1. Department of Computer Science and Technology, Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, China, Qatar Computing Research Institute, Hamad Bin Khalifa University and Beijing HaiZhi XingTu Technology Co., Ltd.
2. Qatar Computing Research Institute, Hamad Bin Khalifa University
3. Department of Computer Science and Technology, Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, China and Beijing HaiZhi XingTu Technology Co., Ltd.