Carel van Niekerk

52 papers A* 2B 13C 1Journal 31Unranked 4

Year	Rank	Type	Title / Venue / Authors
2025	J	`jnl`	A Confidence-based Acquisition Model for Self-supervised Active Learning and Label Correction. Trans. Assoc. Comput. Linguistics Carel van Niekerk, Christian Geishauser, Michael Heck, Shutong Feng, Hsien-Chin Lin, Nurul Lubis, Benjamin Matthias Ruppik, Renato Vukovic, Milica Gasic
2025	J	`jnl`	Emotionally Intelligent Task-oriented Dialogue Systems: Architecture, Representation, and Optimisation. CoRR Shutong Feng, Hsien-Chin Lin, Nurul Lubis, Carel van Niekerk, Michael Heck, Benjamin Matthias Ruppik, Renato Vukovic, Milica Gasic
2025	A*	`conf`	Learning from Noisy Labels via Self-Taught On-the-Fly Meta Loss Rescaling. AAAI Michael Heck, Christian Geishauser, Nurul Lubis, Carel van Niekerk, Shutong Feng, Hsien-Chin Lin, Benjamin Matthias Ruppik, Renato Vukovic, Milica Gasic
2025	J	`jnl`	Less is More: Local Intrinsic Dimensions of Contextual Language Models. CoRR Benjamin Matthias Ruppik, Julius von Rohrscheidt, Carel van Niekerk, Michael Heck, Renato Vukovic, Shutong Feng, Hsien-Chin Lin, Nurul Lubis, Bastian Rieck, Marcus Zibrowius, Milica Gasic
2025	J	`jnl`	Post-Training Large Language Models via Reinforcement Learning from Self-Feedback. CoRR Carel van Niekerk, Renato Vukovic, Benjamin Matthias Ruppik, Hsien-Chin Lin, Milica Gasic
2025	J	`jnl`	Prompt reinforcing for long-term planning of large language models. CoRR Hsien-Chin Lin, Benjamin Matthias Ruppik, Carel van Niekerk, Chia-Hao Shen, Michael Heck, Nurul Lubis, Renato Vukovic, Shutong Feng, Milica Gasic
2025	J	`jnl`	Text-to-SQL Task-oriented Dialogue Ontology Construction. CoRR Renato Vukovic, Carel van Niekerk, Michael Heck, Benjamin Matthias Ruppik, Hsien-Chin Lin, Shutong Feng, Nurul Lubis, Milica Gasic
2024	B	`conf`	Dialogue Ontology Relation Extraction via Constrained Chain-of-Thought Decoding. SIGDIAL Renato Vukovic, David Arps, Carel van Niekerk, Benjamin Matthias Ruppik, Hsien-Chin Lin, Michael Heck, Milica Gasic
2024	J	`jnl`	Dialogue Ontology Relation Extraction via Constrained Chain-of-Thought Decoding. CoRR Renato Vukovic, David Arps, Carel van Niekerk, Benjamin Matthias Ruppik, Hsien-Chin Lin, Michael Heck, Milica Gasic
2024	B	`conf`	Infusing Emotions into Task-oriented Dialogue Systems: Understanding, Management, and Generation. SIGDIAL Shutong Feng, Hsien-Chin Lin, Christian Geishauser, Nurul Lubis, Carel van Niekerk, Michael Heck, Benjamin Matthias Ruppik, Renato Vukovic, Milica Gasic
2024	J	`jnl`	Infusing Emotions into Task-oriented Dialogue Systems: Understanding, Management, and Generation. CoRR Shutong Feng, Hsien-Chin Lin, Christian Geishauser, Nurul Lubis, Carel van Niekerk, Michael Heck, Benjamin Matthias Ruppik, Renato Vukovic, Milica Gasic
2024	J	`jnl`	Learning With an Open Horizon in Ever-Changing Dialogue Circumstances. IEEE ACM Trans. Audio Speech Lang. Process. Christian Geishauser, Carel van Niekerk, Nurul Lubis, Hsien-Chin Lin, Michael Heck, Shutong Feng, Benjamin Matthias Ruppik, Renato Vukovic, Milica Gasic
