Výsledky vyhľadávania - inverse ((problem OR problems) OR problems) iterative minimization algorithm numerical

The Inverse Problem of Positive Autoconvolution Autor Finesso, Lorenzo, Spreij, Peter

“… After proving the existence of an optimal approximation, we derive an iterative descent algorithm of the alternating minimization type to find a minimizer…”
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On the Convergence of Learning-Based Iterative Methods for Nonconvex Inverse Problems Autor Liu, Risheng, Cheng, Shichao, He, Yi, Fan, Xin, Lin, Zhouchen, Luo, Zhongxuan

“…Numerous tasks at the core of statistics, learning and vision areas are specific cases of ill-posed inverse problems…”
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Numerical resolution of an electromagnetic inverse medium problem at fixed frequency Autor de Buhan, M., Darbas, M.

“… We express the inverse problem as the minimization of a cost function representing the difference between the measured and predicted fields…”
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New self-adaptive step size algorithms for solving split variational inclusion problems and its applications Autor Tang, Yan, Gibali, Aviv

“…In this paper, we study a special instance of the split inverse problem (SIP), which is the split variational inclusion problem (SVIP…”
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A majorization–minimization-based method for nonconvex inverse rig problems in facial animation: algorithm derivation Autor Racković, Stevo, Soares, Cláudia, Jakovetić, Dušan, Desnica, Zoranka

“… A second-order blendshape approximation leads to higher fidelity facial animation but generates a non-linear least squares optimization problem with high dimensionality…”
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Tradeoffs Between Convergence Speed and Reconstruction Accuracy in Inverse Problems Autor Giryes, Raja, Eldar, Yonina C., Bronstein, Alex M., Sapiro, Guillermo

“…Solving inverse problems with iterative algorithms is popular, especially for large data…”
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Inverse source problem for a diffusion equation involving the fractional spectral Laplacian Autor BenSalah, Mohamed, Hassine, Maatoug

“…‐posed inverse problem is formulated as a minimization one. The existence, uniqueness, and stability of the solution are discussed…”
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Minimization of Non-smooth, Non-convex Functionals by Iterative Thresholding Autor Bredies, Kristian, Lorenz, Dirk A., Reiterer, Stefan

“…Convergence analysis is carried out for a forward-backward splitting/generalized gradient projection method for the minimization of a special class of non-smooth and genuinely non-convex minimization…”
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Shrinkage-Thresholding Enhanced Born Iterative Method for Solving 2D Inverse Electromagnetic Scattering Problem Autor Desmal, Abdulla, Bagci, Hakan

“…) algorithms within the Born iterative method (BIM) is proposed for solving the two-dimensional inverse electromagnetic scattering problem…”
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An enhanced sparse regularization method for impact force identification Autor Qiao, Baijie, Liu, Junjiang, Liu, Jinxin, Yang, Zhibo, Chen, Xuefeng

“…•A weighted l1-norm convex optimization model for impact force identification is developed.•Iteratively reweighted l1-norm minimization algorithm is proposed for solving impact force identification…”
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Halpern-type iterative process for solving split common fixed point and monotone variational inclusion problem between Banach spaces Autor Taiwo, A., Alakoya, T. O., Mewomo, O. T.

“… and fixed point problem and illustrate the efficiency and performance of our algorithm with a numerical example…”
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Derivative-free superiorization: principle and algorithm Autor Censor, Yair, Garduño, Edgar, Helou, Elias S., Herman, Gabor T.

“…The superiorization methodology is intended to work with input data of constrained minimization problems, that is, a target function and a set of constraints…”
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Superiorization and bounded perturbation resilience of a gradient projection algorithm solving the convex minimization problem Autor Ertürk, Müzeyyen, Salkım, Ahmet

“… We obtain that the perturbed version of this gradient projection algorithm converges weakly to a solution of the convex minimization problem just like itself…”
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Iterative reconstruction algorithm for the inverse problems in electrical capacitance tomography Autor Guo, Ge, Tong, Guowei, Lu, Lian, Liu, Shi

“… The imaging algorithms play crucial roles in practical ECT image reconstruction problems. Different from previous numerical methods, this study proposes a novel cost…”
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A Self-Adaptive Algorithm for the Common Solution of the Split Minimization Problem and the Fixed Point Problem Autor Kaewyong, Nattakarn, Sitthithakerngkiet, Kanokwan

“…In this paper, a new self-adaptive step size algorithm to approximate the solution of the split minimization problem and the fixed point problem of nonexpansive mappings was constructed…”
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The Equivalence of Half-Quadratic Minimization and the Gradient Linearization Iteration Autor Nikolova, M., Chan, R.H.

“…) regularization term. Mainly because of the latter term, the calculation of the solution is slow and cumbersome. Half-quadratic (HQ) minimization (multiplicative form…”
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Detection of Simulated Brain Strokes Using Microwave Tomography Autor Coli, Vanna Lisa, Tournier, Pierre-Henri, Dolean, Victorita, Kanfoud, Ibtissam El, Pichot, Christian, Migliaccio, Claire, Blanc-Feraud, Laure

“…Brain strokes are one of the leading causes of disability and mortality in adults in developed countries. Ischemic stroke (85% of total cases) and hemorrhagic…”
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A viscosity iterative technique for split variational inclusion and fixed point problems between a Hilbert space and a Banach space Autor Izuchukwu, Chinedu, Okeke, Chibueze Christian, Isiogugu, Felicia Obiageli

“…The main purpose of this paper is to introduce a viscosity-type iterative algorithm for approximating a common solution of a split variational inclusion problem and a fixed point problem…”
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Iterative Thresholding Meets Free-Discontinuity Problems Autor Fornasier, Massimo, Ward, Rachel

“… If we discretize such situations for numerical purposes, the free-discontinuity problem in the discrete setting can be re-formulated as that of finding a derivative vector with small components…”
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Generalized cross validation for ℓp-ℓq minimization Autor Buccini, Alessandro, Reichel, Lothar

“…Discrete ill-posed inverse problems arise in various areas of science and engineering…”
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