Results 21 to 30 of about 66,673 (199)

Parabolic-cylindrical moving least squares surfaces [PDF]

open access: yesComputers & Graphics, 2015
Moving least squares (MLS) surface approximation is a popular tool for the processing and reconstruction of non-structured and noisy point clouds. This paper introduces a new variant improving the approximation quality when the underlying surface is assumed to be locally developable, which is often the case in point clouds coming from the acquisition ...
Brett Ridel   +3 more
openaire   +1 more source

Local geoid height approximation and interpolation using moving least squares approach

open access: yesGeodesy and Geodynamics, 2020
In this paper an introduction of the moving least squares approach is presented in the context of data approximation and interpolation problems in Geodesy.
M. Kiani
doaj   +1 more source

Moving least squares multiresolution surface approximation [PDF]

open access: yes16th Brazilian Symposium on Computer Graphics and Image Processing (SIBGRAPI 2003), 2003
We describe a new method for surface reconstruction based on unorganized point clouds without normals. We also present a new algorithm for refining the initial triangulation. The output of the method is a refined triangular mesh with points on the moving least squares surface of the original point cloud.
Boris Mederos   +2 more
openaire   +1 more source

Spherical approximating and interpolating moving least squares in geodesy and geophysics: a case study for deriving gravity acceleration at sea surface in the Persian Gulf

open access: yesJournal of Geodetic Science, 2020
This paper is aimed at introducing the concept of Spherical Interpolating Moving Least Squares to the problems in geodesy and geophysics. Based on two previously known methods, namely Spherical Moving Least Squares and Interpolating Moving Least Squares,
Kiani M.
doaj   +1 more source

Numerical analysis of the Volterra differential equations via a combination of evolutionary algorithms with moving least squares and finite difference methods

open access: yesThe Journal of Engineering, 2021
In this paper, the Volterra differential equations governing on the predator‐prey dynamics is numerically solved through the combination of evolutionary algorithms with Moving Least Squares as well as the Finite Difference Method.
Mohammad Javad Mahmoodabadi
doaj   +1 more source

Improvement of Time Forecasting Models Using Machine Learning for Future Pandemic Applications Based on COVID-19 Data 2020–2022

open access: yesDiagnostics, 2023
Improving forecasts, particularly the accuracy, efficiency, and precision of time-series forecasts, is becoming critical for authorities to predict, monitor, and prevent the spread of the Coronavirus disease.
Abdul Aziz K Abdul Hamid   +9 more
doaj   +1 more source

A Novel Reconstruction Method for Measurement Data Based on MTLS Algorithm

open access: yesSensors, 2020
Reconstruction methods for discrete data, such as the Moving Least Squares (MLS) and Moving Total Least Squares (MTLS), have made a great many achievements with the progress of modern industrial technology.
Tianqi Gu   +3 more
doaj   +1 more source

Moving Least Squares Method for a One-Dimensional Parabolic Inverse Problem

open access: yesAbstract and Applied Analysis, 2014
This paper investigates the numerical solution of a class of one-dimensional inverse parabolic problems using the moving least squares approximation; the inverse problem is the determination of an unknown source term depending on time.
Baiyu Wang
doaj   +1 more source

Moving Least Squares via Orthogonal Polynomials [PDF]

open access: yesSIAM Journal on Scientific Computing, 2010
A method for moving least squares interpolation and differentiation is presented in the framework of orthogonal polynomials on discrete points. This yields a robust and efficient method which can avoid singularities and breakdowns in the moving least squares method caused by particular configurations of nodes in the system.
openaire   +3 more sources

Approximation of functions over manifolds: A Moving Least-Squares approach [PDF]

open access: yesJournal of Computational and Applied Mathematics, 2021
arXiv admin note: text overlap with arXiv:1606 ...
Sober, Barak   +3 more
openaire   +5 more sources

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