Author:Rens, G; Meyer, T; Ferrein, A; Lakemeyer, GDate:Jul 2011The authors propose a novel modal logic for specifying agent domains where the agent’s actuators and sensors are noisy, causing uncertainty in action and perception. The logic draws both on POMDP theory and logics of action and change. The ...Read more
Author:Rens, G; Meyer, T; Lakemeyer, GDate:Mar 2014We present a logic inspired by partially observable Markov decision process (POMDP) theory for specifying agent domains where the agent's actuators and sensors are noisy (causing uncertainty). The language features modalities for actions and ...Read more
Author:Veerasamy, Namosha; Grobler, MMDate:2015The merging of terrorism with the cyber domain introduces the potential for using computers and networked technologies in cyberspace to carry out extremist activities. Despite the current debate on whether cyberterrorism can be regarded as ...Read more
Author:Viljoen, NDate:Oct 2012This presentation discusses some of the operational constraints and opportunities humanitarian organisations and informal businesses face.Read more
Author:Botha, M; Ittmann, HWDate:Jul 2008Logistics hubs are very well established internationally and many examples exist where these have been successfully built and implemented. This success have lead to the proliferation of such hubs and in South Africa there are many "decision ...Read more
Author:Ittmann, HWDate:May 2008Urbanisation, coupled with sustained economic growth, implies that more and more goods and commodities need to be supplied to urban areas. This trend has been observed world-wide in the last number of years. Whereas researchers in the past ...Read more
Author:Duvenhage, BDate:Nov 2015Turbulent pockets of air in the atmosphere blur and disrupt the Point Spread Function (PSF) of a surveillance system. The PSF peak is offset in location, changed in size and in short exposures (or mild conditions) noticeably fragmented or ...Read more
Author:Ismail, Y; Barnes, G; Mhlanga, T; Belyi, V; Forbes, ADate:Mar 2010In this paper the authors outline an optical design for producing high-order Bessel-like beams with a z-dependent cone angle through the use of conventional optical elements, without the need for deliberate aberrations to be included.Read more
Author:Dheda, D; Cheng, L; Abu-Mahfouz, Adnan MIDate:Feb 2022A predictive long short-term memory (LSTM) model developed on a particular water quality dataset will only apply to the dataset and may fail to make an accurate prediction on another dataset. This paper focuses on improving LSTM model tolerance ...Read more
Author:Magoon, OT; Treadwell, DD; Edge, BL; Lynett, PJ; Phelp, DavidDate:Jul 2007Completed in 1977, the Reef Runway embankment at Honolulu International Airport was created by placing and compacting millions of cubic meters of dredged coral fill material over an existing coral reef. The wave protection structure on the ...Read more
Author:Nonyane, DR; Thokozani, MDate:May 2012Most of the methodologies published in literature on wastewater minimisation for batch processes are based on short term scheduling techniques. When these methods are applied to longer time horizons, the computational time becomes intractable, ...Read more
Author:Macdonald, IAW; Crawford, RJMDate:1988This volume presents the proceedings of a conference held to review the state of knowledge on long-term data series from southern African ecosystems. Three chapters relate to marine environments: those of the West Coast shelf, the South-East ...Read more
Author:Ratsele, C; Dube, S; Lesoli, MSDate:Nov 2010Sprouting allows woody plant species to persist in a site after a wide range of disturbances (e.g. prolonged fire), where opportunities for seedling establishment are limited. A study to investigate long-term effects of fire sprouting of woody ...Read more
Author:Mokilane, Paul M; Debba, Pravesh; Yadavalli, VSS; Sigauke, CDate:Nov 2018The paper discusses the development and application of GAMMQV in forecasting the long-term electricity demand in South Africa. The long-term hourly demand from 2007 to 2023 with in-sample forecasts from 2007 to 2012 and out-of-sample forecasts ...Read more
Author:Komba, Julius J; Anochie-Boateng, Joseph; O'Connell, Johannes S; Verhaeghe, Benoit MJADate:Sep 2016Enrobé à Module Élevé (EME) technology, a High Modulus Asphalt (HiMA), was originally developed in France. The technology is primarily suitable for construction of heavily trafficked routes, airports and container terminals. The key performance ...Read more
Author:Steenkamp, Karen C; Wessels, Konrad J; Archibald, S; Von Maltitz, Graham PDate:Nov 2008Satellite-derived phenology allows monitoring of terrestrial vegetation on a global scale and provides an integrative view at the landscape level. Understanding these seasonal phenological patterns is essential to (i) the characterisation and ...Read more
Author:Keaikitse, M; Brink, W; Govender, NatashaDate:Nov 2014Detection and tracking are important components of many computer vision applications including automated surveillance. Object detection should overcome challenges such as changes in object appearances, illumination, and shadows. In our system, ...Read more
Author:Davis, CL; Hoffman, MT; Roberts, WDate:Jul 2017Vegetation monitoring of arid and semi-arid environments using remotely sensed vegetation indices over long periods of time is essential to improve the understanding of the processes related to change. In this paper, 30 years of biweekly AVHRR ...Read more