This author has not been identified. Look up 'Kai-Fu Yang' in GoogleThis author has not been identified. Look up 'Cheng Cheng' in GoogleThis author has not been identified. Look up 'Shixuan Zhao 0001' in GoogleThis author has not been identified. Look up 'Hong-Mei Yan' in GoogleThis author has not been identified. Look up 'Xian-Shi Zhang' in GoogleThis author has not been identified. Look up 'Yong-Jie Li' in Google