Results 31 to 40 of about 13,110,779 (313)

A Second-Order Perceptron Algorithm [PDF]

open access: yesSIAM Journal on Computing, 2002
Summary: Kernel-based linear-threshold algorithms, such as support vector machines and Perceptron-like algorithms, are among the best available techniques for solving pattern classification problems. In this paper, we describe an extension of the classical Perceptron algorithm, called second-order Perceptron, and analyze its performance within the ...
CESA BIANCHI N   +2 more
openaire   +4 more sources

An Accuracy-preserving Block Hybrid Algorithm for the Integration of Second-order Physical Systems with Oscillatory Solutions

open access: yesJournal of Nigerian Society of Physical Sciences, 2023
It is a known fact that in most cases, to integrate an oscillatory problem, higher order A-stable methods are often needed. This is because such problems are characterized by stiffness, chaos and damping, thus making them tedious to solve.
Joshua Sunday   +2 more
doaj   +1 more source

Exponential Time Differencing Algorithm for Pulse-Coupled Hodgkin-Huxley Neural Networks

open access: yesFrontiers in Computational Neuroscience, 2020
The exponential time differencing (ETD) method allows using a large time step to efficiently evolve stiff systems such as Hodgkin-Huxley (HH) neural networks.
Zhong-qi Kyle Tian, Douglas Zhou
doaj   +1 more source

Nonoscillation and Oscillation Criteria for a Class of Second-Order Nonlinear Neutral Delay Differential Equations with Positive and Negative Coefficients

open access: yesAxioms, 2022
In this paper, we investigate some nonoscillatory and oscillatory solutions for a class of second-order nonlinear neutral delay differential equations with positive and negative coefficients.
Rongrong Guo   +2 more
doaj   +1 more source

Second-Order Weak Approximations of CKLS and CEV Processes by Discrete Random Variables

open access: yesMathematics, 2021
In this paper, we construct second-order weak split-step approximations of the CKLS and CEV processes that use generation of a three−valued random variable at each discretization step without switching to another scheme near zero, unlike other known ...
Gytenis Lileika, Vigirdas Mackevičius
doaj   +1 more source

Second-order Darboux displacements [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2003
The potentials for a one dimensional Schroedinger equation that are displaced along the x axis under second order Darboux transformations, called 2-SUSY invariant, are characterized in terms of a differential-difference equation. The solutions of the Schroedinger equation with such potentials are given analytically for any value of the energy.
Samsonov, B. F.   +3 more
openaire   +2 more sources

Continuous Adaptive Finite Reaching Time Control and Second-Order Sliding modes [PDF]

open access: yes, 2013
This paper focuses on the design of adaptive finite reaching time control for first- and second-order dynamic systems with perturbation terms given in a regressive form. The uncertainties considered here are assumed to be bounded with unknown bounds. The
Spurgeon, Sarah K.   +3 more
core   +1 more source

Sharp results for oscillation of second-order neutral delay differential equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2023
The aim of the present paper is to continue earlier works by the authors on the oscillation problem of second-order half-linear neutral delay differential equations.
Martin Bohner   +2 more
doaj   +1 more source

A second order logic of existence [PDF]

open access: yes, 1969
Publisher's, offprint versionA. N. Prior in [9] has suggested an approach towards a second order logic of existence where, following medieval logicians, we distinguish “between predicates (like ‘is red’, ‘is hard’, etc.) which entail existence, and ...
Cocchiarella, Nino
core   +1 more source

Numerical Analysis of Convection–Diffusion Using a Modified Upwind Approach in the Finite Volume Method

open access: yesMathematics, 2020
The main focus of this study was to develop a numerical scheme with new expressions for interface flux approximations based on the upwind approach in the finite volume method.
Arafat Hussain   +2 more
doaj   +1 more source

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