Výsledky vyhledávání - "block-iterative algorithms"

Perturbation-resilient block-iterative projection methods with application to image reconstruction from projections Autor Davidi, R., Herman, G.T., Censor, Y.

“…A block‐iterative projection algorithm for solving the consistent convex feasibility problem in a finite‐dimensional Euclidean space that is resilient to…”
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Accelerated perturbation-resilient block-iterative projection methods with application to image reconstruction Autor Nikazad, T, Davidi, R, Herman, G T

“…We study the convergence of a class of accelerated perturbation-resilient block-iterative projection methods for solving systems of linear equations. We prove…”
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A modular string averaging procedure for solving the common fixed point problem for quasi-nonexpansive mappings in Hilbert space Autor Reich, Simeon, Zalas, Rafał

“…In this paper we consider the common fixed point problem for a finite family of quasi-nonexpansive mappings U i : ℋ → ℋ , where i ∈ I := {1,…, M }, M ≥1, and ℋ…”
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Block-Iterative Algorithms with Diagonally Scaled Oblique Projections for the Linear Feasibility Problem Autor Censor, Yair, Elfving, Tommy

“…We formulate a block-iterative algorithmic scheme for the solution of systems of linear inequalities and/or equations and analyze its convergence. This study…”
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Bounds on the largest singular value of a matrix and the convergence of simultaneous and block-iterative algorithms for sparse linear systems Autor Byrne, Charles

“…We obtain the following upper bounds for the eigenvalues of the matrix A†A. For any a in the interval [0, 2] let and ca and ra the maxima of the caj and rai,…”
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Choosing parameters in block-iterative or ordered subset reconstruction algorithms Autor Byrne, C.

“…Viewed abstractly, all the algorithms considered here are designed to provide a nonnegative solution x to the system of linear equations y=Px, where y is a…”
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Block-Iterative Algorithms with Underrelaxed Bregman Projections Autor Censor, Yair, Herman, Gabor T.

“…The notion of relaxation is well understood for orthogonal projections onto convex sets. For general Bregman projections it was considered only for…”
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Three-dimensional ionospheric tomography via band-limited constrained iterative cross-entropy minimization Autor Cornely, Pierre-Richard J., Kuklinski, Walter S.

“…The problem of reconstructing ionospheric electron density from ground‐based receiver to satellite total electron content (TEC) measurements is formulated as…”
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Choosing parameters in block-iterative or ordered-subset reconstruction algorithms Autor Byrne, C.

“…Viewed abstractly, all the algorithms considered here are designed to provide a nonnegative solution x to the system of linear equations y=Px, where y is a…”
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Block-Iterative Algorithms for Non-negative Matrix Approximation Autor Sra, S.

“…In this paper we present new algorithms for non-negative matrix approximation (NMA), commonly known as the NMF problem. Our methods improve upon the well-known…”
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Space‐time finite element procedure with block‐iterative algorithm for dam‐reservoir‐soil interaction during earthquake loading Autor Sharma, Vikas, Fujisawa, Kazunori, Murakami, Akira

“…Summary This paper presents a time‐discontinuous Galerkin space‐time finite element method for the seismic analysis of dam‐reservoir‐soil system. For the…”
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Asynchronous block-iterative primal-dual decomposition methods for monotone inclusions Autor Combettes, Patrick L., Eckstein, Jonathan

“…We propose new primal-dual decomposition algorithms for solving systems of inclusions involving sums of linearly composed maximally monotone operators. The…”
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A decomposition method for solving multicommodity network equilibria Autor Bùi, Minh N.

“…We consider the numerical aspect of the multicommodity network equilibrium problem proposed by Rockafellar in 1995. Our method relies on the flexible monotone…”
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An Important Application of the Implicit HDG Time-Domain Method Based on Block GMRES for Multiple Right-Hand Sides Autor Li, Xing, Xu, Li, Li, Liang, Wang, Hao, Yin, Jun-Hui, Li, Bin

“…To solve the linear systems with multiple right-hand sides (RHS) arising from the implicit hybridizable discontinuous Galerkin time-domain method for…”
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A Variational Inequality Model for Learning Neural Networks Autor Combettes, Patrick L., Pesquet, Jean-Christophe, Repetti, Audrey

“…Neural networks have become ubiquitous tools for solving signal and image processing problems, and they often outperform standard approaches. Nevertheless,…”
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Convergence studies on block iterative algorithms for image reconstruction Autor Guo, Xue-Ping

“…The sequential block-iterative scheme based on Landweber’s method is a general iterative one for image reconstruction. In this paper, we give the finite…”
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Modified block iterative algorithm for Quasi- ϕ-asymptotically nonexpansive mappings and equilibrium problem in banach spaces Autor Chang, Shih-sen, Chan, Chi Kin, Joseph Lee, H.W.

“…The purpose of this paper is to propose a modified block iterative algorithm for find a common element of the set of common fixed points of an infinite family…”
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The convergence of the block cyclic projection with an overrelaxation parameter for compressed sensing based tomography Autor Arroyo, Fangjun, Arroyo, Edward, Li, Xiezhang, Zhu, Jiehua

“…The convergence of the block cyclic projection for compressed sensing based tomography (BCPCS) algorithm had been proven recently in the case of…”
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A modified hybrid projection method for solving generalized mixed equilibrium problems and fixed point problems in Banach spaces Autor Saewan, Siwaporn, Kumam, Poom

“…In this paper, we introduce a modified new hybrid projection method for finding the set of solutions of the generalized mixed equilibrium problems and the…”
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Convergence theorems for mixed equilibrium problems, variational inequality problem and uniformly quasi- ϕ-asymptotically nonexpansive mappings Autor Saewan, Siwaporn, Kumam, Poom

“…We introduce a modified block hybrid projection algorithm for finding a common element of the set of common fixed points of an infinite family of closed and…”
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