Department of Industrial Management, National Taiwan University of Science and Technology, Taipei 106, Taiwan, R,O,C. khchen@mail.ntust.edu.tw.|Department of Industrial Management, National Taiwan University of Science and Technology, Taipei 106, Taiwan, R,O,C. khchen@mail.ntust.edu.tw.|Department of Industrial Management, National Taiwan University of Science and Technology, Taipei 106, Taiwan, R,O,C. khchen@mail.ntust.edu.tw.|Department of Industrial Management, National Taiwan University of Science and Technology, Taipei 106, Taiwan, R,O,C. khchen@mail.ntust.edu.tw.|Department of Industrial Management, National Taiwan University of Science and Technology, Taipei 106, Taiwan, R,O,C. khchen@mail.ntust.edu.tw.|Department of Industrial Management, National Taiwan University of Science and Technology, Taipei 106, Taiwan, R,O,C. khchen@mail.ntust.edu.tw.|Department of Industrial Management, National Taiwan University of Science and Technology, Taipei 106, Taiwan, R,O,C. khchen@mail.ntust.edu.tw.|Department of Industrial Management, National Taiwan University of Science and Technology, Taipei 106, Taiwan, R,O,C. khchen@mail.ntust.edu.tw.|Department of Industrial Management, National Taiwan University of Science and Technology, Taipei 106, Taiwan, R,O,C. khchen@mail.ntust.edu.tw.|Department of Industrial Management, National Taiwan University of Science and Technology, Taipei 106, Taiwan, R,O,C. khchen@mail.ntust.edu.tw.