Search for dissertations about: "Variance components"

Showing result 16 - 20 of 90 swedish dissertations containing the words Variance components.

  2. 16. Genetic epidemiological approaches to the study of risk factors for cardiovascular diseases

    Author : Anastasia Iliadou; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Twins; cardiovascular diseases; lipids; apolipoproteins; blood pressure; obesity; diabetes mellitus; genetic and environmental components; linkage; association; genetics; epidemiology.;

    Abstract : Cardiovascular disease (CVD) is one of the most common causes of death in most developed countries. Genetic and environmental factors influence CVD and its risk factors in a complex fashion. Parallel to this, new statistical methods are being developed to make use of the new molecular genetic information. READ MORE

  4. 17. Analysis of factorial experiments using mixed-effects models: options for estimation, prediction and inference

    Author : Razaw Al-Sarraj; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : In linear mixed-effects modelling of experiments, estimation of variance components, prediction of random effects, and computation of denominator degrees of freedom associated with inference on fixed effects, are important elements of the analysis. This thesis investigates alternatives to the likelihoodbased procedures for analysis of factorial experiments with normally distributed observations. READ MORE

  5. 18. Varince component estimation in geodetic networks

    Author : Tomas Egeltoft; Lars Sjöberg; []
    Keywords : ;

    Abstract : A summary of some of the existing variance component estimators are given, namely the MINQE, the IMINQ, the general case of BQUNE (best Quardratic Unbiased Non negative Estimator), the Helmert estimators, the Förstner estimator and the Kubik estimator. A derivation of a special case of the BQUNE is made. READ MORE

  6. 19. Empirical Essays on Earnings Inequality

    Author : Magnus Gustavsson; Per-Anders Edin; Stephen P. Jenkins; Uppsala universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Economics; Earnings inequality; Human capital; Panel data; Nationalekonomi; Economics; Nationalekonomi; nationalekonomi; Economics;

    Abstract : The thesis consists of four self-contained essays.Essay I decomposes the cross-sectional variance of male annual earnings in Sweden between 1960 and 1990 into permanent and transitory components and compares the results to the U.S. evidence. READ MORE

  7. 20. Optimal Segmentation of Linear Regression Parameters

    Author : Fredrik Gustafsson; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : The problem of detecting multiple changes in the dynamical properties of a measured signal, which we call segmentation, is studied. A Bayesian model-based approach is used. The signal is supposed to be described by a linear regression. The posterior distribution for the change instants is first derived for a quite general signal model. READ MORE