Affiliation: | 1.College of Hotel & Tourism Management,Kyung Hee University,Seoul,South Korea;2.Faculty of Computer Science,Free University of Bozen-Bolzano,Bolzano,Italy;3.College of Hospitality and Tourism Leadership,University of South Florida Sarasota-Manatee (USFSM),Sarasota,USA;4.Hospitality Services Department, Rosen College of Hospitality Management,University of Central Florida,Orlando,USA |