Institution: | 1. Department of Computer Science, Shizuoka University, Hamamatsu 432-8011, Japan;2. Research Center for Pure and Applied Mathematics, Graduate School of Information Sciences, Tohoku University, Sendai 980-8579, Japan;1. School of Mathematics, Hefei University of Technology, Hefei, 230601, Anhui, People''s Republic of China;2. Intelligent Interconnected systems Laboratory of Anhui province, Hefei, 230009, Anhui, People''s Republic of China |