Sökning: "Matematisk statistik"

Visar resultat 11 - 15 av 381 avhandlingar innehållade orden Matematisk statistik.

  1. 11. Existence and convergence of moments of Student’s t-statistic

    Författare :Fredrik Jonsson; Allan Gut; Lennart Bondesson; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mathematical statistics; Matematisk statistik; Mathematics; Matematik;

    Sammanfattning : .... LÄS MER

  3. 12. Rank Estimation in Elliptical Models : Estimation of Structured Rank Covariance Matrices and Asymptotics for Heteroscedastic Linear Regression

    Författare :Kristi Kuljus; Silvelyn Zwanzig; Dietrich von Rosen; Jana Jureckova; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; elliptical distributions; multivariate ranks; rank covariance matrix; linear rank regression; heteroscedastic errors; linear rank statistics; Mathematical statistics; Matematisk statistik;

    Sammanfattning : This thesis deals with univariate and multivariate rank methods in making statistical inference. It is assumed that the underlying distributions belong to the class of elliptical distributions. LÄS MER

  4. 13. Stochastic Modeling and Simulation of the TCP protocol

    Författare :Jörgen Olsén; Ingemar Kaj; Joachim Charzinski; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mathematical statistics; TCP; flow-control; network simulator; ns-2; stochastic modeling; throughput; packet loss rate; fixed-point method; Matematisk statistik; Mathematical statistics; Matematisk statistik;

    Sammanfattning : The success of the current Internet relies to a large extent on a cooperation between the users and the network. The network signals its current state to the users by marking or dropping packets. The users then strive to maximize the sending rate without causing network congestion. LÄS MER

  5. 14. Recursive Methods in Urn Models and First-Passage Percolation

    Författare :Henrik Renlund; Sven Erick Alm; Svante Janson; John Wierman; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; stochastic approximation algorithm; generalized Polya urn; limit theorem; first-passage percolation; rate of percolation; time constant; Mathematical statistics; Matematisk statistik; Mathematical Statistics; Matematisk statistik;

    Sammanfattning : This PhD thesis consists of a summary and four papers which deal with stochastic approximation algorithms and first-passage percolation. Paper I deals with the a.s. limiting properties of bounded stochastic approximation algorithms in relation to the equilibrium points of the drift function. LÄS MER

  7. 15. Estimation of the reliability of systems described by the Daniels Load-Sharing Model

    Författare :Patrik Rydén; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Non-parametric and parametric estimation; Equal Load-sharing models; asymptotic distribution; martingale; resam-pling; life testing; reliability; Mathematical statistics; Matematisk statistik;

    Sammanfattning : We consider the problem of estimating the failure stresses of bundles (i.e. the tensile forces that destroy the bundles), constructed of several statisti-cally similar fibres, given a particular kind of censored data. LÄS MER