Twitter, Facebook, and other related systems that we call social awareness streams are rapidly changing the information and communication dynamics of our society. These systems, w...
The annotation of web sites in social bookmarking systems has become a popular way to manage and find information on the web. The community structure of such systems attracts spam...
Beate Krause, Christoph Schmitz, Andreas Hotho, Ge...
Virtual communities have become an important new organizational form and yet relatively little is known about the conditions which lead to their success. In an attempt to address ...
A corporate portal supports a community of users on cohesively managing a shared set of resources. Such management should also include social tagging, i.e. the practice of collabor...
Emergence of the web and online computing applications gave rise to rich large scale social activity data. One of the principal challenges then is to build models and understandin...