Browsing by Author "Kilic,H.S."

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Citation Count: 6
An Integrated IVIF-DEMATEL and IVIF-TOPSIS Methodology for Hotel Information System Selection
(Springer, 2021) Erkal,G.; Kilic,H.S.; Kalender,Z.T.; Yalcin,A.S.; Tuzkaya,G.
The importance of information technologies in hotels has increased more in recent years due to the variety of required processes and the level of competitiveness in the sector. Depending on their contribution to creating value and increasing efficiency, hotel enterprises make important investments in information technologies. However, there are various criteria and alternatives in the selection process of the most suitable hotel information system. Moreover, the criteria affect each other in a fuzzy decision-making environment. Hence, two techniques are utilized synergistically in this study. IVIF-DEMATEL is initially performed to obtain the importance degrees of the criteria. Afterward, IVIF-TOPSIS is applied to reach the final rankings. An application is performed considering the case in the Turkish tourism sector, and the alternatives are ranked. © 2021, The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG.
Citation Count: 3
An integrated model with interval valued neutrosophic sets for the selection of lean and sustainable suppliers
(Springer Verlag, 2020) Yalcin,A.S.; Kilic,H.S.; Caglayan,N.
Suppliers have a very important role in the supply chain (SC) and accordingly the evaluation and selection of the supplier is quite significant. The aim of this study is to develop a hybrid methodology for the determination of the best supplier considering lean and sustainable factors. However, the selection of sustainable suppliers often includes indeterminate, inconsistent and vague information due to the subjective nature of individual decisions. Interval-valued neutrosophic sets (IVNSs) have a considerable capability to deal with indeterminacy and vagueness in the decision-making process. To this end, we integrated two strong decision making tools, ANP and TODIM, under interval valued neutrosophic sets environment. Firstly, IVN-ANP was employed to calculate the criteria weights. Further, obtained weights are utilized in the IVN-TODIM method as an input for the best sorting of the alternatives. A numerical example was introduced to illustrate the applicability and efficacy of the proposed approach. © 2020, Springer Nature Switzerland AG.
Citation Count: 15
Research and development project selection via IF-DEMATEL and IF-TOPSIS
(Springer Verlag, 2020) Yalcin,A.S.; Kilic,H.S.; Guler,E.
Research and development (R&D) project selection plays a fundamental role for the success of the enterprises. The evaluation of R&D projects in both production and service sectors is considered as a multi-criteria decision making (MCDM) problem since it contains several conflicting criteria. Based on the nature of the decision-making process, uncertainty and vagueness originate from the human judgments. In order to deal with this problem, intuitionistic fuzzy sets (IFSs) which are capable of overcoming ambiguity in decision-making process are handled. Firstly, IF-DEMATEL was utilized to illustrate the relationships between criteria and to remove inefficient criteria. Afterwards, by using the selected effective criteria, most appropriate alternative is found by using IF-TOPSIS. A numerical example was introduced to demonstrate the steps of the proposed approach. © 2020, Springer Nature Switzerland AG.