It was called “the Optimizer,” and, strategists for President Obama say it is how he beat a better-financed Republican opposition in the advertising war.
Culling never-before-used data about viewing habits, and combining it with more personal information about the voters the campaign was trying to reach and persuade than was ever before available, the system allowed Mr. Obama’s team to direct advertising with a previously unheard-of level of efficiency, strategists from both sides agree. [cont.]
Jim Rutenberg, New York Times