Automatic Partitioning of a Code-Switched Speech Corpus Using Mixed-Integer Programming. - Vüren, Joshua Miles Jansen van; Wet, Febe de; Niesler, Thomas (2024)

A Transformer-Based Voice Activity Detector. - Karan, Biswajit; Vüren, Joshua Jansen van; Wet, Febe de; Niesler, Thomas (2024)

Learning to rumble: Automated elephant call classification, detection and endpointing using deep architectures. - Geldenhuys, Christiaan M.; Niesler, Thomas R. (CoRR, 2024)

Accelerometer-Based Bed Occupancy Detection for Automatic, Non-Invasive Long-Term Cough Monitoring. - Pahar, Madhurananda; Miranda, Igor D. S.; Diacon, Andreas H.; Niesler, Thomas (IEEE Access, 2023)

Mathematical Content Browsing for Print-disabled Readers Based on Virtual-world Exploration and Audio-visual Sensory Substitution. - Kruger, Rynhardt; Wet, Febe de; Niesler, Thomas (ACM Trans. Access. Comput., 2023)

Bridging Healthcare Barriers with mHealth: A Systematic Review of Tuberculosis Applications and their Limitations. - Zajac, Kimsey; Aslan, Aycan; Greve, Maike; Kolbe, Lutz M.; Theron, Grant; Niesler, Thomas; Klopper, Marisa; Cobelens, Frank (2023)

Improving Under-Resourced Code-Switched Speech Recognition: Large Pre-trained Models or Architectural Interventions. - Vüren, Joshua Jansen van; Niesler, Thomas (2023)

Fine-Tuned Self-Supervised Speech Representations for Language Diarization in Multilingual Code-Switched Speech. - Frost, Geoffrey T.; Morris, Emily; Vüren, Joshua Jansen van; Niesler, Thomas (CoRR, 2023)

COVID-19 detection in cough, breath and speech using deep transfer learning and bottleneck features. - Pahar, Madhurananda; Klopper, Marisa; Warren, Robin; Niesler, Thomas (Comput. Biol. Medicine, 2022)

Code-switched automatic speech recognition in five South African languages. - Biswas, Astik; Yilmaz, Emre; Westhuizen, Ewald van der; Wet, Febe de; Niesler, Thomas (Comput. Speech Lang., 2022)

Feature learning for efficient ASR-free keyword spotting in low-resource languages. - Westhuizen, Ewald van der; Kamper, Herman; Menon, Raghav; Quinn, John A.; Niesler, Thomas (Comput. Speech Lang., 2022)

Automatic Non-Invasive Cough Detection based on Accelerometer and Audio Signals. - Pahar, Madhurananda; Miranda, Igor D. S.; Diacon, Andreas H.; Niesler, Thomas (J. Signal Process. Syst., 2022)

Wake-Cough: cough spotting and cougher identification for personalised long-term cough monitoring. - Pahar, Madhurananda; Klopper, Marisa; Reeve, Byron; Warren, Rob; Theron, Grant; Diacon, Andreas H.; Niesler, Thomas (2022)

TB or not TB? Acoustic cough analysis for tuberculosis classification. - Frost, Geoffrey T.; Theron, Grant; Niesler, Thomas (2022)

Fine-Tuned Self-supervised Speech Representations for Language Diarization in Multilingual Code-Switched Speech. - Frost, Geoffrey T.; Morris, Emily; Vüren, Joshua Jansen van; Niesler, Thomas (2022)

Code-Switched Language Modelling Using a Code Predictive Lstm in Under-Resourced South African Languages. - Vüren, Joshua Jansen van; Niesler, Thomas (2022)

Mathematical Content Browsing for Print-Disabled Readers Based on Virtual-World Exploration and Audio-Visual Sensory substitution. - Kruger, Rynhardt; Wet, Febe de; Niesler, Thomas (CoRR, 2022)

Accelerometer-based Bed Occupancy Detection for Automatic, Non-invasive Long-term Cough Monitoring. - Pahar, Madhurananda; Miranda, Igor D. S.; Diacon, Andreas H.; Niesler, Thomas (CoRR, 2022)

Automatic Tuberculosis and COVID-19 cough classification using deep learning. - Pahar, Madhurananda; Klopper, Marisa; Reeve, Byron; Warren, Rob; Theron, Grant; Diacon, Andreas H.; Niesler, Thomas (CoRR, 2022)

