模型名称

模型均值函数

Model 1

GO

$m\left(t\right)=a\left(1-{\text{e}}^{-bt}\right)$

Model 2

DSS

$m\left(t\right)=a\left[1-\left(1+bt\right){\text{e}}^{-bt}\right]$

Model 3

GO_ASDE

$E\left[N\left(t\right)\right]={\displaystyle {\sum }_{i=1}^k{a}_i}\left[1-{\text{e}}^{-b_{i}t+\frac{1}{2}{\delta }_i^{2}t}\right]$

Model 4

DSS_ASDE

$E\left[N\left(t\right)\right]={\displaystyle {\sum }_{i=1}^k{a}_i}\left[1-\left(1+b_{i}t\right){\text{e}}^{-b_{i}t+\frac{1}{2}{\delta }_i^{2}t}\right]$