Sökning: "hidden Markov models"
Visar resultat 16 - 20 av 69 avhandlingar innehållade orden hidden Markov models.
16. Timing and Schedulability Analysis of Real-Time Systems using Hidden Markov Models
Sammanfattning : In real-time systems functional requirements are coupled to timing requirements, a specified event needs to occur at the appropriate time. In order to ensure that timing requirements are fulfilled, there are two main approaches, static and measurement-based. LÄS MER
17. On particle-based online smoothing and parameter inference in general hidden Markov models
Sammanfattning : This thesis consists of two papers studying online inference in general hidden Markov models using sequential Monte Carlo methods.The first paper present an novel algorithm, the particle-based, rapid incremental smoother (PaRIS), aimed at efficiently perform online approximation of smoothed expectations of additive state functionals in general hidden Markov models. LÄS MER
18. Statistical methods in medical image estimation and sparse signal recovery
Sammanfattning : This thesis presents work on methods for the estimation of computed tomography (CT) images from magnetic resonance (MR) images for a number of diagnostic and therapeutic workflows. The study also demonstrates sparse signal recovery method, which is an intermediate method for magnetic resonance image reconstruction. LÄS MER
19. Bayesian Modeling of Directional Data with Acoustic and Other Applications
Sammanfattning : A direction is defined here as a multi-dimensional unit vector. Such unitvectors form directional data. Closely related to directional data are axialdata for which each direction is equivalent to the opposite direction.Directional data and axial data arise in various fields of science. LÄS MER
20. Derivative Prices for Models using Levy Processes and Markov Switching
Sammanfattning : This thesis contributes to mathematics, finance and computer simulations. In terms of mathematics this thesis concerns applied probability and Lévy processes and from the financial point of view the thesis concerns derivative pricing. Within these two areas several simulation techniques are investigated. The thesis is organized as follows. LÄS MER