Results 41 to 50 of about 23,412 (229)

A Blended Sea Ice Concentration Product from AMSR2 and VIIRS

open access: yesRemote Sensing, 2021
An effective blended Sea-Ice Concentration (SIC) product has been developed that utilizes ice concentrations from passive microwave and visible/infrared satellite instruments, specifically the Advanced Microwave Scanning Radiometer-2 (AMSR2) and the ...
Richard Dworak   +3 more
doaj   +1 more source

The equality between linear transforms of ordinary least squares and best linear unbiased estimator [PDF]

open access: yes, 1998
The best linear unbiased estimator BLUE (CXb) of a linear transform CX b in the general Gauss-Markov model (y, E (y) = X b Cov (y) =a2v) is the linear transform C BLUE (Xb) of the best linear unbiased estimator BLUE (Xb) of Xb.
Groß, Jürgen, Trenkler, Götz
core  

Developing Best Linear Unbiased Estimator In Finite Population Accounting For Measurement Error Due To Interviewer

open access: yes, 2010
Godambe (1955) give a general finite population sampling model and proved that a best linear unbiased estimator (BLUE) of population total does not exist when there is no measurement error.
Zhang, Ruitao
core   +1 more source

Comparison of estimators of variance for forest inventories with systematic sampling - results from artificial populations

open access: yesForest Ecosystems, 2020
Background Large area forest inventories often use regular grids (with a single random start) of sample locations to ensure a uniform sampling intensity across the space of the surveyed populations.
Steen Magnussen   +6 more
doaj   +1 more source

GEOGRAPHY MATTERS IN ONLINE HOTEL REVIEWS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
In resonance with the popularity of user-generated contents (UGC) and the volunteered geographic information (VGI), this study crowdsourced 77,098 hotel reviews of 220 hotels provided by U.S. reviewers in the city of San Francisco, 2002 to 2015.
M. Wang, X. Zhou
doaj   +1 more source

Bootstrap for estimating the mean squared error of the spatial EBLUP [PDF]

open access: yes, 2007
This work assumes that the small area quantities of interest follow a Fay-Herriot model with spatially correlated random area effects. Under this model, parametric and nonparametric bootstrap procedures are proposed for estimating the mean squared ...
MOLINA ISABEL   +6 more
core  

Best Linear Unbiased Estimators for Repeated Surveys

open access: yesJournal of the Royal Statistical Society Series B: Statistical Methodology, 1980
Summary Recent work on the problem of obtaining best linear unbiased estimators from a sample survey which is repeated on several occasions has centred on the effects of extending the model assumptions to allow for stochastic variation in the parameters being estimated.
openaire   +2 more sources

Constrained Best Linear Unbiased Estimation

open access: yes, 2017
The least squares (LS) estimator and the best linear unbiased estimator (BLUE) are two well-studied approaches for the estimation of a deterministic but unknown parameter vector. In many applications it is known that the parameter vector fulfills some constraints, e.g., linear constraints.
Lang, Oliver   +2 more
openaire   +2 more sources

Ordered extreme ranked set sampling and its application in parametric estimation [PDF]

open access: yesJournal of Statistical Theory and Applications (JSTA), 2016
Ranked set sampling (RSS) is applicable whenever ranking of a set of sampling units can be done easily by a judgment method or based on the measurement of an auxiliary variable which can be measured easily.
Manoj Chacko
doaj   +1 more source

Comparison of quantile regression and censored quantile regression methods in the case of chicken consumption

open access: yesDesimal, 2023
The censored quantile regression method is a parameter estimation method that can be used to overcome censored data and BLUE (Best Linear Unbiased Estimator) assumptions that are not met.
Sarmada Sarmada   +2 more
doaj   +1 more source

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