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South African Computer Journal (SACJ): Recent submissions

Now showing items 1-20 of 252

South African Computer Journal Table of Contents

Unknown author (2019)
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 ...
A pragmatic approach to development information to provide service on a wide scale

Mncube, SS (South African Computer Society (SAICSIT), 1996)

The rapid technological growth in our time has produced an explosion of information. This, in tum, has spawned information systems based on the use of computers and automated systems. These mechanised devices with their ...
Computer Science and Information Systems: the future?

Machanick, P (South African Computer Society (SAICSIT), 1999)
WOFACS '96: Workshop on formal and applied Computer Science

Brink, C (South African Computer Society (SAICSIT), 1997)
Business process reengineering: management's new paradigm or emperor's new clothes?

Jones, MR (South African Computer Society (SAICSIT), 1995)

Business Process Reengineering (BPR) is currently attracting much attention as an approach to organisational change, but has received relatively little critical scrutiny. This paper seeks to examine the origins, antecedents ...
The FRD Special programme on collaborative software research and development. Draft call for proposals

Krzesinski, T (South African Computer Society (SAICSIT), 1994)

The foundation for Research Development (FRD) is evaluating the need for a new Special Programme in Computer Science. An initial meeting was held in August 1993 at the FRD to discuss the new programme. A Steering Committee ...
Some current practices in evaluating IT benefits in South African organisations

Sutherland, F (South African Computer Society (SAICSIT), 1994)

IT has a dynamic impact on organisations and little research has been done especially on the extent to which senior executives take the different system types into account when they appraise an IT investment. The aim of ...
A survey of information authentication techniques

Smuts, WB (South African Computer Society (SAICSIT), 1994)

This article provides a survey of techniques which can be used to add authenticity to electronic documents and messages.
A Java client/server system for accessing arbitrary CANopen fieldbus devices via the Internet

Buhler, D; Nusser, G; Gruhler, G; Kuchlin, W (South African Computer Society (SAICSIT), 1999)

This paper describes the Java CAN API a portable and extensible application interface to arbitrary CANopen fieldbus devices. This API forms the basis for the implementation of JRCC (Java Remote CAN Control), a tool which ...
Dynamic deadlock avoidance: a prototype

Blewett, CN; Erwin, GJ (South African Computer Society (SAICSIT), 1996)

In this paper, we describe a prototype of an expert system software advisor for the deadlock treatment of a lock manager in a database system. The software advisor, called EAGLE (External Advisor for Granting Locks ...
Object oriented programs and a stack based virtual machine

Waldron, JT (South African Computer Society (SAICSIT), 2000)

Dynamic quantitative measurements of Bytecode and Stack Frame Usage by Eiffel and Java Programs in the Java Virtual Machine are made. Two Eiffel programs are dynamically analysed while executing on the JVM, and the results ...
Syntactic description of neighbourhood in quadtree

Tapamo, JR (South African Computer Society (SAICSIT), 2000)

Region representation is very important in Graphics and Image Processing. This paper is concerned with a formalisation of image representation by quadtrees. Indeed an image here is a language over an alphabet of four ...
Orthogonal axial line placement in chains and trees of orthogonal rectangles

Sanders, ID; Watts, DC; Hall, AD (South African Computer Society (SAICSIT), 2000)

Previous research has shown that the orthogonal axial line placement problem for orthogonal rectangles is NP-complete in general but also that there are restrictions of the problem for which polynomial time solutions can ...
Multilingual training of acoustic models in automatic speech recognition

Nieuwoudt, C; Botha, EC (South African Computer Society (SAICSIT), 2000)

This paper evaluates the performance of a speech recognition system using acoustic models trained on multilingual data. The reason in our case for using data from more than one language is that there may not be enough ...
Scalability of the RAMpage memory hierarchy

Machanick, P (South African Computer Society (SAICSIT), 2000)

The RAMpage memory hierarchy is an alternative to the traditional division between cache and main memory: main memory is moved up a level and DRAM is used as a paging device. As the CPU-DRAM speed gap grows, it is expected ...
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 ...
Technological experience and technophobia in South African university students

Clarke, MC (South African Computer Society (SAICSIT), 2000)

In an earlier study co-ordinated by Weil and Rosen, university students in 23 countries were surveyed in order to compare their levels of technological sophistication and technophobia. The countries sampled did not include ...
A new approach for program integration

Bouras, Z-E; Khammaci, T; Ghoul, S (South African Computer Society (SAICSIT), 2000)

Program integration combines independent enhancements to some version of a software system into a new system that includes the enhancements and the old system. Current approaches use the slice concept. The latter is a ...
A declarative framework for temporal discrete simulation

Abdulrab, H; Ngomo, M; Drissi-Talbi, A (South African Computer Society (SAICSIT), 2000)

The aim of this paper is to introduce temporal processes and linear constraints on naturals for solving temporal discrete simulations problems. We first describe a new approach for solving such constraints, based on the ...

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