Results 1 to 10 of about 93,551 (286)

Homogeneous numerical cubature formulas of interpolatory type

open access: yesJournal of Numerical Analysis and Approximation Theory, 2002
In this paper we construct homogeneous numerical cubature formulas based on some numerical multivariate interpolation schemes.
Gheorghe Coman, Maria Solomon
doaj   +2 more sources

Integrating Interpolation and Extrapolation: A Hybrid Predictive Framework for Supervised Learning

open access: yesApplied Sciences
In the domain of supervised learning, interpolation and extrapolation serve as crucial methodologies for predicting data points within and beyond the confines of a given dataset, respectively. The efficacy of these methods is closely linked to the nature
Bo Jiang   +4 more
doaj   +1 more source

How to compute the constant term of a power of a Laurent polynomial efficiently [PDF]

open access: yes, 2012
We present an algorithm for efficient computation of the constant term of a power of a multivariate Laurent polynomial. The algorithm is based on univariate interpolation, does not require the storage of intermediate data and can be easily parallelized ...
Metelitsyn, Pavel
core  

Reconstructing Rational Functions with $\texttt{FireFly}$

open access: yes, 2019
We present the open-source $\texttt{C++}$ library $\texttt{FireFly}$ for the reconstruction of multivariate rational functions over finite fields. We discuss the involved algorithms and their implementation.
Klappert, Jonas, Lange, Fabian
core   +1 more source

Multivariate interval interpolation

open access: yesJournal of Computational and Applied Mathematics, 1978
AbstractThe problem of multivariate interval interpolation has been defined. Two algorithms for the computation of a multivariate interval interpolating polynomial have been proposed. The algorithms have been compared among themselves with respect to the number of interval arithmetic operations required to compute them and the width of the computed ...
Bhattacharjee, G.P., Majumder, K.L.
openaire   +2 more sources

Multivariate Smooth Symmetrized and Perturbed Hyperbolic Tangent Neural Network Approximation over Infinite Domains

open access: yesMathematics
In this article, we study the multivariate quantitative smooth approximation under differentiation of functions. The approximators here are multivariate neural network operators activated by the symmetrized and perturbed hyperbolic tangent activation ...
George A. Anastassiou
doaj   +1 more source

Reduction of decision rule of multivariate interpolation and approximation method in the problem of data classification [PDF]

open access: yesКомпьютерные исследования и моделирование, 2016
This article explores a method of machine learning based on the theory of random functions. One of the main problems of this method is that decision rule of a model becomes more complicated as the number of training dataset examples increases.
Ivan Vladimirovich Kopylov
doaj   +1 more source

BC_n-symmetric polynomials [PDF]

open access: yes, 2004
We consider two important families of BC_n-symmetric polynomials, namely Okounkov's interpolation polynomials and Koornwinder's orthogonal polynomials.
Rains, Eric M.
core   +1 more source

Stochastic collocation on unstructured multivariate meshes

open access: yes, 2015
Collocation has become a standard tool for approximation of parameterized systems in the uncertainty quantification (UQ) community. Techniques for least-squares regularization, compressive sampling recovery, and interpolatory reconstruction are becoming ...
Narayan, Akil, Zhou, Tao
core   +1 more source

Multivariate Refinable Interpolating Functions

open access: yesApplied and Computational Harmonic Analysis, 1999
The author gives an algorithm for the construction of refinable interpolating functions for an arbitrary dilation matrix. This construction of refinable interpolating functions is an intermediate step in the construction of orthonormal wavelet bases and is of interest in its own right.
openaire   +2 more sources

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