Grey system theory was pioneered by Ju-Long [27] and identifies hidden original data by transforming irregular original data into strong regular data through an accumulating
generation operator (AGO) [28]. The GM(1,1) is the main grey theory forecastin gmodel with good short-term forecasting accuracy. Due to the few samples required and its fast calculations, it is successfully used in engineering, technology,industrial and agricultural production, economics, and many other fields [29–34]. However, for practical GM(1,1) applications, the forecasting accuracymay decrease when the original data show an increasing trend [35] or when the data samples rapidly mutate [13].