User Modeling and User-Adapted Interaction INSTRUCTIONS FOR AUTHORS EDITOR-IN-CHIEF Prof. Dr. Alfred Kobsa Department of Information and Computer Science, University of California, Irvine, CA 92697-3425, U.S.A. E-mail: kobsa@uci.edu Fax: +1 949 824-4056 Phone: +1 949 824-3007 Book Review Editor Diane Litman AT&T Labs Research USA E-mail: diane@research.att.com AIMS AND SCOPE User Modeling and User-Adapted Interaction (UMUAI) provides an interdisci- plinary forum for the dissemination of new research results on interactive computer systems that can be adapted or adapt themselves to their current users, and on the usage of user models for adaptation purposes. The journal publishes relevant high-quality original papers from, e.g., the following areas: ^ acquisition of user and student models ^ conceptual models, mental models ^ levels of user expertise ^ intelligent information retrieval ^ plan recognition and generation ^ presentation planning ^ adaptive agents ^ adaptive interfaces ^ information ¢ltering ^ adaptive hypertext and hypermedia ^adaptation to the handicapped and elderly User Modeling and User-Adapted Interaction 12: 97^104, 2002. 97