Towards personal, social, and urban awareness / Bin Guo, Yunji Liang, Zhu Wang, Zhiwen Yu, Daqing Zhang, Xingshe Zhou -- Activity recognition using ubiquitous sensors: an overview / Yunji Liang, Xingshe Zhou, Bin Guo, Zhiwen Yu -- Opportunistic detection methods for emotion-aware smartphone applications / Igor Bisio, Alessandro Delfino, Fabio Lavagetto, Mario Marchese -- Service discovery with personal awareness in smart environments / Kobkaew Opasjumruskit, Jesús Expósito, Birgitta König-Ries, Andreas Nauerz, Martin Welsch -- Architecture pattern for context-aware smart environments / Viktoriya Degeler, Alexander Lazovik -- Design aspects and context awareness in pervasive games / Vlasios Kasapakis, Damianos Gavalas -- Community detection and profiling in location-based social networks / Zhu Wang, Xingshe Zhou, Daqing Zhang, Bin Guo, Zhiwen Yu -- Social cars: sensing, gathering, sharing, and conveying social cues to road users / Ronald Schroeter, Alessandro Soro, Andry Rakotonirainy -- Challenges for personal data stream management in smart buildings / Dennis Geesen, H. Jürgen Appelrath, Marco Grawunder, Daniela Nicklas -- News recommendation for China Sina Weibo microblog service based on user social behaviors / Zuo Yuchu, You Fang, Wang Jianmin, Zhou Zhengle -- Human mobility patterns / Ali Diab, Andreas Mitschele-Thiel -- Spatial relations in contextual information for mobile emergency messaging / Alaa Almagrabi, Seng W. Loke, Torab Torabi -- Understanding urban dynamics from taxi GPS traces / Lin Sun, Chao Chen, Daqing Zhang -- User-centric social interaction for digital cities / Kåre Synnes, Matthias Kranz, Juwel Rana, Olov Schelén -- Research challenges for personal and collective awareness / Daniele Riboni, Rim Helaoui.