African University of Science and Technology: Recent submissions
Now showing items 1101-1120 of 4828
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Robust and cheating-resilient power auctioning on Resource Constrained Smart Micro-Grids
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2018)The principle of Continuous Double Auctioning (CDA) is known to provide an efficient way of matching supply and demand among distributed selfish participants with limited information. However, the literature indicates that ...
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Modelling evolving clinical practice guidelines: a case of Malawi
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2018)Electronic medical record (EMR) systems are increasingly being adopted in low- and middle-income countries. This provides an opportunity to support task-shifted health workers with guideline-based clinical decision support ...
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Tight Binding Descriptions of Graphene and Its Derivatives
(2017-12-20)Graphene is an effectively two dimensional form of carbon atoms arranged in honeycomb lattice. Due to its lightweight, high electron mobility and other special electronic properties it is considered both an academically ...
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Using Active Learning to Synthesize Models of Applications That Access Databases
(2018-08-28)We present a new technique that uses active learning to infer models of applications that manipulate relational databases. This technique comprises a domain-specific language for modeling applications that access ...
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Are there testable discrete Poincaré invariant physical theories?
(IOP PublishingClassical and Quantum Gravity, 2018-09-05)In a model of physics taking place on a discrete set of points that approximates Minkowski space, one might perhaps expect there to be an empirically identifiable preferred frame. However, the work of Dowker et al (2004 ...
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An Introduction to Ontology Engineering
(University of Cape TownUniversity of Cape TownFaculty of ScienceDepartment of Computer Sciencehttps://people.cs.uct.ac.za/~mkeet/files/OEbook.pdf, 2018-07-16)An Introduction to Ontology Engineering is a free online textbook that provides an overview of ontology engineering, including logics and automated reasoning, methods and methodologies, top-down ontology development with ...
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Adhesion and Optoelectronic Properties of Organic Light Emitting Devices (OLEDs) and Hybrid Organic-Inorganic Light Emitting Devices (HOILEDs) with Tio 2 Nano-Particles
(2010-12-17)This study examines the basic operation of an Organic Light Emitting Device (OLED) and Hybrid Organic-Inorganic Light Emitting Devices (HOILED) by looking at the individual characteristics of the each layer which makes up ...
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Data and Code for "A New Approach to Animacy Detection"
(2018-06-07)This archive contains the code and data for the workshop article "A New Approach to Animacy Detection," published in 2018 in the the 27th International Conference on Computational Linguistics (COLING 2018), in Santa Fe, ...
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Usability heuristics for fast crime data anonymization in resource-constrained contexts
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2018)This thesis considers the case of mobile crime-reporting systems that have emerged as an effective and efficient data collection method in low and middle-income countries. Analyzing the data, can be helpful in addressing ...
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Best-first Enumeration Based on Bounding Conflicts, and its Application to Large-scale Hybrid Estimation
(2018-05-24)With the rise of autonomous systems, there is a need for them to have high levels of robustness and safety. This robustness can be achieved through systems that are self-repairing. Underlying this is the ability to diagnose ...
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Learning Models of Sequential Decision-Making without Complete State Specification using Bayesian Nonparametric Inference and Active Querying
(2018-05-17)Learning models of decision-making behavior during sequential tasks is useful across a variety of applications, including human-machine interaction. In this paper, we present an approach to learning such models within ...
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Analytic solutions for reduced leading-edge noise aerofoils
(American Institute of Aeronautics and Astronautics2018 AIAA/CEAS Aeroacoustics Conference, 2018-01-01)This paper presents an analytic solution for the sound generated by an unsteady gust interacting with a semi-infinite flat plate with a piecewise linear periodic leading edge. The Wiener-Hopf method is used in conjunction ...
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Generalization in Deep Learning
(2018-05-01)With a direct analysis of neural networks, this paper presents a mathematically tight generalization theory to partially address an open problem regarding the generalization of deep learning. Unlike previous bound-based ...
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Grammars for generating isiXhosa and isiZulu weather bulletin verbs
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2018)The Met Office has investigated the use of natural language generation (NLG) technologies to streamline the production of weather forecasts. Their approach would be of great benefit in South Africa because there is no fast ...
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Designing with community health workers: feedback-integrated multimedia learning for rural community health
(University of Cape TownFaculty of ScienceFaculty Science: ICTC4D, 2018)Community Health Workers (CHWs) are an integral part of the rural health system, and it is imperative that their voices are accommodated in digital health projects. In the mobile health education project discussed in this ...
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Neuro-evolution behavior transfer for collective behavior tasks
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2018)The design of effective, robust and autonomous controllers for multi-agent and multi-robot systems is a long-standing problem in the fields of computational intelligence and robotics. Whilst nature-inspired problem-solving ...
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Typing training through gamification
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2018)
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Strong cosmic censorship in de Sitter space
Recent work indicates that the strong cosmic censorship hypothesis is violated by nearly extremal Reissner-Nordstrom-de Sitter black holes. It was argued that perturbations of such a black hole decay sufficiently rapidly ...
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Relativistic magnetised perturbations: Magnetic pressure versus magnetic tension
(IoPClassical and Quantum Gravity, 2018-05-16)We study the linear evolution of magnetised cosmological perturbations in the post-recombination epoch. Using full general relativity and adopting the ideal magnetohydrodynamic approximation, we refine and extend the ...
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Algorithms for efficiently and effectively matching agents in microsimulations of sexually transmitted infections
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2018)Mathematical models of the HIV epidemic have been used to estimate incidence, prevalence and life-expectancy, as well the benefits and costs of public health interventions, such as the provision of antiretroviral treatment. ...


