1. Information Engineering College, Hangzhou Dianzi University, No.1 Hangdian Road, Qingshanhu Street, Lin’an District, Hangzhou 310018, China
2. Department of Business Administration, Seoul School of Integrated Sciences and Technologies, 46, Ewhayeodae 2-gil, Seodaemun-gu, Seoul 03767, Republic of Korea
3. School of Tourism and Geography Science, Qingdao University, 308 Ningxia Road, Qingdao 266071, China