Search Results - Spectral methods vectorization algorithms domain decomposition*

Effective numerical algorithms for the solution of algebraic systems arising in spectral methods

Authors: C. CARLENZOLI GERVASIO, Paola

Source: Applied Numerical Mathematics. 10:87-113

Subject Terms: Iterative numerical methods for linear systems, Multigrid methods, domain decomposition for boundary value problems involving PDEs, IBM 3090/200S VF, CGS method, Richarson method, comparisons, CRAY Y-MP 8/432, iteration, unsymmetric spectral matrices, 01 natural sciences, domain decomposition, NCUBE2, Boundary value problems for second-order elliptic equations, Numerical algorithms for specific classes of architectures, preconditioning, BI-CGSTAB method, vectorization, GMRES method, Spectral, collocation and related methods for boundary value problems involving PDEs, Spectral methods vectorization algorithms domain decomposition, 0101 mathematics, CRAY X/MP-EA, spectral collocation method

File Description: application/xml

Access URL: https://zbmath.org/89534
https://doi.org/10.1016/0168-9274(92)90033-a
https://www.sciencedirect.com/science/article/pii/016892749290033A
https://hdl.handle.net/11379/4225
https://doi.org/10.1016/0168-9274(92)90033-A

Iterative Preconditioned Methods in Krylov Spaces: Trends of the 21st Century.

Authors: Il'in, V. P.^1,2 (AUTHOR) ilin@sscc.ru

Source: Computational Mathematics & Mathematical Physics. Nov2021, Vol. 61 Issue 11, p1750-1775. 26p.

Subject Terms: *DOMAIN decomposition methods, *TWENTY-first century, *MATRIX inversion, *GRAPHICS processing units, *PARALLEL algorithms, *FLUID dynamics, *DEGREES of freedom

Fast and effective single-scan dual-energy cone-beam CT reconstruction and decomposition denoising based on dual-energy vectorization.

Authors: Jiang X Fang C Hu P et al.

Source: Medical physics [Med Phys] 2021 Sep; Vol. 48 (9), pp. 4843-4856. Date of Electronic Publication: 2021 Aug 11.

Publication Type: Journal Article

Journal Info: Publisher: John Wiley and Sons, Inc Country of Publication: United States NLM ID: 0425746 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 2473-4209 (Electronic) Linking ISSN: 00942405 NLM ISO Abbreviation: Med Phys Subsets: MEDLINE

MeSH Terms: Algorithms* , Head*/diagnostic imaging, Cone-Beam Computed Tomography ; Humans ; Image Processing, Computer-Assisted ; Phantoms, Imaging ; Radiography

Fast global spectral methods for three-dimensional partial differential equations.

Authors: Strössner, Christoph Kressner, Daniel

Source: IMA Journal of Numerical Analysis; May2023, Vol. 43 Issue 3, p1519-1542, 24p

Subject Terms: LINEAR differential equations, KRONECKER products, LINEAR equations, LINEAR systems, SPECTRAL element method

Fourier–Gegenbauer Integral Galerkin Method for Solving the Advection–Diffusion Equation with Periodic Boundary Conditions.

Authors: Elgindy, Kareem T.

Source: Computation; Sep2025, Vol. 13 Issue 9, p219, 37p

Subject Terms: ADVECTION-diffusion equations, GALERKIN methods, ITERATIVE methods (Mathematics), BOUNDARY value problems, MATHEMATICAL optimization, SIMULATION methods & models, INTEGRAL equations

MultiScale spectral–spatial convolutional transformer for hyperspectral image classification.

Authors: Gong, Zhiqiang Zhou, Xian Yao, Wen

Source: IET Image Processing (Wiley-Blackwell); 11/13/2024, Vol. 18 Issue 13, p4328-4340, 13p

Subject Terms: IMAGE recognition (Computer vision), TRANSFORMER models, FEATURE extraction, CONVOLUTIONAL neural networks, PIXELS, MULTISPECTRAL imaging, SPECTRAL imaging

Likelihood-based bilateral filters for pre-estimated basis sinograms using photon-counting CT.

Authors: Lee O; Department of Robotics and Mechatronics Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, Republic of Korea.

Source: Medical physics [Med Phys] 2023 May; Vol. 50 (5), pp. 2733-2758. Date of Electronic Publication: 2023 Feb 05.

