The Friendship Paradox

About 20 years ago, a sociologist named Scott Feld discovered an interesting phenomenon where on the average, people have less friends than their friends do.  However, most people believe they have more friends than their friends do.  This is the paradox.  The...

How Much Data Do I Need For Predictive Analytics?

Before beginning any predictive analytics project, its essential to investigate the breadth and depth of data available. However, at what point is it acceptable to say you have enough data to start? The politically correct answer to this question is that it depends....