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Browsing Human language technologies by Title

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  • Modipa, TI; Davel, MH; De Wet, Febe (PRASA 2013 Proceedings, 2013-12)
    Code switching (the process of switching from one language to another during a conversation) is a common phenomenon in multilingual environments. Where a minority and dominant language coincide, code switching from the ...
  • Van Niekerk, DR; Barnard, E (18th Annual Symposium of the Pattern Recognition Association of South Africa (PRASA), 2007-11)
    When doing research into or building systems involving spoken language, one invariably relies on relevantly annotated speech data for analysis and incorporation into such systems. The authors investigate methods and ...
  • Badenhorst, J; Davel, MH; Barnard, E (PRASA, 2012-11)
    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 ...
  • Marivate, V; Sefara, Tshephisho J (2020-08)
    We study the effect of different approaches to text augmentation. To do this we use three datasets that include social media and formal text in the form of news articles. Our goal is to provide insights for practitioners ...
  • De Waal, A; Barnard, E (PRASA 2010, 2010-11)
    Topic models explain a collection of documents with a small set of distributions over terms. These distributions over terms define the topics. Topic models ignore the structure of documents and use a bag-of-words approach ...
  • Zerbian, S; Barnard, E (Interspeech 2008, 2008-09)
    Tone in Bantu languages is rarely studied experimentally. This paper reports a production study which reveals the intricate interaction of tonal context and morphological structure in surface tone realization in Sepedi, a ...
  • Carroll, M; Van Der Merwe, A; Lubbe, S (2009)
    The increasing dependence upon Information systems has resulted in concerns regarding its auditing processes. IS auditing has changed from auditing “around the computer” to auditing through and with the computer. However, ...
  • Harmse, Henriette; Britz, Katarina; Gerber, Aurona J (IOS Press, 2018-09)
    The W3C standardized Semantic Web languages enable users to capture data without a schema in a manner which is intuitive to them. The challenge is that, for the data to be useful, it should be possible to query the data ...
  • Cloete, Jacob PL; Barnard, E; Patel, Hina M (2004-08)
    The authors report on research aimed at gaining an improved understanding of how issues such as language, literacy and previous exposure to technology affect citizens' ability to access government services of different ...
  • Gumede, T; Plauche, M (Association for Computational Linguistics, 2009-03)
    This paper describes sociological fieldwork conducted in the autumn of 2008 in eleven rural communities of South Africa. The goal of the fieldwork was to evaluate the potential role of automated telephony services in ...
  • Van Niekerk, DR; Barnard, E (INTERSPEECH 2010, 2010-09)
    The authors present an initial investigation into the acoustic realisation of tone in continuous utterances in Sepedi (a language in the Southern Bantu family). An analytic model for the generation of appropriate pitch ...
  • Marivate, Vukosi N; Sefara, Tshephisho J; Chabalala, V; Makhaya, K; Mokgonyane, T; Mokoena, R; Modupe, A (2020-05)
    The recent advances in Natural Language Processing have only been a boon for well represented languages, negating research in lesser known global languages. This is in part due to the availability of curated data and ...
  • Kleynhans, N (Pattern Recognition Association of South Africa, 2014-11)
    There are many services that generate or archive vast amounts of spoken audio data, on a daily basis. It is infeasible for humans to create annotations, by listening to all this data, so automatic methods are needed to ...
  • Butgereit, L; Botha, RA; Van den Heever, M (Northwest University in South Africa, 2012-07)
    Different human languages look different from other human languages. To use a term from the computer industry, each human language has its own “look and feel”. European English speakers can easily recognise a phrase such ...
  • Barnard, E; Cloete, L; Patel, Hina M (Springer, 2003)
    The paper presents research aimed at overcoming barriers to citizens’ ability to access electronic government services. Our concern is specifically ‘non-connectivity’ barriers to electronic service delivery including ...
  • 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, ...
  • Wilken, Ilana; Taljard, E; De Wet, Febe (National Inquiry Services Centre Pty Ltd, 2018-11)
    Being a multilingual country rich in culture and diversity, South Africa has residents who use a variety of the 11 official languages for daily communication. Multilingual communication occurs especially in hospitals and ...
  • Van Heerden, C; Schalkwyk, J; Strope, B (International Speech Communication Association, 2009-09)
    This paper describes the language modelling (LM) architectures and recognition experiments that enabled support of 'what-with-where' queries on GOOG-411. First the paper compares accuracy trade-offs between a single national ...
  • Van Huyssteen, GB; Davel, MH (Association for Computational Linguistics, 2010-06)
    In this research, the authors use machine learning techniques to provide solutions for descriptive linguists in the domain of language standardization. With regard to the personal name construction in Afrikaans, the authors ...
  • Badenhorst, Jacob AC; De Wet, Febe (IEEE, 2017-11)
    This paper reports on the recognition of second language (L2) isiXhosa speech produced by beginner level adult language learners. The speech samples were produced and recorded during the development of a Mobile Assisted ...

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