Book (berendt2008challenge)
Berendt, B.; Glance, N. & Hotho, A. (ed.)
Wikis, Blogs, Bookmarking Tools - Mining the Web 2.0 Workshop
Workshop at 18th Europ. Conf. on Machine Learning (ECML'08) / 11th Europ. Conf. on Principles and Practice of Knowledge Discovery in Databases (PKDD'08), 2008