Influence of the Tikhonov Regularization Parameter on the Accuracy of the Inverse Problem in Electrocardiography [PDF]
Sensors, 2023 The electrocardiogram (ECG) is the standard method in clinical practice to non-invasively analyze the electrical activity of the heart, from electrodes placed on the body’s surface.
Tiantian Wang +3 more
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Data-Driven Regularization Parameter Selection in Dynamic MRI [PDF]
Journal of Imaging, 2021 In dynamic MRI, sufficient temporal resolution can often only be obtained using imaging protocols which produce undersampled data for each image in the time series. This has led to the popularity of compressed sensing (CS) based reconstructions.
Matti Hanhela +5 more
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Considering New Regularization Parameter-Choice Techniques for the Tikhonov Method to Improve the Accuracy of Electrocardiographic Imaging [PDF]
Frontiers in Physiology, 2019 The electrocardiographic imaging (ECGI) inverse problem highly relies on adding constraints, a process called regularization, as the problem is ill-posed.
Judit Chamorro-Servent +9 more
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Optimization of the regularization parameter in the Dual Annealing method used for the reconstruction of energy spectrum of electron beam generated by the AQURE mobile accelerator [PDF]
Zeitschrift für Medizinische PhysikIntroduction: The shape of the energy spectrum is an essential component of any electron beam Monte Carlo model. Due to specialized equipment and the long measurement time for the direct methods for determining the energy spectrum, attractive ...
Adam Ryczkowski +4 more
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Selection of regularization parameter for l1-regularized damage detection
Journal of Sound and Vibration, 2018 Abstract The l1 regularization technique has been developed for structural health monitoring and damage detection through employing the sparsity condition of structural damage. The regularization parameter, which controls the trade-off between data fidelity and solution size of the regularization problem, exerts a crucial effect on the solution ...
Yong Xia, Xiaoqing Zhou, Yuequan Bao
exaly +3 more sources
ModellingThe modeling of many problems of practical interest leads to nonlinear ill-posed equations (for example, the parameter identification problem (see the Numerical section)).
Santhosh George +4 more
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Regular Parameter Elements and Regular Local Hyperrings [PDF]
Mathematics, 2021 Inspired by the concept of regular local rings in classical algebra, in this article we initiate the study of the regular parameter elements in a commutative local Noetherian hyperring. These elements provide a deep connection between the dimension of the hyperring and its primary hyperideals.
Hashem Bordbar, Irina Cristea
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SIMRES-TV: NOISE AND RESIDUAL SIMILARITY FOR PARAMETER ESTIMATION IN TOTAL VARIATION [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021 Image restoration with regularization models is very popular in the image processing literature. Total variation (TV) is one of the important edge preserving regularization models used, however, to obtain optimal restoration results the regularization ...
V. B. S. Prasath +6 more
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Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2021 This paper presents the results of application of the approach, previously not used at the Research Station of the Russian Academy of Sciences in Bishkek, to determine the quasi-optimal value of the regularization parameter for the inversion of the ...
Забинякова О.Б.
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Updating the regularization parameter in the adaptive cubic regularization algorithm [PDF]
Computational Optimization and Applications, 2011 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Nicholas I. M. Gould +2 more
openaire +5 more sources