Ewald van der Westhuizen

27 papers A 8B 2Journal 12Unranked 5

Year	Rank	Type	Title / Venue / Authors
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
2021	—	`conf`	Multilingual Training Set Selection for ASR in Under-Resourced Malian Languages. SPECOM Ewald van der Westhuizen, Trideba Padhi, 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	—	`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
2020	J	`jnl`	Semi-supervised acoustic and language model training for English-isiZulu code-switched speech recognition. CoRR Astik Biswas, Febe de Wet, Ewald van der Westhuizen, Thomas R. Niesler
2020	J	`jnl`	Semi-supervised acoustic modelling for five-lingual code-switched ASR using automatically-segmented soap opera speech. CoRR Nick Wilkinson, Astik Biswas, Emre Yilmaz, Febe de Wet, Ewald van der Westhuizen, Thomas R. 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	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`	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
2019	A	`conf`	Unsupervised Acoustic Unit Discovery for Speech Synthesis Using Discrete Latent-Variable Neural Networks. INTERSPEECH Ryan Eloff, André Nortje, Benjamin van Niekerk, Avashna Govender, Leanne Nortje, Arnu Pretorius, Elan Van Biljon, Ewald van der Westhuizen, Lisa van Staden, Herman Kamper
2019	J	`jnl`	Unsupervised acoustic unit discovery for speech synthesis using discrete latent-variable neural networks. CoRR Ryan Eloff, André Nortje, Benjamin van Niekerk, Avashna Govender, Leanne Nortje, Arnu Pretorius, Elan Van Biljon, Ewald van der Westhuizen, Lisa van Staden, Herman Kamper
2018	B	`conf`	A First South African Corpus of Multilingual Code-switched Soap Opera Speech. LREC Ewald van der Westhuizen, 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	—	`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	J	`jnl`	An Architectural Scheme for Real-Time Multiple Users Beam Tracking Systems. IEEE Syst. J. Hantao Xu, Hadi Aliakbarian, Ewald van der Westhuizen, Riaan Wolhuter, Guy A. E. Vandenbosch
2017	A	`conf`	Synthesising isiZulu-English Code-Switch Bigrams Using Word Embeddings. INTERSPEECH Ewald van der Westhuizen, 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	A	`conf`	The Effect of Postlexical Deletion on Automatic Speech Recognition in Fast Spontaneously Spoken Zulu. INTERSPEECH Ewald van der Westhuizen, Thomas Niesler