Thomas Niesler

104 papers A 20B 4C 1Misc 8Journal 43Unranked 28

Year	Rank	Type	Title / Venue / Authors
2026	J	`jnl`	Cough activity detection for automatic tuberculosis screening. CoRR Joshua Jansen van Vüren, Devendra Singh Parihar, Daphne Naidoo, Kimsey Zajac, Willy Ssengooba, Grant Theron, Thomas Niesler
2024	A	`conf`	A Transformer-Based Voice Activity Detector. INTERSPEECH Biswajit Karan, Joshua Jansen van Vüren, Febe de Wet, Thomas Niesler
2024	—	`conf`	Automatic Partitioning of a Code-Switched Speech Corpus Using Mixed-Integer Programming. LREC/COLING Joshua Miles Jansen van Vüren, Febe de Wet, Thomas Niesler
2023	J	`jnl`	Accelerometer-Based Bed Occupancy Detection for Automatic, Non-Invasive Long-Term Cough Monitoring. IEEE Access Madhurananda Pahar, Igor D. S. Miranda, Andreas H. Diacon, Thomas Niesler
2023	—	`conf`	Bridging Healthcare Barriers with mHealth: A Systematic Review of Tuberculosis Applications and their Limitations. AMCIS Kimsey Zajac, Aycan Aslan, Maike Greve, Lutz M. Kolbe, Grant Theron, Thomas Niesler, Marisa Klopper, Frank Cobelens
2023	J	`jnl`	Fine-Tuned Self-Supervised Speech Representations for Language Diarization in Multilingual Code-Switched Speech. CoRR Geoffrey T. Frost, Emily Morris, Joshua Jansen van Vüren, Thomas Niesler
2023	A	`conf`	Improving Under-Resourced Code-Switched Speech Recognition: Large Pre-trained Models or Architectural Interventions. INTERSPEECH Joshua Jansen van Vüren, Thomas Niesler
2023	J	`jnl`	Mathematical Content Browsing for Print-disabled Readers Based on Virtual-world Exploration and Audio-visual Sensory Substitution. ACM Trans. Access. Comput. Rynhardt Kruger, Febe de Wet, Thomas Niesler
2022	J	`jnl`	Accelerometer-based Bed Occupancy Detection for Automatic, Non-invasive Long-term Cough Monitoring. CoRR Madhurananda Pahar, Igor D. S. Miranda, Andreas H. Diacon, Thomas Niesler
2022	J	`jnl`	Automatic Non-Invasive Cough Detection based on Accelerometer and Audio Signals. J. Signal Process. Syst. Madhurananda Pahar, Igor D. S. Miranda, Andreas H. Diacon, Thomas Niesler
2022	J	`jnl`	Automatic Tuberculosis and COVID-19 cough classification using deep learning. CoRR Madhurananda Pahar, Marisa Klopper, Byron Reeve, Rob Warren, Grant Theron, Andreas H. Diacon, Thomas Niesler
2022	J	`jnl`	COVID-19 detection in cough, breath and speech using deep transfer learning and bottleneck features. Comput. Biol. Medicine Madhurananda Pahar, Marisa Klopper, Robin Warren, Thomas Niesler
2022	—	`conf`	Code-Switched Language Modelling Using a Code Predictive Lstm in Under-Resourced South African Languages. SLT Joshua Jansen van Vüren, Thomas Niesler
2022	J	`jnl`	Code-switched automatic speech recognition in five South African languages. Comput. Speech Lang. Astik Biswas, Emre Yilmaz, Ewald van der Westhuizen, Febe de Wet, Thomas Niesler
2022	J	`jnl`	Feature learning for efficient ASR-free keyword spotting in low-resource languages. Comput. Speech Lang. Ewald van der Westhuizen, Herman Kamper, Raghav Menon, John A. Quinn, Thomas Niesler
2022	—	`conf`	Fine-Tuned Self-supervised Speech Representations for Language Diarization in Multilingual Code-Switched Speech. SACAIR Geoffrey T. Frost, Emily Morris, Joshua Jansen van Vüren, Thomas Niesler
2022	J	`jnl`	Mathematical Content Browsing for Print-Disabled Readers Based on Virtual-World Exploration and Audio-Visual Sensory substitution. CoRR Rynhardt Kruger, Febe de Wet, Thomas Niesler
2022	A	`conf`	TB or not TB? Acoustic cough analysis for tuberculosis classification. INTERSPEECH Geoffrey T. Frost, Grant Theron, Thomas Niesler