TB or not TB? Acoustic cough analysis for tuberculosis classification. - Frost, Geoffrey T.; Theron, Grant; Niesler, Thomas (CoRR, 2022)

COVID-19 cough classification using machine learning and global smartphone recordings. - Pahar, Madhurananda; Klopper, Marisa; Warren, Robin; Niesler, Thomas (Comput. Biol. Medicine, 2021)

Machine Learning Prediction of Hospitalization due to COVID-19 based on Self-Reported Symptoms: A Study for Brazil. - Miranda, Igor D. S.; Cardoso, Gildeberto; Pahar, Madhurananda; Oliveira, Gabriel; Niesler, Thomas (2021)

A Hybrid CNN-BiLSTM Voice Activity Detector. - Wilkinson, Nicholas; Niesler, Thomas (2021)

Deep Neural Network Based Cough Detection Using Bed-Mounted Accelerometer Measurements. - Pahar, Madhurananda; Miranda, Igor D. S.; Diacon, Andreas H.; Niesler, Thomas (2021)

Optimised Code-Switched Language Model Data Augmentation in Four Under-Resourced South African Languages. - Vueren, Joshua Jansen van; Niesler, Thomas (2021)

Multilingual Training Set Selection for ASR in Under-Resourced Malian Languages. - Westhuizen, Ewald van der; Padhi, Trideba; Niesler, Thomas (2021)

Deep Neural Network based Cough Detection using Bed-mounted Accelerometer Measurements. - Pahar, Madhurananda; Miranda, Igor D. S.; Diacon, Andreas H.; Niesler, Thomas (CoRR, 2021)

Automatic Cough Classification for Tuberculosis Screening in a Real-World Environment. - Pahar, Madhurananda; Klopper, Marisa; Reeve, Byron; Theron, Grant; Warren, Rob; Niesler, Thomas (CoRR, 2021)

Machine Learning based COVID-19 Detection from Smartphone Recordings: Cough, Breath and Speech. - Pahar, Madhurananda; Niesler, Thomas (CoRR, 2021)

Automatic non-invasive Cough Detection based on Accelerometer and Audio Signals. - Pahar, Madhurananda; Miranda, Igor D. S.; Diacon, Andreas H.; Niesler, Thomas (CoRR, 2021)

Wake-Cough: cough spotting and cougher identification for personalised long-term cough monitoring. - Pahar, Madhurananda; Klopper, Marisa; Reeve, Byron; Warren, Rob; Theron, Grant; Diacon, Andreas H.; Niesler, Thomas (CoRR, 2021)

Semi-supervised acoustic and language model training for English-isiZulu code-switched speech recognition. - Biswas, Astik; Wet, Febe de; Westhuizen, Ewald van der; Niesler, Thomas (2020)

Interactive Image Exploration for Visually Impaired Readers using Audio-augmented Touch Gestures. - Kruger, Rynhardt; Wet, Febe de; Niesler, Thomas (2020)

Semi-supervised Development of ASR Systems for Multilingual Code-switched Speech in Under-resourced Languages. - Biswas, Astik; Yilmaz, Emre; Wet, Febe de; Westhuizen, Ewald van der; Niesler, Thomas (2020)

Practical evaluation of carrier sensing for a LoRa wildlife monitoring network. - O'Kennedy, Morgan; Niesler, Thomas; Wolhuter, Riaan; Mitton, Nathalie (2020)

Semi-supervised Acoustic Modelling for Five-lingual Code-switched ASR using Automatically-segmented Soap Opera Speech. - Wilkinson, Nick; Biswas, Astik; Yilmaz, Emre; Wet, Febe de; Westhuizen, Ewald van der; Niesler, Thomas (2020)

Semi-supervised Development of ASR Systems for Multilingual Code-switched Speech in Under-resourced Languages. - Biswas, Astik; Yilmaz, Emre; Wet, Febe de; Westhuizen, Ewald van der; Niesler, Thomas (CoRR, 2020)

Semi-supervised acoustic and language model training for English-isiZulu code-switched speech recognition. - Biswas, Astik; Wet, Febe de; Westhuizen, Ewald van der; Niesler, Thomas R. (CoRR, 2020)

