To foster integration of people within the community, at the end of the workshop day we plan to have a brainstorming session where people will discuss about what they foresee as interesting open problems/questions worth of being investigated. The organizers will foster the discussion by proposing initial hints on open questions that should be interesting for participants. The questions will be initially asked to a panel formed by the presenters of the papers and keynote speakers. Answers from the panel will be used to initiate the discussion among participants. The theme of the brainstorming session for this year will be “Experts versus the crowd: is big data enough?”. Further details coming soon.