Results 31 to 40 of about 1,509,637 (194)

New Possibilities and Applications of the Least Squares Collocation Method

open access: yesEPJ Web of Conferences, 2018
Least squares collocation method (LSC) is a versatile numerical method for solving boundary value problems for PDE. The present article demonstrates the abilities of LSC to solve various problems – in particular, calculations of bending of isotropic ...
Shapeev Vasiliy   +3 more
doaj   +1 more source

A robust partial least squares method with applications [PDF]

open access: yes, 2007
Partial least squares regression (PLS) is a linear regression technique developed to relate many regressors to one or several response variables. Robust methods are introduced to reduce or remove the effect of outlying data points.
González, Javier   +2 more
core   +1 more source

Identification of the Fractional-Order Systems: A Frequency Domain Approach [PDF]

open access: yesActa Montanistica Slovaca, 2011
The paper deals with a comparison of different optimization methods to identification of fractional order dynamical systems.The fractional models of the examples of physical systems - ultracapacitors - are established.
Andrzej Dzieliński   +5 more
doaj  

A Note on Separable Nonlinear Least Squares Problem

open access: yes, 2011
Separable nonlinear least squares (SNLS)problem is a special class of nonlinear least squares (NLS)problems, whose objective function is a mixture of linear and nonlinear functions.
Al-Mushayt, Omar Saeed, Gharibi, Wajeb
core   +1 more source

Adaptive Phasor Estimation Algorithm Based on a Least Squares Method

open access: yesEnergies, 2019
This paper proposes an adaptive phasor estimation algorithm based on a least square method that can suppress the adverse effect of an exponentially decreasing DC offset component in a phasor estimation process. The proposed algorithm is composed of three
Woo-Joong Kim   +2 more
doaj   +1 more source

Dual system least squares finite element method for the Helmholtz equation

open access: yesResults in Applied Mathematics, 2021
This paper uses LL∗method to solve Helmholtz equation in case when the frequency parameter is large. The Helmholtz equation is reformulated to the first order system by introducing a new variable and then the corresponding dual problem is considered. The
Nuree Song, Eunjung Lee
doaj   +1 more source

A Proximal-Gradient Homotopy Method for the Sparse Least-Squares Problem [PDF]

open access: yes, 2012
We consider solving the $\ell_1$-regularized least-squares ($\ell_1$-LS) problem in the context of sparse recovery, for applications such as compressed sensing. The standard proximal gradient method, also known as iterative soft-thresholding when applied
Xiao, Lin, Zhang, Tong
core   +1 more source

On-line nonparametric regression to learn state-dependent disturbances [PDF]

open access: yes, 2003
A combination of recursive least squares and weighted least squares is made which can adapt its structure such that a relation between in- and output can he approximated, even when the structure of this relation is unknown beforehand.\ud This method can ...
Kruif, Bas J. de, Vries, Theo J.A. de
core   +2 more sources

LEAST – SQUARES METHOD FOR ESTIMATING DIFFUSION COEFFICIENT

open access: yesInternational Journal of Industrial Engineering and Production Research, 2007
Determining the diffusion coefficient based on the solution of the linear inverse problem of the parameter estimation by using the Least-square method is presented.
Abdolsadeh Neisy
doaj  

Least – Squares Method For Estimating Diffusion Coefficient

open access: yesInternational Journal of Industrial Engineering and Production Research, 2008
: Determination of the diffusion coefficient on the base of solution of a linear inverse problem of the parameter estimation using the Least-square method is presented in this research.
A. Neisy
doaj  

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