A novel projection-based method for monotone equations with Aitken Δ2 acceleration and its application to sparse signal restoration: A novel projection-based method for monotone equations with aitken \(\Delta^2\) acceleration and its application to sparse signal restoration

Συγγραφείς: Ahmad Kamandi

Πηγή: Applied Numerical Mathematics. 213:1-11

Θεματικοί όροι: large scale systems, projection based method, signal restoration, aitken \(\Delta^2\) process, systems of monotone equations, Numerical methods for mathematical programming, optimization and variational techniques, Mathematical programming, Nonlinear algebraic or transcendental equations, normalized negative residual

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Σύνδεσμος πρόσβασης: https://zbmath.org/8034914
https://doi.org/10.1016/j.apnum.2025.02.013

Grid is Good. Adaptive Refinement Algorithms for Off-the-Grid Total Variation Minimization: Grid is good. Adaptive refinement algorithms for off-the-grid total variation minimization

Συγγραφείς: Flinth, Axel, de Gournay, Frédéric, Weiss, Pierre

Πηγή: Open Journal of Mathematical Optimization. 6:1-27

Θεματικοί όροι: Total variation, measure spaces, Beräkningsmatematik, Communication, information, 0211 other engineering and technologies, Mathematical programming, Frank-Wolfe, 02 engineering and technology, Computational Mathematics, Frank–Wolfe, total variation, Optimization and Control (math.OC), Numerical methods for mathematical programming, optimization and variational techniques, 0202 electrical engineering, electronic engineering, information engineering, FOS: Mathematics, Mathematics - Optimization and Control

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Σύνδεσμος πρόσβασης: http://arxiv.org/abs/2301.07555
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-242250

Hyper-differential sensitivity analysis with respect to model discrepancy: Posterior optimal solution sampling: Hyper-differential sensitivity analysis with respect to model discrepancy: posterior optimal solution sampling

Συγγραφείς: Hart, Joseph, Waanders, Bart van Bloemen

Πηγή: Foundations of Data Science. 7:99-133

Θεματικοί όροι: Numerical optimization and variational techniques, post-optimality sensitivity analysis, Numerical methods for mathematical programming, optimization and variational techniques, Bayesian analysis, FOS: Mathematics, PDE-constrained optimization, model discrepancy, Probabilistic methods, stochastic differential equations, Mathematics - Numerical Analysis, Numerical Analysis (math.NA), 0101 mathematics, hyper-differential sensitivity analysis, 01 natural sciences

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Σύνδεσμος πρόσβασης: http://arxiv.org/abs/2402.10957
https://zbmath.org/7985324
https://doi.org/10.3934/fods.2024027

Efficient image restoration via non-convex total variation regularization and ADMM optimization

Συγγραφείς: Narendra Kumar, Munnu Sonkar, Gaurav Bhatnagar

Πηγή: Applied Mathematical Modelling. 132:428-453

Θεματικοί όροι: non-convex optimization, total variation, image deconvolution, Numerical methods for mathematical programming, optimization and variational techniques, Communication, information, alternating direction method of multipliers, sparsity, Mathematical programming, image restoration, \( l_{\frac{ 1}{ 2}}\) regularization

Περιγραφή αρχείου: application/xml

An adaptive fractional-order regularization primal-dual image denoising algorithm based on non-convex function

Συγγραφείς: Minmin Li, Shaojiu Bi, Guangcheng Cai

Πηγή: Applied Mathematical Modelling. 131:67-83

Θεματικοί όροι: image denoising, Numerical methods for mathematical programming, optimization and variational techniques, Communication, information, primal-dual algorithm, Mathematical programming, non-convex function, diffusion coefficient, complexity analysis, fractional-order

Περιγραφή αρχείου: application/xml

A New Golden Ratio Inertial Algorithm with Two Types of Self Adaptive Step Sizes for Solving Nonlinear Inclusion Problems: A new golden ratio inertial algorithm with two types of self adaptive step sizes for solving nonlinear inclusion problems

