Triangular fuzzy number is an important information expression form of complex and uncertain forecasting system.Three metrics that characterize triangular fuzzy numbers were introduced in this paper,including area type center,area type scat-ter,and midpoint.These indicators reflected the accuracy,fuzzy degree and midpoint characteristics of triangular fuzzy numbers,respectively.On this basis,a new concept of joint correlation coefficient was proposed.Combining the induced ordered weighted geometric average(IOWGA)operator with the joint correlation coefficient of the left and right intervals of the triangular fuzzy number as the optimal criterion,the interval combined forecasting model of IOWGA operator based on triangular fuzzy number and joint correlation coefficients was established.Finally,the validity and stability of the model were proved by example analysis.
关键词
三角模糊数/面积型中心/协同相关系数/IOWGA算子/组合预测
Key words
triangular fuzzy number/area type center/collaborative correlation coefficient/IOWGA operator/combined forecasting
维普
万方数据