1. School of Computer Science and Technology, Changchun University of Science and Technology, No. 7089, Weixing Road, Changchun 130022, China
2. Department of Electrical Engineering, College of Engineering, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Kingdom of Saudi Arabia
3. NetMile Inc., 2-4 Kojimachi, Chiyoda-ku, Tokyo 102-0083, Japan