Results 1 to 10 of about 2,699 (168)

Solutions of a three-dimensional multi-term fractional anomalous solute transport model for contamination in groundwater. [PDF]

open access: yesPLoS ONE, 2023
The study presents a meshless computational approach for simulating the three-dimensional multi-term time-fractional mobile-immobile diffusion equation in the Caputo sense. The methodology combines a stable Crank-Nicolson time-integration scheme with the
Imtiaz Ahmad   +4 more
doaj   +2 more sources

Least squares surface approximation to scattered data using multiquadric functions [PDF]

open access: yes, 1992
This report documents an investigation into some methods for fitting surfaces to scattered data. The form of the fitting function is a multiquadric function with the criteria for the fit being the least mean squared resifual for the data points.
Franke, Richard H.   +2 more
core   +4 more sources

Sequential optimization of strip bending process using multiquadric radial basis function surrogate models [PDF]

open access: yesKey Engineering Materials, 2013
Surrogate models are used within the sequential optimization strategy for forming processes. A sequential improvement (SI) scheme is used to refine the surrogate model in the optimal region. One of the popular surrogate modeling methods for SI is Kriging.
Boogaard, A.H. van den   +2 more
core   +7 more sources

Inverse Multiquadric Function to Price Financial Options under the Fractional Black–Scholes Model

open access: yesFractal and Fractional, 2022
The inverse multiquadric radial basis function (RBF), which is one of the most important functions in the theory of RBFs, is employed on an adaptive mesh of points for pricing a fractional Black–Scholes partial differential equation (PDE) based on the ...
Yanlai Song, Stanford Shateyi
doaj   +2 more sources

Numerical Solution of Poisson's Equation Using a Combination of Logarithmic and Multiquadric Radial Basis Function Networks [PDF]

open access: yesJournal of Applied Mathematics, 2012
This paper presents numerical solution of elliptic partial differential equations (Poisson's equation) using a combination of logarithmic and multiquadric radial basis function networks.
Mohammad Mehdi Mazarei, Azim Aminataei
doaj   +4 more sources

Total Variation Filter via Multiquadric Radial Basis Function Approximation Scheme for Additive Noise Removal [PDF]

open access: yesIEEE Access, 2020
The Digital Total Variation (DTV) scheme is a digitized energy regularization scheme used for image denoising. This technique takes advantage of being applied to arbitrarily located data points and also has the edge detective property.
Mushtaq Ahmad Khan   +8 more
doaj   +2 more sources

Localized method of particular solutions using polynomial basis functions for solving two-dimensional nonlinear partial differential equations

open access: yesPartial Differential Equations in Applied Mathematics, 2021
The localized method is one of the popular approaches in solving large-scale problems in science and engineering. In this paper, we implement the localized method of particular solutions using polynomial basis functions for solving various nonlinear ...
T. Dangal   +2 more
doaj   +1 more source

A Novel Machine Learning Approach for Detection of Coronary Artery Disease Using Reduced Non-linear and Chaos Features [PDF]

open access: yesInternational Journal Bioautomation, 2022
In this research paper, authors present an automated system in this paper that integrates a ranking technique with Principal Component Analysis (PCA), Generalized Discriminant Analysis (GDA) and a 1-Norm Bidirectional Extreme Learning Machine (1-NBELM ...
Ram Sewak Singh   +4 more
doaj   +1 more source

Extreme learning machine with feature extraction using GLCM for phosphorus deficiency identification of cocoa plants

open access: yesIlkom Jurnal Ilmiah, 2022
This study aims to analyze the implementation of the Extreme Learning Machine (ELM) Algorithm with Gray Level Co-Occurrence Matrix (GLCM) as an Image Feature Extraction method in identifying phosphorus deficiency in cocoa plants based on leaf ...
Basri Basri   +3 more
doaj   +1 more source

A Simplified Radial Basis Function Method with Exterior Fictitious Sources for Elliptic Boundary Value Problems

open access: yesMathematics, 2022
In this article, we propose a simplified radial basis function (RBF) method with exterior fictitious sources for solving elliptic boundary value problems (BVPs). Three simplified RBFs, including Gaussian, multiquadric (MQ), and inverse multiquadric (IMQ)
Chih-Yu Liu, Cheng-Yu Ku
doaj   +1 more source

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