Photos of dogs tagged on Instagram helped Facebook create a more powerful artificial-intelligence algorithm. GETTY IMAGES/WIRED USING A SOCIAL network like Facebook is a two-way street, part-shrouded in shadow. The benefits of sharing banter and photos with friends and family—for free—are obvious and immediate. So are the financial rewards for Facebook; but you don’t get to see all of the company’s uses for your data. An artificial intelligence experiment of unprecedented scale disclosed by Facebook Wednesday offers a glimpse of one such use case. It shows how our social lives provide troves of valuable data for training machine-learning algorithms. It’s a resource that could help Facebook compete with Google, Amazon, and other tech giants with their own AI ambitions.via