Semi-supervised acoustic modelling for five-lingual code-switched ASR using automatically-segmented soap opera speech. - Wilkinson, Nick; Biswas, Astik; Yilmaz, Emre; Wet, Febe de; Westhuizen, Ewald van der; Niesler, Thomas R. (CoRR, 2020)

Multilingual Bottleneck Features for Improving ASR Performance of Code-Switched Speech in Under-Resourced Languages. - Padhi, Trideba; Biswas, Astik; Wet, Febe de; Westhuizen, Ewald van der; Niesler, Thomas (CoRR, 2020)

COVID-19 Cough Classification using Machine Learning and Global Smartphone Recordings. - Pahar, Madhurananda; Klopper, Marisa; Warren, Robin; Niesler, Thomas (CoRR, 2020)

Synthesised bigrams using word embeddings for code-switched ASR of four South African language pairs. - Westhuizen, Ewald van der; Niesler, Thomas (Comput. Speech Lang., 2019)

Automatic sub-word unit discovery and pronunciation lexicon induction for ASR with application to under-resourced languages. - Agenbag, Wiehan; Niesler, Thomas (Comput. Speech Lang., 2019)

Feature trajectory dynamic time warping for clustering of speech segments. - Lerato, Lerato; Niesler, Thomas (EURASIP J. Audio Speech Music. Process., 2019)

A Comparative Study of Features for Acoustic Cough Detection Using Deep Architectures. - Miranda, Igor D. S.; Diacon, Andreas H.; Niesler, Thomas R. (2019)

Improved Low-Resource Somali Speech Recognition by Semi-Supervised Acoustic and Language Model Training. - Biswas, Astik; Menon, Raghav; Westhuizen, Ewald van der; Niesler, Thomas (2019)

Feature Exploration for Almost Zero-Resource ASR-Free Keyword Spotting Using a Multilingual Bottleneck Extractor and Correspondence Autoencoders. - Menon, Raghav; Kamper, Herman; Westhuizen, Ewald van der; Quinn, John A.; Niesler, Thomas (2019)

Improving Automatically Induced Lexicons for Highly Agglutinating Languages Using Data-Driven Morphological Segmentation. - Agenbag, Wiehan; Niesler, Thomas (2019)

Semi-Supervised Acoustic Model Training for Five-Lingual Code-Switched ASR. - Biswas, Astik; Yilmaz, Emre; Wet, Febe de; Westhuizen, Ewald van der; Niesler, Thomas (2019)

Semi-supervised acoustic model training for five-lingual code-switched ASR. - Biswas, Astik; Yilmaz, Emre; Wet, Febe de; Westhuizen, Ewald van der; Niesler, Thomas (CoRR, 2019)

Improved low-resource Somali speech recognition by semi-supervised acoustic and language model training. - Biswas, Astik; Menon, Raghav; Westhuizen, Ewald van der; Niesler, Thomas (CoRR, 2019)

Building a Unified Code-Switching ASR System for South African Languages. - Yilmaz, Emre; Biswas, Astik; Westhuizen, Ewald van der; Wet, Febe de; Niesler, Thomas (2018)

Multilingual Neural Network Acoustic Modelling for ASR of Under-Resourced English-isiZulu Code-Switched Speech. - Biswas, Astik; Wet, Febe de; Westhuizen, Ewald van der; Yilmaz, Emre; Niesler, Thomas (2018)

Fast ASR-free and Almost Zero-resource Keyword Spotting Using DTW and CNNs for Humanitarian Monitoring. - Menon, Raghav; Kamper, Herman; Quinn, John A.; Niesler, Thomas (2018)

A First South African Corpus of Multilingual Code-switched Soap Opera Speech. - Westhuizen, Ewald van der; Niesler, Thomas (2018)

Automatic Speech Recognition for Humanitarian Applications in Somali. - Menon, Raghav; Biswas, Astik; Saeb, Armin; Quinn, John A.; Niesler, Thomas (2018)

Improving ASR for Code-Switched Speech in Under-Resourced Languages Using Out-of-Domain Data. - Biswas, Astik; Westhuizen, Ewald van der; Niesler, Thomas; Wet, Febe de (2018)

ASR-Free CNN-DTW Keyword Spotting Using Multilingual Bottleneck Features for Almost Zero-Resource Languages. - Menon, Raghav; Kamper, Herman; Yilmaz, Emre; Quinn, John A.; Niesler, Thomas (2018)

