BROADCASTS.com

This week we're looking at how powerful computers and massive data sets are changing the we study each other, scientifically and socially. We're joined by machine learning researcher Hanna Wallach, to talk about the definition of "big data," and social science research techniques that use data about individual people to model patterns in human behavior. And we'll speak to Christian Rudder, co-founder of OkCupid and author of the OkTrends blog, about his book "Dataclysm: Who We Are (When We Think No One's Looking)."