Suchergebnisse - "Multi-level methods"

A block-coordinate approach of multi-level optimization with an application to physics-informed neural networks

Autoren: Gratton, Serge Mercier, Valentin Riccietti, Elisa et al.

Weitere Verfasser: Gratton, Serge Mercier, Valentin Riccietti, Elisa et al.

Quelle: Gratton, S, Mercier, V, Riccietti, E & TOINT, P 2023 ' A Block-Coordinate Approach of Multi-level Optimization with an Application to Physics-Informed Neural Networks ' Arxiv .

Schlagwörter: FOS: Computer and information sciences, Numerical optimization and variational techniques, Computer Science - Machine Learning, 0211 other engineering and technologies, 02 engineering and technology, nonlinear optimization, 01 natural sciences, Machine Learning (cs.LG), Nonlinear programming, partial differential equations, multi-level methods, FOS: Mathematics, [INFO]Computer Science [cs], [MATH]Mathematics [math], 0101 mathematics, Mathematics - Optimization and Control, Artificial neural networks and deep learning, deep learning, [MATH.MATH-OC] Mathematics [math]/Optimization and Control [math.OC], physics-informed neural networks (PINNs), Optimization and Control (math.OC), partial differential equations (PDEs), [MATH.MATH-OC]Mathematics [math]/Optimization and Control [math.OC]

Dateibeschreibung: application/xml; application/pdf

Zugangs-URL: http://arxiv.org/abs/2305.14477
https://pure.unamur.be/ws/files/81620362/arXiv_2023.14477.pdf

Is a Decentralised Health Policy Associated With Better Self-rated Health and Health Services Evaluation? A Comparative Study of European Countries

Autoren: Pål E. Martinussen Håvard T. Rydland

Quelle: International Journal of Health Policy and Management, Vol 10, Iss 2, Pp 55-66 (2021)

Schlagwörter: decentralisation, self-rated health, health services satisfaction, europe, multi-level methods, Public aspects of medicine, RA1-1270

Dateibeschreibung: electronic resource

Relation: https://www.ijhpm.com/article_3762_aa43877092142762c2ede2519053490d.pdf; https://doaj.org/toc/2322-5939

Zugangs-URL: https://doaj.org/article/42fc53c2421e4a5abb98b48f40a1109c

A Localized Version of the Method of Fundamental Solutions in a Multi-level Context

Autoren: Gáspár, Csaba

Quelle: Periodica Polytechnica Civil Engineering; Vol. 67 No. 3 (2023); 716-724 ; 1587-3773 ; 0553-6626

Schlagwörter: method of fundamental solutions, local schemes, multi-level methods, quadtrees

Dateibeschreibung: application/pdf

Relation: https://pp.bme.hu/ci/article/view/21535/9732; https://pp.bme.hu/ci/article/view/21535

Verfügbarkeit: https://pp.bme.hu/ci/article/view/21535

The Multi-index Stochastic Collocation method for uncertainty quantification of PDEs with random parameters

Autoren: J Beck L Tamellini R Tempone

Quelle: UQ@DIITET/CNR Workshop on methods and applications of computational Uncertainty Quantification: experiences and perspectives within DIITET-CNR, pp. 36–38, Online, 2/10/2020
info:cnr-pdr/source/autori:J. Beck, L. Tamellini, and R. Tempone/congresso_nome:UQ@DIITET%2FCNR Workshop on methods and applications of computational Uncertainty Quantification: experiences and perspectives within DIITET-CNR/congresso_luogo:Online/congresso_data:2%2F10%2F2020/anno:2021/pagina_da:36/pagina_a:38/intervallo_pagine:36–38

Schlagwörter: Stochastic collocation, multi-level methods, PDE with random coefficients, combination technique

Dateibeschreibung: application/pdf

Zugangs-URL: https://publications.cnr.it/doc/486053
https://drive.google.com/file/d/1w2pRgZQYi6TIf4WqeupM3Z66j4WW1EzX/view
http://www.cnr.it/prodotto/i/486053
https://drive.google.com/file/d/1w2pRgZQYi6TIf4WqeupM3Z66j4WW1EzX/view
https://hdl.handle.net/20.500.14243/463463

A Block-Coordinate Approach of Multi-level Optimization with an Application to Physics-Informed Neural Networks

Autoren: Gratton, Serge Mercier, Valentin Riccietti, Elisa et al.

