Better, faster, more customer friendly. This week, a slew of apps and e-commerce boosters were announced, each relying on big data to home in on the sweet spot that converts browsing to buying. You sipped a crisp, white burgundy with your entree at a local bistro last night. This afternoon, you’d like to get another bottle to have at home. The problem: you can’t remember the name of the producer, much less the vintage.