
268 • Big Data Analytics
e partial roll-out is also a way to control risk. A counterproductive
strategy need not bring down our business, and in fact it may even become
a productive strategy if tweaked and adjusted by motivated sta members.
We must measure those tweaks and adjustments along with their results.
ey form an experiment and shine light into behaviors that consumers
may not even know they have.
SPECIOUS CORRELATIONS AND OVERFITTING THE DATA
Dr. David Leinweber, who is now the head of the Center for Innovative
Financial Technology at Lawrence Berkeley National Laboratory in
Berkeley, California, wrote an unpublished paper in 1995 ...