Abstract

In the first place, I would like to express my deepest and sincere gratitude to my supervisor Professor Leon Rothkrantz. His wide knowledge and great foresight have provided a good basis for the present thesis. During my study in Man-Machine Interaction group at Delft University of Technology, I have been deep touched by his professional dedication. And his encouraging, understanding and personal guidance have been great help to me. Also I want to give my heartfelt thanks to Professor Charles van der Mast, for sharing and offering many of design ideas for my thesis work. Next I want to show my great appreciation to: Zhenke Yang, Siska Fitrianie, Rick, Koer, Nike, Joost and other group members in crowd control group for their enthusiastic and friendly help. I also want to thank the stand-up comedians playing the scenes in the train. Last but not least, I like to thank my family and friends who have been supporting me. I will never forget the days when we walked together. I want to honor you all sincerely.