Evaluation of the effect of online reviews on hotel ratings and overall score in Fermatean environment

Article type: Research Article

Authors: Thao, Nguyen Xuan^{a; b} | Duong, Truong Thi Thuy^{c; *}

Affiliations: [a] Faculty of Information Technology – Vietnam National University of Agriculture, Vietnam | [b] International School, Vietnam National University, Hanoi, Vietnam | [c] Banking Academy, Ha Noi, Vietnam

Correspondence: [*] Corresponding author. Truong Thi Thuy Duong, Banking Academy, Ha Noi, Vietnam. E-mail: [email protected].

Abstract: Online reviews play a vital role in providing multidimensional information for tourists. It also has an effect on the ranking and overall score of hotels. As a powerful tool, the Fermatean fuzzy set efficiently models dealing with uncertain information. Considering that there is no study using the correlation coefficient in Fermatean fuzzy context to assess the effect of online reviews on ratings and overall score of hotels. Therefore, a correlation coefficient measure is put forward to determine the relationship between two Fermaten fuzzy numbers and then they are utilized to assess the impact of online reviews on ranking and overall rating of hotels. The paper first introduces the TOPSIS–based ranking model using a new distance under Fermatean set. Then, we construct a new correlation coefficient between two Fermatean fuzzy numbers to measure the effect of online reviews with ranking, overall score and score of hotels under given criteria. A case study on TripAdvisor.com is performed to illustrate the proposed operator and model.

Keywords: Hotels, decision making, picture fuzzy set, intuitionistic fuzzy set, Fermatean fuzzy set, correlation coefficient

DOI: 10.3233/JIFS-230667

Journal: Journal of Intelligent & Fuzzy Systems, vol. 45, no. 1, pp. 1067-1087, 2023