Συγγραφείς: Zhong-bao Wang, Xing-yu Chen, Zhang-you Chen

Πηγή: Journal of Scientific Computing. 103

Θεματικοί όροι: Numerical methods for mathematical programming, optimization and variational techniques, nonlinear inclusion problem, convergence and convergence rates, Mathematical programming, golden ratio algorithm, self adaptive step sizes, Equations and inequalities involving nonlinear operators, inertial accelerations

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Linewalker: line search for black box derivative-free optimization and surrogate model construction

Συγγραφείς: Papageorgiou, Dimitri J., Kronqvist, Jan, Kumaran, Krishnan

Πηγή: Optimization and Engineering. 25:2229-2293

Θεματικοί όροι: derivative-free optimization, Optimization and Control (math.OC), Numerical methods for mathematical programming, optimization and variational techniques, active learning, tabu search, FOS: Mathematics, Mathematical programming, surrogate model, black-box optimization, Mathematics - Optimization and Control, Operations research, mathematical programming, Gaussian process regression

Περιγραφή αρχείου: application/xml

Σύνδεσμος πρόσβασης: http://arxiv.org/abs/2307.10463

A multigrid assisted reanalysis method for accelerated heat transfer topology optimization

Συγγραφείς: Jichao Yin, Shuhao Li, Daozhen Guo, Hu Wang

Πηγή: Applied Mathematical Modelling. 125:402-423

Θεματικοί όροι: Numerical and other methods in solid mechanics, Numerical methods for mathematical programming, optimization and variational techniques, maximum temperature minimization, Optimization problems in solid mechanics, efficiency improvement, thermal compliance minimization, multigrid assisted reanalysis, topology optimization

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Neurodynamic optimization algorithm for split equality problems and application to sparse signal recovery

Συγγραφείς: Binghao OuYang, Yong Wang, Xingxing Ju, Weichuang Yu

Πηγή: Communications in Nonlinear Science and Numerical Simulation. 147:108822

Θεματικοί όροι: Numerical methods for mathematical programming, optimization and variational techniques, sparse signal recovery, Nonlinear operators and their properties, Mathematical programming, fixed-time convergence, sparse image reconstruction, neurodynamic optimization algorithm, split equality problems

Περιγραφή αρχείου: application/xml

Σύνδεσμος πρόσβασης: https://zbmath.org/8035187
https://doi.org/10.1016/j.cnsns.2025.108822

An accelerated spectral CG based algorithm for optimization techniques on Riemannian manifolds and its comparative evaluation

Συγγραφείς: Chunming Tang, Wancheng Tan, Yongshen Zhang, Zhixian Liu

Πηγή: Journal of Computational and Applied Mathematics. 462:116482

Θεματικοί όροι: global convergence, linear convergence rate, Numerical methods in optimal control, Numerical methods for mathematical programming, optimization and variational techniques, conjugate gradient method, Mathematical programming, accelerated method, Riemannian optimization

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Σύνδεσμος πρόσβασης: https://zbmath.org/7988019
https://doi.org/10.1016/j.cam.2024.116482

An outer space branch-reduction-bound algorithm using second-order cone relaxation with regional reduction strategy for solving equivalent generalized linear multiplicative programming

Συγγραφείς: Xiaoli Huang, Yuelin Gao, Bo Zhang, Xia Liu

Πηγή: Journal of Computational and Applied Mathematics. 462:116481

Θεματικοί όροι: Numerical methods for mathematical programming, optimization and variational techniques, global optimization, reduction technique, Mathematical programming, branch-and-bound, second-order cone relaxation, Operations research, mathematical programming, linear multiplicative programming

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Σύνδεσμος πρόσβασης: https://zbmath.org/7988018
https://doi.org/10.1016/j.cam.2024.116481

Selection of active elements for morphing tensegrities based on constructing basis for column space of sensitivity matrix

