Sökning: "markov"

Visar resultat 21 - 25 av 430 uppsatser innehållade ordet markov.

  1. 21. Improving Dependability of Space-Cloud Payload Processor by Storage System

    Master-uppsats, Mälardalens universitet/Akademin för innovation, design och teknik

    Författare :Hassan Said; Stephanie Liza Johansson; [2023]
    Nyckelord :Fault tolerant; Markov analysis; Onboard processing; SSD array architecture; SSD; EDAC; RAID; Hamming code; Reed Solomon; Dependability evaluation; File systems; ZFS; Ext4.;

    Sammanfattning : Due to the usage of complicated platforms and current high-performance space computing technology, onboard processing in small satellites is expanding. Space-cloud payload processors with Commercial Off-The-Shelf (COTS) components, that are required to be radiation-tolerant, are used to perform the onboard processing. LÄS MER

  3. 22. Reconstruction of Fire Spread with a Markov Random Field Mixture Model

    Master-uppsats, Lunds universitet/Matematisk statistik

    Författare :Marcus Gehrmann; [2023]
    Nyckelord :Forest fire; fire scars; spatial statistics; Markov random field; EM-algorithm; pseudo-likelihood; Mathematics and Statistics;

    Sammanfattning : This thesis revolves around reconstructing fire sizes for historical fires in Jämtgaveln, Sweden based on data of fire scars in trees. We propose a Hidden Markov Model (HMM), where the domain is divided into quadratic grid cells of 250 $\times$ 250 m and with these grid cells we associate a binary Markov random field taking values 0 or 1 corresponding to no fire and fire respectively. LÄS MER

  4. 23. Den historiskt bästa Formel-1 föraren

    Kandidat-uppsats, Lunds universitet/Statistiska institutionen

    Författare :Claes Croneborg; Viktor Sjöberg; [2023]
    Nyckelord :Formula One; Multilevel-Model; Beta-Regression; Bayesian Estimation; Monte-Carlo simulation; Markov Chain; Statistics.; Business and Economics; Mathematics and Statistics;

    Sammanfattning : It is difficult to definitively say who the greatest Formula One driver is. It is a subjective assessment and can depend on a variety of factors, including the driver’s skill, their results and accomplishments, their team and car, and the era in which they competed. LÄS MER

  5. 24. Random Edge is not faster than Random Facet on Linear Programs

    Master-uppsats, KTH/Matematik (Avd.)

    Författare :Nicole Hedblom; [2023]
    Nyckelord :Simplex method; simplex; Random Edge; Linear Programming; Random Facet; randomized pivoting rule; Markov decision process; Simplexmetoden; Random Edge; linjärprogrammering; Random Facet; Markov-beslutsprocess;

    Sammanfattning : A Linear Program is a problem where the goal is to maximize a linear function subject to a set of linear inequalities. Geometrically, this can be rephrased as finding the highest point on a polyhedron. The Simplex method is a commonly used algorithm to solve Linear Programs. LÄS MER

  7. 25. Analysing Regime-Switching and Cointegration with Hamiltonian Monte Carlo

    Master-uppsats, Uppsala universitet/Statistiska institutionen

    Författare :Jakob Brandt; [2023]
    Nyckelord :Time Series Econometrics; Regime-Switching; Cointegration; Markov Chain Monte Carlo; Hamiltonian Monte Carlo;

    Sammanfattning : The statistical analysis of cointegration is crucial for inferring shared stochastic trends between variables and is an important area of Econometrics for analyzing long-term equilibriums in the economy. Bayesian inference of cointegration involves the identification of cointegrating vectors that are determined up to arbitrary linear combinations, for which the Gibbs sampler is often used to simulate draws from the posterior distribution. LÄS MER