Fred Benenson got an email from Facebook recently, informing him that it had detected his face in a number of photos and asking if he would like to be tagged in them. When he clicked through the link, he was amused to find eleven black and white headshots of his mother from her college days. The social network’s DeepFace algorithms detect and identify faces using a neural network with more than 120 million parameters, an ever-improving machine learning process the company says is closely approaching human-level performance. Facebook says DeepFace can determine if two photographs are of the same person 97.25 percent of the time, but there are still plenty of images that can trip up their most powerful machines, especially when it’s a...
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