Browsing Conference Papers - Vaal Triangle Campus by Issue Date
Now showing items 1-20 of 84
-
Response Surface Modeling and Optimization to Elucidate the Differential Effects of Demographic Characteristics on HIV Prevalence in South Africa
(Southern Arican Institute for industrial engineering (SAIIE), 2012)In this study, a Central Composite Face Centered (CCF) design was employed to study the individual and interaction effects of demographic characteristics on the spread of HIV in South Africa. The demographic characteristics ... -
Tone realisation in a Yorùbá speech recognition corpus
(SLTU, 2012)We investigate the acoustic realisation of tone in short continuous utterances in Yorùbá. Fundamental frequency (F0) contours are extracted for automatically aligned syllables from a speech corpus of 33 speakers collected ... -
Response Surface Modeling and Optimization to Elucidate the Differential Effects of Demographic Characteristics on HIV Prevalence in South Africa
(IEEE, 2012)In this study, a Central Composite Face Centered (CCF) design was employed to study the individual and interaction effects of demographic characteristics on the spread of HIV in South Africa. The demographic characteristics ... -
Innovative Teaching in Systems Analysis and Design - an Action Research Project
(WASET, 2012)Systems Analysis and Design is a key subject in Information Technology courses, but students do not find it easy to cope with, since it is not “precise" like programming and not exact like Mathematics. It is a subject ... -
A critical social research perspective on self-directed learning and information technology practitioners
(WASET, 2012)Information systems practitioners are frequently required to master new technology, often without the aid of formal training. They require the skill to manage their own learning and, when this skill is developed in their ... -
Critical thinking perspectives on work integrated learning in information systems education
(WASET, 2012)Students with high level skills are in demand, especially in scare skill environments. If universities wish to be successful and competitive, its students need to be adequately equipped with the necessary tools. Work ... -
Multilingual pronunciations of proper names in a Southern African corpus
(Pattern recognition association of South Africa (PRASA), 2012)We present our process for the development and analysis of a multilingual names corpus, called Multipron-split. It is derived from Multipron, a corpus collected in previous work [1], where names and speakers were drawn ... -
Improved transition models for cepstral trajectories
(Pattern recognition association of South Africa (PRASA), 2012)We improve on a piece-wise linear model of the trajectories of Mel Frequency Cepstral Coefficients, which are commonly used as features in Automatic Speech Recognition. For this purpose, we have created a very clean ... -
Comparing grapheme-based and phoneme-based speech recognition for Afrikaans
(PRASA, 2012)This paper compares the recognition accuracy of a phoneme-based automatic speech recognition system with that of a grapheme-based system, using Afrikaans as case study. The first system is developed using a conventional ... -
Validating smartphone-collected speech corpora
(SLTU, 2012)We investigate the effectiveness with which the accuracy of a prompted speech corpus can be validated when minimal additional speech resources are available, and specifically when a language model in the target language ... -
Automatic alignment of audiobooks in Afrikaans
(Pattern recognition association of South Africa (PRASA), 2012)This paper reports on the automatic alignment of audiobooks in Afrikaans. An existing Afrikaans pronunciation dictionary and corpus of Afrikaans speech data are used to generate baseline acoustic models. The baseline system ... -
Medium-vocabulary speech recognition for under-resourced languages
(SLTU, 2012)We report on the development of speech-recognition systems that are able to perform accurate recognition on mediumvocabulary tasks (i.e. tasks that require distinctions between approximately 200 different terms). We are ... -
Effects of application type on the choice of interaction modality in IVR systems
(Unisa Press, 2012)This paper addresses the feasibility of using the telephone as a tool for information access in the technology challenged and illiterate communities of Southern Africa. We did two case studies of disparate Interactive Voice ... -
Towards lecture transcription in resource-scarce environments
(Pattern recognition association of South Africa (PRASA), 2012)We present progress towards automated Lecture Transcription (LT) in resource scarce environments. Our development has focused on the transcription of lectures in Afrikaans from two faculties at North-West University. A ... -
Context-dependent modelling of English vowels in Sepedi code-switched speech
(Pattern recognition association of South Africa (PRASA), 2012)When modelling code-switched speech (utterances that contain a mixture of languages), the embedded language often contains phones not found in the matrix language. These are typically dealt with by either extending the ... -
WhatsApp with BlackBerry; can messengers be MXit? A philosophical approach to evaluate social networking sites
(Cape Peninsula University of Technology, 2012)In an Information Technology course, learners are confronted with learning about technology; programming, other technical subjects and some mathematics and statistics. Although learners can struggle with the logical thinking ... -
Building Capacity and Developing Human capital
(Routledge Taylor & Francis Group, 2012)There is a growing consensus on the potential for information and communications technologies (ICTs) to support socio-economic development in sub-Saharan Africa (SSA). Universities as providers of higher education are ... -
Using Critical Systems thinking to Improve Student Performance in Networking
(WASET, 2012)This paper explores how Critical Systems Thinking and Action Research can be used to improve student performance in Networking. When describing a system from a systems thinking perspective, the following aspects can be ... -
A voice service for user feedback on school meals
(ACM, 2012)Research using voice-based services as a technology platform for providing information access and services within developing world regions has shown much promise. The results for design and deployment of such voice-based ... -
Implementing the uses of ict in agro - products to improve market information services: challenges and opportunities for Tanzania
(Global business and technology association, 2012)The need to provide agricultural information for improving agro products market information has led to emergence of numerous ICT-based projects in developing country. These projects aim at promoting commercialization of ...