OK computer, who am I?

摘要

Now your phone knows you better than ever. The latest version of Apple's mobile operating system learns what your voice sounds like, and can identify you when you speak to Siri, ignoring other voices that try to butt in, Siri, the intelligent personal assistant, is not the only one who knows your voice. As learning software improves, voice-identification systems have started to creep into everyday life, from smartphones to police stations to bank call centres. More are probably on the way. In a paper published at the end of September, researchers at Google unveiled an artificial neural network that could verify the identity of a speaker saying "OK Google" with an error rate of 2 per cent.