College of Science, Engineering and Technology: Recent submissions

  • PLaVa: a lightweight persistent Java virtual machine 
    Tjasink, S Berman, S (2000)
    This paper describes the implementation and tuning of an orthogonally persistent Java Virtual Machine (JVM) for small computers. It is based on a JVM that was targeted at a digital satellite television decoder with 1 ...
  • Cardinality constrained 0-1 Knapsack problems 
    Kruger, MF Hattingh, JM Steyn, T (2000)
    The Knapsack Problem is one of the most important problems in Discrete optimization. Although it is the simplest integer program, it has numerous practical applications and often appears as a subproblem in solving more ...
  • 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 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 ...
  • Model checking software with symbolic trajectory evaluation 
    Hazelhurst, S (1997)
    Traditional methods of testing computer systems, although valuable, are inadequate for ensuring sufficiently high quality in systems in which a high degree of reliability must be placed. Formal methods for development of ...
  • An overview of the Internet services available in South Africa 
    Radovanovic, A Venter, DM (1995)
    South African networking history started in the mid 1980's. Within less than ten years, the country became the 15-th fastest growing network within the lnternet community. Today, the South African network offers a variety ...
  • 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 ...
  • The design of a 2D non-linear filter for digital image processing 
    Cloete, E (1995)
    A 1 D non-linear filter which is based on 'max-min' selectors is extended for use in 2 0 applications. The objective of this research is to remove impulsive noise without unduly changing original, valid data. Some examples ...
  • Higraphs: an overview of theory and application 
    Hillebrand, G (1995)
    This paper presents an overview of the established concepts of David Harel' s higraphs, to increase their visibility. Higraphs are a union of extended graph and extended set theory which allows the understandable definition ...
  • Error analysis in selected medical devices and information systems 
    Randiki, E (1998)
    The purpose of this paper is to identify and analyse error in selected medical devices: the Datex cardiocap and the capnomac Ultima II. These are both anaesthetic machines used to monitor patients in theatre. A secondary ...
  • Man (Humans) vs/and Machine (Robots): Sharing is Caring 
    Twinomurinzi, Hossana (2018)
  • Effectively exploiting server log information for large scale web sites 
    Wong, B Marsden, G (2001)
    With the continuing growth of the Internet, an increasing number of organisations are incorporating the Web into their business activities. The appeal of a site to users in terms of both attractiveness and usability ...
  • A pattern architecture: using patterns to define an overall systems architecture 
    Van Zyl, J Walker, AJ (2001)
    The notion of patterns has been used in many different disciplines, and the software industry is no exception. There are many books written, academic research done and practical examples available of where patterns have ...
  • The specification of a multi-level marketing business 
    Van der Poll, JA Kotze, P (2001)
    A formal specification of a multi-level marketing (MLM} business is presented. Specifying a MLM business boils down to specifying properties of and operations on mathematical forests and trees. The usefulness of the ...
  • Lessons learnt from an action research project running groupwork activities on the Internet: lecturers' experiences 
    Thomas, TA Brown, S (2001)
    Group activities are important for students in order to develop the skills they will need for working with other people when they get into industry. The Internet offers an exciting environment for students to practise these ...
  • The effect of colour, luminance, contrast, icons, forgiveness and closure on ATM interface efficiency 
    Stander, A Van Zee, P Wang, Y-J (2001)
    Automatic teller machines (ATM) are an intermediate stage in the progression of banking technology. This intermediate stage is expected to remain until user perceptions of electronic banking have improved. ATM transaction ...
  • Information security development trends 
    Von Solms, E Eloff, JHP (2001)
    Information is a very valuable resource and must be protected against harmful attacks from inside as well as outside the organization. As a resource, information is the lifeline of many organizations and is therefore vital ...
  • Creating high performance IS teams 
    Smith, DC Becker, M Burns-Howell, J Kyriakides, J (2001)
    The use of teams within organisations is becoming more prevalent as teams have been identified as an efficient work unit of human capital. This research identified 17 team effectiveness characteristics and, using a sample ...
  • 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 ...
  • 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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