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  • 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 ...
  • Davel, MH; Barnard, E (PRASA 2004, 2004-11)
    The authors define a novel g-to-p prediction algorithm that utilises the concept of a 'default phoneme': a grapheme which is realised as a specific phoneme significantly more often than as any other phoneme. They found ...
  • Louw, A; Davel, M; Barnard, E (4th International Conference of the African Language Association of Southern Africa (ALASA), 2005-07)
    A general-purpose isiZulu text-to-speech (TTS) system was developed, based on the “Multisyn” unit-selection approach supported by the Festival TTS toolkit. The development involved a number of challenges related to the ...
  • Naidoo, Soogandhree; Barnard, E (ALASA 2005, 2005-07)
    Telephone-based information services hold tremendous potential as a means of information access in the developing world. However,surprisingly little research has been done on the design of such systems - whether basic ...
  • Davel, MH (2005-08)
    Bootstrapping techniques have the potential to accelerate the development of language technology resources. This is of specific importance in the developing world where language technology resources are scarce and linguistic ...
  • Govender, Nicolin; Barnard, E; Davel, MH (Interspeech 2005, 2005-09)
    Much theoretical work has been done on the tonal structure of languages in the Bantu family. However, most of these studies are not supported by physical measurements, or even a consistent model for mapping from linguistic ...
  • Davel, MH; Barnard, E (Interspecch 2005, 2005-09)
    Bootstrapping techniques are an efficient way to develop electronic pronunciation dictionaries, but require fast system response to be practical for medium-to-large lexicons. In addition, user errors are inevitable during ...
  • Roy, DP; Frost, PGH; Justice, CO; Landmann, T; Le Roux, JL; Gumbo, K; Makungwa, S; Dunham, K; Du Toit, R; Mhwandagara, K; Zacarias, A; Tacheba, B; Dube, OP; Pereira, JMC; Mushove, P; Morisette, JT; Vannan, SKS; Davies, D (Taylor & Francis Ltd, 2005-10-10)
    The development of appropriate validation techniques is critical to assess uncertainties associated with satellite-data-based products, to identify needed product improvements and to allow products to be used appropriately. ...
  • Botha, G; Barnard, E (PRASA, 2005-11)
    Many applications of pattern recognition to natural language processing require large text corpora in a specified language. For many of the languages of the world, such corpora are not readily available, but significant ...
  • Govender, Natasha; Barnard, E; Davel, M (PRASA, 2005-11)
    In order to bring the tools of statistical pattern recognition to bear on intonation modelling, we need tailor-made corpora in the languages of interest. We describe how two such corpora were developed (for isiZulu and ...
  • Van Heerden, CJ; Barnard, E (PRASA, 2005-11)
    This paper presents an analysis of temporal information as a feature for use in speaker verification systems. The relevance of temporal information in a speaker’s utterances is investigated, both with regard to improving ...
  • 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 ...
  • Kuun, C; Zimu, V; Barnard, E; Davel, M (PRASA, 2005-11)
    We study the relationship between lexical tone and measured values of fundamental frequency for several word classes in isiZulu, based on objective measurements from recordings of three speakers. For nouns and adjectives, ...
  • Kleynhans, NT; Barnard, E (PRASA, 2005-11)
    An investigation into the performance of current speaker verification technology within a multilingual context is presented. Using the Oregon Graduate Institute (OGI) Multi-Language Telephone Speech Corpus (MLTS) database, ...
  • Joubert, G; Barnard, E (PRASA, 2005-11)
    The authors describe a system, based on open-source tools, that was developed in order to study the effect of network degenerations in Voice-over-Internet-Protocol applications on speech-recognition accuracy. Sophisticated ...
  • Van den Bergh, F; Van Wyk, MA; Van Wyk, BJ (2006)
    This paper presents two new schemes for interpolating missing samples in satellite diurnal temperature cycles (DTCs). The first scheme, referred to here as the cosine model, is an improvement of the model proposed in [2] ...
  • Mcferren, GA; Roos, S; Terhorst, AL (2006)
    AFIS (Advanced Fire Information System) is a joint initiative between CSIR and Eskom, the South African electricity utility. AFIS infers fire occurrences from processed remotely sensed data and triggers alarms to Eskom ...
  • Shatalov, M; Fedotov, I; Joubert, S (2006)
    It was shown in 1985 by Acad. V. Zhuravlev that the angular rate of a pure vibrating mode excited in a vibratory gyroscope with spherical symmetry is proportional to an inertial angular rate of the gyroscope. The effect ...
  • Bateman, P; Tucker, KC (2006)
    The community’s “strength in diversity” was evident throughout the discussion diversity in terms of the members, their perspectives, interests, activities, offerings and contributions. The dynamic list of questions is a ...
  • Van den Bergh, F; Engelbrecht, AP (Elsevier Science B.V, 2006)
    Particle swarm optimization (PSO) has shown to be an efficient, robust and simple optimization algorithm. Most of the PSO studies are empirical, with only a few theoretical analyses that concentrate on understanding particle ...

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