Chinese Vice Premier Ma Kai delivers a speech at Global Big Data Era Guiyang Summit during the Guiyang International Big Data Expo 2015 in Guiyang, capital of southwest China's Guizhou Province, May 26, 2015. The Guiyang International Big Data Expo 2015 kicked off on Tuesday, attracting enterprises such as Alibaba, Foxconn, Huawei, etc. [Photo/Xinhua]