1. International Business School, Hainan University, Haikou, P.R. China
2. Faculty of Economics and Management, Dalian University of Technology, Dalian, P.R. China
3. Department of Civil and Environmental Engineering, University of MD, College Park, Maryland, USA
4. Institute for Theoretical and Applied Informatics, Polish Academy of Sciences, Gliwice, Poland
5. Department of Construction Engineering, ChaoYang University of Technology, Taichung City, Taiwan