Qian Wuyong, Wang Zhou-Jing, Li Kevin W
School of Business, Jiangnan University, Wuxi 214122, China.
School of Information, Zhejiang University of Finance & Economics, Hangzhou 310018, China.
Int J Environ Res Public Health. 2016 Sep 9;13(9):896. doi: 10.3390/ijerph13090896.
Although medical waste usually accounts for a small fraction of urban municipal waste, its proper disposal has been a challenging issue as it often contains infectious, radioactive, or hazardous waste. This article proposes a two-level hierarchical multicriteria decision model to address medical waste disposal method selection (MWDMS), where disposal methods are assessed against different criteria as intuitionistic fuzzy preference relations and criteria weights are furnished as real values. This paper first introduces new operations for a special class of intuitionistic fuzzy values, whose membership and non-membership information is cross ratio based ]0, 1[-values. New score and accuracy functions are defined in order to develop a comparison approach for ]0, 1[-valued intuitionistic fuzzy numbers. A weighted geometric operator is then put forward to aggregate a collection of ]0, 1[-valued intuitionistic fuzzy values. Similar to Saaty's 1-9 scale, this paper proposes a cross-ratio-based bipolar 0.1-0.9 scale to characterize pairwise comparison results. Subsequently, a two-level hierarchical structure is formulated to handle multicriteria decision problems with intuitionistic preference relations. Finally, the proposed decision framework is applied to MWDMS to illustrate its feasibility and effectiveness.
尽管医疗废物通常只占城市生活垃圾的一小部分，但其妥善处置一直是一个具有挑战性的问题，因为它往往含有传染性、放射性或有害废物。本文提出了一种两级分层多准则决策模型来解决医疗废物处置方法选择（MWDMS）问题，其中处置方法根据不同准则评估为直觉模糊偏好关系，准则权重以实值给出。本文首先介绍了一类特殊直觉模糊值的新运算，其隶属度和非隶属度信息基于交叉比的]0, 1[值。定义了新的得分和准确性函数，以便为]0, 1[值直觉模糊数开发一种比较方法。然后提出了一种加权几何算子来聚合一组]0, 1[值直觉模糊值。与萨蒂的1-9标度类似，本文提出了一种基于交叉比的双极0.1-0.9标度来表征成对比较结果。随后，构建了一个两级分层结构来处理具有直觉偏好关系的多准则决策问题。最后，将所提出的决策框架应用于MWDMS，以说明其可行性和有效性。
