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Sustainable supplier selection by a new possibilistic hierarchical model in the context of Z-information

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In recent years, supplier selection has been significantly important with respect to dimensions and criteria of sustainability. Organizations need to try to choose their suppliers based on how well their performances are in each of the economic, social, and environmental criteria. On the other hand, since the methods of supplier selection depend on the experts’ opinions, which have the potential of uncertainty and ambiguity, using Fuzzy sets to evaluate the criteria can be useful. Apart from considering experts’ opinions on a fuzzy basis, probabilities are considered in experts’ opinions via Z-numbers in order to increase the reliability of the data and the results. In this paper, after reviewing the literature, identifying the sustainability criteria, and step-by-step explaining the presented method, a numerical example is studied for more clarification. Moreover, the results of the conventional fuzzy sets are obtained and have been compared with those considering the probabilities (Z-number) leading to the conclusion that applying the experts’ opinions will be effective in ranking the suppliers.

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Correspondence to Seyed Farid Ghannadpour.

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See Tables 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30.

Table 19 Linguistic terms determined by DM2
Table 20 Linguistic terms determined by DM3
Table 21 Linguistic terms determined by DM4
Table 22 The converted Z-numbers substituted with corresponding linguistic terms for DM2
Table 23 The converted Z-numbers substituted with corresponding linguistic terms for DM3
Table 24 The converted Z-numbers substituted with corresponding linguistic terms for DM4
Table 25 The obtained performance criteria and enabler weights for 10 suppliers by DM2
Table 26 The obtained performance criteria and enabler weights for 10 suppliers by DM3
Table 27 The obtained performance criteria and enabler weights for 10 suppliers by DM4
Table 28 The obtained performance criteria weights for 10 DM2
Table 29 The obtained performance criteria weights for 10 DM3
Table 30 The obtained performance criteria weights for 10 DM4

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Hoseini, A.R., Ghannadpour, S.F. & Ghamari, R. Sustainable supplier selection by a new possibilistic hierarchical model in the context of Z-information. J Ambient Intell Human Comput (2020). https://doi.org/10.1007/s12652-020-01751-3

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  • Sustainability
  • Supplier Selection
  • Fuzzy sets
  • Z-number