1. School of Software, Dalian University of Technology, Dalian, China
2. Institute of Innovation, Science and Sustainability, Federation University Australia, Ballarat, VIC, Australia
3. School of Economics and Management, Dalian University of Technology, Dalian, China
4. Global Professional School, Federation University Australia, Ballarat, VIC, Australia
5. IBM Thomas J. Watson Research Center, Yorktown Heights, NY, USA