University of Twente. Interaction models in (spoken) dialogue systems, specification techniques and multimodal systems and virtual environments, multiagent virtual environments.
Universität des Saarlandes. Multimodal and perceptive user interfaces, user modeling, ambient intelligence, embodied conversational agents, smart navigation systems, semantic web services, and resource-adaptive cognitive technologies, VERMOBIL.
University of Sheffield. Natural language processing, specifically in spoken dialogue systems, machine learning in dialogue, spoken language generation, multimodal human-computer interaction, and evaluation of dialogue systems.
Researcher in multi-agent planning at Delft University of Technology. Tutorial on multi-agent planning, list of own publications and publications related to distributed AI.