作者机构:[1]School of Information Science and Engineering, Central South University, Changsha 410083, China, [2]Department of Computer Science and Technology, Changsha University, Changsha 410003, China
相关基金:Projects(61173169, 61103203, 70921001) supported by the National Natural Science Foundation of China; Project(NCET-10-0798) supported by Program for New Century Excellent Talents in University of China