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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 ...