Author:Olukanmi, P; Nelwamondo, Fulufhelo V; Marwala, TDate:Aug 2020This paper introduces a hybridization of the k-means and k-medoids paradigms. The new algorithms is named HP (hybrid partitioning) algorithm. Specifically, we improve on a recently developed scalable version of k-means (k-means-lite), by ...Read more
Author:Ssamula, B; Venter, CDate:Jul 2007This paper analyses a study aimed at testing the cost effectiveness of designing a hub and spoke network (H&S network”) for Africa that allows airlines to reduce the costs of travel and increase connectivity. Various hub networks are designed ...Read more
Author:Heera, J; Pretorius, HC; Erasmus, Louwrence DDate:Oct 2023The South African Local Government is currently experiencing a backlog in providing basic services to its citizens due to financial constraints, lack of planning, poor project management and integration between sector departments. The South ...Read more
Author:Featherstone, Coral; Van der Poel, EDate:Jul 2017There are some aspects of visualisation that are uniquely human. This is because data visualisation is heavily influenced by the science of human visual perception, much of which emerged from the Gestalt School of Psychology. Humans can ...Read more
Author:Dickens, JS; Green, JJ; Van Wyk, MADate:Jul 2011Underground mine automation has the potential to increase safety, productivity and allow the mining of lower-grade resources. In a mining environment with both autonomous robots and humans, it is essential that the robots are able to detect ...Read more
Author:Venter, Karien; Labuschagne, FJJ; Le Roux, M; Cloete, GDate:Oct 2013Worldwide, fatigue has been cited as a contributory cause in heavy vehicle crashes. In South Africa very little scientific evidence is available to support or reject this notion. A study was commissioned to investigate the role fatigue plays ...Read more
Author:Garland, Rebecca M; Rother, HDate:Oct 2017Southern Africa has multiple risks that contribute to the overall burden of disease (i.e. the quadruple burden of disease), which may make people more vulnerable to the health impacts from climate change. In addition, the sector is vulnerable ...Read more
Author:Wright, CY; Garland, Rebecca M; Norval, M; Vogel, CDate:Aug 2014Climate change is projected to lead to warmer temperatures, especially in southern Africa, where the warming is predicted to be 2°C higher than the global increase. Given the high burden of disease already associated with environmental factors ...Read more
Author:Moors, Carmen; Wilken, Ilana; Calteaux, Karen V; Gumede, TebogoDate:Sep 2018Almost a decade has passed since the first audit on the state of HLT in South Africa was published in 2009. An increase in HLT R&D in South Africa since then, as well as developments in language resource management in the country surfaced the ...Read more
Author:Wilken, Ilana; Gumede, Tebogo; Moors, Carmen; Calteaux, Karen VDate:Dec 2018Technology audits can play a significant role in surfacing information which can be used by researchers, policymakers and funders alike to build a country’s research and development system of innovation towards increasing its competitiveness, ...Read more
Author:Van Heerden, Renier P; Malan, MM; Mouton, F; Irwin, BDate:Jul 2014This paper investigates how the measurement of a network attack
taxonomy can be related to human perception. Network attacks do not have a
time limitation, but the earlier its detected, the more damage can be prevented
and the more ...Read more
Author:O'Farrell, Patrick J; Anderson, PML; Milton, SJ; Dean, WRJDate:Jan 2009Human adaptation and response to drought is primarily through evasion or endurance. A review of historical agricultural practices in southern Africa demonstrates evidence of drought evasion response strategies in well-established transhumance ...Read more
Author:Van Niekerk, Cornelia W; Le Roux, AlizeDate:Sep 2017This chapter describes some of the key drivers and processes of vulnerability and risks in human settlements in southern Africa that pose considerable challenges, but also opportunities, for climate change adaptation. Data for the whole of ...Read more
Author:Dam, JS; Sighn, S; Karsten, AEDate:Jul 2006Biomedical Optics is the study of the optical properties of living biological material, especially its scattering and absorption characteristics, and their significance to light propagation within the material. Determination of tissue optical ...Read more
Author:Ittmann, HWDate:Aug 2005The science of supply chain management in business has advanced so much in the last ten years, especially through the use of IT. How can knowledge be used to help in the humanitarian context, where no science of disaster logistics yet exists? ...Read more
Author:Ruyobeza, B; Grobbelaar, SS; Botha, AdèleDate:Aug 2022Despite all the excitement and hype generated regarding the expected transformative impact of digital technology on the healthcare industry, traditional healthcare systems around the world have largely remained unchanged and resultant ...Read more