Uber

With prices on the rise, an app analyzes user data to deliver cash back on retail purchases. Upside, a startup based in Washington, D.C., works with gas stations, grocery stores, and restaurants to offer personalized discounts to consumers.

In March 2018, one of Uber’s self-driving cars became the first autonomous vehicle reported to have killed a pedestrian. A new report by U.S. authorities suggests that the accident occurred because the car’s software was programmed to ignore jaywalkers.

Neuroevolution, which combines neural networks with ideas drawn from Darwin, is gaining momentum. Its advocates claim that they can achieve faster, better results by generating a succession of new models, each slightly different than its predecessors, rather than relying on a purpose-built model.