Issue: 2023/Vol.33/No.3, Pages 89-104
TEACHING ASSISTANT SELECTION IN THAILAND BY USING AN EXTENDED VIKOR BASED ON PIECEWISE LINEAR APPROXIMATION OF FUZZY NUMBERS
Akan Narabin
, Phairoj Samutrak
Cite as: A. Narabin, P. Samutrak. Teaching assistant selection in Thailand by using an extended VIKOR based on piecewise linear approximation of fuzzy numbers. Operations Research and Decisions 2023: 33(3), 89-104. DOI 10.37190/ord230306
Abstract
Because of the COVID-19 situation, selection for a teaching assistant position to get a TA scholarship in a university in Thailand needs to be performed online by the formed committee. Due to the online process and the limited number of scholarships offered by the university, beyond the face-to-face interview, multiple-criteria decision analysis can help to select a proper student. In this study, we use the extended VIKOR method with fuzzy numbers to help committees to select the students from the applicants. The criteria and the weights of the criteria are provided with the help of committees. Both trapezoidal and triangular linguistic variables are used to find the solution and to observe the range of the possible result. The different weights supporting the strategy of maximum group utility are varied to detect the potential alternatives. The ranking results are also compared with the one obtained from the TODIM approach to illustrate the appropriate alternative.
Keywords: multi-criteria decision-making problem, extended VIKOR method, teaching assistant in university, Thailand
Received: 4 August 2022 Accepted: 1 June 2023
Published online: 21 September 2023