2022	J	`jnl`	TB or not TB? Acoustic cough analysis for tuberculosis classification. CoRR Geoffrey T. Frost, Grant Theron, Thomas Niesler
2022	—	`conf`	Wake-Cough: cough spotting and cougher identification for personalised long-term cough monitoring. EUSIPCO Madhurananda Pahar, Marisa Klopper, Byron Reeve, Rob Warren, Grant Theron, Andreas H. Diacon, Thomas Niesler
2021	Misc	`conf`	A Hybrid CNN-BiLSTM Voice Activity Detector. ICASSP Nicholas Wilkinson, Thomas Niesler
2021	J	`jnl`	Automatic Cough Classification for Tuberculosis Screening in a Real-World Environment. CoRR Madhurananda Pahar, Marisa Klopper, Byron Reeve, Grant Theron, Rob Warren, Thomas Niesler
2021	J	`jnl`	Automatic non-invasive Cough Detection based on Accelerometer and Audio Signals. CoRR Madhurananda Pahar, Igor D. S. Miranda, Andreas H. Diacon, Thomas Niesler
2021	J	`jnl`	COVID-19 cough classification using machine learning and global smartphone recordings. Comput. Biol. Medicine Madhurananda Pahar, Marisa Klopper, Robin Warren, Thomas Niesler
2021	Misc	`conf`	Deep Neural Network Based Cough Detection Using Bed-Mounted Accelerometer Measurements. ICASSP Madhurananda Pahar, Igor D. S. Miranda, Andreas H. Diacon, Thomas Niesler
2021	J	`jnl`	Deep Neural Network based Cough Detection using Bed-mounted Accelerometer Measurements. CoRR Madhurananda Pahar, Igor D. S. Miranda, Andreas H. Diacon, Thomas Niesler
2021	—	`conf`	Machine Learning Prediction of Hospitalization due to COVID-19 based on Self-Reported Symptoms: A Study for Brazil. BHI Igor D. S. Miranda, Gildeberto Cardoso, Madhurananda Pahar, Gabriel Oliveira, Thomas Niesler
2021	J	`jnl`	Machine Learning based COVID-19 Detection from Smartphone Recordings: Cough, Breath and Speech. CoRR Madhurananda Pahar, Thomas Niesler
2021	—	`conf`	Multilingual Training Set Selection for ASR in Under-Resourced Malian Languages. SPECOM Ewald van der Westhuizen, Trideba Padhi, Thomas Niesler
2021	—	`conf`	Optimised Code-Switched Language Model Data Augmentation in Four Under-Resourced South African Languages. SPECOM Joshua Jansen van Vueren, Thomas Niesler
2021	J	`jnl`	Wake-Cough: cough spotting and cougher identification for personalised long-term cough monitoring. CoRR Madhurananda Pahar, Marisa Klopper, Byron Reeve, Rob Warren, Grant Theron, Andreas H. Diacon, Thomas Niesler
2020	J	`jnl`	COVID-19 Cough Classification using Machine Learning and Global Smartphone Recordings. CoRR Madhurananda Pahar, Marisa Klopper, Robin Warren, Thomas Niesler
2020	C	`conf`	Interactive Image Exploration for Visually Impaired Readers using Audio-augmented Touch Gestures. IV Rynhardt Kruger, Febe de Wet, Thomas Niesler
2020	J	`jnl`	Multilingual Bottleneck Features for Improving ASR Performance of Code-Switched Speech in Under-Resourced Languages. CoRR Trideba Padhi, Astik Biswas, Febe de Wet, Ewald van der Westhuizen, Thomas Niesler
2020	B	`conf`	Practical evaluation of carrier sensing for a LoRa wildlife monitoring network. Networking Morgan O'Kennedy, Thomas Niesler, Riaan Wolhuter, Nathalie Mitton
2020	—	`conf`	Semi-supervised Acoustic Modelling for Five-lingual Code-switched ASR using Automatically-segmented Soap Opera Speech. SLTU-CCURL@LREC Nick Wilkinson, Astik Biswas, Emre Yilmaz, Febe de Wet, Ewald van der Westhuizen, Thomas Niesler
2020	B	`conf`	Semi-supervised Development of ASR Systems for Multilingual Code-switched Speech in Under-resourced Languages. LREC Astik Biswas, Emre Yilmaz, Febe de Wet, Ewald van der Westhuizen, Thomas Niesler
2020	J	`jnl`	Semi-supervised Development of ASR Systems for Multilingual Code-switched Speech in Under-resourced Languages. CoRR Astik Biswas, Emre Yilmaz, Febe de Wet, Ewald van der Westhuizen, Thomas Niesler
