1. DUT-RU International School of Information and Software Engineering and Key Laboratory for Ubiquitous Network and Service Software of Liaoning Province, Dalian University of Technology, China
2. DUT-RU International School of Information and Software Engineering, Dalian University of Technology, China
3. School of Computer Science and Engineering, Nanyang Technological University, Singapore
4. School of Software Technology, Dalian University of Technology, China
5. School of Mathematical Sciences, University of Science and Technology of China, Chia