In this article, David Edelman explores a few AI tools that can be used fon an AI strategy to scale segment-of-one marketing. Champion versus challenger has been the basis for finding lift and proving marketing value for decades. But we are way past the slower, high-cost operations needed to test direct mail pieces or even direct response TV.  To find the right offer, message, or call center interaction on an increasingly personalized basis for digital channels requires multi-variate testing on…