Browsing Research Articles (Computer Science) by Title

Browsing Research Articles (Computer Science) by Title

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  • Gaussian-valued particle swarm optimization 
    Harrison, Kyle Robert; Ombuki-Berman, Beatrice M.; Engelbrecht, Andries P. (Springer, 2018-10)
    This paper examines the position update equation of the particle swarm optimization (PSO) algorithm, leading to the proposal of a simplified position update based upon a Gaussian distribution. The proposed algorithm, ...
  • A generalized theoretical deterministic particle swarm model 
    Cleghorn, Christopher Wesley; Engelbrecht, Andries P. (Springer, 2014-03)
    A number of theoretical studies of particle swarm optimization (PSO) have been done to gain a better understanding of the dynamics of the algorithm and the behavior of the particles under different conditions. These ...
  • Genetic programming-based regression for temporal data 
    Kuranga, Cry; Pillay, Nelishia (Springer, 2021-09)
    Various machine learning techniques exist to perform regression on temporal data with concept drift occurring. However, there are numerous nonstationary environments where these techniques may fail to either track or detect ...
  • Global optimisation through hyper-heuristics : unfolding population-based metaheuristics 
    Cruz-Duarte, Jorge M.; Ortiz-Bayliss, Jose C.; Amaya, Ivan; Pillay, Nelishia (MDPI, 2021-06)
    Optimisation has been with us since before the first humans opened their eyes to natural phenomena that inspire technological progress. Nowadays, it is quite hard to find a solver from the overpopulation of metaheuristics ...
  • Gramophone noise detection and reconstruction using time delay artificial neural networks 
    Stallmann, Christoph F.; Engelbrecht, Andries P. (Institute of Electrical and Electronics Engineers, 2017-06)
    Gramophone records were the main recording medium for more than seven decades and regained widespread popularity over the past several years. Being an analog storage medium, gramophone records are subject to distortions ...
  • Hans Driesch re-visited after a century : on "Leib und Seele – Eine Untersuchung über das psychophysische Grundproblem" 
    Gruner, Stefan (Cosmos and History Publishing Co-op, 2017)
    Long before Alan Turing laid the foundations of the ongoing artificial intelligence project with all its computer-scientific and philosophical consequences and side effects, we can find in a short but intellectually dense ...
  • Heuristic design of fuzzy inference systems : a review of three decades of research 
    Ojha, Varun; Abraham, Ajith; Snasel, Vaclav (Elsevier, 2019-10)
    This paper provides an in-depth review of the optimal design of type-1 and type-2 fuzzy inference systems (FIS) using five well known computational frameworks: genetic-fuzzy systems (GFS), neuro-fuzzy systems (NFS), ...
  • How big is your IT department? 
    Gruner, Stefan (Computer Society of South Africa, 2007-06)
    If you follow the recent IT-related discussions in South Africa with open ears, you will certainly have heard voices complaining about a shortage of skilled staff in the IT industry and a too low output of MSc-Graduates ...
  • Hybrid metaheuristics : an automated approach 
    Hassan, Ahmed; Pillay, Nelishia (Elsevier, 2019-09)
    Hybrid metaheuristics have proven to be effective at solving complex real-world problems. However, designing hybrid metaheuristics is extremely time consuming and requires expert knowledge of the different metaheuristics ...
  • Identity deception detection : requirements and a model 
    Van der Walt, Estee; Eloff, Jan H.P. (Emerald, 2019-09)
    PURPOSE : This paper aims to describe requirements for a model that can assist in identity deception detection (IDD) on social media platforms (SMPs). The model that was discovered demonstrates the usefulness of the ...
  • The impact of genetic programming in education 
    Pillay, Nelishia (Springer, 2020-06)
    Since its inception genetic programming, and later variations such as grammar-based genetic programming and grammatical evolution, have contributed to various domains such as classification, image processing, search-based ...
  • The impact of triggers on forensic acquisition and analysis of databases 
    Hauger, W.K. (Werner); Olivier, Martin S. (South African Institute of Electrical Engineers, 2015-06)
    An aspect of database forensics that has not received much attention in the academic research community yet is the presence of database triggers. Database triggers and their implementations have not yet been thoroughly ...
  • Implications of security mechanisms and service level agreements (SLAs) of platform as a service (PaaS) clouds for geoprocessing services 
    Ludwig, Byron; Coetzee, Serena Martha (Springer, 2012)
    Cloud computing is an emerging computing paradigm aimed at running services over the internet to provide scalability and flexibility. The advantages in using the cloud for start‐up and small businesses that lack ...
  • The importance of component-wise stochasticity in particle swarm optimization 
    Oldewage, E.T. (Elre); Engelbrecht, Andries P.; Cleghorn, Christopher Wesley (Springer, 2018-10)
    This paper illustrates the importance of independent, component-wise stochastic scaling values, from both a theoretical and empirical perspective. It is shown that a swarm employing scalar stochasticity is unable to express ...
  • Improving data quality in the banking supervisory data of Southern Africa central banks 
    Motjolopane, Refiloe; Lutu, Patricia Elizabeth Nalwoga (City University of Hong Kong, 2012)
    The importance of effective supervision of banking institutions in developing countries cannot be over-emphasised. Central banks are responsible for the supervision of the banking institutions of a country. In order to ...
  • Improving short text classification through global augmentation methods 
    Marivate, Vukosi; Sefara, Tshephisho (Springer, 2020-08)
    We study the effect of different approaches to text augmentation. To do this we use three datasets that include social media and formal text in the form of news articles. Our goal is to provide insights for practitioners ...
  • Informatics for historians : tools for medieval document XML Markup, and their impact on the History-Sciences 
    Burkard, Benjamin; Vogeler, Georg; Gruner, Stefan (Graz University of Technology, 2008)
    This article is a revised and extended version of [VBG, 07]. We conjecture that the digitalization of historical text documents as a basis of data mining and information retrieval for the purpose of progress in the history ...
  • Information security : the moving target 
    Dlamini, Moses Thandokuhle; Eloff, Jan H.P.; Eloff, M.M. (Elsevier, 2009)
    Information security has evolved from addressing minor and harmless security breaches to managing those with a huge impact on organisations’ economic growth. This paper investigates the evolution of information security; ...
  • Information security culture - validation of an assessment instrument 
    Da Veiga, A.; Martins, Nico; Eloff, Jan H.P. (College of Economic and Management Sciences, University of South Africa, 2007-04)
    Organisations need to ensure that the interaction among people, as well as between people and information technology (IT) systems, contributes to the protection of information assets. Organisations therefore need to assess ...
  • Integrated digital forensic process model 
    Kohn, Michael Donovan; Eloff, M.M.; Eloff, Jan H.P. (Elsevier, 2013-10)
    Digital forensics is an established research and application field. Various process models exist describing the steps and processes to follow during digital forensic investigations. During such investigations, it is not ...