Dialogue Act Recognition with Bayesian Networks for Dutch Dialogues. - Simon Keizer; Rieks op den Akker; Anton Nijholt (SIGDIAL Workshop, 2002)

From question answering to spoken dialogue: towards an information search assistant for interactive multimodal information extraction. - Rieks op den Akker; Harry Bunt; Simon Keizer; Boris W. van Schooten (INTERSPEECH, 2005)

Multidimensional Dialogue Management. - Simon Keizer; Harry Bunt (SIGDIAL Workshop, 2006)

Dialogue Simulation and Context Dynamics for Dialogue Management. - Simon Keizer; Roser Morante (NODALIDA, 2007)

An Empirically Based Computational Model of Grounding in Dialogue. - Harry Bunt; Roser Morante; Simon Keizer (SIGdial, 2007)

Evaluating Combinations of Dialogue Acts for Generation. - Simon Keizer; Harry Bunt (SIGdial, 2007)

Dialogue act recognition under uncertainty using Bayesian networks. - Simon Keizer; Rieks op den Akker (Nat. Lang. Eng., 2007)

User study of the Bayesian update of dialogue state approach to dialogue management. - Blaise Thomson; Milica Gasic; Simon Keizer; François Mairesse; Jost Schatzmann; Kai Yu 004; Steve J. Young (INTERSPEECH, 2008)

Evaluating semantic-level confidence scores with multiple hypotheses. - Blaise Thomson; Kai Yu 004; Milica Gasic; Simon Keizer; François Mairesse; Jost Schatzmann; Steve J. Young (INTERSPEECH, 2008)

Training and Evaluation of the HIS POMDP Dialogue System in Noise. - Milica Gasic; Simon Keizer; François Mairesse; Jost Schatzmann; Blaise Thomson; Kai Yu 004; Steve J. Young (SIGDIAL Workshop, 2008)

Modelling user behaviour in the HIS-POMDP dialogue manager. - Simon Keizer; Milica Gasic; François Mairesse; Blaise Thomson; Kai Yu 004; Steve J. Young (SLT, 2008)

Back-off action selection in summary space-based POMDP dialogue systems. - Milica Gasic; Fabrice Lefèvre; Filip Jurcícek; Simon Keizer; François Mairesse; Blaise Thomson; Kai Yu 004; Steve J. Young (ASRU, 2009)

Spoken language understanding from unaligned data using discriminative classification models. - François Mairesse; Milica Gasic; Filip Jurcícek; Simon Keizer; Blaise Thomson; Kai Yu 004; Steve J. Young (ICASSP, 2009)

Probablistic modelling of F0 in unvoiced regions in HMM based speech synthesis. - Kai Yu 004; Tomoki Toda; Milica Gasic; Simon Keizer; François Mairesse; Blaise Thomson; Steve J. Young (ICASSP, 2009)

Transformation-based learning for semantic parsing. - Filip Jurcícek; Milica Gasic; Simon Keizer; François Mairesse; Blaise Thomson; Kai Yu 004; Steve J. Young (INTERSPEECH, 2009)

k-Nearest Neighbor Monte-Carlo Control Algorithm for POMDP-Based Dialogue Systems. - Fabrice Lefèvre; Milica Gasic; Filip Jurcícek; Simon Keizer; François Mairesse; Blaise Thomson; Kai Yu 004; Steve J. Young (SIGDIAL Conference, 2009)

Phrase-Based Statistical Language Generation Using Graphical Models and Active Learning. - François Mairesse; Milica Gasic; Filip Jurcícek; Simon Keizer; Blaise Thomson; Kai Yu 004; Steve J. Young (ACL, 2010)

Natural belief-critic: a reinforcement algorithm for parameter estimation in statistical spoken dialogue systems. - Filip Jurcícek; Blaise Thomson; Simon Keizer; François Mairesse; Milica Gasic; Kai Yu 004; Steve J. Young (INTERSPEECH, 2010)

Gaussian Processes for Fast Policy Optimisation of POMDP-based Dialogue Managers. - Milica Gasic; Filip Jurcícek; Simon Keizer; François Mairesse; Blaise Thomson; Kai Yu 004; Steve J. Young (SIGDIAL Conference, 2010)

