Results 11 to 20 of about 4,391 (152)

Kernel Adaptive Filtering Prediction Algorithm of Chaotic Time Series [PDF]

open access: yesZhengzhou Daxue xuebao. Gongxue ban, 2023
In practical environment, chaotic time series often contain a lot of noise and outliers. Because of these interference factors, the prediction performance of the kernel adaptive filter based on the second-order similarity measure could decrease ...
LIU Qiang   +3 more
doaj   +1 more source

Combining Nyström Methods for a Fast Solution of Fredholm Integral Equations of the Second Kind

open access: yesMathematics, 2021
In this paper, we propose a suitable combination of two different Nyström methods, both using the zeros of the same sequence of Jacobi polynomials, in order to approximate the solution of Fredholm integral equations on [−1,1].
Domenico Mezzanotte   +2 more
doaj   +1 more source

Application of Nyström method to a Fredholm integral equation describing induction heating

open access: yesEPJ Web of Conferences, 2015
An induction heating problem can be described by a Fredholm Integral Equation of the second kind. The equation is used to compute the eddy current of density. One method for solving such an equation is the Nyström method. It is based on the approximation
Rak Josef
doaj   +1 more source

An improved Nyström spectral graph clustering using k-core decomposition as a sampling strategy for large networks

open access: yesJournal of King Saud University: Computer and Information Sciences, 2022
Clustering on graphs (networks) is becoming intractable due to increasing sizes. Nyström spectral graph clustering (NSC) is a popular method to circumvent the problem.
Jingzhi Tu   +2 more
doaj   +1 more source

SUPER RUNGE-KUTTA NYSTRÖM METHOD FOR DIRECT INTEGRATION OF GENERAL THIRD ORDER ORDINARY DIFFERENTIAL EQUATIONS USING EXCEL WORKSHEET

open access: yesAcademy Journal of Science and Engineering, 2022
Super Runge-Kutta- Nyström (SRKN) method for direct solution of general third order ordinary differential equations (ODEs) is an extension of the Runge-Kutta- Nyström (RKN) for solution of second ODEs.This paper describe and implement by means of a ...
Zamurat A. Adegboye   +2 more
doaj  

Development of an Efficient Diagonally Implicit Runge–Kutta–Nyström 5(4) Pair for Special Second Order IVPs

open access: yesAxioms, 2022
In this work, a new pair of diagonally implicit Runge–Kutta–Nyström methods with four stages is constructed. The proposed method has been derived to solve initial value problems of special second-order ordinary-differential equations. The principal local
Musa Ahmed Demba   +3 more
doaj   +1 more source

Superconvergent Nyström and Degenerate Kernel Methods for Integro-Differential Equations

open access: yesMathematics, 2022
The aim of this paper is to carry out an improved analysis of the convergence of the Nyström and degenerate kernel methods and their superconvergent versions for the numerical solution of a class of linear Fredholm integro-differential equations of the ...
Abdelmonaim Saou   +3 more
doaj   +1 more source

Constrained spectral clustering via multi–layer graph embeddings on a grassmann manifold

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2019
We present two algorithms in which constrained spectral clustering is implemented as unconstrained spectral clustering on a multi-layer graph where constraints are represented as graph layers.
Trokicić Aleksandar   +1 more
doaj   +1 more source

Two-Dimensional Fredholm Integro-Differential Equation with Singular Kernel and Its Numerical Solutions

open access: yesAdvances in Mathematical Physics, 2022
In this paper, we introduce the nonlinear Fredholm integro-differential equation of the second kind with singular kernel in two-dimensional NT-DFIDE. Furthermore, we study this new equation numerically.
Abeer M. Al-Bugami
doaj   +1 more source

Semi Implicit Hybrid Methods with Higher Order Dispersion for Solving Oscillatory Problems

open access: yesAbstract and Applied Analysis, 2013
We constructed three two-step semi-implicit hybrid methods (SIHMs) for solving oscillatory second order ordinary differential equations (ODEs). The first two methods are three-stage fourth-order and three-stage fifth-order with dispersion order six and ...
S. Z. Ahmad   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy