University of Minnesota. Computer-mediated communication, social data mining, computer-supported cooperative work, recommender system.

University of North Carolina at Wilmington. Classification of sonar returns, fingerprint matching, image compression, and constraint satisfaction.

Universität des Saarlandes. ACT-R cognitive modeling.

University of Groningen. Cognition, ACT-R, learning rules and productions.

College of Economics and Computer Science, Olsztyn, Poland. Unmanned aerial vehicles. Autonomous systems.

University of Illinois. Cumulative (lifelong, multi-task) learning and evolution of language.

University of Karlsruhe. Semantic web, OntoWeb, distributed knowledge, collaborative ontology, knowledge retrieval.

QinetiQ. Reinforcement learning and image target tracking.

Research topics: semantic web, knowledge management, and natural language processing. List of his publications, projects, courses taught, contact information.

East Carolina University. Spoken natural language dialog systems, dialog repairs, mixed-initiative, adaptive user interfaces.