I am an associate professor of Computer Science at the University of Illinois at Urbana-Champaign. I am interested in intelligent user interfaces, health informatics, social computing, and spatial interfaces. I am the program chair of ACM IUI (Intelligent User Interfaces) 2017, the general chair of IEEE ICHI (Healthcare Informatics) 2016, and the program chair of IEEE ICHI 2015. I am the Associate Editor of ACM Transactions on Intelligent Interactive Systems (TiiS) and Topics in Cognitive Science.