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 Facial recognition technology is being used by companies such as Tesco, Google and Facebook, and it has huge potential for security.
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 It may be too late to opt out… facial recognition algorithms may be neutral themselves, the databases they are tied to are anything but.
' Artificial intelligence (AI) The Observer Facial recognition: is the technology taking away your identity?
 Facial recognition technology is being used by companies such as Tesco, Google and Facebook, and it has huge potential for security.
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 "We closely approach human performance," says Yaniv Taigman, a member of its AI team.
 Since the ability to recognise faces has long been a benchmark for artificial intelligence, developments such as Facebook's "DeepFace" technology (yes, that's what it called it) raise big questions about the power of today's facial recognition tools and what these mean for the future.
 Facebook is not the only tech company interested in facial recognition.