A staff member of Changzhi commission of economy and information technology demonstrates a big data application to visitors in Changzhi Big Data Center, Shanxi province, Dec 21. The center covering a floorage of 18,991 square meters was founded on Dec 20 with more than 100 industrial companies settled. Based on cloud and computing technologies and services in industrial, financial, tourism, medical and other sectors, the center provides cloud services for some 20 government related departments. [Photo/Shanxi Daily]