Weitere Verfasser: Gratton, Serge Mercier, Valentin Riccietti, Elisa et al.

Quelle: https://hal.science/hal-04104450 ; 2023.

Schlagwörter: partial differential equations, nonlinear optimization, multi-level methods, physics-informed neural networks (PINNs), deep learning, [INFO]Computer Science [cs], [MATH]Mathematics [math]

Verfügbarkeit: https://hal.science/hal-04104450
https://hal.science/hal-04104450v1/document
https://hal.science/hal-04104450v1/file/MPINNSv1.pdf

V-cycle Multigrid Algorithms for Discontinuous Galerkin Methods on Non-nested Polytopic Meshes

Autoren: Antonietti, P. F. PENNESI, GIORGIO

Quelle: Journal of Scientific Computing. 78:625-652

Schlagwörter: Discontinuous Galerkin · Polygonal grids · Multi-level methods · V -cycle ·Non-nested spaces, FOS: Mathematics, 65F10, 65M55, 65N22, Mathematics - Numerical Analysis, Numerical Analysis (math.NA), 0101 mathematics, 01 natural sciences

Dateibeschreibung: application/pdf

Zugangs-URL: https://re.public.polimi.it/bitstream/11311/1057623/4/Antonietti-Pennesi2019_Article_V-cycleMultigridAlgorithmsForD.pdf
http://arxiv.org/abs/1709.09147
https://dblp.uni-trier.de/db/journals/corr/corr1709.html#abs-1709-09147
https://re.public.polimi.it/handle/11311/1057623
https://re.public.polimi.it/bitstream/11311/1057623/4/Antonietti-Pennesi2019_Article_V-cycleMultigridAlgorithmsForD.pdf
https://link.springer.com/article/10.1007/s10915-018-0783-x
https://arxiv.org/abs/1709.09147
https://link.springer.com/10.1007/s10915-018-0783-x

Multi-index Stochastic Collocation Convergence Rates for Random PDEs with Parametric Regularity

Autoren: AL HajiAli F Nobile L Tamellini et al.

Weitere Verfasser: AL HajiAli F Nobile L Tamellini et al.

Quelle: Foundations of computational mathematics
16 (2016): 1555–1605. doi:10.1007/s10208-016-9327-7
info:cnr-pdr/source/autori:A.-L. Haji-Ali, F. Nobile, L. Tamellini, and R. Tempone/titolo:Multi-index stochastic collocation convergence rates for random PDEs with parametric regularity/doi:10.1007%2Fs10208-016-9327-7/rivista:Foundations of computational mathematics (Print)/anno:2016/pagina_da:1555/pagina_a:1605/intervallo_pagine:1555–1605/volume:16

Schlagwörter: Finite element method, Multi-index Stochastic Collocation, Elliptic partial differential equations with random coefficients, Sparse grids, Numerical Analysis (math.NA), 01 natural sciences, Stochastic Collocation methods, 41A10, 65C20, 65N30, 65N05, Multi-level, Random partial differential equations, Infinite dimensional integration, FOS: Mathematics, Multivariate approximation, Mathematics - Numerical Analysis, Multi-level methods, 0101 mathematics, Combination technique, Uncertainty quantification

Dateibeschreibung: application/pdf

Zugangs-URL: http://arxiv.org/pdf/1511.05393
http://arxiv.org/abs/1511.05393
https://hdl.handle.net/20.500.14243/316665
http://link.springer.com/article/10.1007/s10208-016-9327-7
https://doi.org/10.1007/s10208-016-9327-7

Child Care Time, Parents’ Well-Being, and Gender: Evidence from the American Time Use Survey: Evidence from the American Time Use Survey

Autoren: ROETERS, Anne GRACIA, Pablo Social Networks, Solidarity and Inequality et al.

Weitere Verfasser: ROETERS, Anne GRACIA, Pablo Social Networks, Solidarity and Inequality et al.

