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Browsing 2001 National Research and Development Conference by Issue Date

Browsing 2001 National Research and Development Conference by Issue Date

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  • Finite-state computational morphology - treatment of the Zulu noun 
    Pretorius, L Bosch, SE (2001)
    Morphological analysis is a basic enabling application for further kinds of natural lan guage processing, including part-of-speech tagging, parsing, translation and other high-level applications. Automated morphological ...
  • Implication in three-valued logics of partial information 
    Britz, K (2001)
    In formal logic, both semantic entailment and the conditional connective are used to formalize the intuitive notion of implication. The former is defined in the meta-language of the logic, and the latter in the language ...
  • The development of a user classification model for a multi-cultural society 
    Streicher, M Wesson, JL Calitz, A (2001)
    During the last ten years, a number of computerised testing systems have been developed without considering the users' level of computer proficiency. Students at the University of Port Elizabeth come from a diverse background, ...
  • Towards a conceptual UML model for tracking a learner's progress in an outcomes-based environment 
    Harmse, R Thomas, T (2001)
    The arrival of outcomes-based education (OBE) in South African means that we have to change the way in which we assess our learners. Coupled with this change comes a move to larger classes where individual assessment has ...
  • 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 ...
  • An access control architecture for XML documents in workflow environments 
    Botha, R Eloff, J (2001)
    The eXtensible Markup Language {XML) are being upheld as having the potential to change the way business is conducted. This will be effected by changing the way in which information is shared. However, with the sharing of ...
  • Combining context provisions with graph grammar rewriting rules - the three-dimensional case 
    Barnard, A Ehlers, EM (2001)
    In this paper we consider the representation and generation of three-dimensional structures by means of formal descriptive methods. Graph and graph grammar theory present us with a powerful two-dimensional representational ...
  • Knowledge management: do we do what we preach? 
    Handzic, M Van Toorn, C Parkin, P (2001)
    The aim of the case study reported in this paper was to provide a cultural audit of a university school as a typical knowledge-based organisation. The subjects were 24 academic staff members who participated in the study ...
  • Finding adjacencies in non-overlapping polygons 
    Adler, J Christelis, GD Deneys, JA Konidaris, GD Lewis, G Lipson, AG Phillips, RL Scott-Dawkins, DK Shell, DA; (2001)
    Two polygons are adjacent if they have edges which share a common edge segment. In this paper we consider the problem of finding adjacencies in a set of n non-overlapping polygons. Using the fact that adjacent edges must ...
  • Formal usability testing - informing design 
    Van Greunen, D Wesson, J (2001)
    The goal of this paper is to discuss the role of usability testing in software development in South Africa. Throughout the software industry software engineers develop user interfaces (Ul) with little or no support from ...
  • A proposal for dynamic access lists for TCP/IP packet filtering 
    Hazelhurst, S (2001)
    The use of IP filtering to improve system security is well established, and although limited in what it can achieve has proved to be efficient and effective. In the design of a security policy there is always a trade-off ...
  • Towards teaching computer ethics 
    De Ridder, C Pretorius, L Barnard, A (2001)
    With the advent of the lnformation Age and global connectivity, the ethical use of Information and Communication Technologies (/CI) has become essential. As the drive towards the establishment of a so-called IT profession ...
  • Introductory IT at a tertiary level - is ICDL the answer? 
    Dixie, CH Wesson, JL (2001)
    Research is underway at the University of Port Elizabeth (UPE) to establish a framework for introductory IT courses to match the needs of future graduates of diverse programmes from the Faculties of Arts, Building Sciences, ...
  • The effects of avatars on co-presence in a collaborative virtual environment 
    Casanueva, J Blake, E (2001)
    Presence in Collaborative Virtual Environments (CVEs) can be divided into personal presence and co-presence. Personal presence is having a feeling of "being there" in the CVE oneself. Co-presence is having a feeling that ...
  • 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 ...
  • Optimal multi-splitting of numeric ranges for decision tree induction 
    Lutu, PEN (2001)
    Data mining is the process of extracting informative patterns from data stored in a database or data warehouse. Decision tree induction algorithms, from the area of machine learning are well suited for building classification ...
  • Information Systems strategic planning and IS function performance: an empirical study 
    Cohen, JF (2001)
    The validity of managerial activities such as strategic planning have come under increasing scrutiny in recent years. In particular, the validity of information systems strategic planning (ISSP) within South African ...
  • Issues affecting the adoption of data mining in South Africa 
    Hart, ML Davies, K Barker-Goldie, E-J Theron, A (2001)
    This research describes a study into the adoption of data mining (DM) techniques and tools in industry. They are seen by most companies interviewed as strategically important, with key applications varying per sector, but ...
  • Ubiquitous computing and cellular handset interfaces - are menus the best way forward? 
    Marsden, G Jones, M (2001)
    Embedded interactive computer systems, such as those found in cellular handsets, can be hard to use. The combination of small form factor - limited input and output potential - and an increasing feature set, result in ...
  • Jiminy: helping users to remember their passwords 
    Renaud, K Smith, E (2001)
    This paper presents a novel approach to a familiar problem - that of helping users to choose better passwords, and to remember them. User identification and authentication is an essential aspect of our technologically ...

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