Increasing numbers of decisions about everyday life are made using algorithms. By algorithms we mean predictive models (decision rules) captured from historical data using data mining. Such models often decide prices we pay, select ads we see and news we read online, match job descriptions and...

One goal for massive open online courses is that the educational benefits they provide scale as a function of the number and diversity of learners interacting with the platforms, since an increasing amount of data is available about what interactions and content increase engagement and learning,...