Results 41 to 50 of about 3,206 (190)
Mathematics and Computers in SimulationUnisolvence of unsymmetric Kansa collocation is still a substantially open problem. We prove that Kansa matrices with MultiQuadrics and Inverse MultiQuadrics for the Dirichlet problem of the Poisson equation are almost surely nonsingular, when the collocation points are chosen by any continuous random distribution in the domain interior and arbitrarily
R. Cavoretto +4 more
openaire +3 more sources
The Shape Parameter in the Shifted Surface Spline—A Sharp and Friendly Approach
MathematicsThis is a continuation of our previous study on the shape parameter contained in the shifted surface spline. We insist that the data points be purely scattered without meshes and the domain can be of any shape when conducting function interpolation by ...
Lin-Tian Luh
doaj +1 more source
A Semi-Lagrangian Scheme with Radial Basis Approximation for Surface Reconstruction
, 2016 We propose a Semi-Lagrangian scheme coupled with Radial Basis Function interpolation for approximating a curvature-related level set model, which has been proposed by Zhao et al.
Carlini, Elisabetta, Ferretti, Roberto
core +1 more source
Spatial characteristics of thunderstorm rainfall fields and their relation to runoff [PDF]
, 2003 The main aim of this study was to assess the ability of simple geometric measures of thunderstorm rainfall in explaining the runoff response from the watershed. For calculation of storm geometric properties (e.g.
Goodrich, DC +3 more
core +1 more source
Evaluate the Prediction Level of Polar Motion Interpolation for 6 hr in Ideal and Real Environments
Earth and Space Science, Volume 13, Issue 1, January 2026.Abstract With the increasing demands for global development, deep space exploration missions are taking place more frequently, rendering the traditional 24‐hr Polar Motion (PM) predictions inadequate for supporting the frequent operations of spacecraft.
Wei Miao, Xueqing Xu, Yonghong Zhou
wiley +1 more source
Local interpolation schemes for landmark-based image registration: a comparison
, 2014 In this paper we focus, from a mathematical point of view, on properties and performances of some local interpolation schemes for landmark-based image registration.
Allasia, Giampietro +2 more
core +1 more source
MathematicsThis study introduces a deep neural network approach that utilizes radial basis functions (RBFs) to solve forward and inverse problems in the process of diffusion.
Cheng-Yu Ku +3 more
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Monthly median f0F2 and M(3000)F2 ionospheric model over Europe
Annals of Geophysics, 1996 Monthly median f0F2 and M(3000)F2 ionospheric model, MQMF2, based on the multiquadric (MQ) method of spatial interpolation and a new ionospheric index MF2 describes the monthly median f0F2 and M(3000)F2 over Europe for any UT moment, month and level of ...
M. G. Skoblin +2 more
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Local RBF approximation for scattered data fitting with bivariate splines [PDF]
, 2005 In this paper we continue our earlier research [4] aimed at developing effcient methods of local approximation suitable for the first stage of a spline based two-stage scattered data fitting algorithm.
A. Björck +9 more
core +2 more sources
Journal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 4, December 2025.Abstract Electrical Resistivity Tomography (ERT) is widely used for subsurface imaging. Despite recent advancements in machine learning based ERT inversion using conventional deep learning models such as CNN and UNet, accurately delineating resistivity profiles of natural and artificial subsurface anomalies remains challenging.
Huichao Yin +6 more
wiley +1 more source