中文摘要：

E-mail： dingxiaoou@stu.hit.edu.cn;Xiaoou Ding is currently a PhD student in School of Computer Science and Technology. Harbin Institute of Technology. She received the bachelor degree from Harbin Institute of Technology in 2015. Her research interests include data quality, data repairing and cleaning, and big data management. E-mail：wangzh@hit.edu. cn;Hongzhi Wang is doctoral supervisor at a professor and Harbin Institute of Technology. He was awarded Microsoft fellowship, Chinese excellent database engineer and IBM PhD fellowship. His research interests include big data management, data quality, graph data management, and web data mangement. E-mail： gaoyitong@ 163.com;Yitong Gao received the master degree from Harbin Institute of Technology in 2016. Her research interests include big data management, data quality, and distributed algorithms. E-mail： lijzh@hit.edu.cn;Jianzhong Li is a professor and doctoral supervisor at Harbin Institute of Technology. He is a senior member of CCF. His research interests include database, parallel computing, wireless sensor networks, etc. E-mail： honggao@hit.edu. cn.Hong Gao is a professor and doctoral supervisor at Institute of Technology. She is a senior member of CCF. Her research interests include database, parallel computing, wireless sensor networks, etc.