This author has not been identified. Look up 'Junlong Wu' in GoogleThis author has not been identified. Look up 'Zhenghua Guo' in GoogleThis author has not been identified. Look up 'Xianfeng Chen' in GoogleThis author has not been identified. Look up 'Shuai Ma' in GoogleThis author has not been identified. Look up 'Bing Xu' in GoogleThis author has not been identified. Look up 'Ping Yang' in Google