Xiang Li received the B.Sci. degree from the Jilin University, Changchun, China, in 2004, and the Ph.D. degree in Operations Research and Control from Tsinghua University, Beijing, China, in 2008. He is currently a professor with School of Economics and Management Science, Beijing University of Chemical Technology. His research interests include fuzzy measure theory, fuzzy programming, fuzzy logic, and their applications. He has authored one book and more than 50 articles on international journals including Transportation Research Part B, Transportation Research Part C, Information Sciences, European Journal of Operational Research, IEEE Transactions on Intelligent Transportation Systems, IEEE Transactions on Fuzzy Systems, IEEE Transactions on Systems, Man, and Cybernetics-Part A, which has been cited more than 500 times on Web of Science, and 1000 times on Google Scholar. He served as the Associate Editor of Information Sciences, Editorial Board Members of International Journal of General Systems and so on. Xiaofeng Xu received his Master degree (2007) and Ph.D. degree (2009) in Management Science and Engineering from Harbin Engineering University, Harbin, China. He is currently an associate professor with School of Economics and Management Science, China University of Petroleum. His research interests include system engineering, uncertain decision, and their applications. He has more than 10 articles on international journals.