This author has not been identified. Look up 'Yi Gao' in GoogleThis author has not been identified. Look up 'Wei Dong' in GoogleThis author has not been identified. Look up 'Chun Chen' in GoogleThis author has not been identified. Look up 'Xiaoyu Zhang' in GoogleThis author has not been identified. Look up 'Jiajun Bu' in GoogleThis author has not been identified. Look up 'Xue Liu' in Google