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Browsing by Subject "Natural language processing"

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Acoustic modelling of Sepedi affricates for ASR

Author: Modipa, T ; Davel, M ; De Wet, Febe Date: Oct 2010 Automatic speech recognition (ASR) systems are increasingly being developed for under-resourced languages, especially for use in multilingual spoken dialogue systems. We investigate different approaches to the acoustic modelling of Sepedi ... Read more
A GF miniature resource grammar for Tswana: modelling the proper verb

Author: Pretorius, L ; Marais, Laurette ; Berg, A Date: Mar 2017 The Grammatical Framework (GF) not only offers state of the art grammar-based machine translation support between an increasing number of languages through its so-called Resource Grammar Library, but is also fast becoming a de facto framework ... Read more
HMM-based speech synthesis system incorporated with language identification for low-resourced languages

Author: Sefara, Tshephisho J ; Mokgonyane, TB ; Manamela, MJ ; Modipa, TI Date: Aug 2019 Text-to-speech (TTS) synthesis systems are of benefit towards learning new or foreign languages. These systems are currently available for various major languages but not available for low-resourced languages. Scarcity of these systems may ... Read more
Influence of input matrix representation on topic modelling performance

Author: De Waal, A ; Barnard, E Date: Nov 2010 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 which relies solely ... Read more
Part-of-speech effects on text-to-speech synthesis

Author: Schlunz, Georg I ; Barnard, E ; Van Huyssteen, GB Date: Nov 2010 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 voice. One of the ... Read more
Part-of-speech tagging and chunking in text-to-speech synthesis for South African languages

Author: Schlunz, Georg I ; Dlamini, Nkosikhona ; Kruger, Rynhardt P Date: Sep 2016 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 thus enhance the ... Read more
Prototype-based active learning for lemmatization

Author: Daelemans, W ; Groenewald, HJ ; Van Huyssteen, GB Date: Sep 2009 Annotation of training data for machine learning is often a laborious and costly process. In Active Learning (AL), criteria are investigated that allow ordering the unannotated data in such a way that those instances potentially contributing ... Read more
Topic modelling of news articles for two consecutive elections in South Africa

Author: Moodley, Avashlin ; Marivate, Vukosi N Date: Nov 2019 In election cycles, the political-themed articles published by news providers present a rich source of information about election discourse. Extracting useful themes from a large article corpus manually is infeasible, text mining techniques ... Read more

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Browsing by Subject "Natural language processing"

Browsing by Subject "Natural language processing"

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