Quelle: J Child Fam Stud

Schlagwörter: Parental care time, Original Paper, Wellbeing, 05 social sciences, Gender, 5. Gender equality, Taverne, Developmental and Educational Psychology, 0501 psychology and cognitive sciences, Multi-level methods, 0509 other social sciences, Time use, Life-span and Life-course Studies

Dateibeschreibung: application/pdf

Zugangs-URL: https://link.springer.com/content/pdf/10.1007%2Fs10826-016-0416-7.pdf
https://pubmed.ncbi.nlm.nih.gov/27440990
http://www.tara.tcd.ie/handle/2262/93898
https://pubmed.ncbi.nlm.nih.gov/27440990/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4933733/
https://paperity.org/p/75796715/child-care-time-parents-well-being-and-gender-evidence-from-the-american-time-use-survey
https://www.narcis.nl/publication/RecordID/oai%3Adspace.library.uu.nl%3A1874%2F342270
https://core.ac.uk/display/131933721
https://dspace.library.uu.nl/handle/1874/342270
https://hdl.handle.net/1814/47327
http://people.tcd.ie/graciap
https://hdl.handle.net/2262/93898

Multi-level meshless methods based on direct multi-elliptic interpolation

Autoren: C. Gáspár

Quelle: Journal of Computational and Applied Mathematics. 226:259-267

Schlagwörter: Radial basis functions, Computational Mathematics, Meshless methods, Applied Mathematics, 0103 physical sciences, Multi-elliptic interpolation, Multi-level methods, 0101 mathematics, 01 natural sciences

Zugangs-URL: https://www.sciencedirect.com/science/article/abs/pii/S0377042708004056
https://www.sciencedirect.com/science/article/pii/S0377042708004056
http://ui.adsabs.harvard.edu/abs/2009JCoAM.226..259G/abstract
https://dl.acm.org/doi/abs/10.1016/j.cam.2008.08.005
https://core.ac.uk/display/82520598

On algebraic multi-level methods for non-symmetric systems – Comparison results

Autoren: C. Mense Reinhard Nabben

Quelle: Linear Algebra and its Applications. 429:2567-2588

Schlagwörter: Numerical Analysis, Algebra and Number Theory, Algebraic multi-level methods, Algebraic multigrid methods, Discrete Mathematics and Combinatorics, Geometry and Topology, 0101 mathematics, Multi-level approximate block factorizations, AMLI method, 01 natural sciences

Zugangs-URL: https://core.ac.uk/display/82380845
https://www.sciencedirect.com/science/article/abs/pii/S0024379508002280
https://www.sciencedirect.com/science/article/pii/S0024379508002280

Computational modeling for multiphase flows with spacecraft application

Autoren: Uzgoren, Eray Singh, Rajkeshar Sim, Jaeheon et al.

Quelle: Progress in Aerospace Sciences. 43:138-192

Schlagwörter: Immersed boundary method, Interface tracking, 0103 physical sciences, Parallel computation, Hilbert space filling curve, Multi-level methods, Adaptive Cartesian grid, 01 natural sciences

Zugangs-URL: https://core.ac.uk/display/34041559
http://repository.ust.hk/ir/Record/1783.1-54723
http://www.sciencedirect.com/science/article/pii/S0376042107000498
http://ui.adsabs.harvard.edu/abs/2007PrAeS..43..138U/abstract
https://www.sciencedirect.com/science/article/pii/S0376042107000498

A meshless polyharmonic-type boundary interpolation method for solving boundary integral equations

Autoren: Csaba Gáspár

Quelle: Engineering Analysis with Boundary Elements. 28:1207-1216

Schlagwörter: meshless methods, polyharmonic interpolation, quadtree, Laplace operator, Helmholtz equation (reduced wave equation), Poisson equation, biharmonic equation, scattered data interpolation, polyharmonic equation, Boundary element methods for boundary value problems involving PDEs, Poisson equation, 01 natural sciences, boundary element method, Boundary value problems for higher-order elliptic equations, Numerical interpolation, biharmonic interpolation, multi-level methods, 0101 mathematics, Laplace-Poisson equation

Dateibeschreibung: application/xml

Zugangs-URL: https://zbmath.org/2211135
https://doi.org/10.1016/j.enganabound.2003.04.001
https://www.sciencedirect.com/science/article/pii/S0955799704000141

