1. Chongqing University of Posts and Telecommunications,Chongqing Key Laboratory of Computer Science and Technology,ChongQing,China
2. ChongQing College of Electronic Engineering,Department of Artificial intelligence and Big data,ChongQing,China
3. ChongQing College of Electronic Engineering,Department of General education and International Studies,ChongQing,China
4. Chongqing University of Posts and Telecommunications,Department of Software Engineering,ChongQing,China