Browsing Statistics by Title
Now showing items 120 of 72

Analysis of a binary response : an application to entrepreneurship success in South Sudan.
(2012)Just over half (50:6%) of the population of South Sudan lives on less than one US Dollar a day. Three quarters of the population live below the poverty line (NBS, Poverty Report, 2010). Generally, effective government ... 
Analysis of longitudinal binary data : an application to a disease process.
(2008)The analysis of longitudinal binary data can be undertaken using any of the three families of models namely, marginal, random effects and conditional models. Each family of models has its own respective merits and demerits. ... 
Analysis of timetoevent data including frailty modeling.
(2006)There are several methods of analysing timetoevent data. These include nonparametric approaches such as KaplanMeier estimation and parametric approaches such as regression modeling. Parametric regression modeling ... 
The application of classification techniques in modelling credit risk.
(20150904)The aim of this dissertation is to examine the use of classification techniques to model credit risk through a practice known as credit scoring. In particular, the focus is on one parametric class of classification techniques ... 
The application of multistate Markov models to HIV disease progression.
(2011)Survival analysis is a well developed area which explores time to single event analysis. In some cases, however, such methods may not adequately capture the disease process as the disease progression may involve ... 

Application of statistical multivariate techniques to wood quality data.
(2010)Sappi is one of the leading producer and supplier of Eucalyptus pulp to the world market. It is also a great contributor to South Africa economy in terms of employment opportunity to the rural people through its large ... 
Application of survival analysis methods to study underfive child mortality in Uganda.
(20131212)Infant and child mortality rates are one of the health indicators in a given community or country. It is the fourth millennium development goal that by 2015, all the united nations member countries are expected to have ... 
Applications of Levy processes in finance.
(2009)The option pricing theory set forth by Black and Scholes assumes that the underlying asset can be modeled by Geometric Brownian motion, with the Brownian motion being the driving force of uncertainty. Recent empirical studies, ... 
Aspects of categorical data analysis.
(1998)The purpose of this study is to investigate and understand data which are grouped into categories. At the onset, the study presents a review of early research contributions and controversies surrounding categorical data ... 
Bayesian hierarchical spatial and spatiotemporal modeling and mapping of tuberculosis in Kenya.
(20131220)Global spread of infectious disease threatens the wellbeing of human, domestic, and wildlife health. A proper understanding of global distribution of these diseases is an important part of disease management and policy ... 
Bayesian spatial models with application to HIV, TB and STI modeling in Kenya.
(20150206)This dissertation is concerned with developing and extending statistical models in the area of spatial modeling with particular interest towards application to HIV, TB and HSV2 data. Hierarchical spatial modeling is a ... 
Combining dynamic factor models and artificial neural networks in time series forecasting with applications.
(2014)This study investigates and examines the advantages and forecasting performance of combining the dynamic factor model (DFM) and artificial neural networks (ANNs) leading to new novel models that have capabilities to produce ... 
Comparative approaches to handling missing data, with particular focus on multiple imputation for both crosssectional and longitudinal models.
(2012)Much databased research are characterized by the unavoidable problem of incompleteness as a result of missing or erroneous values. This thesis discusses some of the various strategies and basic issues in statistical ... 
Completion of an incomplete market by quadratic variation assets.
(2011)It is well known that the general geometric L´evy market models are incomplete, except for the geometric Brownian and the geometric Poissonian, but such a market can be completed by enlarging it with powerjump assets ... 
A complex survey data analysis of TB and HIV mortality in South Africa.
(2012)Many countries in the world record annual summary statistics such as economic indicators like Gross Domestic Product (GDP) and vital statistics for example the number of births and deaths. In this thesis we focus on mortality ... 
Covariates and latents in growth modelling.
(20150107)The growth curve models are the natural models for the increment processes taking place gradually over time. When individuals are observed over time it is often apparent that they grow at different rates, even though ... 
Doptimal designs for drug synergy.
(2009)This thesis is fo cused on the construction of optimal designs for detecting drug interaction using the twovariable binary logistic mo del. Two sp eci c mo dels are considered: (1) the binary twovariable logistic mo del ... 
Estimating risk determinants of HIV and TB in South Africa.
(2009)Where HIV/AIDS has had its greatest adverse impact is on TB. People with TB that are infected with HIV are at increased risk of dying from TB than HIV. TB is the leading cause of death in HIV individuals in South Africa. ... 
Estimating the force of infection from prevalence data : infectious disease modelling.
(2013)By knowing the incidence of an infectious disease, we can ascertain the high risk factors of the disease as well as the e ectiveness of awareness programmes and treatment strategies. Since the work of Hugo Muench in 1934, ...