Results 11 to 20 of about 3,555,113 (245)

Linear least squares estimation of the first order moving average parameter [PDF]

open access: yes, 2002
We propose an iterative procedure to minimize the sum of squares function which avoids the nonlinear nature of estimating the first order moving average parameter and provides a closed form of the estimator.
Valdero Mora, Emili
core   +6 more sources

Analysis of a plane stress wave by the moving least squares method [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2014
A meshless method based on the moving least squares approximation is applied to stress wave propagation analysis. Two kinds of node meshes, the randomly generated mesh and the regular mesh are used.
Wojciech Dornowski
doaj   +1 more source

Moving least-squares corrections for smoothed particle hydrodynamics

open access: yesAnnals of Geophysics, 2011
First-order moving least-squares are typically used in conjunction with smoothed particle hydrodynamics in the form of post-processing filters for density fields, to smooth out noise that develops in most applications of smoothed particle hydrodynamics ...
Ciro Del Negro   +3 more
doaj   +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

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

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

A moving least squares meshless method for solving the generalized Kuramoto-Sivashinsky equation

open access: yesAlexandria Engineering Journal, 2016
We use a moving least squares meshless method to solve the nonlinear Kuramoto-Sivashinsky equation. The accuracy of the method is demonstrated by three test problems for which the numerical results are found to be in excellent agreement with analytical ...
E. Dabboura, H. Sadat, C. Prax
doaj   +1 more source

A risk-sensitive momentum approach to stock selection [PDF]

open access: yesEkonomski Anali, 2019
One of the main implications of Lo’s Adaptive Markets Hypothesis (2004, 2012, 2017) is that returns of virtually all assets can change over time.
Kalayil Tina   +3 more
doaj   +1 more source

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