2024	J	`jnl`	Learning from Noisy Labels via Self-Taught On-the-Fly Meta Loss Rescaling. CoRR Michael Heck, Christian Geishauser, Nurul Lubis, Carel van Niekerk, Shutong Feng, Hsien-Chin Lin, Benjamin Matthias Ruppik, Renato Vukovic, Milica Gasic
2024	J	`jnl`	Local Topology Measures of Contextual Language Model Latent Spaces With Applications to Dialogue Term Extraction. CoRR Benjamin Matthias Ruppik, Michael Heck, Carel van Niekerk, Renato Vukovic, Hsien-Chin Lin, Shutong Feng, Marcus Zibrowius, Milica Gasic
2024	B	`conf`	Local Topology Measures of Contextual Language Model Latent Spaces with Applications to Dialogue Term Extraction. SIGDIAL Benjamin Matthias Ruppik, Michael Heck, Carel van Niekerk, Renato Vukovic, Hsien-Chin Lin, Shutong Feng, Marcus Zibrowius, Milica Gasic
2024	—	`—`	Uncertainty Estimation, Management, and Utilisation in Human-Computer Dialogue. Carel van Niekerk
2023	J	`jnl`	CAMELL: Confidence-based Acquisition Model for Efficient Self-supervised Active Learning with Label Validation. CoRR Carel van Niekerk, Christian Geishauser, Michael Heck, Shutong Feng, Hsien-Chin Lin, Nurul Lubis, Benjamin Matthias Ruppik, Renato Vukovic, Milica Gasic
2023	—	`conf`	ChatGPT for Zero-shot Dialogue State Tracking: A Solution or an Opportunity? ACL (2) Michael Heck, Nurul Lubis, Benjamin Matthias Ruppik, Renato Vukovic, Shutong Feng, Christian Geishauser, Hsien-Chin Lin, Carel van Niekerk, Milica Gasic
2023	J	`jnl`	ChatGPT for Zero-shot Dialogue State Tracking: A Solution or an Opportunity? CoRR Michael Heck, Nurul Lubis, Benjamin Matthias Ruppik, Renato Vukovic, Shutong Feng, Christian Geishauser, Hsien-Chin Lin, Carel van Niekerk, Milica Gasic
2023	—	`conf`	ConvLab-3: A Flexible Dialogue System Toolkit Based on a Unified Data Format. EMNLP (Demos) Qi Zhu, Christian Geishauser, Hsien-Chin Lin, Carel van Niekerk, Baolin Peng, Zheng Zhang, Shutong Feng, Michael Heck, Nurul Lubis, Dazhen Wan, Xiaochen Zhu, Jianfeng Gao, Milica Gasic, Minlie Huang
2023	A*	`conf`	EmoUS: Simulating User Emotions in Task-Oriented Dialogues. SIGIR Hsien-Chin Lin, Shutong Feng, Christian Geishauser, Nurul Lubis, Carel van Niekerk, Michael Heck, Benjamin Matthias Ruppik, Renato Vukovic, Milica Gasic
2023	J	`jnl`	EmoUS: Simulating User Emotions in Task-Oriented Dialogues. CoRR Hsien-Chin Lin, Shutong Feng, Christian Geishauser, Nurul Lubis, Carel van Niekerk, Michael Heck, Benjamin Matthias Ruppik, Renato Vukovic, Milica Gasic
2023	B	`conf`	From Chatter to Matter: Addressing Critical Steps of Emotion Recognition Learning in Task-oriented Dialogue. SIGDIAL Shutong Feng, Nurul Lubis, Benjamin Matthias Ruppik, Christian Geishauser, Michael Heck, Hsien-Chin Lin, Carel van Niekerk, Renato Vukovic, Milica Gasic
2023	J	`jnl`	From Chatter to Matter: Addressing Critical Steps of Emotion Recognition Learning in Task-oriented Dialogue. CoRR Shutong Feng, Nurul Lubis, Benjamin Matthias Ruppik, Christian Geishauser, Michael Heck, Hsien-Chin Lin, Carel van Niekerk, Renato Vukovic, Milica Gasic
