The learning machines
"Using massive amounts of data to recognize photos and speech, deep-learning computers are taking a big step towards true artificial intelligence. [...] Deep learning itself is a revival of an even older idea for computing: neural networks. These systems, loosely inspired by the densely interconnected neurons of the brain, mimic human learning by changing the strength of simulated neural connections on the basis of experience." Full news feature @ Nature News & Comment. A good companion reader is also Hyping Artificial Intelligence, yet again @ The New Yorker.