Results 141 to 150 of about 661 (172)

MINQUE of Variance-Covariance Components in Linear Gauss-Markov Models

Journal of Surveying Engineering, 2011
For heterogeneous and correlated observations, the variance components and the covariance components sometimes must be estimated. The forms of best invariant quadratic unbiased estimate (BIQUE) and Helmert-type estimation of variance and covariance components have already been derived by Koch and Grafarend, respectively.
Junhuan Peng, Shi Yun, Shuhui Li, Honglei Yang   +3 more
semanticscholar   +2 more sources

Estimating variance components in hiearchical structures using minque and restricted maximum livelihood

Communications in Statistics - Theory and Methods, 1978
Francis G Giesbrecht
exaly   +2 more sources

Some Results on the Estimation of Variance Components by MINQUE

Journal of the American Statistical Association, 1974
Abstract A specific solution is derived to an optimization problem posed in the general theory of C.R. Rao for the estimation of variance components. A class of MINQUE estimators of variance components is derived by considering the residuals from a weighted least squares analysis.
R. Pringle
semanticscholar   +2 more sources

Estimation and Test of Varience Components Using the MINQUE-Method

Statistics, 1985
It is shown in this paper that the central problem of the computation of MINQUE for general ANOVA-models is the computation of certain linear forms, which are characterized as the predictors of the random effects. An efficient algorithm for computing these linear forms is presented.
B. Seifert
semanticscholar   +3 more sources

Zur anwendung der schätzmethode minque auf probleme der prozeβbilanzierung

Mathematische Operationsforschung und Statistik, 1973
The recently developped theory of MINQUE and r-MINQUE estimators is applied to a special class of probleii-1s arising for example in the chamical industry if a certain mea-suring arrangement is recovered repeatedly by values. From the mathematical point of view, the question concerns compensation problems where, however, the weights are unkniiwn in ...
G. Deweß
semanticscholar   +3 more sources

On the role of minque in testing of hypotheses under hiked linear models

Communications in Statistics - Theory and Methods, 1988
Testing of hypotheses under balanced ANOVA models is fairly simple and generally based on the usual ANOVA sums of squares. Difficulties may arise in special cases when these sums of squares do not form a complete sufficient statistic. There is a huge literature on this subject which was recently surveyed in Seifert's contribution to the book of Mumak ...
J. Kleffe
semanticscholar   +2 more sources

Computable MINQUE-Type Estimates of Variance Components

Journal of the American Statistical Association, 1987
Abstract The minimum norm quadratic unbiased estimator type (MINQUE type) of estimates considered in this article are obtained by requiring identical values for the ratios of the a priori variances to the a priori error variance and letting this common value tend to infinity.
P. Westfall
semanticscholar   +2 more sources

A note on the edgeworth-expansion for minque

Statistics, 1992
The model under consideration is the general variance components model We establish Edgeworth-expansions for C. R. Rao's MINQUE for the variance components The tool is a theorem on Edgeworth-expansions for quadratic forms in normally distributed random vectors.
H. Schmidt Wolfgang, Telton Günter
exaly   +2 more sources

C. R. Rao’s MINQUE for Replicated and Multivariate Observations

, 1980
Assuming a basic variance-covariance components model we derive C. R. Rao’s MINQUE for its m-fold replicated and its multivariate version. Both extensions do not essentially increase the extent of necessary calculations and our formula for replicated observations gives some new light on the asymptotic behaviour of MINQUE.
J. Kleffe
semanticscholar   +2 more sources

THE ESTIMATION OF VARIANCE AND COVARIANCE COMPONENTS FOR GPS BASELINE NETWORK BY MINQUE METHOD

Geo-Spatial Information Science, 1998
This paper studies the estimation of variance and covariance components for GPS baseline network by MINQUE method. The fundamental rule for selecting variance-covariance model has been presented, and the alternative algorithm which simultaneouly estimates fixed variance components and scalled variance components of the distance, azimuth and geodetic ...
Wang Xinzhou, Liu Jingnan
exaly   +2 more sources