BBVA Innova challenge Big Data https://www.centrodeinnovacionbbva.com
BBVA contest. Credit card transactions stats in Barcelona and Madrid between Nov-2012 and Apr-2013
Cards cube: Returns statistical information which dimensions are category, gender and age.
Predicted field "Avg. Sales/Month" is the average sales amount in a location (Seller Zipcode) and month, by gender, age range and commercial category.