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Author

Fethullah Gocer

Other affiliations: Galatasaray University
Bio: Fethullah Gocer is an academic researcher from Kahramanmaraş Sütçü İmam University. The author has contributed to research in topics: Multiple-criteria decision analysis & Group decision-making. The author has an hindex of 11, co-authored 32 publications receiving 645 citations. Previous affiliations of Fethullah Gocer include Galatasaray University.

Papers
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Journal ArticleDOI
TL;DR: This article reviews the state-of-the-art of existing DSC literature in detail and identifies key limitations and prospects, summarizes prior research and identifies knowledge gaps by providing advantages, weaknesses and limitations of individual methods.

528 citations

Journal ArticleDOI
TL;DR: It is indicated that dependencies among decision criteria significantly affect the selection process of the most sustainable urban transportation system and can alter the rankings.
Abstract: Unrestrained urban development and rapid expansion of motorized vehicles inevitably lead to unsustainable transportation systems from economic, social and environmental points of view, not only endangering public health but also pressuring ecosystems. Trying to address these issues, transportation policy makers face major challenges in their attempts to identify sustainable transportation alternatives. To provide a systematic approach for such endeavors, this paper evaluates different public bus technologies as urban transportation alternatives. In order to incorporate expert opinion into the model environment, a set of sustainability related criteria is established and expert opinion regarding the sustainability of vehicle options are obtained based on each criterion. Since the fulfillment of a single criterion is not sufficient to deduct meaningful conclusions, the evaluation considered the dependencies among the decision criteria in search of compromising solutions. To address this, an aggregation method based on Intuitionistic Fuzzy Choquet Integral (IFCI) and Group Decision Making (GDM) techniques is proposed. A fuzzy pairwise-comparison measure identification method is used in IFCI in order to define its parameters. TOPSIS (Technique for Order Preference by Similarity to Ideal Solution), another multi-criteria method that ignores interactions, and 2-additive Choquet integral are also employed. The outcomes of IFCI, 2-additive Choquet integral and TOPSIS are compared with one another. The findings indicate that dependencies among decision criteria significantly affect the selection process of the most sustainable urban transportation system and can alter the rankings.

93 citations

Journal ArticleDOI
TL;DR: A new DSC approach for the first time develops a group decision making (GDM) method in an uncertain environment that considers decision makers when they are under pressure and/or lack expertise during the evaluation process of the supplier selection process.

84 citations

Journal ArticleDOI
27 Jun 2018
TL;DR: A state-of-the-art novel methodology consisting of IVIF analytic hierarchy process,IVIF complex proportional assessment, IVIF multi-objective optimization by ratio analysis plus the full multiplicative form, IVif technique for order of preference by similarity to ideal solution and IVIF višekriterijumsko kompromisno rangiranje methods is proposed.
Abstract: Cloud computing technology (CCT) can bring considerable advantages to businesses and people by taking over many time-wasting technicalities, such as establishing communications infrastructure, thus adding value. CCT is revolutionizing every industry by allowing all types of organizations to buy a service instead of owning with flexible rates. An objective of this study is to identify a set of relevant decision criteria and their subcriteria needed in the evaluation of the CCT provider selection (PS) problem. Another objective is to provide a powerful integrated framework that can be used for the evaluation and selection of the most appropriate CCT provider and then to apply this proposed approach in a real case study. CCT PS is a complex multi-criteria decision problem that involves a number of qualitative and quantitative parameters that might be conflicting, or even ambiguous. Interval-valued intuitionistic fuzzy (IVIF) set is an effective concept that is used to cope with uncertainty by taking both the degree of membership and non-membership functions in an interval. Therefore, this paper proposes a state-of-the-art novel methodology consisting of IVIF analytic hierarchy process, IVIF complex proportional assessment, IVIF multi-objective optimization by ratio analysis plus the full multiplicative form, IVIF technique for order of preference by similarity to ideal solution and IVIF visekriterijumsko kompromisno rangiranje methods. This combination aims to rank available CCT PS alternatives in the presence of imprecise and vague information.

71 citations

Journal ArticleDOI
TL;DR: A logical, systematic and integrated MCDM method based on Analytical Hierarchy Process (AHP) and Visekriterijumsko kompromisno rangiranje (VIKOR) under intuitionistic fuzzy (IF) environment is proposed in order to avoid bias, overcome uncertainties and minimize the partiality of decision making processes.

60 citations


Cited by
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Journal ArticleDOI
TL;DR: A model based on a slightly-altered version of the classical unified theory of acceptance and use of technology (UTAUT) is developed, which revealed the existence of distinct adoption behaviors between India-based and USA-based professionals.

543 citations

Journal ArticleDOI
TL;DR: This article reviews the state-of-the-art of existing DSC literature in detail and identifies key limitations and prospects, summarizes prior research and identifies knowledge gaps by providing advantages, weaknesses and limitations of individual methods.

528 citations

Journal ArticleDOI
TL;DR: The main aim of this paper is to identify blockchain- based solutions for addressing food traceability concerns, highlight the benefits and challenges of blockchain-based traceability systems implementation, and help researchers and practitioners to apply blockchain technology based food Traceability systems by proposing an architecture design framework and suitability application analysis flowchart.

334 citations

Journal ArticleDOI
TL;DR: In this paper, an explanation and analysis of blockchain technology is provided to identify implications for the field of Operations and Supply Chain Management (OSCM) and a research agenda is developed around six key themes.
Abstract: Purpose: To encourage the study of blockchain technology from an Operations and Supply Chain Management (OSCM) perspective, identifying potential areas of application; and to provide an agenda for future research. Approach: An explanation and analysis of blockchain technology is provided to identify implications for the field of OSCM. Findings: The hype around the opportunities that digital ledger technologies offer is high. For OSCM, a myriad of ways in which blockchain could transform practice are identified, including: enhancing product safety and security; improving quality management; reducing illegal counterfeiting; improving sustainable supply chain management; advancing inventory management and replenishment; reducing the need for intermediaries; impacting new product design and development; and, reducing the cost of supply chain transactions. The immature state of practice and research surrounding blockchain means there is an opportunity for OSCM researchers to study the technology in its early stages and shape its adoption. Research implications: The paper provides a platform for new research that addresses gaps in knowledge and advances the field of OSCM. A research agenda is developed around six key themes. Practical implications: There are many opportunities for organisations to obtain an advantage by making use of blockchain technology ahead of the competition, enabling them to enhance their market position. But it is important that managers examine the characteristics of their products, services and supply chains to determine whether they need or would benefit sufficiently from the adoption of blockchain. Moreover, it is important that organisations build human capital expertise that allows them to develop, implement, and exploit applications of this technology to maximum reward. Originality: The first paper in a leading international OSCM journal to analyse blockchain technology thereby complementing a recent article on digital supply chains that omitted blockchain.

320 citations

Journal ArticleDOI
TL;DR: New knowledge is added to the literature on factors that affect blockchain adoption among Small-Medium Enterprises in Malaysia that covers the technological dimensions of relative advantage and complexity, organisational dimensions of upper management support and cost and environmental dimensions of market dynamics, competitive pressure and regulatory support.

314 citations