基于二维二元语义和模糊AHP-TODIM的低碳供应商选择方法

针对专家给出二维语言评价信息的低碳供应商评选问题,提出一种基于二维二元语义和模糊AHP-TODIM的方法。该方法首先提出改进的二元语义模型,基于此定义二维二元语义及其加权平均算子。接着构建低碳供应商评价的指标体系。最后,将专家给出的二维语言评价信息转化为二维二元语义,使用模糊AHP法计算指标权重,并利用二维二元语义加权平均算子集结信息,在此基础上将TODIM方法扩展到二维二元语义环境以获取低碳供应商排序。案例分析说明了所提出的方法的有效性。

Low Carbon Supplier Selection Method Based on 2-dimension 2-tuple Linguistic Information and Fuzzy AHP-TODIM

As to low-carbon supplier selecton problem where 2-dimension linguistic evaluation information is given by experts, a method based on 2-dimension 2-tuple linguistic information and fuzzy AHP-TODIM is proposed. To begin with, a modified 2-tuple linguistic model is built, based on which the definition of 2-dimension 2-tuple linguistic information(2DTL)is given and the weighted average operator of 2DTL is proposed. Secondly, indicator system of low carbon supplier evaluation is given. Finally, the 2-dimension linguistic information given by experts is transformed into 2-dimension 2-tuple linguistic information, and fuzzy AHP method is used to calculate the weights of criterias, then 2-dimension 2-tuple linguistic weighted average operator is employed to aggregate 2DTL. On this basis, TODIM method is extended to 2-dimension linguistic decision environment to obtain the ranking results of low-carbon suppliers. The validity of the method proposed is proved by an illustrative example.