• A new rule-based integrated decision making approach to container transshipment terminal selection 

  Kadaifçi, Çiğdem; Asan, Umut; Serdarasan, Şeyda; Arıcan, Umut (Taylor & Francis, 2019)

  The choice of the port or terminal to perform transshipment operations is a critical decision for container transportation companies (i.e. shipping line companies). This choice is not only affected by transshipment costs ...

• A different construction for some classes of quantum MDS codes 

  Sarı, Mustafa; Kolotoğlu, Emre (Springer, 2019)

  Constructing quantum codes with large minimum distance plays a significant role in quantum computation and communication. Quantum maximum-distance separable (MDS) codes have important place among quantum codes since they ...

• An improved fuzzy cognitive mapping method 

  Asan, Umut; Kadaifçi, Çiğdem (Springer, 2019)

  Fuzzy Cognitive Mapping (FCM) models the evolution of a system over time. However, FCM tends to produce the same steady state values under different initial conditions. To address this issue, this study suggests an improved ...

• A hesitant fuzzy correspondence analysis 

  Bozdağ, Erhan; Yanmaz, Özgür; Kadaifçi, Çiğdem (Springer, 2019)

  Correspondence Analysis (CA), an explanatory multivariate statistical technique, allows a visual representation of relationships between categorical variables. Even the method is widely used in most of the disciplines, in ...

• A novel neighborhood generation method for heuristics and application to traveling salesman problem 

  Öztürk, Melike; Alabaş Uslu, Çiğdem (Springer, 2019)

  This paper presents a novel neighbor generation mechanism for heuristic algorithms in which a permutation solution representation is utilized. The mechanism, called cantor-set based (CB) method, is inspired by the recursive ...

• Improvement of the O2 detection: Substituent’s effect on Pd(II) mesotetraphenylporphyrin probes 

  Zeyrek Ongun, Merve; Topal, Sevinç Zehra; Yel, Zübeyde; Ertekin, Kadriye; Önal Dumanlıoğlu, Emel; Hirel, Catherine (Elsevier, 2019)

  Luminescence-based sensors are among the most promising tools for detection of oxygen gas. Improving the performance of such sensors is still an issue that requires an optimization of its composition which includes an ...

• Improving logistics performance by reforming the pillars of Global Competitiveness Index 

  Kabak, Özgür; Ülengin, Füsun; Önsel Ekici, Şule (Elsevier, 2019)

  The logistics performance of a country is crucial to national and international trade, and therefore has a direct effect on economic development. Owing to limited resources, policymakers need a guide for specifying the ...

• Integrated supply chain and competitive facility location models 

  Bilir, Canser; Önsel Ekici, Şule (Ege University Faculty of Economics and Administrative Sciences, 2016)

  The optimization of supply chain networks plays a key role in determining the competitiveness of the whole supply chain. Therefore, during the last two decades, an increasing number of studies have focused on the optimization ...

• International competitiveness power and human development of countries 

  Ülengin, Füsun; Kabak, Özgür; Önsel, Şule; Aktaş, Emel; Ulusoy, Gündüz (European Operations Management Association, 2007-06)

  Human development should be the ultimate objective of human activity and its aim should be healthier, longer, and fuller lives. It is expected that if the competitiveness of a country is suitably managed, human welfare ...

• Which logistics performance indicator influence export most? A scenario analysis based approach 

  Kabak, Özgür; Önsel Ekici, Şule; Ülengin, Füsun (Ege University Faculty of Economics and Administrative Sciences, 2016-12)

  This study aims to investigate the relationship between logistics performance and exports and attempts to answer the question of which logistics indicators especially influence the country’s export level. For this purpose, ...

• An integrated decision aid system for bosphorus water crossing problem 

  Ülengin, Füsun; Önsel Şahin, Şule (Elsevier, 2001)

  The traffic congestion between the Anatolian and European sides of Istanbul calls for an urgent solution. This paper focuses on the selection of the most suitable and comprehensive remedy for the Bosphorus crossing problem. ...

