Results 1 to 10 of about 3,137 (126)

A New Adaptive Algorithm for the Optimal Distribution of Computational Centers in the Meshless Multiquadric Method [PDF]

open access: yesپژوهش‌های زیرساخت‌های عمرانی, 2023
The computational centers in the multiquadric radial basis functions meshless method have high adaptability considering the lack of geometric and physical connection between the centers. In this research, a new adaptive algorithm is proposed based on the
Samira MohammadAlian   +2 more
doaj   +1 more source

The Shape Parameter in the Shifted Surface Spline—An Easily Accessible Approach

open access: yesMathematics, 2022
In this paper, we present an easily accessible approach to finding a suitable shape parameter in the shifted surface spline for function interpolation. We aim at helping more readers, including mathematicians and non-mathematicians, to use our method to ...
Lin-Tian Luh
doaj   +1 more source

A Numerical solution for the new model of time-fractional bond pricing‎: ‎Using a multiquadric approximation method [PDF]

open access: yesMathematics and Modeling in Finance, 2022
‎The bond market is an important part of the financial markets‎ . ‎The coupon bonds are issued by companies or banks for increasing capital ‎, ‎and the interest is paid by banks or companies‎, ‎periodically ‎.‎ ‎In terms of maturities ‎, ‎bonds are ...
Sedighe sharifian   +2 more
doaj   +1 more source

A Direct Prediction of the Shape Parameter in the Collocation Method of Solving Poisson Equation

open access: yesMathematics, 2022
In this paper, we totally discard the traditional trial-and-error algorithms of choosing the acceptable shape parameter c in the multiquadrics −c2+∥x∥2 when dealing with differential equations, for example, the Poisson equation, with the RBF collocation ...
Lin-Tian Luh
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

A Novel ANN-Based Radial Basis Function Collocation Method for Solving Elliptic Boundary Value Problems

open access: yesMathematics, 2023
Elliptic boundary value problems (BVPs) are widely used in various scientific and engineering disciplines that involve finding solutions to elliptic partial differential equations subject to certain boundary conditions.
Chih-Yu Liu, Cheng-Yu Ku
doaj   +1 more source

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

A kind of bivariate Bernoulli-type multiquadric quasi-interpolation operator with higher approximation order

open access: yesJournal of Inequalities and Applications, 2023
In this paper, a kind of bivariate Bernoulli-type multiquadric quasi-interpolation operator is studied by combining the known multiquadric quasi-interpolation operator with the generalized Taylor polynomial as the expansion in the bivariate Bernoulli ...
Ruifeng Wu
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

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