Results 41 to 50 of about 90,750 (294)

On Quasi-interpolation with Radial Basis Functions

open access: yesJournal of Approximation Theory, 1993
The author shows that infinite linear combinations of translates of radial functions can be defined that provide polynomial exactness in spaces whose dimensions are not restricted to a prescribed parity as it was usually assumed. Complete proofs as well as comments and references are presented along the paper.
openaire   +1 more source

CURVATURE BASED CHARACTERIZATION OF RADIAL BASIS FUNCTIONS: APPLICATION TO INTERPOLATION

open access: yesMathematical Modelling and Analysis, 2023
Choosing the scale or shape parameter of radial basis functions (RBFs) is a well-documented but still an open problem in kernel-based methods. It is common to tune it according to the applications, and it plays a crucial role both for the accuracy and stability of the method.
Mohammad Heidari   +2 more
openaire   +4 more sources

A modified radial basis function interpolation method for aerodynamic load application

open access: yesHangkong gongcheng jinzhan
Aerodynamic loads are an important type of load in finite element analysis of aircraft structures. Due to the mismatch between the mesh used in computational fluid dynamics(CFD)and the one in structural analysis, and the load can be given in the form of ...
ZHENG Wei, XIONG Jun, LIU Jian, JI Kai
doaj   +1 more source

An Improved Full-Wave Multilevel Green’s Function Interpolation Method With RBF-QR Technique for Fast Field Evaluation

open access: yesIEEE Access, 2017
An improved full-wave multilevel Green's function interpolation method (MLGFIM) with RBF-QR technique is proposed for the fast evaluation of electromagnetic field.
Peng Zhao, Chi Hou Chan, Gaofeng Wang
doaj   +1 more source

Computation of transient viscous flows using indirect radial basis function networks [PDF]

open access: yes, 2007
In this paper, an indirect/integrated radial-basis-function network (IRBFN) method is further developed to solve transient partial differential equations (PDEs) governing fluid flow problems.
Mai-Cao, Lan   +2 more
core   +1 more source

Analytical formulas for polynomial coefficients in radial basis function interpolation

open access: yesMathematical Modelling and Analysis
Radial basis functions (RBF) are used in many areas, including interpolation and approximation, solution of partial differential equations, neural networks, and machine learning. RBFs are based on the sum of weighted kernel functions.
Vaclav Skala
doaj   +1 more source

Application of meshless local radial point interpolation (MLRPI) on a one-dimensional inverse heat conduction problem

open access: yesAin Shams Engineering Journal, 2016
In this paper, the meshless local radial point interpolation (MLRPI) method is applied to one-dimensional inverse heat conduction problems. The meshless LRPIM is one of the truly meshless methods since it does not require any background integration cells.
Elyas Shivanian   +1 more
doaj   +1 more source

A Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
Block Diagram of the Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller. ABSTRACT This article introduces a discrete‐time robust adaptive one‐sample‐ahead preview super‐twisting sliding mode controller. A stability analysis of the controller by Lyapunov criteria is developed to demonstrate its robustness in handling both ...
Guilherme Vieira Hollweg   +5 more
wiley   +1 more source

The Matlab Radial Basis Function Toolbox

open access: yesJournal of Open Research Software, 2017
Radial Basis Function (RBF) methods are important tools for scattered data interpolation and for the solution of Partial Differential Equations in complexly shaped domains.
Scott A. Sarra
doaj   +1 more source

Partition of unity interpolation using stable kernel-based techniques [PDF]

open access: yes, 2016
In this paper we propose a new stable and accurate approximation technique which is extremely effective for interpolating large scattered data sets.
Cavoretto, R.   +4 more
core   +1 more source

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