Delegates attend the 2nd AI for Good Global Summit in Geneva, Switzerland, on May 15, 2018. The 2nd AI for Good Global Summit, which kicked off in Geneva Tuesday, is looking for concrete artificial intelligence (AI) projects that can accelerate progress towards the UN Sustainable Development Goals (SDGs), the head of the International Telecommunication Union (ITU) Zhao Houlin announced at the opening ceremony. (Xinhua/Xu Jinquan)