Sökning: "Monte Carlo"

Visar resultat 1 - 5 av 779 avhandlingar innehållade orden Monte Carlo.

  1. 1. Semi Markov chain Monte Carlo

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Håkan Ljung; [1999]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mathematics; Adaptive simulation; error-in-the-variables; Kullback-Leibler divergence; Markov chain simulation; Markov chain Monte Carlo; semi-regenerative; MATEMATIK; MATHEMATICS; MATEMATIK; matematisk statistik; Mathematical Statistics;

    Sammanfattning : The first paper introduces a new simulation technique, called semi Markov chain Monte Carlo, suitable for estimating the expectation of a fixed function over a distribution π, Eπf(χ). Given a Markov chain with stationary distribution p, for example a Markov chain corresponding to a Markov chain Monte Carlo algorithm, an embedded Markov renewal process is used to divide the trajectory into different parts. LÄS MER

  3. 2. Monte Carlo Studies of Charge Transport Below the Mobility Edge

    Detta är en avhandling från Linköping : Linköping University Electronic Press

    Författare :Mattias Jakobsson; Sven Stafström; Patrick Norman; Jérôme Cornil; [2012]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Monte Carlo simulation; charge transport; organic materials; conjugated polymers; DNA;

    Sammanfattning : Charge transport below the mobility edge, where the charge carriers are hopping between localized electronic states, is the dominant charge transport mechanism in a wide range of disordered materials. This type of incoherent charge transport is fundamentally different from the coherent charge transport in ordered crystalline materials. LÄS MER

  4. 3. Development of New Monte Carlo Methods in Reactor Physics Criticality, Non-Linear Steady-State and Burnup Problems

    Detta är en avhandling från Stockholm : Universitetsservice US AB

    Författare :Jan Dufek; Jan Wallenius; Waclaw Gudowski; Cheikh Diop; [2009]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Monte Carlo; reactor physics; fission source; inactive cycles; convergence; burnup; steady-state; criticality; eigenvalue; NATURAL SCIENCES Physics Nuclear physics; NATURVETENSKAP Fysik Kärnfysik;

    Sammanfattning : The Monte Carlo method is, practically, the only approach capable of giving detail insight into complex neutron transport problems. In reactor physics, the method has been used mainly for determining the keff in criticality calculations. LÄS MER

  5. 4. Charge Transport Simulations for Organic Electronics A Kinetic Monte Carlo Approach

    Detta är en avhandling från Linköping : Linköping University Electronic Press

    Författare :Riccardo Volpi; Mathieu Linares; Sven Stafström; Martijn Kemerink; [2015]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : In this thesis we focus on the modelling and simulation of organic electronic devices, investigating their structural and electronic properties. Organic devices have attracted great interest for their innovative properties, but their functioning still represent a theoretical and technological challenge. LÄS MER

  7. 5. On Bayesian graphical model determination

    Detta är en avhandling från Stockholm : Statistiska institutionen

    Författare :Jukka Corander; Carlo Berzuini; [2000]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Bayesian inference; Entropy; Exponential models; Graphical models; Logarithmic utility; SOCIAL SCIENCES Statistics; computer and systems science Statistics; SAMHÄLLSVETENSKAP Statistik; data- och systemvetenskap Statistik; statistik; Statistics;

    Sammanfattning : A graphical model specifies a graph representation of the independence structure of a multivariate distribution, where nodes represent variables and edges association between variables.This thesis introduces methodology for determination of graphical models for multivariate distributions within the exponential family. LÄS MER