Hideaki Ishii Tokyo Institute of Technology, Japan (ishii [at] dis.titech.ac.jp)
Li Qiu Hong Kong University of Science and Technology, China (eeqiu [at] ust.hk)
Girish Nair University of Melbourne, Australia (gnair [at] unimelb.edu.au)
Shun-ichi Azuma Kyoto University, Japan (sazuma [at] i.kyoto-u.ac.jp)