Bifurcation analysis of incompressible flow in a driven cavity by the Newton–Picard method: Bifurcation analysis of incompressible flow in a driven cavity by the Newton-Picard method

Autoren: Arthur Veldman G. Tiesinga Fred Wubs

Quelle: Journal of Computational and Applied Mathematics. 140:751-772

Schlagwörter: NAVIER-STOKES, eigenvalue problems, algebraic multi-level methods, Applied Mathematics, finite volume method, Finite volume methods applied to problems in fluid mechanics, 01 natural sciences, Finite difference methods applied to problems in fluid mechanics, Transition to turbulence, symmetry-preserving discretization, Computational Mathematics, Hydrodynamic stability, bifurcation analysis of periodic flow, 0103 physical sciences, 0101 mathematics, continuation, EQUATIONS, theta-method

Dateibeschreibung: application/xml

Zugangs-URL: https://hdl.handle.net/11370/7de815d4-b5a8-4ea4-a01c-24c8617de187
https://research.rug.nl/en/publications/7de815d4-b5a8-4ea4-a01c-24c8617de187
https://ui.adsabs.harvard.edu/abs/2002JCoAM.140..751T/abstract
https://www.sciencedirect.com/science/article/abs/pii/S0377042701005155
https://www.sciencedirect.com/science/article/pii/S0377042701005155
http://www.rug.nl/research/portal/publications/bifurcation-analysis-of-incompressible-flow-in-a-driven-cavity-by-the-newtonpicard-method(7de815d4-b5a8-4ea4-a01c-24c8617de187).html

Enhanced multi-level block ILU preconditioning strategies for general sparse linear systems

Autoren: Yousef Saad Jun Zhang

Quelle: Journal of Computational and Applied Mathematics. 130:99-118

Schlagwörter: Algebraic multigrid method, Iterative numerical methods for linear systems, incomplete LU factorization, Multigrid methods, domain decomposition for boundary value problems involving PDEs, Numerical solutions to overdetermined systems, pseudoinverses, Incomplete LU factorization, Applied Mathematics, Numerical computation of matrix norms, conditioning, scaling, Multi-level ILU preconditioner, Multi-elimination ILU factorization, 01 natural sciences, Computational methods for sparse matrices, multi-level ILU preconditioner, Computational Mathematics, multi-elimination ILU factorization, preconditioning, Krylov subspace methods, large sparse linear systems, multi-level methods, singular-value decomposition, algebraic multigrid method, 0101 mathematics, numerical experiments

Dateibeschreibung: application/xml

Zugangs-URL: https://zbmath.org/1618644
https://doi.org/10.1016/s0377-0427(99)00388-x
https://www.sciencedirect.com/science/article/pii/S037704279900388X
https://experts.umn.edu/en/publications/enhanced-multilevel-block-ilu-preconditioning-strategies-for-general-sparse-linear-systems(72f33c82-6d7b-4981-ba98-4fc0f4656450).html
https://dialnet.unirioja.es/servlet/articulo?codigo=725224
https://www.sciencedirect.com/science/article/abs/pii/S037704279900388X
https://ui.adsabs.harvard.edu/abs/2001JCoAM.130...99S/abstract
https://experts.umn.edu/en/publications/enhanced-multi-level-block-ilu-preconditioning-strategies-for-gen

Comparison of parallel implementation of some multi-level Schwarz methods for singularly perturbed parabolic problems

Autoren: V. Sirotkin P. Tarvainen

Quelle: Journal of Computational and Applied Mathematics. 104:193-212

Schlagwörter: Parallel computing, Method of lines for initial value and initial-boundary value problems involving PDEs, implicit Euler method, Iterative numerical methods for linear systems, Applied Mathematics, Parallel numerical computation, Schwarz method, numerical results, algorithms, 01 natural sciences, Computational Mathematics, Multi-level Schwarz method, Multigrid methods, domain decomposition for initial value and initial-boundary value problems involving PDEs, Finite difference methods for initial value and initial-boundary value problems involving PDEs, 0103 physical sciences, multi-level methods, Singularly perturbed parabolic problem, parabolic problem, Initial value problems for second-order parabolic equations, 0101 mathematics, parallel computation, singular perturbation, Singular perturbations in context of PDEs

Dateibeschreibung: application/xml

Zugangs-URL: https://zbmath.org/1326098
https://doi.org/10.1016/s0377-0427(99)00057-6
https://www.sciencedirect.com/science/article/abs/pii/S0377042799000576
http://directory.umm.ac.id/Data%20Elmu/jurnal/J-a/Journal%20of%20Computational%20And%20Applied%20Mathematics/Vol104.Issue2.1999/2774.pdf
https://www.sciencedirect.com/science/article/pii/S0377042799000576

How fast the Laplace equation was solved in 1995

Autoren: Botta, E.F.F. Dekker, K. Notay, Y. et al.

