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Browsing SAICSIT Proceedings: 1979-2001 by Title

Browsing SAICSIT Proceedings: 1979-2001 by Title

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  • Rank-one update of Cholesky factorization 
    Ntlatlapa, N (1995)
    Symmetric positive definite matrices appear in most methods for Unconstrained Optimization. The method widely adopted for factoring these matrices is Cholesky Factorization. Furthermore, in Quassi-Newton methods for ...
  • Ray guarding configurations of adjacent rectangles 
    Sanders, I; Lubinsky, D; Sears, M (2000)
    Guarding and covering problems have great importance in Computational Geometry. In this paper the notion of a ray guard, a guard that can only 'see' along a single ray, is introduced. The problem of siting the fewest ...
  • Real-time control the system model - a holistic approach to system design 
    Considine, TN (1996)
    The Real-time Control System Model is a system design methodology which provides robust systems based on Object technology. The paper will detail the components of the model including the control layers and the time-based ...
  • Real-time facial animation for virtual characters 
    Burford, DJ; Blake, EH (2001)
    Facial expressions form an important part of human to human communication. In order to exploit the fall potential of computer networks and the Internet for communication and interaction, provision should be made for conveying ...
  • Real-time performance of OPC in a feedback system 
    Kew, SJ; Dwolatzky, B (2001)
    "OPC" is an important new specification designed to solve interoperability problems in the process control environment. It is based on Microsoft's Component Object Model (COM). The paper surveys and describes the OPC ...
  • The recall performance of multiple associative memories - a comparison of thresholding strategies 
    Vahed, A (1995)
    The associative network presents a practical and efficient means for the storage and retrieval of data. Although the recall abilities of single-layer associative memories have been well researched[3], little investigation ...
  • Reducing fractal encoding complexities 
    Cloete, E; Venter, LM (1998)
    In this paper we address the time complexity problem associated with fractal image coding. In particular, we describe a new hybrid technique called Fractal Vector Quantization coding (FVQ), which takes advantage of the ...
  • A reference model for the process control domain of application 
    Dhevcharran, N; Steenkamp, AL; Ram, V (1996)
    The increasing complexity of large process control systems impedes efforts to construct, co-ordinate and monitor these systems effectively. The object oriented paradigm and associated mechanisms greatly assist in software ...
  • Refuting conjectures in first-order theories 
    De Waal, DA; Hattingh, GN (1998)
    Given some first-order theory, a formula (also called a conjecture) may or may not be a theorem of some theory. A theorem prover attempting to prove that the given formula is a theorem may terminate, proving that the formula ...
  • The relational organisation model 
    Laauwen, B (1996)
    It has become clear that today's complex society of specialised individuals has a need for problem solving techniques using an integrated and interdisciplinary approach. The popularity of business re-engineering beliefs ...
  • The representation of chemical structures by random context structure grammars 
    Ehlers, EM; Von Solms, SH (1987)
    A representation of chemical molecules by Random Context Structure Grammars is proposed. Random Context Structure Grammars generate three-dimensional digital structures. Random Context Structure Grammars and Random Context ...
  • Representing quadrics on a computer 
    Coetzee, MA; Baart, ML (2000)
    In our research on transfinite interpolation with quadric patches, we needed to draw the part of some quadratic surface that lies between two given planes. In this talk, we discuss a way to parameterize a quadric patch ...
  • Research in information technology at South Africans Technikons 
    Von Solms, R (1995)
    Traditionally, Technikon training was focused on career-oriented education and training. This has changed over the last few years and research has started to play a major role in Technikon education. This additional objective ...
  • Response surface analysis as a technique for the visualization of linear models and data 
    Terblanche, F; Hattingh, G (1998)
    Response surface analysis aims of exploring the behavior of a response function in some region. Some authors (see e.g. [BRU] and [DEV]), have used this approach to get "better" interpretations of the behavior of linear ...
  • Rethinking IS Curricula for South Africa 
    Froneman, L; Roode, JD (1995)
    What to teach students in an undergraduate program in Information Systems at a tertiary institution has repeatedly been debated over the years. Various curricula have been published, the most recent effort being the IS ...
  • Returns on the Stock Exchange 
    Kruger, JW (2000)
    The McGreggor database supplies the accounting information of companies listed on the Johannesburg stock exchange. These attributes are not significantly correlated to the Return. The Pearl's algorithm in Bayesian belief ...
  • A reusable kernel for the development of control software 
    Fouche, W; De Villiers, PJA (1991)
    A kernel has been developed which can be used to simplify the development of control software. It can be used to control several physical machines which are interconnected via a fast local area network. One or more virtual ...
  • A risk model to allocate resources to different computerised systems 
    Kruger, HA; Hattingh, JM (1997)
    The majority of large organisations operate and maintain significant portfolios of computerised systems. All Information Systems (IS) managers are increasingly faced with the task of doing more with less. To cope with ...
  • The role of formalism in engineering interactive systems 
    Harrison, MD; Duke, DJ (1996)
    This paper is concerned with the role of formal notations and methods in engineering interactive systems. It begins by briefly reviewing the role of formal methods in Human Computer Interaction.The objective of capturing ...
  • The role of IT in Business Process Reengineering 
    Blewett, CN; Cansfield, J; Gibson, L (1996)
    South African organisations are facing increasing demands stemming from growing competition, fast changing technologies and global trends and pressures. The methods and management structures enabled these organisations to ...

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