Thomas Niesler

ORCID

Publication Activity (10 Years)

Years Active: 1996-2024
Publications (10 Years): 72

Top Venues

Publications

Joshua Miles Jansen van Vüren, Febe de Wet, Thomas Niesler
Automatic Partitioning of a Code-Switched Speech Corpus Using Mixed-Integer Programming. LREC/COLING (2024)
Madhurananda Pahar, Igor D. S. Miranda, Andreas H. Diacon, Thomas Niesler
Accelerometer-Based Bed Occupancy Detection for Automatic, Non-Invasive Long-Term Cough Monitoring. IEEE Access 11 (2023)
Kimsey Zajac, Aycan Aslan, Maike Greve, Lutz M. Kolbe, Grant Theron, Thomas Niesler, Marisa Klopper, Frank Cobelens
Bridging Healthcare Barriers with mHealth: A Systematic Review of Tuberculosis Applications and their Limitations. AMCIS (2023)
Joshua Jansen van Vüren, Thomas Niesler
Improving Under-Resourced Code-Switched Speech Recognition: Large Pre-trained Models or Architectural Interventions. INTERSPEECH (2023)
Rynhardt Kruger, Febe de Wet, Thomas Niesler
Mathematical Content Browsing for Print-disabled Readers Based on Virtual-world Exploration and Audio-visual Sensory Substitution. ACM Trans. Access. Comput. 16 (2) (2023)
Geoffrey T. Frost, Emily Morris, Joshua Jansen van Vüren, Thomas Niesler
Fine-Tuned Self-Supervised Speech Representations for Language Diarization in Multilingual Code-Switched Speech. CoRR (2023)
Madhurananda Pahar, Marisa Klopper, Byron Reeve, Rob Warren, Grant Theron, Andreas H. Diacon, Thomas Niesler
Wake-Cough: cough spotting and cougher identification for personalised long-term cough monitoring. EUSIPCO (2022)
Madhurananda Pahar, Marisa Klopper, Byron Reeve, Rob Warren, Grant Theron, Andreas H. Diacon, Thomas Niesler
Automatic Tuberculosis and COVID-19 cough classification using deep learning. CoRR (2022)
Madhurananda Pahar, Igor D. S. Miranda, Andreas H. Diacon, Thomas Niesler
Accelerometer-based Bed Occupancy Detection for Automatic, Non-invasive Long-term Cough Monitoring. CoRR (2022)
Astik Biswas, Emre Yilmaz, Ewald van der Westhuizen, Febe de Wet, Thomas Niesler
Code-switched automatic speech recognition in five South African languages. Comput. Speech Lang. 71 (2022)
Joshua Jansen van Vüren, Thomas Niesler
Code-Switched Language Modelling Using a Code Predictive Lstm in Under-Resourced South African Languages. SLT (2022)
Ewald van der Westhuizen, Herman Kamper, Raghav Menon, John A. Quinn, Thomas Niesler
Feature learning for efficient ASR-free keyword spotting in low-resource languages. Comput. Speech Lang. 71 (2022)
Geoffrey T. Frost, Grant Theron, Thomas Niesler
TB or not TB? Acoustic cough analysis for tuberculosis classification. INTERSPEECH (2022)
Madhurananda Pahar, Marisa Klopper, Robin Warren, Thomas Niesler
COVID-19 detection in cough, breath and speech using deep transfer learning and bottleneck features. Comput. Biol. Medicine 141 (2022)
Geoffrey T. Frost, Grant Theron, Thomas Niesler
TB or not TB? Acoustic cough analysis for tuberculosis classification. CoRR (2022)
Madhurananda Pahar, Igor D. S. Miranda, Andreas H. Diacon, Thomas Niesler
Automatic Non-Invasive Cough Detection based on Accelerometer and Audio Signals. J. Signal Process. Syst. 94 (8) (2022)
Rynhardt Kruger, Febe de Wet, Thomas Niesler
Mathematical Content Browsing for Print-Disabled Readers Based on Virtual-World Exploration and Audio-Visual Sensory substitution. CoRR (2022)
Geoffrey T. Frost, Emily Morris, Joshua Jansen van Vüren, Thomas Niesler
