Browsing Theses and Dissertations (Statistics) by Issue Date

Browsing Theses and Dissertations (Statistics) by Issue Date

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  • De Koster, Felicia Henriette (University of Pretoria, 2006-11-20)
    Please read the abstract in the section 00front of this document Accompanied by 1 disc available at main counter with shelf number EM 519.5 DE KOSTER. Master copy at back of book
  • Du Plessis, K (University of Pretoria, 2007-02-23)
    The analysis of a time series is a problem well known to statisticians. Neural networks form the basis of an entirely non-linear approach to the analysis of time series. It has been widely used in pattern recognition, ...
  • Setlhare, Keamogetse (University of Pretoria, 2007-06-18)
    An attempt is made in this thesis to study the optimization and estimation of stochastic models of manpower systems incorporating one or more of the following aspects: (i) recruitment, (ii) promotion, (iii) training and ...
  • Pietersen, Jacobus Johannes (University of Pretoria, 2007-12-20)
    The theory of ordinary factor analysis and its application by means of software packages do not make provision for data sampled from populations with hierarchical structures. Since data are often obtained from such populations ...
  • Matshego, James Moeng (University of Pretoria, 2008-08-11)
    Variable selection refers to the problem of selecting input variables that are most predictive of a given outcome. Variable selection problems are found in all machine learning tasks, supervised or unsupervised, classification, ...
  • Human, Schalk William (University of Pretoria, 2009-08-12)
    Please read the abstract in the section front of this document
  • Labeodan, Moremi Morire OreOluwapo (University of Pretoria, 2009-10-29)
    In this thesis, some issues about the human immunodeficiency virus (HIV) and acquired immunodeficiency syndrome (AIDS) have been addressed by concentrating on the stochastic modelling of the dynamics of the viruses. The ...
  • Uys, Eben (University of Pretoria, 2010-09-22)
    Neural networks are seldom used as a modelling tool by statisticians. This is often due to the lack of knowledge in the eld of neural networks as neural networks are frequently perceived as mysterious methods that evolved ...
  • Bodvin, Joanna Sylvia Liesbeth (University of Pretoria, 2010-09-22)
    Having just survived what is arguably the worst financial crisis in time, it is expected that the focus on regulatory capital held by financial institutions such as banks will increase significantly over the next few years. ...
  • Smit, Ansie (University of Pretoria, 2010-10-27)
    In the early 1950s the study on how to determine true ore-grade distributions in the mining sector, sparked the development of a series of statistical tools that specifically allows for spatial and subsequently spatial-temporal ...
  • Crafford, Gretel (University of Pretoria, 2011-02-24)
    The maximum likelihood (ML) estimation procedure of Matthews and Crowther (1995: A maximum likelihood estimation procedure when modelling in terms of constraints. South African Statistical Journal, 29, 29-51) is utilized ...
  • Graham, Marien Alet (University of Pretoria, 2011-02-24)
    Statistical quality control charts originated in the late 1920’s by Shewhart (1926, 1931 and 1939). Their applications in various disciplines have been ever-increasing. Although most control charts are distribution-based, ...
  • Marais, Christiaan Antonie (University of Pretoria, 2011-05-25)
    There exists a need to estimate the potential financial, epidemiological and societal impact that diseases, and the treatment thereof, can have on society. Markov processes are often used to model diseases to estimate these ...
  • Loots, Mattheus Theodor (University of Pretoria, 2011-06-28)
    In this dissertation an overview on the real representation of quaternions in distribution theory is given. The density functions of the p-variate and matrix-variate quaternion normal distributions are derived from first ...
  • Thiebaut, Nicolene Magrietha (University of Pretoria, 2011-08-11)
    In practice, when one has many candidate variables as explanatory variables in multiple regression, there is always the possibility that variables that are important determinants of the response variable might be omitted ...
  • Ehlers, Rene (University of Pretoria, 2011-09-23)
    The focus of this study is the development of a group of bimatrix variate beta distributions with bounded domain for the central and noncentral cases. They are constructed from different dependent Wishart ratios. Exact ...
  • Thiebaut, Nicolene Magrietha (University of Pretoria, 2011-11-18)
    Please read the abstract in the dissertation.
  • Jacobs, Rianne (University of Pretoria, 2012-05-16)
    This study systematically derives bivariate Kummer beta distributions for the first time using the product method. Although the definition of the bivariate product distribution is stated in general as the product of any ...
  • Strydom, H.F. (Hendrina Fredrika) (University of Pretoria, 2012-06-07)
    Maximum likelihood estimation of parameter structures in the exponential class is considered by using a procedure for maximum likelihood estimation under constraints. This procedure does not require maximization of the ...
  • Kritzinger, Pierre (University of Pretoria, 2012-08-14)
    Numerous nonparametric or distribution-free control charts have been proposed and studied in recent years; see, for example, the overview articles by Chakraborti et al. (2001), Chakraborti and Graham (2007) and Chakraborti ...