1. Japan Advanced Institute of Science and Technology,Ricoh Software Research Center (Beijing) Co., Ltd.,School of Information Science,Nomi,Ishikawa,Japan
2. Japan Advanced Institute of Science and Technology,School of Information Science,Nomi,Ishikawa,Japan
3. Capital Medical University,Xuanwu Hospital,Beijing,China
4. Beijing Normal University,School of Mathematical Science,Beijing,China
5. Ricoh Software Research Center (Beijing) Co., Ltd.,Beijing,China