Tim Schwartz is a researcher at DFKI (German Research Center for Artificial Intelligence) and is associated to the Cluster of Excellence for Multimodal Computing and Interaction at the Saarland University. He is currently working on his PhD thesis on the topic "Always Best Positioned Systems", which deals with indoor positioning methods and their applications. Tim was co-organizer and moderator of the MIAA workshop at IUI 2010.

Gerrit Kahl is a researcher at the German Research Center for Artificial Intelligence (DFKI) in Saarbrücken. He is also working at the Innovative Retail Laboratory, a living lab representing an instrumented shopping environment. He is currently working on his PhD thesis on the topic "Applying the Dual Reality Paradigm to Instrumented Shopping Environments". In this context, he is studying the visualization of simulator in- and outputs in a virtual model.

Eyal Dim is a researcher at the University of Haifa. He is currently working on his PhD thesis on the topic "Exploring the Potential of Social Signal Processing Technology for Supporting Leisure Activities: the Museum Group Visit Experience", which deals with indoor sensors and processing methods for detection and analysis of group social context.

Sally A. Applin is a Doctoral Candidate at the University of Kent at Canterbury, UK, in the Centre for Social Anthropology and Computing (CSAC). She holds a Masters degree from the graduate Interactive Telecommunications Program (NYU/ITP) within New York University's Tisch School of the Arts, and a BA in Conceptual Design from San Francisco State University. Sally has had a 20 year career in the science museum design, computer software, telecommunications, and product design/definition industries working as a Senior UX Designer, Senior Consultant and Ethnographer.