Search Results - "Iterative thresholding algorithm"

On convergence of iterative thresholding algorithms to approximate sparse solution for composite nonconvex optimization

Authors: Yaohua Hu Xinlin Hu Xiaoqi Yang et al.

Contributors: Yaohua Hu Xinlin Hu Xiaoqi Yang et al.

Source: Mathematical Programming. 211:181-206

Subject Terms: Global solution, nonconvex sparse optimization, 0211 other engineering and technologies, Iterative thresholding algorithm, 02 engineering and technology, sparse solution, Nonconvex programming, global optimization, 01 natural sciences, iterative thresholding algorithm, Numerical mathematical programming methods, Proximal gradient algorithm, global solution, proximal gradient algorithm, Nonconvex sparse optimization, 0101 mathematics, Sparse solution

File Description: application/xml

Access URL: https://zbmath.org/8035684
https://doi.org/10.1007/s10107-024-02068-1

Itao: A New Iterative Thresholding Algorithm Based Optimizer for Deep Neural Networks

Authors: Mohamed Merrouchi Khalid Atifi Mustapha Skittou et al.

Source: IEEE Access, Vol 10, Pp 120880-120890 (2022)

Subject Terms: 0202 electrical engineering, electronic engineering, information engineering, deep learning, Iterative thresholding algorithm based optimizer (Itao), optimizer algorithm, Electrical engineering. Electronics. Nuclear engineering, 02 engineering and technology, neural networks, TK1-9971

Access URL: https://doaj.org/article/cdd95b48f2b64281af39929d0f4ec7b8

Compressive sensed video recovery via iterative thresholding with random transforms

Authors: Belyaev, Evgeny Codreanu, Marian Juntti, Markku et al.

Source: IET Image Processing. 14(6):1187-1200

Subject Terms: compressed sensing, filtering theory, image reconstruction, image denoising, medical image processing, transforms, discrete wavelet transforms, iterative methods, video signal processing, discrete cosine transforms, compressive, video recovery, random transforms, iterative thresholding algorithm, fixed sparsifying, iteration, different transforms, resulting pixel value, simple example, block-based 2D discrete cosine, random selection, fixed block size, random shift, random 2D discrete wavelet, video block-matching, frame residual computation algorithm

File Description: print

Access URL: https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-165924

Approximate Message Passing Algorithm for Nonconvex Regularization

Authors: Hui Zhang Hai Zhang Yong Liang et al.

Source: IEEE Access, Vol 7, Pp 9080-9090 (2019)

Subject Terms: iterative thresholding algorithm, Approximate message passing algorithm, nonconvex regularization, sparsity, 0202 electrical engineering, electronic engineering, information engineering, Electrical engineering. Electronics. Nuclear engineering, 02 engineering and technology, 0101 mathematics, 01 natural sciences, variable selection, TK1-9971

Access URL: https://ieeexplore.ieee.org/ielx7/6287639/8600701/08603833.pdf
https://doaj.org/article/7130b68aada8489e911af6c19b12c283
https://dblp.uni-trier.de/db/journals/access/access7.html#ZhangZLYR19
https://ieeexplore.ieee.org/document/8603833/

Group sparse optimization via ℓp,q regularization

Authors: Hu, Y Li, C Meng, K et al.

Contributors: Hu, Y Li, C Meng, K et al.

Subject Terms: Group sparse optimization, Lower-order regularization, Nonconvex optimization, Restricted eigenvalue condition, Proximal gradient method, Iterative thresholding algorithm, Gene regulation network

Relation: http://hdl.handle.net/10397/93329; 52; 18; 6745964

Availability: http://hdl.handle.net/10397/93329

Sparse signals recovered by non-convex penalty in quasi-linear systems

Authors: Angang Cui Haiyang Li Meng Wen et al.

Source: Journal of Inequalities and Applications, Vol 2018, Iss 1, Pp 1-11 (2018)

Subject Terms: Compressed sensing, Quasi-linear, Non-convex fraction function, Iterative thresholding algorithm, Mathematics, QA1-939

File Description: electronic resource

Relation: http://link.springer.com/article/10.1186/s13660-018-1652-8; https://doaj.org/toc/1029-242X

Access URL: https://doaj.org/article/5911eaedd3634cf7a8031c462c9ade6b

Numerical reconstruction of the spatial component in the source term of a time-fractional diffusion equation

Authors: Daijun Jiang Yikan Liu Dongling Wang

Source: Advances in Computational Mathematics. 46

Subject Terms: Finite element method, Time-fractional diffusion equation, Inverse source problem, FOS: Mathematics, Iterative thresholding algorithm, Mathematics - Numerical Analysis, Numerical Analysis (math.NA), 0101 mathematics, 01 natural sciences, 35R11, 65M32, 41A35

Access URL: http://arxiv.org/pdf/1812.04235
http://arxiv.org/abs/1812.04235
https://dblp.uni-trier.de/db/journals/adcm/adcm46.html#JiangLW20
https://jglobal.jst.go.jp/detail?JGLOBAL_ID=202002211851577071
https://link.springer.com/article/10.1007/s10444-020-09754-6
https://eprints.lib.hokudai.ac.jp/dspace/handle/2115/78716
https://arxiv.org/abs/1812.04235
http://arxiv.org/pdf/1812.04235.pdf
https://ui.adsabs.harvard.edu/abs/2018arXiv181204235J/abstract

CS-SAR Imaging Method Based on Inverse Omega-K Algorithm

Authors: Hu Jingqiu Liu Falin Zhou Chongbin et al.

