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3D DC geoelectric resistivity modeling with the singularity removal technique using finite element method based on orthosceme element [PDF]
HeliyonAs a commonly used method for near-surface surveys, there is a demand for lightweight, fast, and accurate 3D DC geoelectric resistivity modeling that can be execute on portable computers.
Supriyadi +4 more
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Multi-Level Variable Selection Using a BART-Enhanced Mixed-Effects Framework. [PDF]
Stat MedABSTRACT Selecting important individual‐ and cluster‐level predictors has become increasingly critical in healthcare research, where data often exhibit hierarchical structures due to collection from multiple clusters. Mixed‐effects models, which account for within‐cluster correlation and between‐cluster heterogeneity, are a natural approach for ...
Zhang K +5 more
europepmc +2 more sources
A New Approach to the Splitting Factor Preconditioner Applied to Linear Programming Problems
Trends in Computational and Applied Mathematics, 2022 In this paper, we present the results of a new approach to the splitting factor preconditioner, which is a preconditioner based on the Incomplete Cholesky factorization and the splitting preconditioner.
P. A. Kikuchi, A. R. L. Oliveira
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IMPROVED CONJUGATE GRADIENT BUNDLE ADJUSTMENT OF DUNHUANG WALL PAINTING IMAGES [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017 Bundle adjustment with additional parameters is identified as a critical step for precise orthoimage generation and 3D reconstruction of Dunhuang wall paintings.
K. Hu, X. Huang, H. You
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Mathematics, 2021 We aim to accelerate the linear equation solver for crack growth simulation based on the phase field model. As a first step, we analyze the properties of the coefficient matrices and prove that they are symmetric positive definite. This justifies the use
Gaku Ishii +2 more
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About analysis of large problems of structural mechanics on multi-core computers [PDF]
Инженерно-строительный журнал, 2013 The sparse direct solvers as well as iterative methods are considered for analysis of large-scale finite element problems of structural mechanics on multi-core computers.
S.Yu. Fialko
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Application of High-Performance Techniques for Solving Linear Systems of Algebraic Equations
Journal of Telecommunications and Information Technology, 2013 Solving many problems in mechanics, engineering, medicine and other (e.g., diffusion tensor magnetic resonance imaging or finite element modeling) requires the efficient solving of algebraic equations. In many cases, such systems are very complex with a
Daniel Grzonka
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Mathematical Modelling and Analysis, 2010 In this paper, first, by using the diagonally compensated reduction and incomplete Cholesky factorization methods, we construct a constraint preconditioner for solving symmetric positive definite linear systems and then we apply the preconditioner to ...
Zhuo-Hong Huang, Ting-Zhu Huang
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Journal of Telecommunications and Information Technology, 2016 In this article the preconditioned conjugate gradient (PCG) method, realized on GPU and intended to solution of large finite element problems of structural mechanics, is considered.
Sergiy Yu. Fialko , Filip Zeglen
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Perched groundwater simulation using the picard iteration‐based always active cell method
River, EarlyView.Abstract Aquitards within the vadose zone impede vertical infiltration, leading to the formation of saturated perched groundwater. Perched groundwater flows laterally along aquitards, resulting in a heterogeneous spatial distribution of groundwater recharge that significantly influences groundwater formation and evolution.
Wen Lu +9 more
wiley +1 more source