Benz, Dominik and Grobelnik, Marko and Hotho, Andreas and Jäschke, Robert and Mladenic, Dunja and Servedio, Vito D. P. and Sizov, Sergej and Szomszor, Martin. Analyzing Tag Semantics Across Collaborative Tagging Systems. Proceedings of the Dagstuhl Seminar on Social Web Communities. editor(s) Alani, Harith and Staab, Steffen and Stumme, Gerd. 08391: Year 2008.