Li, Guo-Dong; Masuda, Shiro; Nagai, Masatake - In: Energy 45 (2012) 1, pp. 655-661
approximation method is then presented to find the optimal coefficient values of ESGM(1,1). The improved model is defined as T … integrated into GM(1,1) through the preprocessing for original data set. We call the proposed model as ESGM(1,1). The Taylor …