Kasper Hornbæk is a professor at Computer Science, University of Copenhagen, Denmark. He works on user experience and on new interfaces. He has written about research methodology in HCI and has previously organized workshops at CHI (e.g., at CHI 2008).
Antti Oulasvirta is an Associate Professor at Aalto University where he leads the User Interfaces research group. His work focuses on modeling and optimization of human-computer interaction, including topics like text entry, gestural input, and biomechanics.
Stuart Reeves is EPSRC Senior Research Fellow in Computer Science at the University of Nottingham, UK. His work has examined the design and deployment of interactive technologies for a range of cultural, performance, and public settings. Currently, he examines relations between theory and practice in HCI.
Susanne Bødker is a professor of Computer Science, specifically HCI, at Aarhus University, Denmark. She has been doing research in participatory design, computer supported cooperative work and HCI since the early 1980s. She is currently doing research in the area of public services and citizen participation.