Öz Supplier evaluation and selection includes both qualitative and quantitative criteria and it is considered as a complex Multi Criteria Decision Making (MCDM) problem. Uncertainty and impreciseness of data is an integral part of decision making process for a real life application. The fuzzy set theory allows making decisions under uncertain environment. In this paper, a trapezoidal type 2 fuz...

In China's industrialization process, the effective regulation of energy and environment can promote the positive externality of energy consumption while reducing negative externality, which is an important means for realizing the sustainable development of an economic society. The study puts forward an improved technique for order preference by similarity to an ideal solution based on entropy ...

risk response planning is one of the main phases in the project risk management and has major impacts on the success of a large-scale project. since projects are unique, and risks are dynamic through the life of the projects, it is necessary to formulate responses of the important risks. the conventional approaches tend to be less effective in dealing with the impreciseness of risk response pl...

Thisarticleis to determine thecompany'sstrategyanditsstrategicpositioning. At first, the most influential internal and external elements were detected with the help of the techniques of strategy formulation. Then using of Strengths, Weaknesses, Opportunities and Threats (SWOT) matrix, we formulated the primary organizational strategies. Using of fuzzy TOPSIS, priorityscore of strategies isspeci...

Knowledge management can greatly facilitate an organization’s learning via strategic insight. Assessing the achievements of knowledge communities (KC) includes both a theoretical basis and practical aspect; however, a cautionary word is in order, because using improper measurements will increase complexity and reduce applicability. Group decision-making, the essence of knowledge communities, le...

The probabilistic linguistic term set (PLTS) has been widely used in multiple criteria group decision making (MCGDM) problems where the information is uncertain and hesitant. To reflect different preferences uncertainties, we propose a new PLTS with probability form of Pythagorean fuzzy (PFS), called (PFPLTS). In addition, considering integrity, uncertainty DMs' preferences, operation aggregati...

This research aims to illustrate and express the impact of analytical techniques such as TOPSIS- FTOPSIS-based Taguchi models on obtaining optimum design fiber-reinforced concrete (FRC).Three levels silica fume content, fly ash water-to-cementitious (W/C) ratio, superplasticizer content were examined in present work. However, steel fiber (1%) maximum aggregate size 14 mm kept constant for all m...

The article uses fuzzy TOPSIS multi-methodological approach in the Turkish domestic airline industry. It starts by describing exceedingly complex nature of competition in the sector. Then, it deals with the constituent parts of the research methodology and the eclectic approach itself. The implementation of fuzzy TOPSIS method in the Turkish domestic airline industry reveals the ranking of majo...

In this article, by using fuzzy AHP and TOPSIS technique we propose a new method for project selection problem. After reviewing four common methods of comparing alternatives investment (net present value, rate of return, benefit cost analysis and payback period) we use them as criteria in AHP tree. In this methodology by utilizing improved Analytical Hierarchy Process by Fuzzy set theory, first...