Department of Computer Science;
China University of Petroleum;
Beijing 102249;
China;
School of Information Technology and Electrical Engineering;
The University of Queensland Brisbane;
QLD 4072;
Australia;
School of Computer Science and Technology;
Soochow University;
Suzhou 215006;
China;
Commonwealth Scientific and Industrial Research Organisation;
Kenmore;
QLD 4069;
Australia;
Key Laboratory of Data Engineering and Knowledge Engineering;
Renmin University of China;
Beijing 100080;
China;