Results 1 to 10 of about 7,497,671 (218)
Efficient variance components analysis across millions of genomes
Nature Communications, 2020 Variance components analysis may be used for a variety of applications including heritability estimation and association mapping. Here, the authors present a computationally efficient method, scalable to extremely large GWAS datasets, and use it for ...
Ali Pazokitoroudi +6 more
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The Ratio of Variances in a Variance Components Model [PDF]
The Annals of Mathematical Statistics, 1955 1. The general incomplete block variance components model. Suppose that yij for i = 1, * ,u, and j = 1, * ,b are independent and normal for given ti I., I tu with means E(yij I t) = nij(ti + bj) and v-ariance a2.
William A. Thompson
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On quadratic estimates of variance components
The Annals of Mathematical Statistics, 1952 In this paper quadratic estimates of variance components are considered. For the general balanced nested classification with no specific distributions assumed, it is shown that the quadratic estimate which is unbiased and which has minimum variance is given by the analysis of variance method of estimating the variance components.
Franklin A. Graybill
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Genetics Selection Evolution, 2010 Background The sensitivity to microenvironmental changes varies among animals and may be under genetic control. It is essential to take this element into account when aiming at breeding robust farm animals.
Fikse Freddy +4 more
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Minimum variance quadratic unbiased estimation of variance components
Journal of Multivariate Analysis, 1971 AbstractThe variance of a quadratic function of the random variables in a linear model is minimized to obtain locally best unbiased estimators (MIVQUE) of variance components. Condition for such estimators to be independent of the kurtosis of the variables is given.
C. Radhakrishna Rao
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On the estimation of genetic parameters via variance components [PDF]
Genetics Selection Evolution, 1983 Schneeberger M, Hagger C, Dempfle L
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On the Correlation between Random Variables and their Principal Components [PDF]
Zeszyty Naukowe Warszawskiej Wyższej Szkoły Informatyki, 2023 The article attempts to find an algebraic formula describing the correlation coefficients between random variables and the principal components representing them.
Zenon Gniazdowski
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A link function approach to heterogeneous variance components [PDF]
Genetics Selection Evolution, 1998 d'Arnoldi Caroline +2 more
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Estimators and tests for variance components in cross nested orthogonal designs
Discussiones Mathematicae Probability and Statistics, 2023 Explicit expressions of UMVUE for variance components are obtained for a class of models that include balanced cross nested random models. These estimators are used to derive tests for the nullity of variance components.
M. Fonseca, J. Mexia, R. Zmyślony
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Watermark Embedding Scheme with Variance of Chromatic Components
Engineering Proceedings, 2023 This paper contains the idea of inserting a watermark with the variance of color components of the image. The color image is converted into CIE color space.
Dur-e-Jabeen +5 more
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