College of Science, Engineering and Technology: Recent submissions

  • Metaheuristic approaches to realistic portfolio optimisation 
    Busetti, Franco Raoul (2000-06)
    In this thesis we investigate the application of two heuristic methods, genetic algorithms and tabu/scatter search, to the optimisation of realistic portfolios. The model is based on the classical mean-variance approach, ...
  • Aspects of interval analysis applied to initial-value problems for ordinary differential equations and hyperbolic partial differential equations 
    Anguelov, Roumen Anguelov (1998-09)
    Interval analysis is an essential tool in the construction of validated numerical solutions of Initial Value Problems (IVP) for Ordinary (ODE) and Partial (PDE) Differential Equations. A validated solution typically ...
  • A quality assurance reference model for object-orientation 
    Thornton, Deborah (1994-06)
    The focus of the dissertation is on software quality assurance for object-oriented information systems development. A Quality Assurance Reference Model is proposed with aspects dealing with technical and managerial issues. ...
  • Compactness in categories and its application in different categories 
    Thulapersad, Sarah (1994-12)
    In the paper [HSS] Herrlich, Salicrup and Strecker were able to show that Kuratowski / Mrowka's Theorem concerning compactness for topological spaces could be applied to a wider setting. In this dissertation, which is based ...
  • The queen's domination problem 
    Burger, Alewyn Petrus (1998-11)
    The queens graph Qn has the squares of then x n chessboard as its vertices; two squares are adjacent if they are in the same row, column or diagonal. A set D of squares of Qn is a dominating set for Qn if every square ...
  • Non-response error in surveys 
    Taljaard, Monica (1997-06)
    Non-response is an error common to most surveys. In this dissertation, the error of non-response is described in terms of its sources and its contribution to the Mean Square Error of survey estimates. Various response and ...
  • Universal homophonic coding 
    Stevens, Charles Cater (1996-11)
    Redundancy in plaintext is a fertile source of attack in any encryption system. Compression before encryption reduces the redundancy in the plaintext, but this does not make a cipher more secure. The cipher text is still ...
  • Integration testing of object-oriented software 
    Skelton, Gordon William (2000-08)
    This thesis examines integration testing of object-oriented software. The process of integrating and testing procedural programs is reviewed as foundation for testing object-oriented software. The complexity of object-oriented ...
  • On factorization structures, denseness, separation and relatively compact objects 
    Siweya, Hlengani James (1994-04)
    We define morphism (E, M)-structures in an abstract category, develop their basic properties and present some examples. We also consider the existence of such factorization structures, and find conditions under which they ...
  • Measurable functions and Lebesgue integration 
    Brooks, Hannalie Helena (2002-11)
    In this thesis we shall examine the role of measurerability in the theory of Lebesgue Integration. This shall be done in the context of the real line where we define the notion of an integral of a bounded real-valued ...
  • Aspects of bivariate time series 
    Seeletse, Solly Matshonisa (1994-11)
    Exponential smoothing algorithms are very attractive for the practical world such as in industry. When considering bivariate exponential smoothing methods, in addition to the properties of univariate methods, ...
  • Vooruitberamingsmodelle in die telekommunikasie-omgewing 
    Schoeman, Daniel Frederik (1996-06)
  • A model-theoretic realist interpretation of science 
    Ruttkamp, Emma (1998-11)
    My model-theoretic realist account of science places linguistic systems and the corresponding non-linguistic structures at different stages of the scientific process. It is shown that science and its progress cannot be ...
  • A comparative study of transaction management services in multidatabase heterogeneous systems 
    Renaud, Karen Vera (1996-04)
    Multidatabases are being actively researched as a relatively new area in which many aspects are not yet fully understood. This area of transaction management in multidatabase systems still has many unresolved problems. ...
  • A methodology for integrating legacy systems with the client/server environment 
    Redelinghuys, Melinda (1996-06)
    The research is conducted in the area of software methodologies with the emphasis on the integration of legacy systems with the client/server environment. The investigation starts with identifying the characteristics of ...
  • The forecasting of transmission network loads 
    Payne, Daniel Frederik (1997-11)
    The forecasting of Eskom transmission electrical network demands is a complex task. The lack of historical data on some of the network components complicates this task even further. In this dissertation a model is ...
  • A simulation study of the effect of therapeutic horseback riding : a logistic regression approach 
    Pauw, Jeanette (1998-11)
    Therapeutic horseback riding (THR) uses the horse as a therapeutic apparatus in physical and psychological therapy. This dissertation suggests a more appropriate technique for measuring the effect of THR. A research ...
  • A technology reference model for client/server software development 
    Nienaber, R. C. (Rita Charlotte) (1996-06)
    In today's highly competitive global economy, information resources representing enterprise-wide information are essential to the survival of an organization. The development of and increase in the use of personal computers ...
  • Promoting Verwoerdburg : a study in city marketing 
    Nel, Verna Joan (1994-05)
    City marketing is a recently developed process to assist communities in achieving development oriented aims. Changing economic circumstances created such a need and marketing contributed key concepts such as marketing ...
  • Object oriented database management systems 
    Nassis, Antonios (1995-11)
    Modern data intensive applications, such as multimedia systems require the ability to store and manipulate complex data. The classical Database Management Systems (DBMS), such as relational databases, cannot support these ...

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