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Browsing Human language technologies by Title

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  • Van Dyk, E; Barnard, E (18th Annual Symposium of the Pattern Recognition Association of South Africa (PRASA), 2007-11)
    The authors investigate the use of naive Bayesian classifiers for multinomial feature spaces and derive error estimates for these classifiers. The error analysis is done by developing a mathematical model to estimate the ...
  • De Waal, AJ; Louis, AL; Venter, JP (2006-10)
    Named Entity Recognition (NER) is the process of identifying occurrences of words or expressions as belonging to a particular category of a Named Entity (NE).The aim of the project was to test the feasibility of a probabilistic ...
  • Butgereit, LL (Cape Peninsula University of Technology, 2009-09)
    The National Accessibility Portal is a web respository of information for South Africans living with disabilities. Information stored on the portal include copies of legislation applicable to people with disabilities, lists ...
  • Barnard, E; Davel, MH; Van Heerden, C; De Wet, Febe; Badenhorst, J (2014-05)
    The NCHLT speech corpus contains wide-band speech from approximately 200 speakers per language, in each of the eleven of cial languages of South Africa. We describe the design and development processes that were undertaken ...
  • Louw, Johannes A (Ruzica Piskac, 2019-12)
    Recent work in sequence-to-sequence neural networks with attention mechanisms, such as the Tacotron 2 and DCTTS architectures, have brought on substantial naturalness improvements in synthesised speech. These architectures ...
  • McAlister, BN; Steyn, JL (IEEE, 2012-08)
    The potential applicability of established new product development processes to information and communications technology (ICT)-for-development projects is investigated. The demand for ICT solutions to serve numerous ...
  • Molapo, R; Barnard, E (Pattern Recognition Association of South Africa, 2014-11)
    The purpose of this paper is to address the challenges and describe step-by-step solutions faced when developing an automatic speech recognition system in multilingual societies. We give a brief statistical analysis of the ...
  • Govender, Avashna; De Wet, Febe (IEEE, 2016-12)
    Building synthetic child voices is considered a difficult task due to the challenges associated with data collection. As a result, speaker adaptation in conjunction with Hidden Markov Model (HMM)-based synthesis has become ...
  • Davel, M; Barnard, E (PRASA, 2005-11)
    In this paper the authors describe a new approach to rewrite rule extraction and analysis, using Minimal Representation Graphs. This approach provides a mechanism for obtaining the smallest possible rule set – within a ...
  • Sahraeian, R; Van Compernolle, D; De Wet, Febe (SLTU 2014, 2014-05)
    This paper demonstrates the application of Intrinsic Spectral Analysis (ISA) for low-resource Automatic Speech Recognition (ASR). State-of-the-art speech recognition systems that require large amounts of task specific ...
  • Ndwe, J; Barnard, E; Dlodlo, M; Mashao, D; Kuun, C; Sharma, A (Springer, 2008-09)
    The OpenPhone project aims to design an Interactive Voice Response (IVR) health information system that enables people who are caregivers for HIV/AIDS infected children to access relevant information by using a telephone ...
  • Zulu, PN; Botha, G; Barnard, E (CSIR, 2007)
    Two methods for objectively measuring similarities and dissimilarities between the 11 official languages of South Africa are described. The first concerns the use of n-grams. The confusions between different languages in ...
  • Sharma Grover, A; Calteaux, K; Van Huyssteen, G; Pretorius, M (2010-10)
    South Africa is one of the few countries in the world that boasts a large number of official languages. Due to the efforts of the government and the local research and development (R&D) community all the official languages ...
  • Butgereit, L (African Science Communication Conference, 2006-12)
    Parent Run Science Clubs: A case study at Nooitgedacht 88 Primary School is a presentation case study presentation that will facilitate national, economic and social improvement through human capital development
  • Schlunz, Georg I; Barnard, E; Van Huyssteen, GB (PRASA 2010, 2010-11)
    One of the goals of text-to-speech (TTS) systems is to produce natural-sounding synthesised speech. Towards this end various natural language processing (NLP) tasks are performed to model the prosodic aspects of the TTS ...
  • Schlunz, Georg I; Dlamini, Nkosikhona; Kruger, Rynhardt P (Curran Associates, Inc, 2016-09)
    Text-to-speech synthesis can be an empowering communication tool in the hands of the print-disabled or augmentative and alternative communication user. In an effort to improve the naturalness of synthesised speech – and ...
  • Coetzee, L; Barnard, E (PRASA 2004, 2004-11)
    This paper analyses a number of disabilities, their assistive devices and the associated technologies in order to highlight the role pattern recognition plays in enabling accessibility and improving human computer interaction ...
  • Van Niekerk, DR; Barnard, E; Schlunz, Georg I (PRASA 2009, 2009-11)
    With the increasing prominence and maturity of corpus-based techniques for speech synthesis, the process of system development has in some ways been simplified considerably. However, the dependence on sufficient amounts ...
  • Van Niekerk, DR; Barnard, E (International Speech Communication Association (ISCA), 2009-09)
    The rapid development of concatenative speech synthesis systems in resource scarce languages requires an efficient and accurate solution with regard to automated phonetic alignment. However, in this context corpora are ...
  • Zerbian, S; Barnard, E (NISC, 2008)
    Much is already known about the prosodic systems of the indigenous South African languages from descriptions and analyses in the existing literature. All of the existing work has been carried out in the field of African ...

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