What is Population Imbalance

In very large data sets, events of interest occur relatively infrequently.

Advanced Analytics for Big Data

Stephen Kaisler (SHK and Associates, USA & George Washington University, USA), J. Alberto Espinosa (Kogod School of Business, American University, USA), Frank Armour (Kogod School of Business, American University, USA), and William Money (School of Business Administration, George Washington University, USA)