Shi Gege, a year in 2016 at the University of Salzburg, Austria, and participated in the AGIT and Gi_forum International Academic Exchange Conference held in Salzburg, Austria, from July 4, 2017 to 7th. The main content of Gi_forum 2017 is to integrate various areas of perspective, and to explore and address various issues in the context of large data, sensors, real-time data streams, geo-data infrastructures and cloud computing.