A visitor interacts with an intelligent robot at the Light of Internet Exposition of the fourth World Internet Conference in Wuzhen, Tongxiang City of east China's Zhejiang Province, Dec. 4, 2017. The expo, attracting 411 renowned internet enterprises from home and abroad, showcases the latest internet technologies and applications from around the world, highlighting artificial intelligence, cloud computing, big data and other areas. (Photo: China News Service/Du Yang)
