模型

$f_0$ ¹

exact²

$\stackrel{⌢}{\tau }$ ³

mean⁴

MSE⁵

模型A

$\alpha =0.1,\lambda =1$

100

-

-

-

-

$\alpha =0.2,\lambda =2$

100

-

-

-

-

$\alpha =0.3,\lambda =3$

98

-

-

-

-

$\alpha =0.4,\lambda =4$

100

-

-

-

-

$\alpha =0.5,\lambda =5$

100

-

-

-

-

$\alpha =0.6,\lambda =4$

100

-

-

-

-

$\alpha =0.7,\lambda =3$

100

-

-

-

-

$\alpha =0.8,\lambda =2$

100

-

-

-

-

$\alpha =0.9,\lambda =1$

98

-

-

-

-

模型B

99

99

512

512.4

2.78

模型C

98

98

400 612

402.11 612.16

15.79 28.76

模型D

100

99

69

68.09

2.98