2020	—	`conf`	Semi-supervised acoustic and language model training for English-isiZulu code-switched speech recognition. CodeSwitch@LREC Astik Biswas, Febe de Wet, Ewald van der Westhuizen, Thomas Niesler
2019	J	`jnl`	Automatic sub-word unit discovery and pronunciation lexicon induction for ASR with application to under-resourced languages. Comput. Speech Lang. Wiehan Agenbag, Thomas Niesler
2019	A	`conf`	Feature Exploration for Almost Zero-Resource ASR-Free Keyword Spotting Using a Multilingual Bottleneck Extractor and Correspondence Autoencoders. INTERSPEECH Raghav Menon, Herman Kamper, Ewald van der Westhuizen, John A. Quinn, Thomas Niesler
2019	J	`jnl`	Feature trajectory dynamic time warping for clustering of speech segments. EURASIP J. Audio Speech Music. Process. Lerato Lerato, Thomas Niesler
2019	A	`conf`	Improved Low-Resource Somali Speech Recognition by Semi-Supervised Acoustic and Language Model Training. INTERSPEECH Astik Biswas, Raghav Menon, Ewald van der Westhuizen, Thomas Niesler
2019	J	`jnl`	Improved low-resource Somali speech recognition by semi-supervised acoustic and language model training. CoRR Astik Biswas, Raghav Menon, Ewald van der Westhuizen, Thomas Niesler
2019	A	`conf`	Improving Automatically Induced Lexicons for Highly Agglutinating Languages Using Data-Driven Morphological Segmentation. INTERSPEECH Wiehan Agenbag, Thomas Niesler
2019	A	`conf`	Semi-Supervised Acoustic Model Training for Five-Lingual Code-Switched ASR. INTERSPEECH Astik Biswas, Emre Yilmaz, Febe de Wet, Ewald van der Westhuizen, Thomas Niesler
2019	J	`jnl`	Semi-supervised acoustic model training for five-lingual code-switched ASR. CoRR Astik Biswas, Emre Yilmaz, Febe de Wet, Ewald van der Westhuizen, Thomas Niesler
2019	J	`jnl`	Synthesised bigrams using word embeddings for code-switched ASR of four South African language pairs. Comput. Speech Lang. Ewald van der Westhuizen, Thomas Niesler
2018	B	`conf`	A First South African Corpus of Multilingual Code-switched Soap Opera Speech. LREC Ewald van der Westhuizen, Thomas Niesler
2018	—	`conf`	ASR-Free CNN-DTW Keyword Spotting Using Multilingual Bottleneck Features for Almost Zero-Resource Languages. SLTU Raghav Menon, Herman Kamper, Emre Yilmaz, John A. Quinn, Thomas Niesler
2018	J	`jnl`	ASR-free CNN-DTW keyword spotting using multilingual bottleneck features for almost zero-resource languages. CoRR Raghav Menon, Herman Kamper, Emre Yilmaz, John A. Quinn, Thomas Niesler
2018	J	`jnl`	Almost Zero-Resource ASR-free Keyword Spotting using Multilingual Bottleneck Features and Correspondence Autoencoders. CoRR Raghav Menon, Herman Kamper, John A. Quinn, Thomas Niesler
2018	—	`conf`	Automatic Speech Recognition for Humanitarian Applications in Somali. SLTU Raghav Menon, Astik Biswas, Armin Saeb, John A. Quinn, Thomas Niesler
2018	J	`jnl`	Automatic Speech Recognition for Humanitarian Applications in Somali. CoRR Raghav Menon, Astik Biswas, Armin Saeb, John A. Quinn, Thomas Niesler
2018	A	`conf`	Building a Unified Code-Switching ASR System for South African Languages. INTERSPEECH Emre Yilmaz, Astik Biswas, Ewald van der Westhuizen, Febe de Wet, Thomas Niesler
2018	J	`jnl`	Building a Unified Code-Switching ASR System for South African Languages. CoRR Emre Yilmaz, Astik Biswas, Ewald van der Westhuizen, Febe de Wet, Thomas Niesler
2018	J	`jnl`	Cluster Size Management in Multi-Stage Agglomerative Hierarchical Clustering of Acoustic Speech Segments. CoRR Lerato Lerato, Thomas Niesler
2018	J	`jnl`	Direction of Arrival Estimation of Wide-band Signals with Planar Microphone Arrays. CoRR Rudolf Byker, Thomas Niesler
