Sökning: "Anna Gibbs"

Hittade 3 avhandlingar innehållade orden Anna Gibbs.

  1. 1. In situ characterization of immune cells mediating potential control of HIV infection in the female genital mucosa

    Författare :Anna Gibbs; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Heterosexual HIV transmission is the most common viral transmission route, worldwide, where young women are more susceptible to HIV infection than men. To establish a persistent infection the virus needs to cross the mucosal surface of the female genital tract (FGT). LÄS MER

  3. 2. Sequential Monte Carlo methods for conjugate state-space models

    Författare :Anna Wigren; Fredrik Lindsten; Lawrence Murray; Riccardo Sven Risuleo; Simon Maskell; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Sequential Monte Carlo; Particle filter; Markov chain Monte Carlo; Conjugacy; State-space model; Probabilistic programming; Electrical Engineering with specialization in Signal Processing; Elektroteknik med inriktning mot signalbehandling;

    Sammanfattning : Bayesian inference in state-space models requires the solution of high-dimensional integrals, which is intractable in general. A viable alternative is to use sample-based methods, like sequential Monte Carlo, but this introduces variance into the inferred quantities that can sometimes render the estimates useless. LÄS MER

  4. 3. Exploiting conjugacy in state-space models with sequential Monte Carlo

    Författare :Anna Wigren; Fredrik Lindsten; Umberto Picchini; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Electrical Engineering with specialization in Signal Processing; Elektroteknik med inriktning mot signalbehandling;

    Sammanfattning : Many processes we encounter in our daily lives are dynamical systems that can be described mathematically using state-space models. Exact inference of both states and parameters in these models is, in general, intractable. LÄS MER