UnisaIR: Recent submissions

  • Finding regular paths in acyclic graphs 
    Wood, P.T. (SAICS, 1989-11-29)
    Increasing the expressive power of relational query languages by providing some form of recursion is currently a topic of much research. For many recursive queries in relational databases, a relation can be represented as ...
  • Persistent sets - an alternative to relational databases 
    Berman, S. (SAICS, 1989-11-29)
    Persistent programming languages, which extend conventional languages to treat database data as well, are becoming viable alternatives to Database Management Systems. However, they are currently lacking in one essential ...
  • Database consistency under UNIX 
    Viktor, H.L. (SAICS, 1989-11-29)
    A recovery technique to facilitate the recovery from system failures should ensure a consistent database state at all times. The UNIX write system call uses a delayed-write policy. Data blocks are kept in a buffer cache ...
  • A file server for a multi-transputer UNIX system 
    Hoffman, K. Smit, G. de V. (SAICS, 1989-11-29)
    The DISTRIX operating system is a multiprocessor UNIX-like distributed operating system. It consists of a number of satellite processors connected to central servers. The system is based on the MINIX operating system, ...
  • Implementing UNIX on the INMOS transputer 
    McCullagh, P. Smit, G. de V. (SAICS, 1989-11-29)
    This paper examines the transputer as the target for a UNIX port and discusses specific problems that were encountered during implementation of a UNIX kernel in a transputer environment. Some solutions to the problems are ...
  • The use of a lattice for fast pattern matching 
    Oosthuizen, G.D. (SAICS, 1989-11-29)
    Pattern recognition involves the matching of a given pattern against a collection of patterns in store in order to identify the given pattern as belonging to a particular class already known to the system or not. Similarly, ...
  • Induction of decision trees in a domain with continuous attributes 
    Cloete, I. Theron, H. (SAICS, 1989-11-29)
    Quinlan's ID3 is a popular and efficient algorithm for inducing decision trees from concept examples, where the examples are presented as vectors of attribute-value pairs. For attributes with large, continuous domains ID3 ...
  • A design environment for semantic data models 
    Kambanis, J. (SAICS, 1989-11-29)
    This paper describes the functionality and architecture of a Semantic Data Modeling environment. It integrates User Interface techniques used in Computer Aided Software Engineering and Expert Systems shells into a system ...
  • An interrupt driven paradigm of concurrent programming 
    Clayton, P.G. (SAICS, 1989-11-29)
    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 to ...
  • The case for functional programming 
    Wentworth, E.P. (SAICS, 1989-11-29)
    Functional programming has gained a foothold in academic institutions, and the first commercial interests have been noted. The paradigm is presented by way of some small examples, and arguments are given in favour of this ...
  • A pipelined control strategy for inferencing 
    Kourie, D.G. Potgieter, A.E.G. (SAICS, 1989-11-29)
    The task of deriving a solution to a goal from a Hom clause database is seen in terms of finding a solution tree as a subtree of an and/or tree. The way in which various well-known control strategies derive such solutions ...
  • Data structuring via functions 
    Venter, B.H. (SAICS, 1989-11-29)
    A programming language data model is introduced, based on the notions that variables are functions and types are sets of values. It is shown that, despite the simplicity of the underlying mathematical formalism, the data ...
  • Experience with the development of a neural network simulator 
    Cloete, I. Ludik, J. (SAICS, 1989-11-29)
    Researchers experimenting with structured neural networks must be able to imple­ment and test their ideas. Since most of the network models presume much structure, and network architecture design is a major component in ...
  • Ecological applications using a novel expert system shell 
    Riordan, D. Bradshaw, J.A. Carden, K.J. (SAICS, 1989-11-29)
    Much of the information used by ecologists in modeling and decision making is imprecise. The imprecision arises both from data which is inexact or incom­plete and from the use of ecological principles which are sometimes ...
  • Object-oriented systems, so what? 
    Barth, Gerhard (SAICS, 1989-11-29)
  • Proceedings of the 5th Southern African Computer Symposium, 1989 (Frontmatter) 
    Kritzinger, Pieter (Editor) (SAICS, 1989-11-29)
    Front page, table of contents, preface, back page
  • The effect of market intelligence on marketing mix decision making in the Ethiopian brewery industry 
    Tekalign Yalew Shita (2025-02)
    The study empirically investigated the relationship between market intelligence and marketing mix decision-making in the Ethiopian brewery industry. Its primary purpose was to assess the way market intelligence influences ...
  • Advancing research data management strategies in Academic libraries of Private Higher Education Institutions in Ghana 
    Yamson, George Clifford (2025-02)
    Effective research data management (RDM) methods and protocols are crucial for ensuring the reliability and quality of research outcomes, promoting collaboration among researchers, and facilitating the reuse of data for ...
  • The pedagogical challenges in teaching economics to grade 12 learners 
    Makgato, Matlou Isaac (2025-07-30)
    The research project aimed to examine the pedagogical challenges in teaching Economics to Grade 12 learners at the Capricorn North District schools in the Limpopo Province. For this study to reach its aim, specific objectives ...
  • Teachers' perceptions of the mental health learners at a Saudi Arabian boys' international school 
    Jacobs, Muhktar (2024)
    Despite the Kingdom of Saudi Arabia (KSA) has been well-endowed with oil reserves, it has realised that it will not be able to compete with the world holistically, except where oil is concerned. Vision 2030 emerged as a ...

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