Solution of the Ill-Posed Semiparametric Regression Model Based on Singular Value Modification Restriction

Table 1

Parameter valuation comparison of various methods (normal matrix is moderately ill-posed).

	Truth value	Scheme 1	Scheme 2	Scheme 3	Scheme 4	Scheme 5
	2	2.6274	1.9896	2.5172	1.9035	2.0321
	3	2.7828	2.8825	2.8352	2.9255	2.9769
alpha1	-	1.3629	1.6184	1.4088	1.3629	1.3928
k	-	-	0.013	-	0.0445	0.008
alpha2	-	-		-	1.377	3.211
∆X	-	0.4408	0.0120	0.2947	0.0109	0.0049
∆s	-	83.6400	14.8360	59.2897	13.8154	12.1854
	-	0.6395	0.6282	0.6345	0.6043	0.6069

Note. and .