Fine-Tuned Self-supervised Speech Representations for Language Diarization in Multilingual Code-Switched Speech. SACAIR (2022)
Madhurananda Pahar, Igor D. S. Miranda, Andreas H. Diacon, Thomas Niesler
Automatic non-invasive Cough Detection based on Accelerometer and Audio Signals. CoRR (2021)
Madhurananda Pahar, Marisa Klopper, Byron Reeve, Robin Warren, Grant Theron, Andreas H. Diacon, Thomas Niesler
Wake-Cough: cough spotting and cougher identification for personalised long-term cough monitoring. CoRR (2021)
Madhurananda Pahar, Thomas Niesler
Machine Learning based COVID-19 Detection from Smartphone Recordings: Cough, Breath and Speech. CoRR (2021)
Joshua Jansen van Vueren, Thomas Niesler
Optimised Code-Switched Language Model Data Augmentation in Four Under-Resourced South African Languages. SPECOM (2021)
Madhurananda Pahar, Igor D. S. Miranda, Andreas H. Diacon, Thomas Niesler
Deep Neural Network based Cough Detection using Bed-mounted Accelerometer Measurements. CoRR (2021)
Madhurananda Pahar, Igor D. S. Miranda, Andreas H. Diacon, Thomas Niesler
Deep Neural Network Based Cough Detection Using Bed-Mounted Accelerometer Measurements. ICASSP (2021)
Madhurananda Pahar, Marisa Klopper, Robin Warren, Thomas Niesler
COVID-19 cough classification using machine learning and global smartphone recordings. Comput. Biol. Medicine 135 (2021)
Nicholas Wilkinson, Thomas Niesler
A Hybrid CNN-BiLSTM Voice Activity Detector. ICASSP (2021)
Ewald van der Westhuizen, Trideba Padhi, Thomas Niesler
Multilingual Training Set Selection for ASR in Under-Resourced Malian Languages. SPECOM (2021)
Igor D. S. Miranda, Gildeberto Cardoso, Madhurananda Pahar, Gabriel Oliveira, Thomas Niesler
Machine Learning Prediction of Hospitalization due to COVID-19 based on Self-Reported Symptoms: A Study for Brazil. BHI (2021)
Madhurananda Pahar, Marisa Klopper, Byron Reeve, Grant Theron, Robin Warren, Thomas Niesler
Automatic Cough Classification for Tuberculosis Screening in a Real-World Environment. CoRR (2021)
Nick Wilkinson, Astik Biswas, Emre Yilmaz, Febe de Wet, Ewald van der Westhuizen, Thomas Niesler
Semi-supervised Acoustic Modelling for Five-lingual Code-switched ASR using Automatically-segmented Soap Opera Speech. SLTU/CCURL@LREC (2020)
Trideba Padhi, Astik Biswas, Febe de Wet, Ewald van der Westhuizen, Thomas Niesler
Multilingual Bottleneck Features for Improving ASR Performance of Code-Switched Speech in Under-Resourced Languages. CoRR (2020)
Morgan O'Kennedy, Thomas Niesler, Riaan Wolhuter, Nathalie Mitton
Practical evaluation of carrier sensing for a LoRa wildlife monitoring network. Networking (2020)
Astik Biswas, Febe de Wet, Ewald van der Westhuizen, Thomas Niesler
Semi-supervised acoustic and language model training for English-isiZulu code-switched speech recognition. CodeSwitch@LREC (2020)
Astik Biswas, Emre Yilmaz, Febe de Wet, Ewald van der Westhuizen, Thomas Niesler
Semi-supervised Development of ASR Systems for Multilingual Code-switched Speech in Under-resourced Languages. LREC (2020)
Rynhardt Kruger, Febe de Wet, Thomas Niesler
Interactive Image Exploration for Visually Impaired Readers using Audio-augmented Touch Gestures. IV (2020)
Astik Biswas, Emre Yilmaz, Febe de Wet, Ewald van der Westhuizen, Thomas Niesler
Semi-supervised Development of ASR Systems for Multilingual Code-switched Speech in Under-resourced Languages. CoRR (2020)
Madhurananda Pahar, Marisa Klopper, Robin Warren, Thomas Niesler