Source: Leida xuebao, Vol 6, Iss 1, Pp 25-33 (2017)

Subject Terms: Synthetic Aperture Radar (SAR), Compressed Sensing (CS), Omega-K Algorithm (OKA), Iterative thresholding algorithm, Electricity and magnetism, QC501-766

File Description: electronic resource

Relation: http://radars.ie.ac.cn/CN/html/20170104.htm; https://doaj.org/toc/2095-283X

Access URL: https://doaj.org/article/c5d3f70ff1ab4818b2fbd5c6ce34e42d

Compressed Sensing Imaging Algorithm for High-squint SAR Based on NCS Operator

Authors: Gu Fufei Zhang Qun Yang Qiu et al.

Source: Leida xuebao, Vol 5, Iss 1, Pp 16-24 (2016)

Subject Terms: Synthetic Aperture Radar (SAR), High squint imaging, Compressed Sensing (CS), Nonlinear Chirp-Scaling (NCS) operator, Iterative Thresholding Algorithm (ITA), Electricity and magnetism, QC501-766

File Description: electronic resource

Relation: http://radars.ie.ac.cn/CN/html/R15035.htm; https://doaj.org/toc/2095-283X

Access URL: https://doaj.org/article/d5babb6f136540a3ae27b473fc92f05d

SPARSE DECOMPOSITION OF AUDIO SIGNALS USING A PERCEPTUAL MEASURE OF DISTORTION. APPLICATION TO LOSSY AUDIO CODING.

Authors: Toumi, Ichrak Derrien, Olivier Laboratoire de Mécanique et d'Acoustique Marseille (LMA) et al.

Contributors: Toumi, Ichrak Derrien, Olivier Laboratoire de Mécanique et d'Acoustique Marseille (LMA) et al.

Source: Proceedings of the 18th International Conference on Digital Audio Effects ; 18th International Conference on Digital Audio Effects ; https://hal.science/hal-01240863 ; 18th International Conference on Digital Audio Effects, Norwegian University of Science and Technology, Nov 2015, Trondheim, Norway

Subject Terms: Perceptual model, Iterative thresholding algorithm, Sparse approximation, Index Terms– Audio coding, [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing

Subject Geographic: Trondheim, Norway

Availability: https://hal.science/hal-01240863
https://hal.science/hal-01240863v1/document
https://hal.science/hal-01240863v1/file/Toumi_Derrien_DAFx2015.pdf

A comparison of iterative thresholding algorithms for the MEG inverse problem

Authors: BRUNI, VITTORIA PITOLLI, Francesca C. Pocci

Subject Terms: Magnetoencephalography, Sparsity constraint, Iterative thresholding algorithm

File Description: application/pdf

Access URL: https://hdl.handle.net/11573/781591

Sparse Solution of Underdetermined Linear Equations via Adaptively Iterative Thresholding

Authors: Jinshan Zeng Shaobo Lin Zongben Xu et al.

Contributors: Jinshan Zeng Shaobo Lin Zongben Xu et al.

Source: http://arxiv.org/pdf/1310.3954.pdf.

Subject Terms: Iterative thresholding algorithm, global convergence, underdetermined linear equations, sparse

File Description: application/pdf

Relation: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.739.9954; http://arxiv.org/pdf/1310.3954.pdf

Availability: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.739.9954
http://arxiv.org/pdf/1310.3954.pdf

An Iterative Algorithm with Joint Sparsity Constraints for Magnetic Tomography

Authors: PITOLLI, Francesca Gabriella Bretti

Source: Lecture Notes in Computer Science ISBN: 9783642116193
Lecture notes in computer science 5862 (2010): 316–328.
info:cnr-pdr/source/autori:Bretti G., Pitolli F./titolo:An iterative algorithm with joint sparsity constraints for magnetic tomography/doi:/rivista:Lecture notes in computer science/anno:2010/pagina_da:316/pagina_a:328/intervallo_pagine:316–328/volume:5862

Subject Terms: inverse problem, iterative thresholding algorithm, joint sparsity, magnetic tomography, Sparsity constraint, Multiscale basis, Inverse problem, Magnetic tomography, 0101 mathematics, 01 natural sciences, Iterative thresholding

Access URL: https://publications.cnr.it/doc/8398
http://www.cnr.it/prodotto/i/8398
https://rd.springer.com/chapter/10.1007/978-3-642-11620-9_21
https://core.ac.uk/display/54312207
https://link.springer.com/10.1007/978-3-642-11620-9_21
http://www.iac.rm.cnr.it/~bretti/BP_mmcs08.pdf
https://link.springer.com/chapter/10.1007/978-3-642-11620-9_21
http://www.dmmm.uniroma1.it/pubblicazioni/doc/preprints/09-02-bre-pit.pdf
https://hdl.handle.net/20.500.14243/450725
http://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=1&SID=P2NPFoEf4kGiedcnm7O&page=1&doc=1
https://doi.org/10.1007/978-3-642-11620-9_21
https://hdl.handle.net/11573/153085

