Title: "A User-Adaptive Interface Agency for Interaction with a Virtual Environment" Authors: Britta Lenzmann and Ipke Wachsmuth Faculty of Technology University of Bielefeld P.O. Box 100131, D-33501 Bielefeld, Germany {britta,ipke}@techfak.uni-bielefeld.de Abstract: This paper describes an approach to user adaptation realized in a multiagent interface system for interaction with a virtual environment. Single agents of the interface system adapt to users' individual preferences by learning from direct feedback. The core idea is that agents that were successful in meeting the user's expectations are given credit while unsuccessful agents are ``discredited.'' Communicating credit values, agents organize themselves so that the overall behavior of the interface agency gradually adapts to the individual user as the session is proceeding.