Cathal Gurrin is a lecturer at the School of Computing, at Dublin City University and a faculty member of the Centre for Digital Video Processing and the Human Media Archives group at Dublin City University and a collaborating investigator on the new SFI funded CLARITY Centre for Science & Technology at Dublin City University and University College Dublin. In addition to his work at Dublin City University, he is an adjunct faculty member at the Department of Computer Science at the University of Tromso, Norway. Prior to 2008, he was a postdoctoral researcher in the Centre for Digital Video Processing at Dublin City University. His early research interests covered the application of linkage analysis techniques to web search, but this has broadened to cover Human Digital Memories, the indexing and content-based retrieval of information in all media, text, image, audio and especially digital video. In his early postdoc years, he was the developer of the search engines supporting many of the Fischlar digital video search demonstrator systems. He was the PC co-chair of ECIR 2010 in Milton-Keynes, UK and is co-organiser of Sensecam 2010 in Dublin, Ireland. He has published over sixty book chapters, journal articles and conference papers.