Roger Zimmermann is an Associate Professor with the Computer Science Department at the National University of Singapore (NUS). He is also a deputy director with the Interactive and Digital Media Institute (IDMI) at NUS and co-director of the Centre of Social Media Innovations for Communities (COSMIC). He holds a Ph.D. and an M.S. degree in Computer Science from the University of Southern California (USC). Among his research interests are mobile video management, streaming media architectures, distributed systems, spatio-temporal data management and location-based services. He has co-authored seven patents and more than two-hundred peer-reviewed articles in the aforementioned areas. He received the Best Paper Awards at the IEEE International Symposium on Multimedia (ISM) 2012 and the ACM SIGSPATIAL International Workshop on GeoStreaming (IWGS) 2016. Roger is on the editorial boards of the IEEE Multimedia Communications Technical Committee (MMTC) R-Letter and the Springer International Journal of Multimedia Tools and Applications (MTAP). He is also an associate editor for the ACM Transactions on Multimedia journal (ACM TOMM) and he has been elected to serve as Secretary of ACM SIGSPATIAL for the term 1 July 2014 to 30 June 2017. He has served on the conference program committees of many leading conferences and as reviewer of many journals. Recently he was the general chair of the ACM Multimedia Systems 2014 and the IEEE ISM 2015 conferences, and TPC co-chair of the ACM TVX 2017 conference.