COVID-19 Cough Classification using Machine Learning and Global Smartphone Recordings. CoRR (2020)
Astik Biswas, Raghav Menon, Ewald van der Westhuizen, Thomas Niesler
Improved low-resource Somali speech recognition by semi-supervised acoustic and language model training. CoRR (2019)
Astik Biswas, Emre Yilmaz, Febe de Wet, Ewald van der Westhuizen, Thomas Niesler
Semi-Supervised Acoustic Model Training for Five-Lingual Code-Switched ASR. INTERSPEECH (2019)
Raghav Menon, Herman Kamper, Ewald van der Westhuizen, John A. Quinn, Thomas Niesler
Feature Exploration for Almost Zero-Resource ASR-Free Keyword Spotting Using a Multilingual Bottleneck Extractor and Correspondence Autoencoders. INTERSPEECH (2019)
Wiehan Agenbag, Thomas Niesler
Improving Automatically Induced Lexicons for Highly Agglutinating Languages Using Data-Driven Morphological Segmentation. INTERSPEECH (2019)
Ewald van der Westhuizen, Thomas Niesler
Synthesised bigrams using word embeddings for code-switched ASR of four South African language pairs. Comput. Speech Lang. 54 (2019)
Wiehan Agenbag, Thomas Niesler
Automatic sub-word unit discovery and pronunciation lexicon induction for ASR with application to under-resourced languages. Comput. Speech Lang. 57 (2019)
Lerato Lerato, Thomas Niesler
Feature trajectory dynamic time warping for clustering of speech segments. EURASIP J. Audio Speech Music. Process. 2019 (2019)
Astik Biswas, Raghav Menon, Ewald van der Westhuizen, Thomas Niesler
Improved Low-Resource Somali Speech Recognition by Semi-Supervised Acoustic and Language Model Training. INTERSPEECH (2019)
Astik Biswas, Emre Yilmaz, Febe de Wet, Ewald van der Westhuizen, Thomas Niesler
Semi-supervised acoustic model training for five-lingual code-switched ASR. CoRR (2019)
Ewald van der Westhuizen, Thomas Niesler
A First South African Corpus of Multilingual Code-switched Soap Opera Speech. LREC (2018)
Emre Yilmaz, Astik Biswas, Ewald van der Westhuizen, Febe de Wet, Thomas Niesler
Building a Unified Code-Switching ASR System for South African Languages. CoRR (2018)
Astik Biswas, Febe de Wet, Ewald van der Westhuizen, Emre Yilmaz, Thomas Niesler
Multilingual Neural Network Acoustic Modelling for ASR of Under-Resourced English-isiZulu Code-Switched Speech. INTERSPEECH (2018)
Raghav Menon, Herman Kamper, John A. Quinn, Thomas Niesler
Almost Zero-Resource ASR-free Keyword Spotting using Multilingual Bottleneck Features and Correspondence Autoencoders. CoRR (2018)
Raghav Menon, Herman Kamper, John A. Quinn, Thomas Niesler
Fast ASR-free and almost zero-resource keyword spotting using DTW and CNNs for humanitarian monitoring. CoRR (2018)
Raghav Menon, Astik Biswas, Armin Saeb, John A. Quinn, Thomas Niesler
Automatic Speech Recognition for Humanitarian Applications in Somali. CoRR (2018)
Raghav Menon, Astik Biswas, Armin Saeb, John A. Quinn, Thomas Niesler
Automatic Speech Recognition for Humanitarian Applications in Somali. SLTU (2018)
Astik Biswas, Ewald van der Westhuizen, Thomas Niesler, Febe de Wet
Improving ASR for Code-Switched Speech in Under-Resourced Languages Using Out-of-Domain Data. SLTU (2018)
Emre Yilmaz, Astik Biswas, Ewald van der Westhuizen, Febe de Wet, Thomas Niesler
Building a Unified Code-Switching ASR System for South African Languages. INTERSPEECH (2018)
Raghav Menon, Herman Kamper, Emre Yilmaz, John A. Quinn, Thomas Niesler
ASR-Free CNN-DTW Keyword Spotting Using Multilingual Bottleneck Features for Almost Zero-Resource Languages. SLTU (2018)
