作者机构:[1]Institute of Computing Technology, Chinese Academy of Sciences, Beijing 100190, China, [2]University of Chinese Academy of Sciences, Beijing 100049, China
相关基金:This paper is supported in part by the Strategic Priority Research Program of the Chinese Academy of Sciences under Grant No. XDA06010403, the International Science and Technology Cooperation Program of China under Grant No. 2013DFA10690, the National Natural Science Foundation of China under Grant No. 61003293, and the Beijing Natural Science Foundation under Grant No. 4112054.