Open Access Repositories: Recent submissions
Now showing items 1321-1340 of 4204
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Accelerating genomic sequence alignment using high performance reconfigurable computers
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2008)Reconfigurable computing technology has progressed to a stage where it is now possible to achieve orders of magnitude performance and power efficiency gains over conventional computer architectures for a subset of high ...
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XSnap : a queueing network analysis package
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 1992)This dissertation describes the design and implementation of a sophisticated X-Windows based modelling package called XSnap, which can be used to solve product-form mixed multi-class queueing networks. A Graphical User ...
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HOOD : a Higher-Order Object-Oriented Database model and its implementation
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 1992)There is no accepted standard for the object-oriented database paradigm at present, which has led to different definitions of features and conformance requirements. HOOD is a Higher-Order Object-Oriented Database system ...
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Towards a general framework for Digital Rights Management (DRM)
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2007)Digital rights management (DRM) can be defined as a technology that enables persistent access control. The common understanding of DRM is that of a technology that enables means to thwart piracy of digital multimedia through ...
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Office automation
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 1989)Office automation systems have become an essential tool for the operation of the modern office. With the emphasis of a modern office being placed on efficiency and ease of communication, office automation systems have ...
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A file server for the DistriX prototype : a multitransputer UNIX system
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 1989)The DISTRIX operating system is a multiprocessor distributed operating system based on UNIX. It consists of a number of satellite processors connected to central servers. The system is derived from the MINIX operating ...
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An Analysis of the Search Spaces for Generate and Validate Patch Generation Systems
(2016-02-18)We present the first systematic analysis of the characteristics of patch search spaces for automatic patch generation systems. We analyze the search spaces of two current state-of- the-art systems, SPR and Prophet, with ...
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P-Pascal : a data-oriented persistent programming language
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 1991)Persistence is measured by the length of time an object is retained and is usable in a system. Persistent languages extend general purpose languages by providing the full range of persistence for data of any type. Moreover, ...
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Using CAMAC hardware for access to a particle accelerator
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 1988)The design and implementation of a method to software interface high level applications programs used for the control and monitoring of a Particle Accelerator is described. Effective methods of interfacing the instrumentation ...
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The implementation of a front end processor for a subset of ADA
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 1983)ADA is a high level programing language sponsored by the United States Department of Defence primarily for use in real-time systems. It has all the structures present in modern algorithmic languages with additional features ...
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Outlier Detection in Heterogeneous Datasets using Automatic Tuple Expansion
(2016-02-08)Rapidly developing areas of information technology are generating massive amounts of data. Human errors, sensor failures, and other unforeseen circumstances unfortunately tend to undermine the quality and consistency of ...
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Homeostatic Activity-Dependent Tuning of Recurrent Networks for Robust Propagation of Activity
(Society for NeuroscienceJournal of Neuroscience, 2016-03-30)Developing neuronal networks display spontaneous bursts of action potentials that are necessary for circuit organization and tuning. While spontaneous activity has been shown to instruct map formation in sensory circuits, ...
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The semantic database model as a basis for an automated database design tool
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 1983)The automatic database design system is a design aid for network database creation. It obtains a requirements specification from a user and generates a prototype database. This database is compatible with the Data Definition ...
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The response of the lower stratosphere to zonally symmetric thermal and mechanical forcing.
(American Meteorological SocietyJournal of the Atmospheric Sciences, 2016-04-15)The response of the atmosphere to zonally symmetric applied heating and mechanical forcing is considered, allowing for the fact that the response may include a change in the wave force (or ‘wave drag’). A scaling argument ...
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The double peak in upwelling and heating in the tropical lower stratosphere.
(American Meteorological SocietyJournal of the Atmospheric Sciences, 2016-04-15)The processes responsible for double peak latitudinal structures in the time averaged tropical lower stratospheric upwelling, centred near 70hPa and 20º N–S, previously noted in ERA-Interim and other reanalysis and model ...
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Refactoring learning management systems for multi-device use in developing countries
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2015)Although learning management systems (LMSs) have been widely adopted by universities in developing countries, their potential to support students' learning has not been fully exploited due to several factors. Some of the ...
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Marginalization and conditioning for LWF chain graphs
(Institute of Mathematical StatisticsAnnals of Statistics, 2016-08)In this paper, we deal with the problem of marginalization over and conditioning on two disjoint subsets of the node set of chain graphs (CGs) with the LWF Markov property. For this purpose, we define the class of chain ...
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Light-induced self-assembly of active rectification devices.
(Science advances, 2016-04)
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Supporting mobile developers through a Java IDE
(University of Cape TownFaculty of ScienceDepartment of Computer Science, 2008)There exist several challenges in supporting mobile applications. For example, creating a separate target application for each device type, leaving developers with a huge maintenance chore. Most desktop applications run ...
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Twisting algebraically special solutions in five dimensions
(Institute of PhysicsClassical and Quantum Gravity, 2016)We determine the general form of the solutions of the five-dimensional vacuum Einstein equations with cosmological constant for which (i) the Weyl tensor is everywhere type II or more special in the null alignment ...
