Results 21 to 30 of about 1,136,335 (337)

Decision-Level Fusion of Spatially Scattered Multi-Modal Data for Nondestructive Inspection of Surface Defects

open access: yesSensors, 2016
This article focuses on the fusion of flaw indications from multi-sensor nondestructive materials testing. Because each testing method makes use of a different physical principle, a multi-method approach has the potential of effectively differentiating ...
René Heideklang, Parisa Shokouhi
doaj   +1 more source

Local RBF approximation for scattered data fitting with bivariate splines [PDF]

open access: yes, 2005
In this paper we continue our earlier research [4] aimed at developing effcient methods of local approximation suitable for the first stage of a spline based two-stage scattered data fitting algorithm.
A. Björck   +9 more
core   +2 more sources

Parallel Hierarchical Genetic Algorithm for Scattered Data Fitting through B-Splines

open access: yesApplied Sciences, 2019
Curve fitting to unorganized data points is a very challenging problem that arises in a wide variety of scientific and engineering applications. Given a set of scattered and noisy data points, the goal is to construct a curve that corresponds to the best
Jose Edgar Lara-Ramirez   +5 more
doaj   +1 more source

Computational Optimized Monitoring Methodology to Avoid Crowd Crush Accidents with Scattered Data

open access: yesAppliedMath, 2022
Recently, a crowd crush accident occurred in Seoul. Mathematics and data science can contribute to understanding this incident and to avoiding future accidents.
Dongyung Kim
doaj   +1 more source

Monotonicity preserving approximation of multivariate scattered data [PDF]

open access: yes, 2005
This paper describes a new method of monotone interpolation and smoothing of multivariate scattered data. It is based on the assumption that the function to be approximated is Lipschitz continuous.
Beliakov, Gleb
core   +1 more source

Fractional Euclidean Distance Matrices Extrapolator for Scattered Data

open access: yesJaunųjų Mokslininkų Darbai, 2017
The paper deals with application of fractional distance matrices to construct the efficient extrapolator of scattered data. The properties of fractional distance matrices are studied in order to develop the linear extrapolator.
Natalija Pozniak, Leonidas Sakalauskas
doaj   +1 more source

Scattered data fitting by direct extension of local polynomials to bivariate splines [PDF]

open access: yes, 2004
We present a new scattered data fitting method, where local approximating polynomials are directly extended to smooth (C 1 or C 2) splines on a uniform triangulation (the four-directional mesh).
Davydov, O., Zeilfelder, F.
core   +1 more source

Repeatability Estimates Of Sloped Scattered Data

open access: yesUndergraduate Journal of Mathematical Modeling: One + Two, 2009
Repeatability is the variance in data accumulated under fixed conditions. It is important for quality control as it costs both time and money to recalibrate tools and remanufacture machines.
Angelique Waller
doaj   +1 more source

A Proximal–Based Algorithm for Piecewise Sparse Approximation with Application to Scattered Data Fitting

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2022
In some applications, there are signals with a piecewise structure to be recovered. In this paper, we propose a piecewise sparse approximation model and a piecewise proximal gradient method (JPGA) which aim to approximate piecewise signals.
Zhong Yijun   +3 more
doaj   +1 more source

An algorithm for choosing a good shape parameter for radial basis functions method with a case study in image processing

open access: yesResults in Applied Mathematics, 2022
Some efficient radial basis functions (RBFs) have a free parameter called the shape parameter that controls the shape of approximating function. This parameter is mainly selected by trial and error related to the problem.
Shabnam Sadat Seyed Ghalichi   +2 more
doaj   +1 more source

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