• Why do we talk about big data today?

• Does big data make any difference?

Cases:

1. Robert M. Bond, Christopher J. Fariss, Jason J. Jones, AdamD. I. Kramer, Cameron Marlow, Jaime E. Settle & James H. Fowler published a paper titled A 61-million-person experiment in social influence and political mobilization on Nature. They find that “messages directlyinfluenced political self-expression, information seeking and realworldvoting behaviour of millions of people, and strong ties are instrumental for spreading both online and real-world behaviour in human social networks”.

However, there are many CRITICAL QUESTIONS FOR BIG DATA.