Author:Butgereit, L; Coetzee, LDate:May 2011As more and more “smart things” get connected to the Internet, the “Internet of Things” grows. It is currently quite common that aircraft have transponders and cars have tracking devices. Even the family pet, FIDO, often has a chip embedded. ...Read more
Author:Mofolo, ROM; Lysko, Albert A; Olwal, TO; Clarke, WADate:Sep 2011In this paper, the authors present a method of electronic beam steering for circular switched parasitic array (SPA) antennas. In circular SPA antennas, one achieves azimuth beam steering by open-circuiting and short-circuiting different ...Read more
Author:De Beer, Morris; Kleyn, EG; Wolff, H; Otte, JRDate:1991This paper summarises the full scale accelerated research done during the past six years with the Heavy Vehicle Simulator (HVS) belonging to the Roads Branch of the Transvaal Provincial Administration (TPA). The research concentrated on the ...Read more
Author:Dlamini, Thandokuhle M; Eloff, JHP; Venter, HS; Eloff, MM; Henha Eyono, RPS; Mosola, NNDate:Sep 2017This paper investigates how to effectively stop an attacker from using compromised user credentials to gain authorized entry to systems that they are otherwise not authorised to access. The proposed solution extends previous work to move ...Read more
Author:Rosman, Benjamin SDate:Nov 2014An agent continuously performing different tasks in the same domain has the opportunity to learn, over the course of its operational lifetime, about the behavioural regularities afforded by the domain. This paper addresses the problem of ...Read more
Author:Winschiers-Theophilus, H; Chivuno-Kuria, S; Kapuire, GK; Bidwell, NJ; Blake, EDate:2010In this paper, we explore the concept of participatory design from a different viewpoint by drawing on an African philosophy of humanness -Ubuntu-, and African rural community practices. The situational dynamics of participatory interaction ...Read more
Author:Marom, O; Rosman, Benjamin SDate:Feb 2018A key challenge in many reinforcement learning problems is delayed rewards, which can significantly slow down learning. Although reward shaping has previously been introduced to accelerate learning by bootstrapping an agent with additional ...Read more
Author:Rens, G; Ferrein, ADate:Sep 2013We consider online partially observable Markov decision processes (POMDPs) which compute policies by local look-ahead from the current belief-state. One problem is that belief-nodes deeper in the decision-tree increase in the number of states ...Read more
Author:Mouton, Francois; Teixeira, M; Meyer, TDate:Nov 2017As the nature of information stored digitally be- comes more important and confidential, the security of the systems put in place to protect this information needs to be increased. The human element, however, remains a vulnerability of the ...Read more
Author:Stander, Johan N; Landwehr, Gregory BDate:Nov 2017This presentation explains the importance of benchmarking microscale codes, its setup, and results achieved. Future work is also touched on.Read more
Author:Kruger, Carel P; Hancke, GPDate:Jul 2014The use of commercial off-the-shelf components for implementing Internet of Things devices has become a common practice amongst researchers and solution providers. IOT solutions, based on the Raspberry Pi, BeagleBone and BeagleBone Black, ...Read more
Author:Hawes, Nomashaka BN; Johannes, PT; Hlangothi, P; Mturi, George AJDate:Oct 2019Bitumen emulsions are the most commonly used bituminous products for roads in Southern Africa because they are relatively inexpensive to apply, in comparison with hot bituminous binders. Although there have been great strides taken in the ...Read more
Author:Kemp, Lana; De Saxe, Christopher C; Berman, Robert P; Steenkamp, Anton JDate:Jul 2019The Smart Truck or Performance-Based Standards (PBS) pilot project in South Africa has been running since 2007, and currently comprises approximately 280 vehicles operational in seven provinces, spanning fourteen different industries or ...Read more
Author:Helbig, M; Engelbrecht, APDate:Jun 2013When algorithms solve dynamic multi-objective optimisation problems (DMOOPs), benchmark functions should be used to determine whether the algorithm can overcome specific difficulties that can occur in real-world problems. However, for dynamic ...Read more
Author:Maremi, Keneilwe J; Thulare, Tumiso; Herselman, Martha EDate:May 2022The objective of this paper is to provide insight into how the successful implementation of Digital Transformation (DT) can help address the challenges and hindrances in South Africa's e-Government. It is essential to aid South Africa's ...Read more
Author:Page, Philip RDate:Nov 2018The additional benefit of a recent highly optimal technique which keeps the pressure low and constant at a remote location, above the conventional technique, is discussed. The former technique is called remote real-time control (RRTC). The ...Read more
Author:Belyi, VN; Forbes, A; Kazak, NS; Khilo, NA; Ropot, PIDate:Aug 2009A new type of Bessel-like optical beams, which is distinguished by the dependence on the cone angle from the longitudinal coordinate, is investigated. Such beams have the properties of Bessel beams (ring-spatial spatial spectrum) as well as ...Read more
Author:Meyer, Rory GV; Schwegmann, Colin P; Kleynhans, WaldoDate:Jul 2017The detection and classification of SAR imaged vessels at sea is a valuable ability for organisations interested in the marine environment or marine vessels. Matching the SAR detected vessels to their AIS messages allows vessels to be identified ...Read more
Author:Grobler, MM; Von Solms, SHDate:Jul 2009The development of the Live Forensic discipline instigates the development of a method that allows forensically sound acquisition to stand fast in a court of law. The study presents the development of a comprehensive model for forensically ...Read more