Otay, I.Bulut, B.Barutbaş, K.Arat, A.E.Tekin, E.Gürz, Z.Ş.2024-07-182024-07-18202397830313977692367-3370https://doi.org/10.1007/978-3-031-39777-6_15https://hdl.handle.net/11411/6236Intelligent and Fuzzy Systems - Intelligence and Sustainable Future Proceedings of the INFUS 2023 Conference -- 22 August 2023 through 24 August 2023 -- -- 299549Especially after the COVID-19 pandemics where market dynamics have changed dramatically, supplier selection has been one of the crucial subjects for almost every industry. After the pandemics, the healthcare industry has played a major role and gained even more importance in all over the world; therefore, selecting the best appropriate supplier has become more critical than ever. In this paper, supplier selection and evaluation problem is analyzed for a specific area of the healthcare industry, i.e. laboratory (lab.) equipments including test tubes and sample containers. Considering the vagueness and imprecise information in the decision-making environment, the problem is handled by considering five main criteria and 20 sub-criteria under fuzzy environment. In the study, a relatively recent extension of the fuzzy sets called as Pythagorean Fuzzy Sets (PFS), which provides more flexibility to the decision makers with membership and non-membership degrees, are utilized. This paper aims to contribute to the literature by proposing a novel fuzzy methodology integrating Analytic Hierarchy Process (AHP) and Combinative Distance-based Assessment (CODAS) method based on interval-valued PFS. Finally, sensitivity analysis is constructed in the paper. © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.eninfo:eu-repo/semantics/closedAccessHealthcareInterval- Valued Pythagorean Fuzzy SetsPythagorean Fuzzy AhpPythagorean Fuzzy CodasSupplier SelectionDecision MakingFuzzy SetsHealth CareHierarchical SystemsSensitivity AnalysisDecision-Making FrameworksDistance-BasedFuzzy Analytic HierarchyHealthcareHealthcare İndustryInterval- Valued Pythagorean Fuzzy SetInterval-ValuedPythagorean Fuzzy Analytic Hierarchy ProcessPythagorean Fuzzy Combinative Distance-Based AssessmentSupplier SelectionAnalytic Hierarchy ProcessConference Object2-s2.0-8517273893610.1007/978-3-031-39777-6_15132Q4124759 LNNS