2018	A	`conf`	Fast ASR-free and Almost Zero-resource Keyword Spotting Using DTW and CNNs for Humanitarian Monitoring. INTERSPEECH Raghav Menon, Herman Kamper, John A. Quinn, Thomas Niesler
2018	J	`jnl`	Fast ASR-free and almost zero-resource keyword spotting using DTW and CNNs for humanitarian monitoring. CoRR Raghav Menon, Herman Kamper, John A. Quinn, Thomas Niesler
2018	J	`jnl`	Feature Trajectory Dynamic Time Warping for Clustering of Speech Segments. CoRR Lerato Lerato, Thomas Niesler
2018	—	`conf`	Improving ASR for Code-Switched Speech in Under-Resourced Languages Using Out-of-Domain Data. SLTU Astik Biswas, Ewald van der Westhuizen, Thomas Niesler, Febe de Wet
2018	A	`conf`	Multilingual Neural Network Acoustic Modelling for ASR of Under-Resourced English-isiZulu Code-Switched Speech. INTERSPEECH Astik Biswas, Febe de Wet, Ewald van der Westhuizen, Emre Yilmaz, Thomas Niesler
2017	—	`conf`	Choosing an integrated radio-frequency module for a wildlife monitoring wireless sensor network. AFRICON Jonathan Wotherspoon, Riaan Wolhuter, Thomas Niesler
2017	—	`conf`	Energy benefits of on-board behaviour classification for animal-borne sensor applications. IEEE SENSORS Solomon le Roux, Riaan Wolhuter, Thomas Niesler, Nobby Stevens
2017	Misc	`conf`	Radio-browsing for developmental monitoring in Uganda. ICASSP Raghav Menon, Armin Saeb, Hugh Cameron, William Kibira, John A. Quinn, Thomas Niesler
2017	A	`conf`	Synthesising isiZulu-English Code-Switch Bigrams Using Word Embeddings. INTERSPEECH Ewald van der Westhuizen, Thomas Niesler
2017	A	`conf`	Very Low Resource Radio Browsing for Agile Developmental and Humanitarian Monitoring. INTERSPEECH Armin Saeb, Raghav Menon, Hugh Cameron, William Kibira, John A. Quinn, Thomas Niesler
2016	—	`conf`	Automatic Speech Recognition of English-isiZulu Code-switched Speech from South African Soap Operas. SLTU Ewald van der Westhuizen, Thomas Niesler
2016	—	`conf`	Refining Sparse Coding Sub-word Unit Inventories with Lattice-constrained Viterbi Training. SLTU Wiehan Agenbag, Thomas Niesler
2016	A	`conf`	The Effect of Postlexical Deletion on Automatic Speech Recognition in Fast Spontaneously Spoken Zulu. INTERSPEECH Ewald van der Westhuizen, Thomas Niesler
2015	A	`conf`	Automatic segmentation and clustering of speech using sparse coding and metaheuristic search. INTERSPEECH Wiehan Agenbag, Thomas Niesler
2015	—	`conf`	Improved visual speech synthesis using dynamic viseme k-means clustering and decision trees. AVSP Christiaan Rademan, Thomas Niesler
2015	—	`conf`	Unconstrained Speech Segmentation using Deep Neural Networks. ICPRAM (1) Van Zyl Van Vuuren, Louis ten Bosch, Thomas Niesler
2014	—	`conf`	A Comparison of Two Prosody Modelling Approaches for Sesotho and Serbian. SPECOM Lehlohonolo Mohasi, Milan Secujski, Robert Mak, Thomas Niesler
2014	J	`jnl`	Capitalising on North American speech resources for the development of a South African English large vocabulary speech recognition system. Comput. Speech Lang. Herman Kamper, Febe de Wet, Thomas Hain, Thomas Niesler
2013	A	`conf`	A dynamic programming framework for neural network-based automatic speech segmentation. INTERSPEECH Van Zyl Van Vuuren, Louis ten Bosch, Thomas Niesler
2012	J	`jnl`	Multi-accent acoustic modelling of South African English. Speech Commun. Herman Kamper, Félicien Jeje Muamba Mukanya, Thomas Niesler
2012	—	`conf`	Resource development and experiments in automatic south african broadcast news transcription. SLTU Herman Kamper, Febe de Wet, Thomas Hain, Thomas Niesler
2011	A	`conf`	A Study on the Perception of Tone and Intonation in Sesotho. INTERSPEECH Hansjörg Mixdorff, Lehlohonolo Mohasi, Malillo Machobane, Thomas Niesler
