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Iron and steel enterprises green suppliers' selection belongs to a fuzzy multi-criteria decision problem. Vague sets method is suitable for solving the problems of this kind. However, the score function and the similarity calculation method of Vague sets still have some defects so that cannot reflect the experts' opinion precisely. This paper proposed new methods based on limit formula to calculate...
As a sunrise industry, car rental industry is exerting more influences on the modern world. The health of the car rental industry partially determines whether the whole car industry can maximize its profits. Based on the current situation of the car rental industry in China, this paper identifies several main problems related to the car rental industry by using surveys, case studies, depth interviews...
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