Raghav Menon, Herman Kamper, John A. Quinn, Thomas Niesler
Fast ASR-free and Almost Zero-resource Keyword Spotting Using DTW and CNNs for Humanitarian Monitoring. INTERSPEECH (2018)
Raghav Menon, Herman Kamper, Emre Yilmaz, John A. Quinn, Thomas Niesler
ASR-free CNN-DTW keyword spotting using multilingual bottleneck features for almost zero-resource languages. CoRR (2018)
Lerato Lerato, Thomas Niesler
Feature Trajectory Dynamic Time Warping for Clustering of Speech Segments. CoRR (2018)
Lerato Lerato, Thomas Niesler
Cluster Size Management in Multi-Stage Agglomerative Hierarchical Clustering of Acoustic Speech Segments. CoRR (2018)
Rudolf Byker, Thomas Niesler
Direction of Arrival Estimation of Wide-band Signals with Planar Microphone Arrays. CoRR (2018)
Jonathan Wotherspoon, Riaan Wolhuter, Thomas Niesler
Choosing an integrated radio-frequency module for a wildlife monitoring wireless sensor network. AFRICON (2017)
Solomon le Roux, Riaan Wolhuter, Thomas Niesler, Nobby Stevens
Energy benefits of on-board behaviour classification for animal-borne sensor applications. IEEE SENSORS (2017)
Armin Saeb, Raghav Menon, Hugh Cameron, William Kibira, John A. Quinn, Thomas Niesler
Very Low Resource Radio Browsing for Agile Developmental and Humanitarian Monitoring. INTERSPEECH (2017)
Ewald van der Westhuizen, Thomas Niesler
Synthesising isiZulu-English Code-Switch Bigrams Using Word Embeddings. INTERSPEECH (2017)
Raghav Menon, Armin Saeb, Hugh Cameron, William Kibira, John A. Quinn, Thomas Niesler
Radio-browsing for developmental monitoring in Uganda. ICASSP (2017)
Ewald van der Westhuizen, Thomas Niesler
The Effect of Postlexical Deletion on Automatic Speech Recognition in Fast Spontaneously Spoken Zulu. INTERSPEECH (2016)
Wiehan Agenbag, Thomas Niesler
Refining Sparse Coding Sub-word Unit Inventories with Lattice-constrained Viterbi Training. SLTU (2016)
Ewald van der Westhuizen, Thomas Niesler
Automatic Speech Recognition of English-isiZulu Code-switched Speech from South African Soap Operas. SLTU (2016)
Van Zyl van Vuuren, Louis ten Bosch, Thomas Niesler
Unconstrained Speech Segmentation using Deep Neural Networks. ICPRAM (1) (2015)
Wiehan Agenbag, Thomas Niesler
Automatic segmentation and clustering of speech using sparse coding and metaheuristic search. INTERSPEECH (2015)
Christiaan Rademan, Thomas Niesler
Improved visual speech synthesis using dynamic viseme k-means clustering and decision trees. AVSP (2015)
Lehlohonolo Mohasi, Milan Secujski, Robert Mak, Thomas Niesler
A Comparison of Two Prosody Modelling Approaches for Sesotho and Serbian. SPECOM (2014)
Herman Kamper, Febe de Wet, Thomas Hain, Thomas Niesler
Capitalising on North American speech resources for the development of a South African English large vocabulary speech recognition system. Comput. Speech Lang. 28 (6) (2014)
Van Zyl van Vuuren, Louis ten Bosch, Thomas Niesler
A dynamic programming framework for neural network-based automatic speech segmentation. INTERSPEECH (2013)
Herman Kamper, Félicien Jeje Muamba Mukanya, Thomas Niesler
Multi-accent acoustic modelling of South African English. Speech Commun. 54 (6) (2012)
Herman Kamper, Febe de Wet, Thomas Hain, Thomas Niesler
Resource development and experiments in automatic south african broadcast news transcription. SLTU (2012)
Febe de Wet, Pieter Müller, Christa van der Walt, Thomas Niesler
