作者机构:[1]College of Computer Science, Zhejiang University, Hangzhou 310027, China, [2]IBM Research - China (CRL), Beijing 100094, China
相关基金:Supported by the National Natural Science Foundation of China (No. 61070156), Special Youth Research and Innovation Programs (Nos. 2009QNA5025 and 2010QNA5044) and IBM-ZJU Joint Research Projects