Parameter estimation for agenda-based user simulation. - Simon Keizer; Milica Gasic; Filip Jurcícek; François Mairesse; Blaise Thomson; Kai Yu 004; Steve J. Young (SIGDIAL Conference, 2010)

Parameter learning for POMDP spoken dialogue models. - Blaise Thomson; Filip Jurcícek; Milica Gasic; Simon Keizer; François Mairesse; Kai Yu 004; Steve J. Young (SLT, 2010)

Bayesian dialogue system for the Let's Go Spoken Dialogue Challenge. - Blaise Thomson; Kai Yu 004; Simon Keizer; Milica Gasic; Filip Jurcícek; François Mairesse; Steve J. Young (SLT, 2010)

The Hidden Information State model: A practical framework for POMDP-based spoken dialogue management. - Steve J. Young; Milica Gasic; Simon Keizer; François Mairesse; Jost Schatzmann; Blaise Thomson; Kai Yu 004 (Comput. Speech Lang., 2010)

Adaptive Information Presentation for Spoken Dialogue Systems: Evaluation with real users. - Verena Rieser; Simon Keizer; Oliver Lemon; Xingkun Liu (ENLG, 2011)

Real User Evaluation of Spoken Dialogue Systems Using Amazon Mechanical Turk. - Filip Jurcícek; Simon Keizer; Milica Gasic; François Mairesse; Blaise Thomson; Kai Yu 004; Steve J. Young (INTERSPEECH, 2011)

Spoken Dialog Challenge 2010: Comparison of Live and Control Test Results. - Alan W. Black; Susanne Burger; Alistair Conkie; Helen Wright Hastie; Simon Keizer; Oliver Lemon; Nicolas Merigaud; Gabriel Parent; Gabriel Schubiner; Blaise Thomson; Jason D. Williams; Kai Yu 004; et al. (SIGDIAL Conference, 2011)

Multidimensional Dialogue Management. - Simon Keizer; Harry Bunt; Volha Petukhova (Interactive Multi-modal Question-Answering, 2011)

Training and evaluation of an MDP model for social multi-user human-robot interaction. - Simon Keizer; Mary Ellen Foster; Oliver Lemon; Andre Gaschler; Manuel Giuliani (SIGDIAL Conference, 2013)

Towards action selection under uncertainty for a socially aware robot bartender. - Mary Ellen Foster; Simon Keizer; Oliver Lemon (HRI, 2014)

Handling uncertain input in multi-user human-robot interaction. - Simon Keizer; Mary Ellen Foster; Andre Gaschler; Manuel Giuliani; Amy Isard; Oliver Lemon (RO-MAN, 2014)

Evaluating a social multi-user interaction model using a Nao robot. - Simon Keizer; Pantelis Kastoris; Mary Ellen Foster; Amol A. Deshmukh; Oliver Lemon (RO-MAN, 2014)

Real user evaluation of a POMDP spoken dialogue system using automatic belief compression. - Paul A. Crook; Simon Keizer; Zhuoran Wang; Wenshuo Tang; Oliver Lemon (Comput. Speech Lang., 2014)

Natural Language Generation as Incremental Planning Under Uncertainty: Adaptive Information Presentation for Statistical Dialogue Systems. - Verena Rieser; Oliver Lemon; Simon Keizer (IEEE ACM Trans. Audio Speech Lang. Process., 2014)

Machine Learning for Social Multiparty Human-Robot Interaction. - Simon Keizer; Mary Ellen Foster; Zhuoran Wang; Oliver Lemon (ACM Trans. Interact. Intell. Syst., 2014)

Learning Trading Negotiations Using Manually and Automatically Labelled Data. - Heriberto Cuayáhuitl; Simon Keizer; Oliver Lemon (ICTAI, 2015)

Learning to Trade in Strategic Board Games. - Heriberto Cuayáhuitl; Simon Keizer; Oliver Lemon (CGW/GIGA@IJCAI, 2015)

Strategic Dialogue Management via Deep Reinforcement Learning. - Heriberto Cuayáhuitl; Simon Keizer; Oliver Lemon (CoRR, 2015)

