University of Cape Town: Recent submissions
Now showing items 241-260 of 311
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Field D* pathfinding in weighted simplicial complexes
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2013)The development of algorithms to efficiently determine an optimal path through a complex environment is a continuing area of research within Computer Science. When such environments can be represented as a graph, established ...
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Peer-to-peer systems for simple and flexible information sharing
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2009)Peer to peer computing (P2P) is an architecture that enables applications to access shared resources, with peers having similar capabilities and responsibilities. The ubiquity of P2P computing and its increasing adoption ...
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Photo searching on small screen devices
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2007)The aim of this thesis is to improve HCI (Human-Computer Interaction) knowledge in the design of the next generation of photo search tools on small display devices. Today, these devices have all the ingredients for a truly ...
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Intelligent detection of anomalies in telecommunications customer behaviour
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2006)In this research, we present a modelling technique that can efficiently facilitate anomaly detection that will help call analysts and managers with adaptive decision-making. We developed and implemented a Data 'fransformation ...
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Computational intelligent systems : evolving dynamic Bayesian networks
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2009)In this thesis, a new class of temporal probabilistic modelling, called evolving dynamic Bayesian networks (EDBN), is proposed and demonstrated to make technology easier so as to accommodate both experts and non-experts, ...
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The design and evaluation of a Java image analysis tool for componentizing lines from digitial architectural floor plans
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2006)This research set out to determine the feasibility of using Java to create a tool that could perform paper-to-electronic format conversion by vectorizing the lines in a raster image of an architectural floor plan. The tool ...
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Universal web application server
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2007)The growth of the World Wide Web has in large part been made possible by the technologies that power it. These are the Web servers and Web browsers that many take for granted. Each has evolved to support the changing needs ...
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A capacity limited, cognitive constructionist model of virtual presence
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2007)The capacity Limited, Cognitive Constructionist (CLCC) model of presence is proposed as an information processing model of presence, which is demonstrated to have more theoretical power than extant models. The CLCC model ...
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An extended spreadsheet paradigm for data visualisation systems, and its implementation
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2000)We describe a data visualisation system which uses spreadsheets as its user interface metaphor. Similar systems implemented in the past were hampered by the contradiction between an imperative formula language and the ...
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Distributed authentication to preserve privacy through smart card based biometric matching
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2000)This thesis focuses on privacy concerns, specifically those relating to the storage and use of biometrics. These concerns result from the fact that biometric information is unique. This uniqueness makes the biometric a ...
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A comparison of statistical and geometric reconstruction techniques : guidelines for correcting fossil hominin crania
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2007)The study of human evolution centres, to a large extent, around the study of fossil morphology, including the comparison and interpretation of these remains within the context of what is known about morphological variation ...
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An open source model for teaching environments incorporating wireless devices
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2007)Attempts have been made at bridging the digital divide in schools using desktop PC systems without much success. As a result many computer laboratories sit empty. There are many reasons for these failures. Often there are ...
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Mixed-Language Arabic- English Information Retrieval
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2013)This thesis attempts to address the problem of mixed querying in CLIR. It proposes mixed-language (language-aware) approaches in which mixed queries are used to retrieve most relevant documents, regardless of their languages. ...
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Measuring the applicability of open data standards to a single distributed organisation : an application to the COMESA Secretariat
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2008)This dissertation develops data metrics that represent the extent to which data standards can be applied to an organization's data. The research identified key issues that affect data interoperability or the feasibility ...
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An end-to-end solution for complex open educational resources
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2012)
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Flexible packaging methodologies for rapid deployment of customisable component-based digital libraries
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2006)Software engineering is a discipline concerned with manufacturing or developing software. Software plays a pivotal role in everyday life, an absence of which will be devastating to a number of governmental, recreational ...
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A linear framework for character skinning
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2007)Character animation is the process of modelling and rendering a mobile character in a virtual world. It has numerous applications both off-line, such as virtual actors in films, and real-time, such as in games and other ...
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Assessing the suitability of user centric design methods when applied in a developing world context
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2010)The application of information and communication technologies to development (ICT4Dev) is widely believed to have the potential to improve livelihoods in developing regions. Within the field of HCI, it is recognised that ...
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A lossy, dictionary -based method for short message service (SMS) text compression
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2009)Short message service (SMS) message compression allows either more content to be fitted into a single message or fewer individual messages to be sent as part of a concatenated (or long) message. While essentially only ...
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Model driven segmentation and the detection of bone fractures
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2004)The introduction of lower dosage image acquisition devices and the increase in computational power means that there is an increased focus on producing diagnostic aids for the medical trauma environment. The focus of this ...