likelihood Statistics, Hierarchical Linear Modeling, Error of Measurement, Statistical Distributions, Inferences, Predictor Variables, Computation, Context Effect, Probability, Family Income, Prediction, Equations (Mathematics), Simulation, Statistical Analysis, Interaction

IES Funded: Yes

A simplified Wiener–Hopf factorization method for pricing double barrier options under Lévy processes.

Authors: Kudryavtsev, Oleg

Source: Computational Management Science; 6/9/2024, Vol. 21 Issue 1, p1-30, 30p

Subject Terms: LEVY processes, LAPLACE transformation, FACTORIZATION, DISTRIBUTION (Probability theory), NEWTON-Raphson method, PRICES, CHARACTERISTIC functions