Extrinsic Versus Intrinsic Evaluation of Natural Language Generation for Spoken Dialogue Systems and Social Robotics. - Helen F. Hastie; Heriberto Cuayáhuitl; Nina Dethlefs; Simon Keizer; Xingkun Liu (IWSDS, 2016)

Evaluating Persuasion Strategies and Deep Reinforcement Learning methods for Negotiation Dialogue agents. - Simon Keizer; Markus Guhe; Heriberto Cuayáhuitl; Ioannis Efstathiou; Klaus-Peter Engelbrecht; Mihai Sorin Dobre; Alex Lascarides; Oliver Lemon (EACL (2), 2017)

Towards Learning Transferable Conversational Skills using Multi-dimensional Dialogue Modelling. - Simon Keizer; Verena Rieser (CoRR, 2018)

User Evaluation of a Multi-dimensional Statistical Dialogue System. - Simon Keizer; Ondrej Dusek; Xingkun Liu; Verena Rieser (SIGdial, 2019)

The ISO Standard for Dialogue Act Annotation, Second Edition. - Harry Bunt; Volha Petukhova; Emer Gilmartin; Catherine Pelachaud; Alex Chengyu Fang; Simon Keizer; Laurent Prévot 001 (LREC, 2020)

A Study on Cross-Corpus Speech Emotion Recognition and Data Augmentation. - Norbert Braunschweiler; Rama Doddipatla; Simon Keizer; Svetlana Stoyanchev (ASRU, 2021)

Dialogue Strategy Adaptation to New Action Sets Using Multi-Dimensional Modelling. - Simon Keizer; Norbert Braunschweiler; Svetlana Stoyanchev; Rama Doddipatla (ASRU, 2021)

Action State Update Approach to Dialogue Management. - Svetlana Stoyanchev; Simon Keizer; Rama Doddipatla (ICASSP, 2021)

Combining Structured and Unstructured Knowledge in an Interactive Search Dialogue System. - Svetlana Stoyanchev; Suraj Pandey; Simon Keizer; Norbert Braunschweiler; Rama Sanand Doddipatla (SIGDIAL, 2022)

Factors in Emotion Recognition With Deep Learning Models Using Speech and Text on Multiple Corpora. - Norbert Braunschweiler; Rama Doddipatla; Simon Keizer; Svetlana Stoyanchev (IEEE Signal Process. Lett., 2022)

Enabling Semi-Structured Knowledge Access via a Question-Answering Module in Task-oriented Dialogue Systems. - Norbert Braunschweiler; Rama Sanand Doddipatla; Simon Keizer; Svetlana Stoyanchev (CUI, 2023)

Adversarial learning of neural user simulators for dialogue policy optimisation. - Simon Keizer; Caroline Dockes; Norbert Braunschweiler; Svetlana Stoyanchev; Rama Doddipatla (CoRR, 2023)

Evaluating Large Language Models for Document-grounded Response Generation in Information-Seeking Dialogues. - Norbert Braunschweiler; Rama Doddipatla; Simon Keizer; Svetlana Stoyanchev (CoRR, 2023)

Prompting Whisper for QA-driven Zero-shot End-to-end Spoken Language Understanding. - Mohan Li; Simon Keizer; Rama Doddipatla (INTERSPEECH, 2024)

WHISMA: A Speech-LLM to Perform Zero-Shot Spoken Language Understanding. - Mohan Li; Cong-Thanh Do; Simon Keizer; Youmna Farag; Svetlana Stoyanchev; Rama Doddipatla (SLT, 2024)

Entity Resolution in Situated Dialog With Unimodal and Multimodal Transformers. - Alejandro Santorum Varela; Svetlana Stoyanchev; Simon Keizer; Rama Doddipatla; Kate M. Knill (IEEE ACM Trans. Audio Speech Lang. Process., 2024)

Conditional Multi-Stage Failure Recovery for Embodied Agents. - Youmna Farag; Svetlana Stoyanchev; Mohan Li; Simon Keizer; Rama Doddipatla (CoRR, 2025)