Jenneke Fokker, Johan Pouwelse and Wray Buntine; Departments of Industrial Design and Computer Sciences Delft University of Technology The Netherlands and Department of Computer Science, Helsinki Institute of Information Technology at Collaborative Taggi
Grigory Begelman, Philipp Keller, Frank Smadja; Technion Israel Institute of Technology, Citrin Informatik GmbH and RawSugar at Collaborative Tagging Workshop WWW 2006