Sökning: "EM algorithm"
Visar resultat 1 - 5 av 55 avhandlingar innehållade orden EM algorithm.
1. Background aEEG/EEG measures in very preterm infants : Relation to physiology and outcome
Sammanfattning : The overall aim of this thesis was to characterize single-channel aEEG/EEG, recorded during the first postnatal days in preterm infants, in relation to brain function and two-year outcome. Study I investigated if aEEG/EEG was associated with neonatal brain injury, inflammation and outcome in 16 very preterm (VPT) infants. LÄS MER
2. System Identification with Multi-Step Least-Squares Methods
Sammanfattning : The purpose of system identification is to build mathematical models for dynam-ical systems from experimental data. With the current increase in complexity of engineering systems, an important challenge is to develop accurate and computa-tionally simple algorithms, which can be applied in a large variety of settings. LÄS MER
3. On perfect simulation and EM estimation
Sammanfattning : Perfect simulation and the EM algorithm are the main topics in this thesis. In paper I, we present coupling from the past (CFTP) algorithms that generate perfectly distributed samples from the multi-type Widom--Rowlin-son (W--R) model and some generalizations of it. LÄS MER
4. EM Estimation in Phase Type Models
Sammanfattning : This thesis consists of four articles whose theme in common is the class of phase type distributions. In the first article an EM algorithm is presented to estimate the parameters of a phase type distribution of fixed order. Also, it is shown that the algorithm can be used to approximate other continuous distributions by phase type distributions. LÄS MER
5. Estimation of Wood Fibre Length Distributions with Data from Increment Cores
Sammanfattning : .... LÄS MER