Συγγραφείς: Liu, Yuhang, Deng, Hua, Zhu, Dexi

Πηγή: Applied Mathematical Modelling. 119:257-272

Θεματικοί όροι: sensitivity matrix, Numerical methods for mathematical programming, optimization and variational techniques, length actuation, column space, tensegrity, morphing structure, Equilibrium (steady-state) problems in solid mechanics, Thin bodies, structures, active element

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Σύνδεσμος πρόσβασης: https://zbmath.org/8019317
https://doi.org/10.1016/j.apm.2023.02.030

Intensity inhomogeneity image segmentation based on the gradient-based spaces and the prior constraint

Συγγραφείς: Zhi-Feng Pang, Jinyan Yao, Baoli Shi, Haohui Zhu

Πηγή: Applied Mathematical Modelling. 119:605-625

Θεματικοί όροι: prior constraint, Computing methodologies and applications, Numerical methods for mathematical programming, optimization and variational techniques, iterative convolution-thresholding method, Mathematical programming, alternating direction method of multipliers (ADMM), intensity inhomogeneity image segmentation, gradient-based model

Περιγραφή αρχείου: application/xml

Σύνδεσμος πρόσβασης: https://zbmath.org/8019337
https://doi.org/10.1016/j.apm.2023.02.024

Weak enforcement of interface continuity and generalized periodicity in high‐order electromechanical problems

Συγγραφείς: Barceló‐Mercader, Jordi, Codony, David, Fernández‐Méndez, Sonia, Arias, Irene

Συνεισφορές: Universitat Politècnica de Catalunya. Centre Específic de Recerca de Mètodes Numèrics en Ciències Aplicades i Enginyeria, Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental, Centre Internacional de Mètodes Numèrics en Enginyeria, Universitat Politècnica de Catalunya. LACÀN - Mètodes Numèrics en Ciències Aplicades i Enginyeria

Πηγή: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
International Journal for Numerical Methods in Engineering

Θεματικοί όροι: Periodicity, 0211 other engineering and technologies, 02 engineering and technology, 01 natural sciences, Classificació AMS::65 Numerical analysis::65K Mathematical programming, Matemàtiques i estadística::Anàlisi numèrica [Àrees temàtiques de la UPC], Flexoelectricity, Unfitted discretization, Immersed boundary, High-order PDEs, Material interfaces, Strength of materials, 0101 mathematics, Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes numèrics, Resistència de materials, 65 Numerical analysis::65K Mathematical programming, optimization and variational techniques [Classificació AMS], Anàlisi numèrica, Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica, Matemàtiques i estadística::Anàlisi numèrica::Mètodes numèrics [Àrees temàtiques de la UPC], Classificació AMS::65 Numerical analysis::65K Mathematical programming, optimization and variational techniques, Classificació AMS::74 Mechanics of deformable solids::74S Numerical methods, Nitsche's method, 74 Mechanics of deformable solids::74S Numerical methods [Classificació AMS], optimization and variational techniques, Numerical analysis

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Σύνδεσμος πρόσβασης: https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/nme.6882
https://onlinelibrary.wiley.com/doi/10.1002/nme.6882?af=R
https://hdl.handle.net/2117/363222
https://doi.org/10.1002/nme.6882

Nonintrusive reduced order model for parametric solutions of inertia relief problems

Συγγραφείς: Xabier Larráyoz, Fabiola Cavaliere, Pedro Díez, Ruben Sevilla, Sergio Zlotnik

Συνεισφορές: Universitat Politècnica de Catalunya. Doctorat en Enginyeria Civil, Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental, Centre Internacional de Mètodes Numèrics en Enginyeria, Universitat Politècnica de Catalunya. LACÀN - Mètodes Numèrics en Ciències Aplicades i Enginyeria

Πηγή: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
International Journal for Numerical Methods in Engineering

