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Browsing South African Computer Journal (SACJ) by Title

Browsing South African Computer Journal (SACJ) by Title

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  • Ideologies of information systems and technology 
    Introna, LD (South African Computer Society (SAICSIT), 1994)
    In this paper some views and ideologies of information systems and technology will be explored. Some of these views and ideologies are clearly understood and have a high level of support. There are however more subtle ...
  • Image coding with fractal vector quantization 
    Cloete, E; Venter, LM (South African Computer Society (SAICSIT), 2000)
    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 (FVQ), which takes advantage of the best ...
  • Image reconstruction via the Hartley transform 
    Murrell, HC; Carson, D (South African Institute of Computer Scientists and Information Technologists, 1990)
    The continuous and discrete Hartley transforms are real valued transforms that have similar properties to the continuous and discrete Fourier transforms. In addition, a fast algorithm exists for computing the discrete ...
  • An implementation of Linda tuple space under the Helios operating system 
    Clayton, Peter G.; Wentworth, EP; Wells, GC; de-Heer-Menlah, FK (th African Institute of Computer Scientists and Information Technologists, 1992)
    We discuss the implementation of Rhoda, our Linda(i)-like Tuple Space server which runs under the Helios(ii) operating system. The approach analyses and partitions tuple space at compile time in order to reduce the run ...
  • An implementation of the parallel conditional 
    Jayasekera, U; Philips, N.C.K. (South African Institute of Computer Scientists and Information Technologists, 1992)
    The parallel conditional, a natural generalisation of both Lisp's COND and Dijkstra's guarded commands, is particularly suited to parallel processing. This note describes the implementation of a preprocessor that enables ...
  • Implementing UNIX on the INMOS transputer 
    McCullagh, PJ; Smit, G de V (South African Institute of Computer Scientists and Information Technologists, 1990)
    The transputer is examined as the target for a UNIX port and specific problems encountered during implementation of a UNIX kernel in a transputer environment are discussed. Some solutions to the problems are suggested and ...
  • Improving object oriented analysis by explicit change analysis 
    Yu, L; Khong, SC; Xun, Y; Yuan, M (South African Computer Society (SAICSIT), 1999)
    Changeability is one of the major concerns in software development. OO (Object-Oriented) technology itself is not enough to solve this problem, i.e. software systems cannot have enough changeability by just using any ...
  • Indexing in a case-based reasoning system for waste management 
    Wortmann, KL; Petkov, D; Senior, E (South African Computer Society (SAICSIT), 1999)
    This paper presents a summary of research on indexing in Case-Based Reasoning (CBR) applied to the domain of waste management. Indexing theory and techniques are covered in order to position the results. The chosen application ...
  • Information security on the electronic superhighway 
    Von Solms, SH (South African Computer Society (SAICSIT), 1996)
    This paper discusses a number of security protocols for the Internet and World Wide Web. The first two, SSL and SHTTP, provide general authentication, confidentiality and integrity facilities, while SEPP is a payment ...
  • Information Technology and South Africa's Green Paper on Science and Technology 
    Blake, E (South African Computer Society (SAICSIT), 1996)
    If an effective national system of innovation is the main proposal of the green paper then information technology (IT) has to play a very central role in that system. Supporting IT effectively will also mean supporting ...
  • Information technology in a developing economy 
    Crossman, T.D.; Fortmann, P; Heneke, V; Murray, D (South African Computer Society (SAICSIT), 1995)
    There is considerable debate about the value of information technology (IT) in developing economies. Some argue opti­mistically that without IT, developing economies will not grow. Others, somewhat pessimistically, warn ...
  • Information technology training in organisations: A replication 
    Roets, R (South African Computer Society (SAICSIT), 1994)
    This paper replicates a study conducted in the USA to test the perceived need for IT training in organisations by non-IS employees, and the need for more general business knowledge by IS employees. The hypothesis tested ...
  • An information-theoretic semantics for belief change 
    Meyer, TA (South African Computer Society (SAICSIT), 1999)
    Belief change is an interdisciplinary topic and is researched in departments of Computer Science, Artificial Intelligence, Philosophy, Mathematics and Engineering. It is therefore not surprising that there are a variety ...
  • The innovative management of information in the mid-1990s 
    Remenyi, D (South African Computer Society (SAICSIT), 1994)
    This paper reviews recent literature on the subject of the operational and financial difficulties facing business and manage­ment in the mid 1990's. It identifies how, due to generally poor results, business is under more ...
  • An integrated classification of multiple database systems 
    Renaud, K; Kotze, P (South African Computer Society (SAICSIT), 1996)
    In many applications today multiple pre-existing database systems are integrated into one multiple database system. There are various characteristics of these systems which distinguish them from other types of multiple ...
  • Integrating similarity-based and explanation-based learning 
    Oosthuizen, GD; Avenant, C (South African Institute of Computer Scientists and Information Technologists, 1992)
    Recently, there have been various attempts to combine the strengths of similarity-based learning (SBL) and explanation­-based learning (EBL) in a single learning system. We describe a graph-based learning method called ...
  • Intelligent production scheduling: A survey of current techniques and an application in the footwear industry 
    Ram, V (South African Computer Society (SAICSIT), 1994)
    Computer Based Scheduling is an important activity especially in automated environments such as CIM (Computer Integrated Manufacturing ) where it is an integral part of the total manufacturing function. Developments in ...
  • An interrupt driven paradigm of concurrent programming 
    Clayton, Peter G. (South African Institute of Computer Scientists and Information Technologists, 1991)
    This paper introduces a class of concurrent programming construct based on an interrupt driven paradigm. This programming model is designed to simplify the application of conventional imperative programming techniques ...
  • Introducing a continuum of abstraction-led hierarchical search techniques 
    Zimmer, R; Holte, R (South African Computer Society (SAICSIT), 1999)
    Abstraction in search works by replacing a state space by another space (the abstract space) that is easier to search, either because it is smaller or because it contains more solutions. Results of searches in the abstract ...
  • Introducing research methods to Computer Science honours students 
    Galpin, V; Hazelhurst, S; Mueller, C; Sanders, I (South African Computer Society (SAICSIT), 1999)
    Research skills are important for any academic and can be of great benefit to any professional person. These skills are, however, difficult to teach and to learn. In the Department of Computer Science at the University ...

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