Results 11 to 20 of about 3,168,199 (247)

Penalized partial least squares for pleiotropy

open access: yesBMC Bioinformatics, 2021
Background The increasing number of genome-wide association studies (GWAS) has revealed several loci that are associated to multiple distinct phenotypes, suggesting the existence of pleiotropic effects.
Camilo Broc   +2 more
doaj   +1 more source

Chebyshev Approximations by Least Squares Method

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2020
We consider the problem of linear approximation in the form of the minimization problem of the weighted Chebyshev norm, and that in the form of the minimization problem of the weighted Euclidean norm of the residual vector.
V.I. Zorkaltsev, E. V. Gubiy
doaj   +1 more source

Total Least Squares Spline Approximation

open access: yesMathematics, 2019
Spline approximation, using both values y i and x i as observations, is of vital importance for engineering geodesy, e.g., for approximation of profiles measured with terrestrial laser scanners, because it enables the consideration of
Frank Neitzel   +2 more
doaj   +1 more source

Comparison between total least squares and ordinary least squares in obtaining the linear relationship between stable water isotopes

open access: yesGeoscience Letters, 2022
The linear relationship between two stable water isotopes (δD and δ18O) has been used to examine the physical processes and movements or changes of three water phases (water vapor, liquid water and ice), including deuterium excess.
Jeonghoon Lee   +3 more
doaj   +1 more source

Götterdämmerung over total least squares

open access: yesJournal of Geodetic Science, 2016
The traditional way of solving non-linear least squares (LS) problems in Geodesy includes a linearization of the functional model and iterative solution of a nonlinear equation system.
Malissiovas G., Neitzel F., Petrovic S.
doaj   +1 more source

GALS – Gradient Analysis by Least Squares [PDF]

open access: yesAnnales Geophysicae, 2008
We present a method, GALS (Gradient Analysis by Least Squares) for estimating the gradient of a physical field from multi-spacecraft observations.
M. Hamrin   +4 more
doaj   +1 more source

Differentially Private Ordinary Least Squares

open access: yesThe Journal of Privacy and Confidentiality, 2019
Linear regression is one of the most prevalent techniques in machine learning; however, it is also common to use linear regression for its explanatory capabilities rather than label prediction.
Or Sheffet
doaj   +1 more source

Non-parametric and least squares Langley plot methods [PDF]

open access: yesAtmospheric Measurement Techniques, 2016
Langley plots are used to calibrate sun radiometers primarily for the measurement of the aerosol component of the atmosphere that attenuates (scatters and absorbs) incoming direct solar radiation.
P. W. Kiedron, J. J. Michalsky
doaj   +1 more source

Estimating Detection Limits in Chromatography from Calibration Data: Ordinary Least Squares Regression vs. Weighted Least Squares

open access: yesSeparations, 2018
It is necessary to determine the limit of detection when validating any analytical method. For methods with a linear response, a simple and low labor-consuming procedure is to use the linear regression parameters obtained in the calibration to estimate ...
Juan M. Sanchez
doaj   +1 more source

Orthogonal least squares regression with tunable kernels [PDF]

open access: yes, 2005
A novel technique is proposed to construct sparse regression models based on the orthogonal least squares method with tunable kernels. The proposed technique tunes the centre vector and diagonal covariance matrix of individual regressor by incrementally ...
Wang, X.X., Chen, S., Brown, D.J.
core   +2 more sources

Home - About - Disclaimer - Privacy