作者机构:[1]School of Computer Science and Technology, Heilongjiang University, Harbin 150080, China, [2]Key Laboratory of Database and Parallel Computing of Heilongjiang Province, Harbin 150080, China
相关基金:Supported by the National Natural Science Foundation of China (Nos. 61100048, 61033015, and 60803015), Programs Foundation of Ministry of Education of China for New Century Excellent Talents in University (No. NCET-11-0955), the Natural Science Foundation of Heilongjiang Province (No. F201038), Programs Foundation of Heilongjiang Educational Committee for New Century Excellent Talents in University (No. 1252-NCET-011), Program for Group of Science and Technology Innovation of Heilongjiang Educational Committee (No. 2011PYTD002), the Science and Technology Research of Heilongjiang Educational Committee (Nos. 12511395 and 11551343), the Science and Technology Innovation Research Project of Harbin for Young Scholar (Nos. 2008RFQXG107, 2009RFQX080, and 2011RFQXG028)