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Feiyu Xu, vice president of Lenovo Group and head of AI Lab, Lenovo Research, delivers a speech at the San Francisco AI Summit in San Francisco, the United States, Sept. 25, 2019. The two-day 2019 AI Summit San Francisco ended here Thursday as world-leading companies and industrial leaders shared their visions on the transformational impact of artificial intelligence (AI) on many industries. The San Francisco AI Summit drew over 6,000 attendees and more than 200 exhibitors from over 120 countries and regions in the world. (Xinhua/Wu Xiaoling)
