Topics include, but are not limited to:

• evolutionary models for collective systems, social networks dynamics

• semantic proximity measures in social networks, weak semantics models

• collective knowledge discovery, emergent collective behavior

• link prediction, citation networks, bibliometrics in collective environments

• sentiment analysis, social network analysis, wisdom of crowds

• collaborative social tagging, trust, reputation and recommendation systems

• multimodal media search, semantics of social multimedia

• massive learning environments, peer assessment, teachers self-evaluation

• ubiquitous and mobile collective systems, massive personal sensor networks integration