Results 71 to 80 of about 626,115 (180)

Spline coalescence hidden variable fractal interpolation functions

open access: yesJournal of Applied Mathematics, 2006
This paper generalizes the classical spline using a new construction of spline coalescence hidden variable fractal interpolation function (CHFIF). The derivative of a spline CHFIF is a typical fractal function that is self-affine or non-self-affine ...
A. K. B. Chand, G. P. Kapoor
doaj   +1 more source

Modeling of complex-valued Wiener systems using B-spline neural network

open access: yes, 2011
In this brief, a new complex-valued B-spline neural network is introduced in order to model the complex-valued Wiener system using observational input/output data. The complex-valued nonlinear static function in the Wiener system is represented using the
Hong, Xia   +3 more
core   +2 more sources

Study on the Involute Spline Measurement Method

open access: yesJixie chuandong, 2020
The research history and current situation of involute spline is briefly summarized. The new development and application status of involute spline technology in recent years is more systematically introduced.
Lu Qiulong, Wang Yunxiang
doaj  

Performance of robust GCV and modified GCV for spline smoothing [PDF]

open access: yes, 2012
While it is a popular selection criterion for spline smoothing, generalized cross-validation (GCV) occasionally yields severely undersmoothed estimates.
Anderssen, R.S.   +2 more
core  

An exponential spline for solving the fractional riccati differential equation

open access: yesپژوهش‌های ریاضی, 2022
In this Article, proposes an approximation for the solution of the Riccati equation based on the use of exponential spline functions. Then the exponential spline equations are obtained and the differential equation of the fractional Riccati is ...
reza jalilian, hooman emadifar
doaj  

Images denoising in case impulse noise using spline approximation

open access: yesMATEC Web of Conferences, 2018
Analytical equations of a new spline approximation method for filtering impulse noise in images are obtained. The proposed method differs from the known ones: when filtering images, one-dimensional sequential spline functions are used for direct and ...
Bezuglov Dmitriy A.   +2 more
doaj   +1 more source

Gamma Splines and Wavelets

open access: yesJournal of Engineering, 2013
In this work we introduce a new family of splines termed as gamma splines for continuous signal approximation and multiresolution analysis. The gamma splines are born by -times convolution of the exponential by itself.
Hannu Olkkonen, Juuso T. Olkkonen
doaj   +1 more source

Convex Approximation by Quadratic Splines

open access: yesJournal of Approximation Theory, 1993
The author estimates the error of approximation by \(C^ 1\)-convex quadratic splines of a given convex function \(f\) without any smoothness requirements on its derivative in terms of \(\omega_ 3(f,{1 \over n})\). Actually, he proves the following main Theorem: Let \(f \in C[0,1]\) be a convex, and \(n\) a positive integer.
openaire   +2 more sources

Nonholonomic motion planning for a free-falling cat using spline approximation

open access: yes, 2012
An optimal motion planning of a free-falling cat based on the spline approximation is investigated. Nonholonomicity arises in a free-falling cat subjected to nonintegrable velocity constraints or nonintegrable conservation laws.
郭正雄   +3 more
core   +1 more source

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