3 Shilad Sen Shyong K. Lam Dan Cosley Al Mamunur Rashid Dan Frankowski Franklin Harper Jeremy Osterhouse John Riedl 2006 Computer Supported Cooperative Work Banff, Alberta, Canada ACM 181-190 04/11/2006 1-59593-249-6 <p>A tagging community's vocabulary of tags forms the basis for social navigation and shared expression.We present a user-centric model of vocabulary evolution in tagging communities based on community influence and personal tendency. We evaluate our model in an emergent tagging system by introducing tagging features into the MovieLens recommender system.We explore four tag selection algorithms for displaying tags applied by other community members. We analyze the algorithms 'effect on vocabulary evolution, tag utility, tag adoption, and user satisfaction.</p> http://www.grouplens.org/papers/pdf/sen-cscw2006.pdf