2022	J	`jnl`	ConvLab-3: A Flexible Dialogue System Toolkit Based on a Unified Data Format. CoRR Qi Zhu, Christian Geishauser, Hsien-Chin Lin, Carel van Niekerk, Baolin Peng, Zheng Zhang, Michael Heck, Nurul Lubis, Dazhen Wan, Xiaochen Zhu, Jianfeng Gao, Milica Gasic, Minlie Huang
2022	B	`conf`	Dialogue Evaluation with Offline Reinforcement Learning. SIGDIAL Nurul Lubis, Christian Geishauser, Hsien-Chin Lin, Carel van Niekerk, Michael Heck, Shutong Feng, Milica Gasic
2022	J	`jnl`	Dialogue Evaluation with Offline Reinforcement Learning. CoRR Nurul Lubis, Christian Geishauser, Hsien-Chin Lin, Carel van Niekerk, Michael Heck, Shutong Feng, Milica Gasic
2022	B	`conf`	Dialogue Term Extraction using Transfer Learning and Topological Data Analysis. SIGDIAL Renato Vukovic, Michael Heck, Benjamin Matthias Ruppik, Carel van Niekerk, Marcus Zibrowius, Milica Gasic
2022	J	`jnl`	Dialogue Term Extraction using Transfer Learning and Topological Data Analysis. CoRR Renato Vukovic, Michael Heck, Benjamin Matthias Ruppik, Carel van Niekerk, Marcus Zibrowius, Milica Gasic
2022	J	`jnl`	Dynamic Dialogue Policy Transformer for Continual Reinforcement Learning. CoRR Christian Geishauser, Carel van Niekerk, Nurul Lubis, Michael Heck, Hsien-Chin Lin, Shutong Feng, Milica Gasic
2022	B	`conf`	Dynamic Dialogue Policy for Continual Reinforcement Learning. COLING Christian Geishauser, Carel van Niekerk, Hsien-Chin Lin, Nurul Lubis, Michael Heck, Shutong Feng, Milica Gasic
2022	B	`conf`	EmoWOZ: A Large-Scale Corpus and Labelling Scheme for Emotion Recognition in Task-Oriented Dialogue Systems. LREC Shutong Feng, Nurul Lubis, Christian Geishauser, Hsien-Chin Lin, Michael Heck, Carel van Niekerk, Milica Gasic
2022	B	`conf`	GenTUS: Simulating User Behaviour and Language in Task-oriented Dialogues with Generative Transformers. SIGDIAL Hsien-Chin Lin, Christian Geishauser, Shutong Feng, Nurul Lubis, Carel van Niekerk, Michael Heck, Milica Gasic
2022	J	`jnl`	GenTUS: Simulating User Behaviour and Language in Task-oriented Dialogues with Generative Transformers. CoRR Hsien-Chin Lin, Christian Geishauser, Shutong Feng, Nurul Lubis, Carel van Niekerk, Michael Heck, Milica Gasic
2022	J	`jnl`	Robust Dialogue State Tracking with Weak Supervision and Sparse Data. CoRR Michael Heck, Nurul Lubis, Carel van Niekerk, Shutong Feng, Christian Geishauser, Hsien-Chin Lin, Milica Gasic
2022	J	`jnl`	Robust Dialogue State Tracking with Weak Supervision and Sparse Data. Trans. Assoc. Comput. Linguistics Michael Heck, Nurul Lubis, Carel van Niekerk, Shutong Feng, Christian Geishauser, Hsien-Chin Lin, Milica Gasic
2021	B	`conf`	Domain-independent User Simulation with Transformers for Task-oriented Dialogue Systems. SIGDIAL Hsien-Chin Lin, Nurul Lubis, Songbo Hu, Carel van Niekerk, Christian Geishauser, Michael Heck, Shutong Feng, Milica Gasic
2021	J	`jnl`	Domain-independent User Simulation with Transformers for Task-oriented Dialogue Systems. CoRR Hsien-Chin Lin, Nurul Lubis, Songbo Hu, Carel van Niekerk, Christian Geishauser, Michael Heck, Shutong Feng, Milica Gasic
