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Hybrid model for evaluation of DMUs with principles of strong and weak disposability in the presence of grey undesirable factors
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Jafar Pourmahmoud   , Mahdi Eini , Davood Darvishi Salokolaei , Saeid Mehrabian |
| Azarbaijan Shahid Madani University, Department of Applied Mathematics, , pourmahmoud@azaruniv.ac.ir |
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Abstract: (247 Views) |
In the evaluation of decision making units with classical models of data envelopment analysis, it is assumed that the factors are deterministic. In some decision-making problems, the amount of inputs or outputs of the units is not exactly known and it is a three-parameter interval in grey form. In this case, it is recommended to choose the factors from their center of gravity. In the classic models of data envelopment analysis, all factors are also considered desirable, but in real problems there are undesirable factors too which cannot be used to evaluate problems with undesirable inputs and undesirable outputs. In this paper, a model is presented for calculating the efficiency of decision making units in the presence of the center of gravity of undesirable three-parameter interval grey undesirable factors based on the combination of strong and weak disposability principles. To this end, the proposed method is discussed with a practical example.
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| Keywords: Data Envelopment Analysis, Center of gravity, Efficiency, Strong and weak disposability. |
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Full-Text [PDF 483 kb]
(580 Downloads)
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Type of Study: Original |
Subject:
Mathematical Modeling and Applications of OR
Received: 2023/10/21 | Accepted: 2023/12/22 | Published: 2023/12/31
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