2011	—	`conf`	An Acoustic Analysis of Tone in Sesotho. ICPhS Lehlohonolo Mohasi, Hansjörg Mixdorff, Thomas Niesler
2011	J	`jnl`	Automatic conversion between pronunciations of different English accents. Speech Commun. Linsen Loots, Thomas Niesler
2011	A	`conf`	Multi-Accent Speech Recognition of Afrikaans, Black and White Varieties of South African English. INTERSPEECH Herman Kamper, Thomas Niesler
2011	—	`conf`	Readability index as a design criterion for elicited imitation tasks in automatic oral proficiency assessment. SLaTE Febe de Wet, Pieter Müller, Christa van der Walt, Thomas Niesler
2009	J	`jnl`	Automatic assessment of oral language proficiency and listening comprehension. Speech Commun. Febe de Wet, Christa van der Walt, Thomas Niesler
2009	—	`conf`	Automatically assessing the oral proficiency of proficient L2 speakers. SLaTE Pieter Müller, Febe de Wet, Christa van der Walt, Thomas Niesler
2009	A	`conf`	Data-driven phonetic comparison and conversion between south african, british and american English pronunciations. INTERSPEECH Linsen Loots, Thomas Niesler
2009	J	`jnl`	The effect of code-mixing on accent identification accuracy. Comput. Speech Lang. Thomas Niesler, Febe de Wet
2008	—	`conf`	Accent identification in the presence of code-mixing. Odyssey Thomas Niesler, Febe de Wet
2007	A	`conf`	Automatic large-scale oral language proficiency assessment. INTERSPEECH Febe de Wet, Christa van der Walt, Thomas Niesler
2007	J	`jnl`	Language-dependent state clustering for multilingual acoustic modelling. Speech Commun. Thomas Niesler
2004	J	`jnl`	Comparative phonetic analysis and phoneme recognition for Afrikaans, English and Xhosa using the African Speech Technology telephone speech databases. South Afr. Comput. J. Thomas Niesler, Philippa H. Louw
2004	B	`conf`	The African Speech Technology Project: An Assessment. LREC Justus C. Roux, Philippa H. Louw, Thomas Niesler
2003	—	`conf`	Pervasive unsupervised adaptation for lecture speech transcription. ICASSP (1) Daniel Willett, Thomas Niesler, Erik McDermott, Yasuhiro Minami, Shigeru Katagiri
2003	J	`jnl`	Unsupervised adaptation of statistical language models for speech recognition. South Afr. Comput. J. Thomas Niesler, Daniel Willett
2002	A	`conf`	Unsupervised language model adaptation for lecture speech transcription. INTERSPEECH Thomas Niesler, Daniel Willett
1999	—	`conf`	Improvements in accuracy and speed in the HTK broadcast news transcription system. EUROSPEECH Philip C. Woodland, J. J. Odell, Thomas Hain, Gareth L. Moore, Thomas Niesler, Andreas Tuerk, Edward W. D. Whittaker
1999	Misc	`conf`	The 1998 HTK system for transcription of conversational telephone speech. ICASSP Thomas Hain, Philip C. Woodland, Thomas Niesler, Edward W. D. Whittaker
1999	J	`jnl`	Variable-length categoryn-gram language models. Comput. Speech Lang. Thomas Niesler, Philip C. Woodland
1998	Misc	`conf`	Comparison of part-of-speech and automatically derived category-based language models for speech recognition. ICASSP Thomas Niesler, Edward W. D. Whittaker, Philip C. Woodland
1998	Misc	`conf`	Experiments in broadcast news transcription. ICASSP Philip C. Woodland, Thomas Hain, Sue E. Johnson, Thomas Niesler, Andreas Tuerk, Steve J. Young
1997	Misc	`conf`	Modelling word-pair relations in a category-based language model. ICASSP Thomas Niesler, Philip C. Woodland
1996	Misc	`conf`	A variable-length category-based n-gram language model. ICASSP Thomas Niesler, Philip C. Woodland
1996	—	`conf`	Combination of word-based and category-based language models. ICSLP Thomas Niesler, Philip C. Woodland