Publication Type: Journal Article

Journal Info: Publisher: John Wiley and Sons, Inc Country of Publication: United States NLM ID: 0425746 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 2473-4209 (Electronic) Linking ISSN: 00942405 NLM ISO Abbreviation: Med Phys Subsets: MEDLINE

MeSH Terms: Image Processing, Computer-Assisted*/methods , Algorithms*, Likelihood Functions ; Tomography, X-Ray Computed/methods ; Thorax ; Phantoms, Imaging

Regularizing Hyperspectral and Multispectral Image Fusion by CNN Denoiser.

Authors: Dian, Renwei Li, Shutao Kang, Xudong

Source: IEEE Transactions on Neural Networks & Learning Systems; Mar2021, Vol. 32 Issue 3, p1124-1135, 12p

Subject Terms: IMAGE fusion, MULTISPECTRAL imaging, IMAGE denoising, CONVOLUTIONAL neural networks, SINGULAR value decomposition, HIGH resolution imaging

Hyperspectral image, video compression using sparse tucker tensor decomposition.

Authors: Das, Samiran

Source: IET Image Processing (Wiley-Blackwell); Mar2021, Vol. 15 Issue 4, p964-973, 10p

No Reproducibility, No Progress: Rethinking CT Benchmarking.

Authors: Polevoy, Dmitry Kazimirov, Danil Gilmanov, Marat et al.

Source: Journal of Imaging; Oct2025, Vol. 11 Issue 10, p344, 36p

Efficient Fourier base fitting on masked or incomplete structured data.

Authors: Karimi, Fariba Neufeld, Esra Fallahi, Arya et al.

Source: Frontiers in Neuroimaging; 2025, p1-12, 12p

Reconstructing brain causal dynamics for subject and task fingerprints using fMRI time-series data.

Authors: Song, Dachuan Shen, Li Duong-Tran, Duy et al.

Source: Health Information Science & Systems; 10/28/2025, Vol. 13 Issue 1, p1-17, 17p

A Low-Rank Tensor Decomposition Model With Factors Prior and Total Variation for Impulsive Noise Removal.

Authors: Tian, Xin Xie, Kun Zhang, Hanling

Source: IEEE Transactions on Image Processing; 2022, Vol. 31, p4776-4789, 14p

A Low-Rank Tensor Completion Method via Strassen--Ottaviani Flattening.

Authors: Tiantian He Shenglong Hu Zheng-Hai Huang

Source: SIAM Journal on Imaging Sciences; 2024, Vol. 17 Issue 4, p2242-2276, 35p

Epileptic Seizure Detection Based on Variational Mode Decomposition and Deep Forest Using EEG Signals.

Authors: Liu, Xiang Wang, Juan Shang, Junliang et al.

Source: Brain Sciences (2076-3425); Oct2022, Vol. 12 Issue 10, p1275-N.PAG, 19p

Subject Terms: EPILEPSY, ELECTROENCEPHALOGRAPHY, SIGNAL classification, ADAPTIVE filters, COVARIANCE matrices

Fast Poisson solvers for spectral methods.

Authors: Fortunato, Daniel Townsend, Alex

Source: IMA Journal of Numerical Analysis; Jul2020, Vol. 40 Issue 3, p1994-2018, 25p

Subject Terms: ELLIPTIC differential equations, POISSON'S equation, EIGENVECTORS, FINITE differences, DEGREES of freedom, FINITE element method

Spectral clustering based on high‐frequency texture components for face datasets.

Authors: Liang, Zexiao Guo, Shaozhi Liu, Dakang et al.

Source: IET Image Processing (Wiley-Blackwell); Aug2021, Vol. 15 Issue 10, p2240-2246, 7p

Subject Terms: COGNITION, SPECTRAL imaging, FACE perception, STATISTICAL correlation, IMAGE processing

Adaptive Transition Probability Matrix Learning for Multiview Spectral Clustering.

Authors: Chen, Yongyong Xiao, Xiaolin Hua, Zhongyun et al.

Source: IEEE Transactions on Neural Networks & Learning Systems; Sep2022, Vol. 33 Issue 9, p4712-4726, 15p

Subject Terms: PRINCIPAL components analysis, PROBABILITY theory, MATRICES (Mathematics), SPARSE matrices

Multiplex Transformed Tensor Decomposition for Multidimensional Image Recovery.

Authors: Feng, Lanlan Zhu, Ce Long, Zhen et al.

Source: IEEE Transactions on Image Processing; 2023, Vol. 32, p3397-3412, 16p

Blind Decomposition of Multispectral Document Images Using Orthogonal Nonnegative Matrix Factorization.

Authors: Rahiche, Abderrahmane Cheriet, Mohamed

Source: IEEE Transactions on Image Processing; 2021, Vol. 30, p5997-6012, 16p