Electric current density imaging via an accelerated iterative algorithm with joint sparsity constraints

Authors: BRETTI, GABRIELLA F. FORNASIER PITOLLI, Francesca

Source: pp.1–7, 2009

Subject Terms: magnetoencephalography, iterative thresholding algorithm, Magnetic tomography, Source localization, Joint sparsity

Access URL: https://hal.inria.fr/inria-00369432
https://publications.cnr.it/doc/430877
http://www.cnr.it/prodotto/i/430877
https://hdl.handle.net/11573/366881
http://hal.inria.fr/SPARS09/en

Convergence of ℓ2/3 Regularization for Sparse Signal Recovery

Authors: Lu Liu Di-Rong Chen

Source: Asia-Pacific Journal of Operational Research. 32:1550023

Subject Terms: Compressed sensing, ℓ2/3 regularization, two thirds thresholding operator, fixed point iterative thresholding algorithm, phase diagram, 4. Education, 0202 electrical engineering, electronic engineering, information engineering, 02 engineering and technology, 0101 mathematics, 01 natural sciences, 3. Good health

Access URL: https://ideas.repec.org/a/wsi/apjorx/v32y2015i04ns0217595915500232.html
https://www.worldscientific.com/doi/abs/10.1142/S0217595915500232
https://dblp.uni-trier.de/db/journals/apjor/apjor32.html#LiuC15
http://www.worldscinet.com/cgi-bin/details.cgi?type=html&id=pii:S0217595915500232
http://www.worldscinet.com/cgi-bin/details.cgi?type=pdf&id=pii:S0217595915500232

Linearly constrained nonsmooth and nonconvex minimization

Authors: Artina, Marco Fornasier, Massimo Solombrino, Francesco

Contributors: Artina, Marco Fornasier, Massimo Solombrino, Francesco

Subject Terms: Convergence analysi, Free-discontinuity problem, Iterative thresholding algorithm, Linearly constrained nonconvex and nonsmooth optimization, Variational models in continuum mechanic, Theoretical Computer Science, Software

Relation: info:eu-repo/semantics/altIdentifier/wos/WOS:000325094000023; volume:23; firstpage:1904; lastpage:1937; numberofpages:34; journal:SIAM JOURNAL ON OPTIMIZATION; https://hdl.handle.net/11587/547688

Availability: https://hdl.handle.net/11587/547688
https://doi.org/10.1137/120869079
http://epubs.siam.org/doi/pdf/10.1137/120869079

Iterative mix thresholding algorithm with continuation technique for mix sparse optimization and application

Authors: Hu, Y Lu, J Yang, X et al.

Contributors: Hu, Y Lu, J Yang, X et al.

Subject Terms: Continuation technique, Convergence theory, Iterative thresholding algorithm, Mix sparse optimization, ℓ₀ Regularization

Relation: https://hdl.handle.net/10397/113894; 511; 534; 91; a3809; 51182

Availability: https://hdl.handle.net/10397/113894
https://doi.org/10.1007/s10898-024-01441-w

ConvCoroNet: a deep convolutional neural network optimized with iterative thresholding algorithm for Covid-19 detection using chest X-ray images.

Authors: Merrouchi M Benyoussef Y Skittou M et al.

Source: Journal of biomolecular structure & dynamics [J Biomol Struct Dyn] 2024 Jul; Vol. 42 (11), pp. 5699-5712. Date of Electronic Publication: 2023 Jun 24.

Publication Type: Journal Article

Journal Info: Publisher: Taylor & Francis Country of Publication: England NLM ID: 8404176 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1538-0254 (Electronic) Linking ISSN: 07391102 NLM ISO Abbreviation: J Biomol Struct Dyn Subsets: MEDLINE

MeSH Terms: COVID-19*/diagnostic imaging , COVID-19*/diagnosis , COVID-19*/virology , Neural Networks, Computer* , Algorithms* , SARS-CoV-2*, Humans ; Radiography, Thoracic/methods ; Sensitivity and Specificity

Numerical reconstruction of the spatial component in the source term of a time-fractional diffusion equation.

Authors: Liu, Yikan Wang, Dongling Jiang, Daijun

Index Terms: Time-fractional diffusion equation, Inverse source problem, Finite element method, Iterative thresholding algorithm, 418, Journal Article., NA.

URL: http://hdl.handle.net/2115/78716
https://doi.org/10.1007/s10444-020-09754-6
https://arxiv.org/abs/1812.04235

Numerical reconstruction of the spatial component in the source term of a time-fractional diffusion equation

Authors: Jiang, Daijun Liu, Yikan Wang, Dongling

Index Terms: Time-fractional diffusion equation, Inverse source problem, Finite element method, Iterative thresholding algorithm, 418, article (author version)

URL: http://hdl.handle.net/2115/78716