Fast ASR-free and almost zero-resource keyword spotting using DTW and CNNs for humanitarian monitoring. - Menon, Raghav; Kamper, Herman; Quinn, John A.; Niesler, Thomas (CoRR, 2018)

ASR-free CNN-DTW keyword spotting using multilingual bottleneck features for almost zero-resource languages. - Menon, Raghav; Kamper, Herman; Yilmaz, Emre; Quinn, John A.; Niesler, Thomas (CoRR, 2018)

Automatic Speech Recognition for Humanitarian Applications in Somali. - Menon, Raghav; Biswas, Astik; Saeb, Armin; Quinn, John A.; Niesler, Thomas (CoRR, 2018)

Building a Unified Code-Switching ASR System for South African Languages. - Yilmaz, Emre; Biswas, Astik; Westhuizen, Ewald van der; Wet, Febe de; Niesler, Thomas (CoRR, 2018)

Feature Trajectory Dynamic Time Warping for Clustering of Speech Segments. - Lerato, Lerato; Niesler, Thomas (CoRR, 2018)

Cluster Size Management in Multi-Stage Agglomerative Hierarchical Clustering of Acoustic Speech Segments. - Lerato, Lerato; Niesler, Thomas (CoRR, 2018)

Direction of Arrival Estimation of Wide-band Signals with Planar Microphone Arrays. - Byker, Rudolf; Niesler, Thomas (CoRR, 2018)

Almost Zero-Resource ASR-free Keyword Spotting using Multilingual Bottleneck Features and Correspondence Autoencoders. - Menon, Raghav; Kamper, Herman; Quinn, John A.; Niesler, Thomas (CoRR, 2018)

Virtual reality assisted microscopy data visualization and colocalization analysis. - Theart, Rensu P.; Loos, Ben; Niesler, Thomas R. (BMC Bioinform., 2017)

Choosing an integrated radio-frequency module for a wildlife monitoring wireless sensor network. - Wotherspoon, Jonathan; Wolhuter, Riaan; Niesler, Thomas (2017)

Radio-browsing for developmental monitoring in Uganda. - Menon, Raghav; Saeb, Armin; Cameron, Hugh; Kibira, William; Quinn, John A.; Niesler, Thomas (2017)

Energy benefits of on-board behaviour classification for animal-borne sensor applications. - Roux, Solomon le; Wolhuter, Riaan; Niesler, Thomas; Stevens, Nobby (2017)

Synthesising isiZulu-English Code-Switch Bigrams Using Word Embeddings. - Westhuizen, Ewald van der; Niesler, Thomas (2017)

Very Low Resource Radio Browsing for Agile Developmental and Humanitarian Monitoring. - Saeb, Armin; Menon, Raghav; Cameron, Hugh; Kibira, William; Quinn, John A.; Niesler, Thomas (2017)

The Effect of Postlexical Deletion on Automatic Speech Recognition in Fast Spontaneously Spoken Zulu. - Westhuizen, Ewald van der; Niesler, Thomas (2016)

Refining Sparse Coding Sub-word Unit Inventories with Lattice-constrained Viterbi Training. - Agenbag, Wiehan; Niesler, Thomas (2016)

Automatic Speech Recognition of English-isiZulu Code-switched Speech from South African Soap Operas. - Westhuizen, Ewald van der; Niesler, Thomas (2016)

Improved visual speech synthesis using dynamic viseme k-means clustering and decision trees. - Rademan, Christiaan; Niesler, Thomas (2015)

Unconstrained Speech Segmentation using Deep Neural Networks. - Vuuren, Van Zyl van; Bosch, Louis ten; Niesler, Thomas (2015)

Automatic segmentation and clustering of speech using sparse coding and metaheuristic search. - Agenbag, Wiehan; Niesler, Thomas (2015)

Capitalising on North American speech resources for the development of a South African English large vocabulary speech recognition system. - Kamper, Herman; Wet, Febe de; Hain, Thomas; Niesler, Thomas (Comput. Speech Lang., 2014)

A Comparison of Two Prosody Modelling Approaches for Sesotho and Serbian. - Mohasi, Lehlohonolo; Secujski, Milan; Mak, Robert; Niesler, Thomas (2014)