Θεματικοί όροι: 74 Mechanics of deformable solids::74P Optimization [Classificació AMS], Proper generalized decomposition, Optimització matemàtica, Matemàtiques i estadística::Matemàtica aplicada a les ciències [Àrees temàtiques de la UPC], 02 engineering and technology, Nonintrusive, 01 natural sciences, Classificació AMS::65 Numerical analysis::65K Mathematical programming, Matemàtiques i estadística::Anàlisi numèrica [Àrees temàtiques de la UPC], Shape optimization, 0203 mechanical engineering, FOS: Mathematics, Mathematics - Numerical Analysis, Strength of materials, 0101 mathematics, Resistència de materials, 65 Numerical analysis::65K Mathematical programming, optimization and variational techniques [Classificació AMS], 49K Necessary conditions and sufficient conditions for optimality [optimization], Matemàtiques i estadística::Anàlisi matemàtica::Càlcul de variacions [Àrees temàtiques de la UPC], Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi matemàtica::Càlcul de variacions, Anàlisi numèrica, Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica, Reduced order model, Classificació AMS::65 Numerical analysis::65K Mathematical programming, optimization and variational techniques, Mathematical optimization, Inertia relief, Classificació AMS::74 Mechanics of deformable solids::74P Optimization, Classificació AMS::49 Calculus of variations and optimal control, optimization::49K Necessary conditions and sufficient conditions for optimality, Numerical Analysis (math.NA), 49 Calculus of variations and optimal control [Classificació AMS], Àrees temàtiques de la UPC::Matemàtiques i estadística::Matemàtica aplicada a les ciències, optimization and variational techniques, Numerical analysis

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Σύνδεσμος πρόσβασης: https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/nme.6702
http://arxiv.org/abs/2012.01961
https://arxiv.org/abs/2012.01961
http://ui.adsabs.harvard.edu/abs/2021IJNME.122.4270C/abstract
https://cronfa.swan.ac.uk/Record/cronfa56712/Download/56712__20585__c6b2a0261fb247eb88e8e9fb1be4489b.pdf
https://upcommons.upc.edu/handle/2117/355952?show=full
https://onlinelibrary.wiley.com/doi/10.1002/nme.6702
https://arxiv.org/pdf/2012.01961
https://cronfa.swan.ac.uk/Record/cronfa56712/Download/56712__20585__c6b2a0261fb247eb88e8e9fb1be4489b.pdf
https://hdl.handle.net/2117/355952
https://doi.org/10.1002/nme.6702
https://arxiv.org/pdf/2012.01961.pdf

Using GPS tracking data to validate route choice in OD trips within dense urban networks

Συγγραφείς: Montero Mercadé, Lídia, Ros Roca, Xavier

Συνεισφορές: Universitat Politècnica de Catalunya. Departament d'Estadística i Investigació Operativa, Universitat Politècnica de Catalunya. Doctorat en Estadística i Investigació Operativa, Universitat Politècnica de Catalunya. IMP - Information Modeling and Processing

Πηγή: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

Θεματικοί όροι: Astrofísica, Anàlisi numèrica, Classificació AMS::85 Astronomy and astrophysics, Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica, Classificació AMS::65 Numerical analysis::65K Mathematical programming, optimization and variational techniques, 85 Astronomy and astrophysics [Classificació AMS], 05 social sciences, Matemàtiques i estadística::Matemàtica aplicada a les ciències [Àrees temàtiques de la UPC], Operations research, Investigació operativa, Numerical analysis--Simulation methods, separated by semicolons, Matemàtiques i estadística::Investigació operativa [Àrees temàtiques de la UPC], Classificació AMS::65 Numerical analysis::65K Mathematical programming, Classificació AMS::90 Operations research, mathematical programming::90B Operations research and management science, Matemàtiques i estadística::Anàlisi numèrica [Àrees temàtiques de la UPC], Àrees temàtiques de la UPC::Matemàtiques i estadística::Matemàtica aplicada a les ciències, Astronomy and astrophysics, 90 Operations research, mathematical programming::90B Operations research and management science [Classificació AMS], 11. Sustainability, 0502 economics and business, Àrees temàtiques de la UPC::Matemàtiques i estadística::Investigació operativa, Type your keywords here, 65 Numerical analysis::65K Mathematical programming, optimization and variational techniques [Classificació AMS], optimization and variational techniques