• A power-based measurement approach to specify macroeconomic competitiveness of countries 

  Ülengin, Füsun; Ülengin, Burç; Önsel Şahin, Şule (Elsevier, 2002)

  The World Economic Forum (Geneva), and the Institute for Management Development (Lausanne) have jointlycreat ed, and continue to maintain, a competitiveness rating and ranking for selected countriesFthe World Competitiveness ...

• The evaluation of electricity generation resources : the case of Turkey 

  Topcu, İlker; Ülengin, Füsun; Kabak, Özgür; Işık, Mine; Ünver, Berna; Önsel Ekici, Şule (Elsevier, 2019)

  Electricity is the rising force among worldwide end-uses of energy. To meet the increasing demand, accurate policy decisions should be made considering each country's own dynamics. In fact, the selection of appropriate ...

• Connecting logistics performance to export : a scenario-based approach 

  Kabak, Özgür; Ülengin, Füsun; Önsel Ekici, Şule (Elsevier, 2018)

  We propose a novel scenario analysis-based approach to investigate the relationship between logistics performance and exports at a country level. Different from the existing scenario analysis methods that contain subjectivity ...

• Using neural networks and cognitive mapping in scenario analysis : the case of Turkey’s inflation dynamics 

  Önsel Şahin, Şule; Ülengin, Füsun; Ülengin, Burç (Elsevier, 2004)

  This paper has two objectives. First of all, it proposes a dynamic scenario analysis approach, which is a revised version of extended anomaly relaxation (EFAR) model [J. Operat. Res. Soc. 48 (1997) 793]; hereafter referred ...

• Customizing exponential semi-Markov decision processes under the discounted cost criterion 

  Çekyay, Bora (Elsevier, 2018-04)

  The uniformization technique is a widely used method for establishing the existence of optimal policies with certain monotonicity properties. This technique converts a semi-Markov decision process with exponential sojourn ...

• A new approach to DEMATEL based on interval-valued hesitant fuzzy sets 

  Asan, Umut; Kadaifçi, Çiğdem; Bozdağ, Erhan; Soyer, Ayberk; Serdarasan, Şeyda (Elsevier, 2018-05)

  Decision-Making Trial and Evaluation Laboratory is a widely used method to analyze and visualize the structure of complex systems through matrices and digraphs. The method typically requires dealing with substantial ...

• Logistics process improvement of Kapikule border crossing 

  Işık, Mine; Çekyay, Bora; Ülengin, Füsun; Kabak, Özgür; Önsel Ekici, Şule; Özaydın, Özay; Toktaş Palut, Peral; Bozkaya, Burçin; Topçu, Yusuf İlker (Dogus University, 2017)

  In this study, logistics process improvement of Kapikule Border Crossing, one of the largest customs gates, has been evaluated. It is obvious that, any decrease in trade time is expected to realize positive impact on the ...

• Exploring the interaction between competitiveness of a country and innovation using Bayesian networks 

  Cinicioğlu, Esma Nur; Ulusoy, Gündüz; Önsel Ekici, Şule; Ülengin, Füsun; Ülengin, Burç (Taylor and Francis, 2017)

  Innovation cannot be related only to some factors inherent in the environment of a country, nor is it a single entity to be managed without any linkages to the rest of the actors comprising the competitiveness of a country. ...

• Policy developments for the reduction of climate change impacts by the transportation sector 

  Ülengin, Füsun; Işık, Mine; Özaydın, Özay; Kabak, Özgür; Topçu, Yusuf İlker; Önsel Ekici, Şule (Elsevier, 2018-01)

  The transportation sector is one of the most significant sources of anthropogenic greenhouse gas emissions. Inorder to mitigate climate change, it is important to apply effective and immediate policies to reduce the ...

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