In this Friday, July 14, 2017, photo, computer scientist Andrew Ng, right, works with others at his office in Palo Alto, Calif. Ng, one of the world's most renowned researchers in machine learning and artificial intelligence, is facing a dilemma: there aren't enough experts trained to train the machines. So when he isn't pushing into the frontier of AI himself, Ng is building new ways to help educate the next generation of AI specialists. (AP Photo/Eric Risberg)
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