作者机构:[1]School of Computer Science and Engineering, Southeast University, Nanjing 210096, China, [2]State Key Laboratory for Novel Software Technology, Nanjing University, Nanjing 210093, China, [3]Department of Computer Science and Technology, Nanjing University, Nanjing 210093, China
相关基金:Supported by the National High-Yech Research and Development (863) Program of China (No. 2009AA01Z 147), the National Natural Science Foundation of China (Nos. 61003156 and 90818027), and the National Key Basic Research and Development (973) Program of China (No. 2009CB320703)