Readability index as a design criterion for elicited imitation tasks in automatic oral proficiency assessment. SLaTE (2011)
Herman Kamper, Thomas Niesler
Multi-Accent Speech Recognition of Afrikaans, Black and White Varieties of South African English. INTERSPEECH (2011)
Linsen Loots, Thomas Niesler
Automatic conversion between pronunciations of different English accents. Speech Commun. 53 (1) (2011)
Hansjörg Mixdorff, Lehlohonolo Mohasi, Malillo Machobane, Thomas Niesler
A Study on the Perception of Tone and Intonation in Sesotho. INTERSPEECH (2011)
Lehlohonolo Mohasi, Hansjörg Mixdorff, Thomas Niesler
An Acoustic Analysis of Tone in Sesotho. ICPhS (2011)
Thomas Niesler, Febe de Wet
The effect of code-mixing on accent identification accuracy. Comput. Speech Lang. 23 (4) (2009)
Febe de Wet, Christa van der Walt, Thomas Niesler
Automatic assessment of oral language proficiency and listening comprehension. Speech Commun. 51 (10) (2009)
Pieter Müller, Febe de Wet, Christa van der Walt, Thomas Niesler
Automatically assessing the oral proficiency of proficient L2 speakers. SLaTE (2009)
Linsen Loots, Thomas Niesler
Data-driven phonetic comparison and conversion between south african, british and american English pronunciations. INTERSPEECH (2009)
Thomas Niesler, Febe de Wet
Accent identification in the presence of code-mixing. Odyssey (2008)
Febe de Wet, Christa van der Walt, Thomas Niesler
Automatic large-scale oral language proficiency assessment. INTERSPEECH (2007)
Thomas Niesler
Language-dependent state clustering for multilingual acoustic modelling. Speech Commun. 49 (6) (2007)
Justus C. Roux, Philippa H. Louw, Thomas Niesler
The African Speech Technology Project: An Assessment. LREC (2004)
Thomas Niesler, Philippa H. Louw
Comparative phonetic analysis and phoneme recognition for Afrikaans, English and Xhosa using the African Speech Technology telephone speech databases. South Afr. Comput. J. 32 (2004)
Thomas Niesler, Daniel Willett
Unsupervised adaptation of statistical language models for speech recognition. South Afr. Comput. J. 30 (2003)
Daniel Willett, Thomas Niesler, Erik McDermott, Yasuhiro Minami, Shigeru Katagiri
Pervasive unsupervised adaptation for lecture speech transcription. ICASSP (1) (2003)
Thomas Niesler, Daniel Willett
Unsupervised language model adaptation for lecture speech transcription. INTERSPEECH (2002)
Thomas Niesler, Philip C. Woodland
Variable-length categoryn-gram language models. Comput. Speech Lang. 13 (1) (1999)
Philip C. Woodland, J. J. Odell, Thomas Hain, Gareth L. Moore, Thomas Niesler, Andreas Tuerk, Edward W. D. Whittaker
Improvements in accuracy and speed in the HTK broadcast news transcription system. EUROSPEECH (1999)
Thomas Hain, Philip C. Woodland, Thomas Niesler, Edward W. D. Whittaker
The 1998 HTK system for transcription of conversational telephone speech. ICASSP (1999)
Thomas Niesler, Edward W. D. Whittaker, Philip C. Woodland
Comparison of part-of-speech and automatically derived category-based language models for speech recognition. ICASSP (1998)
Philip C. Woodland, Thomas Hain, Sue E. Johnson, Thomas Niesler, Andreas Tuerk, Steve J. Young
Experiments in broadcast news transcription. ICASSP (1998)
Thomas Niesler, Philip C. Woodland
Modelling word-pair relations in a category-based language model. ICASSP (1997)

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Publication Activity (10 Years)

Top Topics

Top Venues

Thomas Niesler