Results 41 to 50 of about 81 (80)

Q-deformed and λ-parametrized A-generalized logistic function induced Banach space valued multivariate multi-layer neural network approximations

open access: yes
Here we research the multivariate quantitative approximation of Banach space valued continuous multivariate functions on a box or RN, N ∈ N, by the multivariate normalized, quasi-interpolation, Kantorovich type and quadrature type neural network ...
ANASTASSIOU, George A.
core   +1 more source

A Wavelet Toolbox for Large Scale Image Processing

open access: yes, 1999
The wavelet transform has proven to be a valuable tool for image processing applications, like image compression and noise reduction. In this paper we present a scheme to process very large images that do not fit in the memory of a single computer, based
Geert Uytterhoeven   +2 more
core  

Symmetric Orthonormal Scaling Functions and Wavelets with Dilation Factor d = 4

open access: yes, 1997
It is well known that in the univariate case, up to an integer shift and possible sign change, there is no dyadic compactly supported symmetric orthonormal scaling function except for the Haar function.
Bin Han
core  

Scattered Node Compact Finite Difference-Type Formulas Generated from Radial Basis Functions

open access: yes, 2008
In standard equispaced finite difference (FD) formulas, symmetries can make the order of accuracy relatively high compared to the number of nodes in the FD stencil. With scattered nodes, such symmetries are no longer available.
Grady B. Wright A, Bengt Fornberg B
core  

Approximation From Shift-Invariant Subspaces of ...

open access: yes, 1991
: A complete characterization is given of closed shift-invariant subspaces of L 2 (IR d ) which provide a specified approximation order. When such a space is principal (i.e., generated by a single function), then this characterization is in terms of ...
Amos Ron, Ronald A. Devore, Carl de Boor
core  

On Existence and Weak Stability of Matrix Refinable Functions

open access: yes, 1996
: We consider the existence of distributional (or L 2 ) solutions of the matrix refinement equation b \Phi = P(\Delta=2) b \Phi(\Delta=2); where P is an r \Theta r matrix with trigonometric polynomial entries.
Qingtang Jiang, Zuowei Shen
core  

Construction Techniques for Highly Accurate Quasi-Interpolation Operators

open access: yes, 1996
: Under mild additional assumptions this paper constructs quasi-interpolants in the form f h (x) = +1 X j=\Gamma1 f(hj)' h i x h \Gamma j j ; x 2 IR; h ?
Zongmin Wu, Robert Schaback, R. Schaback
core  

Approximation properties of q-Baskakov operators

open access: yesOpen Mathematics, 2010
Finta Zoltán, Gupta Vijay
doaj   +1 more source

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