Quelle: Applied numerical mathematics. 24(4):439-455

Schlagwörter: benchmark, preconditioning, multi-level methods, Krylov subspace methods, iterative methods, LINEAR-SYSTEMS, MATRIX, incomplete LU, direct methods

Zugangs-URL: https://hdl.handle.net/11370/c1954f82-70a3-463d-8035-54cfd75f3136
https://research.rug.nl/en/publications/c1954f82-70a3-463d-8035-54cfd75f3136

Multi-level higher order QMC Galerkin discretization for affine parametric operator equations

Autoren: Dick, Josef Kuo, Frances Y. Le Gia, Quoc T. et al.

Quelle: SAM Research Report, 2014-14

Schlagwörter: Quasi-Monte Carlo methods, Multi-level methods, Interlaced polynomial lattice rules, Higher order digital nets, Affine parametric operator equations, Infinite dimensional quadrature, Petrov- Galerkin discretization, info:eu-repo/classification/ddc/510, Mathematics

Dateibeschreibung: application/application/pdf

Relation: info:eu-repo/grantAgreement/EC/FP7/247277; http://hdl.handle.net/20.500.11850/94625

Verfügbarkeit: https://hdl.handle.net/20.500.11850/94625
https://doi.org/10.3929/ethz-a-010386245

Multi-Level Monte-Carlo Finite Element Methods for stochastic elliptic variational inequalities

Autoren: Kornhuber, Ralf Schwab, Christoph Wolf, Maren-Wanda

Quelle: SAM Research Report, 2013-12

Schlagwörter: Multi-Level Monte-Carlo, Stochastic Partial Differential Equations, Stochastic Finite Element Methods, Multi--Level Methods, Variational Inequalities, info:eu-repo/classification/ddc/510, Mathematics

Dateibeschreibung: application/application/pdf

Relation: info:eu-repo/grantAgreement/EC/FP7/247277; http://hdl.handle.net/20.500.11850/571348

Verfügbarkeit: https://hdl.handle.net/20.500.11850/571348
https://doi.org/10.3929/ethz-a-010391178

Spatial multi-level interacting particle simulations and information theory-based error quantification

Autoren: Kalligiannaki, Evangelia Katsoulakis, Markos Plechac, Petr

Schlagwörter: relative entropy, FOS: Physical sciences, Numerical Analysis (math.NA), Computational Physics (physics.comp-ph), phase transition, course graining, multi-level methods, FOS: Mathematics, multiple scales, Mathematics - Numerical Analysis, 65C05, 65C20, 82C22, 82C20, Physics - Computational Physics, kinetic Monte Carlo, error analysis, Mathematics, information theory

Dateibeschreibung: application/pdf

Zugangs-URL: http://arxiv.org/abs/1208.0730

Replication Data for: Realizing Joint Extreme-Scale Simulations on Multiple Supercomputers - Two Superfacility Case Studies

Autoren: Pollinger, Theresa Van Craen, Alexander Offenhäuser, Philipp

Weitere Verfasser: Pollinger, Theresa Van Craen, Alexander Offenhäuser, Philipp

Schlagwörter: Computer and Information Science, Physics, Coupling HPC Systems, Combination Technique, Multi-Level Methods, Higher-Dimensional Simulation, UFTP

Relation: Pollinger, Theresa, 2023, "Replication Data for: Leveraging the compute power of two HPC systems for higher-dimensional grid-based simulations with the widely-distributed sparse grid combination technique", DaRUS, https://doi.org/10.18419/darus-3393

Verfügbarkeit: https://doi.org/10.18419/DARUS-3707