Author:Matsebe, O; Namoshe, M; Tlale, NDate:2010The goal of the chapter is to provide an opportunity for researchers who are new to, or interested in, this exciting area of research with the basics, background information, major issues, and the state-of-the-art as well as future challenges ...Read more
Author:Foundation for Research Development, (Ecosystems section)Date:1985The Seminar on Basic Needs in Rural Areas was organized to provide an opportunity for interaction between researchers and decision-makers. Various aspects of basic needs in rural areas were covered. Papers delivered on the following topics ...Read more
Author:Page-Shipp, RJDate:10 Sep 1980This article correctly reflects the principles of Solar Water Heating as they pertain to South African conditions. However, it was written in 1980 and the global energy situation has changed considerably. Furthermore, modern commercial units ...Read more
Author:Van Heerden, C; Barnard, E; Davel, MDate:Sep 2009Spoken dialogue systems (SDSs) have great potential for information access in the developing world. However, the realisation of that potential requires the solution of several challenging problems, including the development of sufficiently ...Read more
Author:Pandarum, Aradhna; Rakaibe, Tshwanelo K; Mbam, VuyoDate:Oct 2023South Africa is confronted by the triple threat of inequality, poverty, and unemployment and has the highest inequality and unemployment rate in the world. The energy transition to a low carbon economy offers significant opportunity for the ...Read more
Author:Hernandez-Leal, P; Rosman, Benjamin S; Taylor, ME; Sucar, LE; de Cote, EMDate:Feb 2016In many situations, agents are required to use a set of strategies (behaviors) and switch among them during the course of an interaction. This work focuses on the problem of recognizing the strategy used by an agent within a small number of ...Read more
Author:Botha, L; Meyer, Thomas; Penaloza, RDate:Oct 2018Description Logics (DLs) that support uncertainty are not as well studied as their crisp alternatives, thereby limiting their use in real world domains. The Bayesian DL BEL and its extensions have been introduced to deal with uncertain knowledge ...Read more
Author:Claessens, R; De Waal, A; De Villiers, Pieter; Penders, A; Pavlin, G; Tuyls, KDate:Apr 2016The range of applications that require processing of temporally and spatially distributed sensory data is expanding. Common challenges in domains with these characteristics are sound reasoning about uncertain phenomena and coping with the ...Read more
Author:Rosman, Benjamin S; Hawasly, M; Ramamoorthy, SDate:Feb 2016A long-lived autonomous agent should be able to respond online to novel instances of tasks from a familiar domain. Acting online requires `fast' responses, in terms of rapid convergence, especially when the task instance has a short duration ...Read morecb
Author:Kim, S; Das, Sonali; Chen, M-H; Warren, NDate:Mar 2008Motivated by a large multilevel survey conducted by the US Veterans Health Administration (VHA), we propose a structural equations model which involves a set of latent variables to capture dependence between different responses, a set of ...Read more
Author:Kim, S; Das, Sonali; Chen, M-H; Warren, NDate:Jan 2009Structural equations models (SEMs) have been extensively used to model survey data arising in the fields of sociology, psychology, health, and economics with increasing applications where self assessment questionnaires are the means to collect ...Read more
Author:Mokilane, P.M.; Debba, Pravesh; Venkata, Y.S.S.; Sigauke, CDate:Mar 2019The paper presents an application of Bayesian structural time-series model to forecast long-term electricity demand. Accurate trend specification in long-term forecasting is important; otherwise erroneous forecasts could be obtained especially ...Read more
Author:Dlamini, Moses T; Eloff, MM; Eloff, JHP; Hone, KDate:Jul 2009The entire business landscape finds itself on the verge of a recession because of ongoing global economic turmoil. Thus, there is a heightened need to minimise and mitigate business risk and scrutinise information spending while ensuring ...Read more
Author:Rens, G; Ferrein, A; Van der Poel, EDate:Jun 2009Traditionally, agent architectures based on the Belief-Desire-Intention (BDI) model make use of precompiled plans, or if they do generate plans, the plans do not involve stochastic actions nor probabilistic observations. Plans that do involve ...Read more
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:Litvin, Igor A; King, Gary R; Strauss, Hencharl JDate:Jun 2017We propose a novel intra-cavity laser beam shaping technique based on the manipulation of the transverse gain profile in the laser crystal. The method allows controllable reshaping of a laser output beam into a desired beam profile. Two laser ...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:Schulze, C; Flamm, D; Duparré, M; Forbes, ADate:Nov 2012We present a fast and easy technique for measuring the beam propagation ratio, M2, of laser beams using a spatial light modulator. Our technique is based on digitally simulating the free-space propagation of light, thus eliminating the need ...Read more
Author:Berger, DK; Oelofse, D; Arendse, MS; Du Plessis, E; Dubery, IADate:Jul 2000Stenocarpella maydis, a fungal pathogen of maize, produced polygalacturonases (PGs) when grown on pectin or maize cell walls. An extract from bean (Phaseolus vulgaris L.) which contained an active inhibitor of Aspergillus niger PG, also ...Read more