Results 11 to 20 of about 447,526 (198)

Comparison of straight line curve fit approaches for determining parameter variances and covariances

open access: yesInternational Journal of Metrology and Quality Engineering, 2020
Pressure balances are known to have a linear straight line equation of the form y = ax + b that relates the applied pressure x to the effective area y, and recent work has investigated the use of Ordinary Least Squares (OLS), Weighted Least Squares (WLS),
Ramnath Vishal
doaj   +1 more source

Using partial least squares to identify a dietary pattern associated with obesity in a nationally-representative sample of Canadian adults: Results from the Canadian Community Health Survey—Nutrition 2015

open access: yesPLoS ONE, 2021
Background Hybrid methods of dietary patterns analysis have emerged as a unique and informative way to study diet-disease relationships in nutritional epidemiology research. Objective To identify an obesogenic dietary pattern using weighted partial least
Alena (Praneet) Ng   +2 more
doaj   +2 more sources

Weighted Total Least Squares (WTLS) Solutions for Straight Line Fitting to 3D Point Data

open access: yesMathematics, 2020
In this contribution the fitting of a straight line to 3D point data is considered, with Cartesian coordinates xi, yi, zi as observations subject to random errors.
Georgios Malissiovas   +3 more
doaj   +1 more source

Testing straightness of line objects using total least squares [PDF]

open access: yesTehnika, 2017
The paper presents the adaptation (fitting) of a set of points, with an estimated two-dimensional positions, to the straight line model of the by the application of the Weighted Total Least Squares, WTLS.
Popović Jovan   +4 more
doaj   +1 more source

Implicitly-weighted total least squares

open access: yesLinear Algebra and its Applications, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Park, Sungwoo, O’Leary, Dianne P.
openaire   +2 more sources

Scaled weighted total least-squares adjustment for partial errors-in-variables model

open access: yesJournal of Geodetic Science, 2016
Scaled total least-squares (STLS) unify LS, Data LS, and TLS with a different choice of scaled parameter. The function of the scaled parameter is to balance the effect of random error of coefficient matrix and observation vector for the estimate of ...
Zhao J.
doaj   +1 more source

The effects of infrastructure and public investment on the elasticity of private investment: an empirical investigation for Brazil [PDF]

open access: yesBrazilian Journal of Political Economy, 2023
This study estimates the determinants of the elasticities of private investment and total investment for the Brazilian economy for the period between 1960 and 2013.
JEFFERSON S. FRAGA   +1 more
doaj   +1 more source

Dataset of diatom abundances and diatom-inferred total phosphorus and electrical conductivity for Lake Tavatui (Middle Urals, Russi) over the last 11.7 cal ka BP

open access: yesData in Brief, 2022
This paper presents the diatom data on Holocene sediments of Lake Tavatui (Middle Urals, Russia). The dataset includes abundances of 160 diatom taxa and quantitative reconstructions of total phosphorus and electrical conductivity of lake water through ...
A.V. Maslennikova
doaj   +1 more source

Bearing-only target localization with uncertainties in observer position [PDF]

open access: yes, 2010
In this paper, the bearing-only target localization problem when the observer positions are subject to error is investigated. In this problem, the angle of arrival of the transmitted signal between target and observer are used to estimate the target ...
Gholami, Mohammad Reza   +2 more
core   +1 more source

Development of Douglas fir merchantable stem volume model in the conditions of the Czech Republic

open access: yesJournal of Forest Science, 2023
A precise merchantable stem volume model of Douglas fir [Pseudotsuga menziesii (Mirb.) Franco] is missing in the Czech Republic. The aim of this study was to fit a new model through the reparametrization of volume equations (used in the Czech Republic or
Radoslav Hlavica, Zdeněk Adamec
doaj   +1 more source

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