1. Beijing Key Laboratory of Cloud Computing Key Technology and Application, Beijing Computing Center, Beijing Academy of Science and Technology, Beijing 100094, China.
2. Department of Systems Innovation Engineering, Faculty of Science and Engineering, Iwate University, Morioka, Iwate 020-8551, Japan.
3. Department of Biomedical Engineering, Faculty of Life and Medical Sciences, Doshisha University, Kyoto 610-0394, Japan.