Google is building AI to make humans smile

A team at Google is using everyday humans to shape the decisions that machines make, no coding required. Researchers built a web app that showed people Google's previously reported AI-generated drawings of things like cats and rhinos, and recorded their reactions through a webcam. When people smiled after seeing the doodle, it registered as a positive signal. When they frowned or looked confused, it registered as a negative reaction. After gathering all the drawings that people reacted positively to, the Googlers retrained the AI system with a focus on the "good" examples. The results were better drawings of cats and dogs.