Using TensorFlow, an open source machine learning platform, Google’s ShadowPlay enables visitors to transform shadow figures from hand gestures into digital animations at the first China International Import Expo (CIIE) in Shanghai, east China, Nov. 7 2018. The installation, built using TensorFlow, uses AI to recognize a person’s hand gestures and then magically transform the shadow figure into digital animations representing the 12 animals of the Chinese zodiac and in an interactive show.