Extracting sentiment patterns from syntactic graphs / Alexander Pak, Patrick Paroubek -- Mobile context data mining: methods and applications / Enhong Chen, Tengfei Bao, Huanhuan Cao -- Clustering algorithms for tags / Yu Zong, Guandong Xu -- Grouping the similar among the disconnected bloggers / Nitin Agarwal, Debanjan Mahata -- Topic modeling for web community discovery / Kulwadee Somboonviwat -- Analyzing social networks to mine important friends / Carson K.-S. Leung, Irish J. M. Medina, Syed K. Tanbeer -- News document summarization driven by user-generated content / Luca Cagliero, Alessandro Fiori -- Method for modeling user semantics and its application to service navigation on the web / Munehiko Sasajima, Yoshinobu Kitamura, Riichiro Mizoguchi -- Tag cloud reorganization: finding groups of related tags on delicious / Alberto Pérez García-Plaza ... [et al.] -- Global community extraction in social network analysis / Xianchao Zhang ... [et al.] -- Local community extraction in social network analysis / Xianchao Zhang ... [et al.] -- Supporting social interaction in campus-scale environments by embracing mobile social networking / Zhiwen Yu ... [et al.] -- Recommending related microblogs / Lin Li, Huifan Xiao, Guandong Xu -- On group extraction and fusion for tag-based social recommendation / Guandong Xu, Yanhui Gu, Xun Yi.