Results 51 to 60 of about 1,435,162 (166)

A new distribution for robust least squares [PDF]

open access: yes, 2014
A new distribution is introduced, which we call the twin-t distribution. This distribution is heavy-tailed like the t distribution, but closer to normality in the central part of the curve. Its properties are described, e.g.
Baker, Rose, Jackson, Dan
core  

On the constrained mock-Chebyshev least-squares

open access: yes, 2014
The algebraic polynomial interpolation on uniformly distributed nodes is affected by the Runge phenomenon, also when the function to be interpolated is analytic.
De Marchi, Stefano   +2 more
core   +1 more source

Analysis of moving least squares approximation revisited

open access: yes, 2015
In this article the error estimation of the moving least squares approximation is provided for functions in fractional order Sobolev spaces. The analysis presented in this paper extends the previous estimations and explains some unnoticed mathematical ...
Mirzaei, Davoud
core   +1 more source

Penerapan Partial Least Squares Pada Data Gingerol

open access: yesComTech, 2010
Multivariate calibration model aims to predict the expensive measures obtained by using the measures of a cheap and easy. There are several problems that often occur in the model calibration, among others, and multikolinear. To overcome these problems we
Margaretha Ohyver
doaj   +1 more source

Total Least Squares Registration of 3D Surfaces

open access: yesInternational Journal of Environment and Geoinformatics, 2015
Co-registration of point clouds of partially scanned objects is the first step of the 3D modeling workflow. The aim of co-registration is to merge the overlapping point clouds by estimating the spatial transformation parameters.
Umut Aydar, M. Orhan Altan
doaj   +1 more source

Least-Squares Contour Alignment [PDF]

open access: yesIEEE Signal Processing Letters, 2009
The contour alignment problem, considered in this letter, is to compute the minimal distance in a least-squares sense, between two explicitly represented contours, specified by corresponding points, after arbitrary rotation, scaling, and translation of one of the contours.
Markovsky, Ivan, Mahmoodi, Sasan
openaire   +3 more sources

Efficient least-squares basket-weaving

open access: yes, 2012
We report on a novel method to solve the basket-weaving problem. Basket-weaving is a technique that is used to remove scan-line patterns from single-dish radio maps. The new approach applies linear least-squares and works on gridded maps from arbitrarily
Flöer, L., Kraus, A., Winkel, B.
core   +1 more source

On estimating gravity anomalies: A comparison of least squares collocation with least squares techniques [PDF]

open access: yes
The least squares collocation algorithm for estimating gravity anomalies from geodetic data is shown to be an application of the well known regression equations which provide the mean and covariance of a random vector (gravity anomalies) given a ...
Argentiero, P., Lowrey, B.
core   +1 more source

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

Least Squares Ranking on Graphs [PDF]

open access: yes, 2011
Given a set of alternatives to be ranked, and some pairwise comparison data, ranking is a least squares computation on a graph. The vertices are the alternatives, and the edge values comprise the comparison data.
Hirani, Anil N.   +2 more
core  

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