Results 11 to 20 of about 12,056,476 (300)
Variational Multiscale Nonparametric Regression: Algorithms and Implementation
Algorithms, 2020 Many modern statistically efficient methods come with tremendous computational challenges, often leading to large-scale optimisation problems. In this work, we examine such computational issues for recently developed estimation methods in nonparametric ...
Miguel del Alamo +3 more
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A Multiscale Reduced Basis Method for the Schrödinger Equation With Multiscale and Random Potentials [PDF]
Multiscale Modeling & Simulation, 2020 The semiclassical Schrödinger equation with multiscale and random potentials often appears when studying electron dynamics in heterogeneous quantum systems. As time evolves, the wavefunction develops high-frequency oscillations in both the physical space and the random space, which poses severe challenges for numerical methods.
Jingrun Chen +2 more
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Multiscale simulation strategies and mesoscale modelling of gas and liquid flows [PDF]
, 2009 This paper was presented at the 2nd Micro and Nano Flows Conference (MNF2009), which was held at Brunel University, West London, UK. The conference was organised by Brunel University and supported by the Institution of Mechanical Engineers, IPEM, the ...
2nd Micro and Nano Flows Conference (MNF2009) +2 more
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Entropy, 2023 Multiscale estimation for geographically weighted regression (GWR) and the related models has attracted much attention due to their superiority. This kind of estimation method will not only improve the accuracy of the coefficient estimators but also ...
Shi-Jie Gao +3 more
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A multiscale method for the heterogeneous Signorini problem [PDF]
Journal of Computational and Applied Mathematics, 2022 In this paper, we develop a multiscale method for solving the Signorini problem with a heterogeneous field. The Signorini problem is encountered in many applications, such as hydrostatics, thermics, and solid mechanics. It is well-known that numerically solving this problem requires a fine computational mesh, which can lead to a large number of degrees
Xin Su, Sai-Mang Pun
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Multiscale modeling of reservoir systems using geostatistical methods
Comptes Rendus. Géoscience, 2023 Identifying factors and quantifying the processes, influencing the extent of reservoir rocks and the distribution of their heterogeneities are fundamental prerequisites to improve the characterization of reservoir connectivity and its dynamic functioning.
Chihi, Hayet +4 more
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A molecular dynamics/extended finite element method for dynamic crack propagation
Vietnam Journal of Mechanics, 2008 A multiscale method is presented which couples a molecular dynamics approach for describing fracture at the crack tip with an extended finite element method for discretizing the remainder of the domain.
Pascal Aubertin +2 more
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Proper generalized decomposition of time-multiscale models [PDF]
, 2011 Models encountered in computational mechanics could involve many time scales. When these time scales cannot be separated, one must solve the evolution model in the entire time interval by using the finest time step that the model implies.
CHINESTA SORIA, Francisco +8 more
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Multi-scale methods for multi-component granular materials [PDF]
Computer Methods in Materials Science, 2013 In this paper we review recent progress made to understand granular chutes flow using multi-scale modeling techniques. We introduce the discrete particle method (DPM) and explain how to construct continuum fields from discrete data in a way that is ...
Anthony R. Thornton +3 more
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A multiscale method for data assimilation [PDF]
Computational Geosciences, 2018 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Rafael J. de Moraes +2 more
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