Department of Computer Science: Recent submissions
Now showing items 81-100 of 119
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Affective gesture fast-track feedback instant messaging (AGFIM)
(University of Western Cape, 2005)Text communication is often perceived as lacking some components of communication that are essential in sustaining interaction or conversation. This interaction incoherency tends to make text communication plastic. It is ... -
Virtual human modelling and animation for real-time sign language visualisation
(University of the Western Cape, 2008)This thesis investigates the modelling and animation of virtual humans for real-time sign language visualisation. Sign languages are fully developed natural languages used by Deaf communities all over the world. These ... -
Policy based network management of legacy network elements in next generation networks for voice services
(University of the Western Cape, 2002)Telecommunication companies, service providers and large companies are now adapting converged multi-service Next Generation Networks (NGNs). Network management is shifting from managing Network Elements (NE) to managing ... -
Inexpensive mobile technologies to empower rural farmers with m-agriculture
(University of the Western Cape, 2010)Market information and established communication between seller and buyer play an important role in business activities. This thesis investigates the Transkei area in the Eastern Cape Province, South Africa to find out ... -
Situation-aware routing for wireless mesh networks with mobile nodes
(University of the Western Cape, 2012)This thesis demonstrates that a situation-aware algorithm improves quality of service on small mesh networks running BATMAN-adv with some mobile nodes. BATMAN-adv is a proactive mesh routing protocol that counts beacons ... -
Mobility management for Wi-Fi infrastructure and mesh networks
(University of the Western Cape, 2012)This thesis shows that mobility management protocols for infrastructure Internet may be used in a wireless mesh network environment. In this research Mobile IPv6 and Fast Handover for Hierarchical Mobile IPv6 are successfully ... -
Carrier grade adaptation for an IP-based multimodal application server: moving the softbridge into SLEE
(University of the Western Cape, 2004)Providing carrier grade characteristics for Internet Protocol (IP) communication applications is a significant problem for IP application providers in order to offer integrated services that span IP and telecommunication ... -
A Mobile Deaf-to-hearing communication aid for medical diagnosis
(University of the Western Cape, 2011)Many South African Deaf people use their mobile phones for communication with SMSs yet they would prefer to converse in South African Sign Language. Deaf people with a capital `D' are different from deaf or hard of hearing ... -
An analysis of voice over internet protocol in wireless mesh networks
(University of the Western Cape, 2012)This thesis presents an analysis of the impact of node mobility on the quality of service for voice over Internet Protocol in wireless mesh networks. Voice traffic was simulated on such a mesh network to analyze the ... -
Comparison and evaluation of mass video notification methods used to assist Deaf people
(University of the Western Cape, 2012)In South Africa, Deaf people communicate with one another and the broader community by means of South African Sign Language. The majority of Deaf people who have access to a mobile phone (cell phone) use Short Message ... -
A digital identity management system
(UWC, 2007)The recent years have seen an increase in the number of users accessing online services using communication devices such as computers, mobile phones and cards based credentials such as credit cards. This has prompted most ... -
Robust recognition of facial expressions on noise degraded facial images
(University of the Western Cape, 2011)We investigate the use of noise degraded facial images in the application of facial expression recognition. In particular, we trained Gabor+SVMclassifiers to recognize facial expressions images with various types of noise. ... -
Rendering an avatar from sign writing notation for sign language animation
(University of the Western Cape, 2010)This thesis presents an approach for automatically generating signing animations from a sign language notation. An avatar endowed with expressive gestures, as subtle as changes in facial expression, is used to render the ... -
An intelligent vertical handoff decision algorithm in next generation wireless networks
(University of the Western Cape, 2010)The objective of the thesis research is to design such vertical handoff decision algorithms in order for mobile field workers and other mobile users equipped with contemporary multimode mobile devices to communicate ... -
A technique for the evaluation of free and open source e-learning systems
(University of the Western Cape, 2010)Evaluating software is a universal and complex problem. The question is: how should software be selected and adopted, or rather, which of the software packages is the most suitable for a specific environment? Extensive ... -
South African sign language recognition using feature vectors and Hidden Markov Models
(University of the Western Cape, 2010)This thesis presents a system for performing whole gesture recognition for South African Sign Language. The system uses feature vectors combined with Hidden Markov models. In order to constuct a feature vector, dynamic ... -
The efficacy of the Eigenvector approach to South African sign language identification
(University of the Western Cape, 2010)The communication barriers between deaf and hearing society mean that interaction between these communities is kept to a minimum. The South African Sign Language research group, Integration of Signed and Verbal Communication: ... -
The Complexity of Splay Trees and Skip Lists
(University of the Western Cape, 2008)Our main results are that splay trees are faster for sorted insertion, where AVL trees are faster for random insertion. For searching, skip lists are faster than single class top-down splay trees, but two-class and multi-class ... -
KernTune: self-tuning Linux kernel performance using support vector machines
(University of the Western Cape, 2006)Self-tuning has been an elusive goal for operating systems and is becoming a pressing issue for modern operating systems. Well-trained system administrators are able to tune an operating system to achieve better system ... -
The use of mobile phones as service-delivery devices in sign language machine translation system
(University of the Western Cape, 2010)This thesis investigates the use of mobile phones as service-delivery devices in a sign language machine translation system. Four sign language visualization methods were evaluated on mobile phones. Three of the methods ...