AI writes Yelp reviews that pass for the real thing

On any given day, hordes of people consult online reviews to help them pick out where to eat, what to watch, and products to buy. We trust that these reviews are reliable because they come from everyday folk just like us. But, what if the feedback blurbs on sites ranging from Amazon to iTunes could be faked -- not just by nefarious humans, but by AI? That's what researchers from University of Chicago tried to do, with surprising results. Not only did the Yelp restaurant reviews written by their neural network manage to pass for the real thing, but people even found the posts to be useful. As part of their attack method, the researchers utilized a deep learning program known as a recurrent neural network (RNN).