Research Articles (Computer Science and Informatics)
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Permissionless blockchain systems as pseudo-random number generators for decentralized consensus
(IEEE, 2023)Consensus algorithms that function in permissionless blockchain systems must randomly select new block proposers in a decentralised environment. Our contribution is a new blockchain consensus algorithm called Proof-of-Publicly ... -
Virtual prospecting in palaeontology using a drone-based orthomosaic map: an eye movement analysis
(MDPI, 2021)Paleontological fieldwork is often a time-consuming process and resource intensive. With unexplored and remote areas, the satellite images, geology, and topography of an area are analyzed to help survey for a site. A ... -
Teaching human-computer interaction modules - and then came COVID-19
(Frontiers, 2022)In teaching Human-Computer Interaction at university level, it has always been beneficial to explain the related theory and engage students in a practical way, whether individually or in groups. And then came COVID-19. ... -
Embedding tamper-resistant, publicly verifiable random number seeds in permissionless blockchain systems
(IEEE, 2022)Many blockchain processes require pseudo-random numbers. This is especially true of blockchain consensus mechanisms that aim to fairly distribute the opportunity to propose new blocks between the participants in the system. ... -
A model selection procedure for stream re-aeration coefficient modelling
(Canadian Center of Science and Education (CCSE), 2015)Model selection is finding wide applications in a lot of modelling and environmental problems. However, applications of model selection to re-aeration coefficient studies are still limited. The current study explores ... -
Analysis of auto-purification response of the Apies River, Gauteng, South Africa, to treated wastewater effluent
(Water Research Commission, 2016)The assimilative capacity of water bodies is an important factor in the integrated management of surface water resources. The current study examined the auto-recovery processes of the Apies River from wastewater discharged ... -
Visual dimensions of academic discourse in higher education
(Department of Communication Science, University of the Free State, 2010)This article explores the visual nature of academic discourse within Higher Education in South Africa. It provides insight into the increasing influence of the visual in academic writing – arguing that the materiality ... -
AutoCal: A software application for calibrating photometric data
(Academy of Science of South Africa (ASSAf), 2016)We present a software application for the calibration of stellar magnitudes in the absence of standard stars. It uses an existing algorithm to match stars in the target’s field of view to catalogue entries and computes the ...