Staff workers are seen at a big data demonstration center of Guizhou Shuanglong Airport Economic Zone in southwest China's Guizhou Province, May 16, 2017. The 2017 China international big data industry expo will be held in Guiyang at the end of May. (Xinhua/Ou Dongqu)
A staff worker logs in a business big data website in southwest China's Guizhou Province, May 16, 2017. The 2017 China international big data industry expo will be held in Guiyang at the end of May. (Xinhua/Ou Dongqu)
A staff worker views an air route model at a big data demonstration center of Guizhou Shuanglong Airport Economic Zone in southwest China's Guizhou Province, May 16, 2017. The 2017 China international big data industry expo will be held in Guiyang at the end of May. (Xinhua/Ou Dongqu)
A staff worker experiences a pair of VR glasses at a big data demonstration center of Guizhou Shuanglong Airport Economic Zone in southwest China's Guizhou Province, May 16, 2017. The 2017 China international big data industry expo will be held in Guiyang at the end of May. (Xinhua/Ou Dongqu)
A staff worker is seen at a logistics digital hub in Guiyang, southwest China's Guizhou Province, May 16, 2017. The 2017 China international big data industry expo will be held in Guiyang at the end of May. (Xinhua/Ou Dongqu)
A staff worker views models at a big data demonstration center of Guizhou Shuanglong Airport Economic Zone in southwest China's Guizhou Province, May 16, 2017. The 2017 China international big data industry expo will be held in Guiyang at the end of May. (Xinhua/Ou Dongqu)
