The biennial conference series User Modeling (UM, 1986-2007) and Adaptive Hypermedia and Adaptive Web-Based Systems (AH, 2000-2008) have been merged into the annual conference series User Modeling, Adaptation, and Personalization (UMAP).

UMAP is the most important conference for those interested in any aspect of (interaction with) systems that acquire information about a user (or group of users) so as to be able to adapt their behavior to that user or group.

http://umap09.fbk.eu/