Περιγραφή αρχείου: application/pdf

Σύνδεσμος πρόσβασης: http://hdl.handle.net/2117/338211
https://hdl.handle.net/2117/338211
http://hdl.handle.net/2117/334604
https://upcommons.upc.edu/handle/2117/334604
https://www.sciencedirect.com/science/article/pii/S2352146520303355
https://upcommons.upc.edu/bitstream/2117/334604/1/EWGT2019_full_paper_35.pdf
https://hdl.handle.net/2117/334604
https://doi.org/10.1016/j.trpro.2020.03.136

An accelerated preconditioned proximal gradient algorithm with a generalized Nesterov momentum for PET image reconstruction

Συγγραφείς: Yizun Lin, Yongxin He, C Ross Schmidtlein, Deren Han

Πηγή: Inverse Problems. 41:045002

Θεματικοί όροι: positron emission tomography, total variation, Optimization and Control (math.OC), Numerical methods for mathematical programming, optimization and variational techniques, Communication, information, 65J22, 65K05, 90C25, FOS: Mathematics, Mathematical programming, accelerated preconditioned proximal gradient algorithm, Mathematics - Numerical Analysis, Numerical Analysis (math.NA), image reconstruction, Mathematics - Optimization and Control

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Σύνδεσμος πρόσβασης: http://arxiv.org/abs/2409.13344
https://zbmath.org/8034684
https://doi.org/10.1088/1361-6420/adbd6a

A step function based recursion method for 0/1 deep neural networks

Συγγραφείς: Hui Zhang, Shenglong Zhou, Geoffrey Ye Li, Naihua Xiu, Yiju Wang

Πηγή: Applied Mathematics and Computation. 488:129129

Θεματικοί όροι: Artificial intelligence, step function, Numerical methods for mathematical programming, optimization and variational techniques, separability, Mathematical programming, 0/1 DNNs, recursion method

Περιγραφή αρχείου: application/xml

Σύνδεσμος πρόσβασης: https://zbmath.org/8030374
https://doi.org/10.1016/j.amc.2024.129129

Randomized block coordinate descent method for linear ill-posed problems

Συγγραφείς: Qinian Jin, Duo Liu

Πηγή: Inverse Problems. 41:035012

Θεματικοί όροι: convergence, Numerical analysis in abstract spaces, Mathematical programming, imaging, 65J20, 65J22, 65J10, 94A08, Numerical Analysis (math.NA), Optimization and Control (math.OC), Numerical methods for mathematical programming, optimization and variational techniques, FOS: Mathematics, linear ill-posed problems, Mathematics - Numerical Analysis, randomized block coordinate descent method, convex regularization term, Mathematics - Optimization and Control

Περιγραφή αρχείου: application/xml

Σύνδεσμος πρόσβασης: http://arxiv.org/abs/2405.13340

Parametric level-sets enhanced to improve reconstruction (PaLEnTIR)

Συγγραφείς: Ege Ozsar, Misha Kilmer, Eric de Sturler, Arvind K Saibaba, Eric Miller

Πηγή: Inverse Problems. 41:025004

Θεματικοί όροι: FOS: Computer and information sciences, reconstruction, Computer Vision and Pattern Recognition (cs.CV), Numerical linear algebra, Image and Video Processing (eess.IV), Computer Science - Computer Vision and Pattern Recognition, Mathematical programming, parametric, piecewise constant, 02 engineering and technology, Numerical Analysis (math.NA), tomography, Electrical Engineering and Systems Science - Image and Video Processing, Level-set, 01 natural sciences, 65F22, 65F99, 65N21, Numerical methods for mathematical programming, optimization and variational techniques, PaLS, 0202 electrical engineering, electronic engineering, information engineering, FOS: Mathematics, FOS: Electrical engineering, electronic engineering, information engineering, level-set, Mathematics - Numerical Analysis, 0101 mathematics, Parametric

Περιγραφή αρχείου: application/xml; application/pdf

Σύνδεσμος πρόσβασης: http://arxiv.org/abs/2204.09815