Doctoral Degrees (Statistics and Actuarial Science)

SUNScholar Research Repository

Doctoral Degrees (Statistics and Actuarial Science)

 

Recent Submissions

  • Muller, Christoffel Joseph Brand (Stellenbosch : Stellenbosch University, 2012-12)
    ENGLISH ABSTRACT: Multi-state models are used in this dissertation to model panel data, also known as longitudinal or cross-sectional time-series data. These are data sets which include units that are observed across two ...
  • Ranganai, Edmore (Stellenbosch : Stellenbosch University, 2007-03)
    ENGLISH ABSTRACT: It is well known that ordinary least squares (OLS) procedures are sensitive to deviations from the classical Gaussian assumptions (outliers) as well as data aberrations in the design space. The two major ...
  • Kpanzou, Tchilabalo Abozou (Stellenbosch : Stellenbosch University, 2011-12)
    ENGLISH ABSTRACT: Measures of inequality, also used as measures of concentration or diversity, are very popular in economics and especially in measuring the inequality in income or wealth within a population and ...
  • Berning, Thomas Louw (Stellenbosch : University of Stellenbosch, 2010-12)
    ENGLISH ABSTRACT: In extreme value theory (EVT) the emphasis is on extreme (very small or very large) observations. The crucial parameter when making inferences about extreme quantiles, is called the extreme value index ...
  • Lamont, Morne Michael Connell (Stellenbosch : Stellenbosch University, 2008-12)
    Kernel Fisher discriminant analysis (KFDA) is a kernel-based technique that can be used to classify observations of unknown origin into predefined groups. Basically, KFDA can be viewed as a non-linear extension of Fisher’s ...
  • Oosthuizen, Surette (Stellenbosch : University of Stellenbosch, 2008-03)
    The problem of variable selection in binary kernel classification is addressed in this thesis. Kernel methods are fairly recent additions to the statistical toolbox, having originated approximately two decades ago in ...
  • Kroon, Rodney Stephen (Stellenbosch : Stellenbosch University, 2008-03)
    We consider the problem of model assessment by risk estimation. Various approaches to risk estimation are considered in a uni ed framework. This a discussion of various complexity dimensions and approaches to obtaining bounds ...
  • Jankowitz, Maria Dorothea (Stellenbosch : University of Stellenbosch, 2007-12)
    The smoothing of time series plays a very important role in various practical applications. Estimating the signal and removing the noise is the main goal of smoothing. Traditionally linear smoothers were used, but nonlinear ...