Institutional Repository

South African Computer Journal 1991(5)

South African Computer Journal 1991(5)

 

Recent Submissions

  • The physical correlates of local minima 
    Wessels, LFA; Barnard, E; Van Rooyen, E (South African Institute of Computer Scientists and Information Technologists, 1991)
    The training of neural-net classifiers is often hampered by the occurrence of local minima, which results in the attainment of inferior classification performance. We study the problem of local minima in order to devise ...
  • Knowledge representation using formal grammars 
    Von Solms, S.H.; Ehlers, E.M.; Enslin, DJ (South African Institute of Computer Scientists and Information Technologists, 1991)
    In this paper, formal grammars, specifically random context grammars, are used as a vehicle for knowledge representation in expert systems. Random context grammars and the manner in which they are used to represent knowledge ...
  • An efficient primal simplex implementation for the continuous 2-matching problem 
    Smith, THC; Meyer, TWS; Leenen, L (South African Institute of Computer Scientists and Information Technologists, 1991)
    The continuous 2-matching problem {RMP2) is the relaxation of the symmetric travelling salesman problem {STSP) used by Padberg & Rinaldi to develop a highly successful branch-and-cut algorithm for the STSP. ...
  • An update on UNINET-ZA: The Southern African Academic and Research Network 
    Shaw, V (South African Institute of Computer Scientists and Information Technologists, 1991)
    The UNINET Academic and Research Network is a collaborative project among Universities, Research Councils and the FRD for the development, implementation and promotion of an academic and research network of computers ...
  • PEST - A microcomputer Pascal base expert system shell 
    Sartori-Angus, AG; Neville, R (South African Institute of Computer Scientists and Information Technologists, 1991)
    The PEST System is a totally interactive, forward chaining, rule-based expert system shell. It was primarily, though not exclusively, designed for the development of scientifically related expert systems in Pascal, involving ...
  • Concept network framework for a multi-paradigm knowledge base 
    Kambanis, J (South African Institute of Computer Scientists and Information Technologists, 1991)
    This paper describes a conceptual framework and an implementation medium for constructing multi-paradigm knowledge bases. The idea of a concept network is used as a basis for storing knowledge in different knowledge ...
  • A Linda solution to the evolving philosophers problem 
    Hazelhurst, SE (South African Institute of Computer Scientists and Information Technologists, 1991)
    The dining philosophers problem and the evolving philosophers problems are abstractions of resource sharing problems in parallel and distributed systems. A Linda solution to the dining problem has already been shown; this ...
  • An investigation in the separation of the application from its user interface 
    Greyling, JH; Warren, PR (South African Institute of Computer Scientists and Information Technologists, 1991)
    The separation of an interactive program's application from its user interface is investigated. In order to support good human interaction, the interface requires a deep knowledge of the application. This is in direct ...
  • The placement of subprograms by an automatic programming system 
    Du Plessis, JP; Messerschmidt, HJ (South African Institute of Computer Scientists and Information Technologists, 1991)
    Programming in a procedural language such as Pascal usually involves the development of subprograms. An auto­matic programming system needs a systematic method to determine the placement (position) of a subprogram in a ...
  • A method of controlling quality of application software 
    Crossman, T.D. (South African Institute of Computer Scientists and Information Technologists, 1991)
    This paper describes the inspection team process and explores its value to the application developer. The conclusion reached is that the technique does incur added development costs, but the whole process brings with it ...
  • Cost-effective visual simulation based on graphics workstations 
    Caduri, A; Kourie, D.G. (South African Institute of Computer Scientists and Information Technologists, 1991)
    Visual simulators can play a key role in personnel training and the evaluation of engineering designs. Although commercially available simulators provide realistic 3D perspective images, they are priced in the million ...
  • Why the fuss about neural networks? 
    Barth, G (South African Institute of Computer Scientists and Information Technologists, 1991)
    Currently, there is a certain hype about issues related to neural networks. This is somewhat surprising since the origins of neural nets date back some 40 years. At that time, several researchers experimented with distributed ...