Browsing by Author "Tepe,S."

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Citation Count: 2
A fuzzy based risk assessment model with a real case study
(Springer Verlag, 2020) Aslantaş,S.; Tepe,S.; Mertoğlu,B.
Occupational Health and Safety (OHS) is the definition given to the works aimed at eliminating any long- and short-term health problems that may occur due to the work is done. The risk assessment in OHS is defined as work carried out with the aim of determining the hazards that may exist in the workplace and the measures to be taken. Several quantitative and qualitative risk assessment tools exist in the literature to analyze the characteristics of different sectors’ causes of accidents and workplace conditions. The fuzzy sets have been used for more effective rating in risk assessment. In this paper, Interval Valued Pythagorean Fuzzy Analytical Hierarchy Process (IV-PFAHP) method and Interval Valued Pythagorean Fuzzy TOPSIS (IV-PFTOPSIS) method have been suggested to deal with the risk assessment process with a real case study. The paper focuses on IV-PFAHP and IV-PFTOPSIS methods to handle uncertainty in the risk assessment process for health sector. The results revealed that the proposed approach produces reliable outcomes representing the vagueness of the decision-making process. © 2020, Springer Nature Switzerland AG.
Citation Count: 3
A multi criteria decision making methodology based on Pythagorean fuzzy sets for risk assessment in health sector
(Old City Publishing, 2020) Aslantaş,S.; Tepe,S.; Mertoglu,B.
The present paper focuses on the comparison of the Interval-Valued Pythagorean Fuzzy Technique for Order of Preference by Similarity to Ideal Solution (IVPFTOPSIS) and VlseKriterijumska Optimizcija I Kaompromisno Resenje (VIKOR) to resolve uncertainties in risk assessment (RA) in the health sector. The ranking of the different hospital units according to the RA can be similar to solving multiple criteria decision-making (MCDM) problems. In this paper, AHP-TOPSIS based approach was used during the MCDM RA methodology with IVPF sets. Then it was tested using the VIKOR method to validate the results obtained and the proposed model. Weights of risk parameters were calculated using the IVPFAHP method. The risk priority of each unit of the hospital was calculated using the IVPFTOPSIS and these results are crosschecked with VIKOR method; thus, both methods were compared while overcoming uncertainty and achieving optimal results in the RA process. Public places and dining areas were determined as the highest risk by both methods. Moreover, visualization centers, polyclinics, and laboratories were identified as other risky areas by TOPSIS and VIKOR. These units need to be taken seriously and systematically controlled. ©2020 Old City Publishing, Inc.