2021	J	`jnl`	EmoWOZ: A Large-Scale Corpus and Labelling Scheme for Emotion in Task-Oriented Dialogue Systems. CoRR Shutong Feng, Nurul Lubis, Christian Geishauser, Hsien-Chin Lin, Michael Heck, Carel van Niekerk, Milica Gasic
2021	—	`conf`	Uncertainty Measures in Neural Belief Tracking and the Effects on Dialogue Policy Performance. EMNLP (1) Carel van Niekerk, Andrey Malinin, Christian Geishauser, Michael Heck, Hsien-Chin Lin, Nurul Lubis, Shutong Feng, Milica Gasic
2021	J	`jnl`	Uncertainty Measures in Neural Belief Tracking and the Effects on Dialogue Policy Performance. CoRR Carel van Niekerk, Andrey Malinin, Christian Geishauser, Michael Heck, Hsien-Chin Lin, Nurul Lubis, Shutong Feng, Milica Gasic
2021	J	`jnl`	What Does The User Want? Information Gain for Hierarchical Dialogue Policy Optimisation. CoRR Christian Geishauser, Songbo Hu, Hsien-Chin Lin, Nurul Lubis, Michael Heck, Shutong Feng, Carel van Niekerk, Milica Gasic
2021	C	`conf`	What does the User Want? Information Gain for Hierarchical Dialogue Policy Optimisation. ASRU Christian Geishauser, Songbo Hu, Hsien-Chin Lin, Nurul Lubis, Michael Heck, Shutong Feng, Carel van Niekerk, Milica Gasic
2020	J	`jnl`	Adaptable Conversational Machines. AI Mag. Nurul Lubis, Michael Heck, Carel van Niekerk, Milica Gasic
2020	—	`conf`	Knowing What You Know: Calibrating Dialogue Belief State Distributions via Ensembles. EMNLP (Findings) Carel van Niekerk, Michael Heck, Christian Geishauser, Hsien-Chin Lin, Nurul Lubis, Marco Moresi, Milica Gasic
2020	J	`jnl`	Knowing What You Know: Calibrating Dialogue Belief State Distributions via Ensembles. CoRR Carel van Niekerk, Michael Heck, Christian Geishauser, Hsien-Chin Lin, Nurul Lubis, Marco Moresi, Milica Gasic
2020	B	`conf`	LAVA: Latent Action Spaces via Variational Auto-encoding for Dialogue Policy Optimization. COLING Nurul Lubis, Christian Geishauser, Michael Heck, Hsien-Chin Lin, Marco Moresi, Carel van Niekerk, Milica Gasic
2020	J	`jnl`	LAVA: Latent Action Spaces via Variational Auto-encoding for Dialogue Policy Optimization. CoRR Nurul Lubis, Christian Geishauser, Michael Heck, Hsien-Chin Lin, Marco Moresi, Carel van Niekerk, Milica Gasic
2020	B	`conf`	Out-of-Task Training for Dialog State Tracking Models. COLING Michael Heck, Christian Geishauser, Hsien-Chin Lin, Nurul Lubis, Marco Moresi, Carel van Niekerk, Milica Gasic
2020	J	`jnl`	Out-of-Task Training for Dialog State Tracking Models. CoRR Michael Heck, Carel van Niekerk, Nurul Lubis, Christian Geishauser, Hsien-Chin Lin, Marco Moresi, Milica Gasic
2020	B	`conf`	TripPy: A Triple Copy Strategy for Value Independent Neural Dialog State Tracking. SIGdial Michael Heck, Carel van Niekerk, Nurul Lubis, Christian Geishauser, Hsien-Chin Lin, Marco Moresi, Milica Gasic
2020	J	`jnl`	TripPy: A Triple Copy Strategy for Value Independent Neural Dialog State Tracking. CoRR Michael Heck, Carel van Niekerk, Nurul Lubis, Christian Geishauser, Hsien-Chin Lin, Marco Moresi, Milica Gasic