Optimization of Albinism Differential Equation Parameter of Non-equal Interval GM(1, 1) Model

摘要

In order to make the albinism differential equation match the grey differential equation, this paper estimates the parameters a and b of the grey differential equation (4) by using the method of least squares, and then by optimizing the parameters of albinism differential equation. This paper solves the parameters of albinism differential equation by putting the general solution of the albinism differential equation into the grey differential equation, and then we get a new albinism differential equation, and construct a new non-equidistance GM(1, 1) model. The examples show that the new model has a better simulation result, and further extends the applicable scope of the GM(1, 1) model.