Jianye Xie (College of Computer Science and Technology, China University of Petroleum, Chunhua Hu, Lianyong Qi (College of Computer Science and Technology, China University of Petroleum, Fan Wang, Xiaolong Xu, Haolong Xiang, Xuyun Zhang, Shichao Pei, Amin Beheshti, Wanchun Dou, Xiaokang Zhou