A dynamic programming framework for neural network-based automatic speech segmentation. - Vuuren, Van Zyl van; Bosch, Louis ten; Niesler, Thomas (2013)

Multi-accent acoustic modelling of South African English. - Kamper, Herman; Mukanya, Félicien Jeje Muamba; Niesler, Thomas (Speech Commun., 2012)

Resource development and experiments in automatic south african broadcast news transcription. - Kamper, Herman; Wet, Febe de; Hain, Thomas; Niesler, Thomas (2012)

Automatic conversion between pronunciations of different English accents. - Loots, Linsen; Niesler, Thomas (Speech Commun., 2011)

An Acoustic Analysis of Tone in Sesotho. - Mohasi, Lehlohonolo; Mixdorff, Hansjörg; Niesler, Thomas (2011)

A Study on the Perception of Tone and Intonation in Sesotho. - Mixdorff, Hansjörg; Mohasi, Lehlohonolo; Machobane, Malillo; Niesler, Thomas (2011)

Multi-Accent Speech Recognition of Afrikaans, Black and White Varieties of South African English. - Kamper, Herman; Niesler, Thomas (2011)

Readability index as a design criterion for elicited imitation tasks in automatic oral proficiency assessment. - Wet, Febe de; Müller, Pieter; Walt, Christa van der; Niesler, Thomas (2011)

The effect of code-mixing on accent identification accuracy. - Niesler, Thomas; Wet, Febe de (Comput. Speech Lang., 2009)

Automatic assessment of oral language proficiency and listening comprehension. - Wet, Febe de; Walt, Christa van der; Niesler, Thomas (Speech Commun., 2009)

Data-driven phonetic comparison and conversion between south african, british and american English pronunciations. - Loots, Linsen; Niesler, Thomas (2009)

Automatically assessing the oral proficiency of proficient L2 speakers. - Müller, Pieter; Wet, Febe de; Walt, Christa van der; Niesler, Thomas (2009)

Accent identification in the presence of code-mixing. - Niesler, Thomas; Wet, Febe de (2008)

Language-dependent state clustering for multilingual acoustic modelling. - Niesler, Thomas (Speech Commun., 2007)

Automatic large-scale oral language proficiency assessment. - Wet, Febe de; Walt, Christa van der; Niesler, Thomas (2007)

Comparative phonetic analysis and phoneme recognition for Afrikaans, English and Xhosa using the African Speech Technology telephone speech databases. - Niesler, Thomas; Louw, Philippa H. (South Afr. Comput. J., 2004)

The African Speech Technology Project: An Assessment. - Roux, Justus C.; Louw, Philippa H.; Niesler, Thomas (2004)

Unsupervised adaptation of statistical language models for speech recognition. - Niesler, Thomas; Willett, Daniel (South Afr. Comput. J., 2003)

Pervasive unsupervised adaptation for lecture speech transcription. - Willett, Daniel; Niesler, Thomas; McDermott, Erik; Minami, Yasuhiro; Katagiri, Shigeru (2003)

Unsupervised language model adaptation for lecture speech transcription. - Niesler, Thomas; Willett, Daniel (2002)

Variable-length categoryn-gram language models. - Niesler, Thomas; Woodland, Philip C. (Comput. Speech Lang., 1999)

The 1998 HTK system for transcription of conversational telephone speech. - Hain, Thomas; Woodland, Philip C.; Niesler, Thomas; Whittaker, Edward W. D. (1999)

Improvements in accuracy and speed in the HTK broadcast news transcription system. - Woodland, Philip C.; Odell, J. J.; Hain, Thomas; Moore, Gareth L.; Niesler, Thomas; Tuerk, Andreas; Whittaker, Edward W. D. (1999)

Comparison of part-of-speech and automatically derived category-based language models for speech recognition. - Niesler, Thomas; Whittaker, Edward W. D.; Woodland, Philip C. (1998)

Experiments in broadcast news transcription. - Woodland, Philip C.; Hain, Thomas; Johnson, Sue E.; Niesler, Thomas; Tuerk, Andreas; Young, Steve J. (1998)

Modelling word-pair relations in a category-based language model. - Niesler, Thomas; Woodland, Philip C. (1997)

A variable-length category-based n-gram language model. - Niesler, Thomas; Woodland, Philip C. (1996)

Combination of word-based and category-based language models. - Niesler, Thomas; Woodland, Philip C. (1996)