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Article

An Innovative Grey Approach for Group Multi-Criteria Decision Analysis Based on the Median of Ratings by Using Python

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Technical Faculty in Bor, University of Belgrade, Vojske Jugoslavije 12, 19210 Bor, Serbia
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Faculty of Applied Management, Economics and Finance, University Business Academy in Novi Sad, Jevrejska 24, 11000 Belgrade, Serbia
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Faculty of Sciences and Mathematics, University of Niš, Višegradska 33, 18000 Niš, Serbia
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Mathematics and Science Division, Gallup Campus, University of New Mexico, 705 Gurley Ave., Gallup, NM 87301, USA
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Department of Computer Sciences, University of Novi Pazar, Dimitrija Tucovića bb, 36300 Novi Pazar, Serbia
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Department of International Trade and Logistics, Faculty of Economics and Administrative Sciences, Sivas Cumhuriyet University, Sivas 58140, Turkey
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Division of Mathematics and Informatics, Department of Economics, National and Kapodistrian University of Athens, Panepistimiopolis, 15784 Ilissia, Greece
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Author to whom correspondence should be addressed.
Academic Editors: Goran Ćirović and Dragan Pamučar
Axioms 2021, 10(2), 124; https://doi.org/10.3390/axioms10020124
Received: 24 May 2021 / Revised: 7 June 2021 / Accepted: 16 June 2021 / Published: 19 June 2021
(This article belongs to the Special Issue Multiple-Criteria Decision Making)
Some decision-making problems, i.e., multi-criteria decision analysis (MCDA) problems, require taking into account the attitudes of a large number of decision-makers and/or respondents. Therefore, an approach to the transformation of crisp ratings, collected from respondents, in grey interval numbers form based on the median of collected scores, i.e., ratings, is considered in this article. In this way, the simplicity of collecting respondents’ attitudes using crisp values, i.e., by applying some form of Likert scale, is combined with the advantages that can be achieved by using grey interval numbers. In this way, a grey extension of MCDA methods is obtained. The application of the proposed approach was considered in the example of evaluating the websites of tourism organizations by using several MCDA methods. Additionally, an analysis of the application of the proposed approach in the case of a large number of respondents, done in Python, is presented. The advantages of the proposed method, as well as its possible limitations, are summarized. View Full-Text
Keywords: MCDA; grey interval numbers; group decision-making; Python MCDA; grey interval numbers; group decision-making; Python
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MDPI and ACS Style

Stanujkić, D.; Karabašević, D.; Popović, G.; Stanimirović, P.S.; Smarandache, F.; Saračević, M.; Ulutaş, A.; Katsikis, V.N. An Innovative Grey Approach for Group Multi-Criteria Decision Analysis Based on the Median of Ratings by Using Python. Axioms 2021, 10, 124. https://doi.org/10.3390/axioms10020124

AMA Style

Stanujkić D, Karabašević D, Popović G, Stanimirović PS, Smarandache F, Saračević M, Ulutaş A, Katsikis VN. An Innovative Grey Approach for Group Multi-Criteria Decision Analysis Based on the Median of Ratings by Using Python. Axioms. 2021; 10(2):124. https://doi.org/10.3390/axioms10020124

Chicago/Turabian Style

Stanujkić, Dragiša, Darjan Karabašević, Gabrijela Popović, Predrag S. Stanimirović, Florentin Smarandache, Muzafer Saračević, Alptekin Ulutaş, and Vasilios N. Katsikis 2021. "An Innovative Grey Approach for Group Multi-Criteria Decision Analysis Based on the Median of Ratings by Using Python" Axioms 10, no. 2: 124. https://doi.org/10.3390/axioms10020124

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