Global Optimization of Redescending Robust Estimators

Table 1

Defining parameters (a and b) of lines y = ax + b fitted to the data obtained with different nonredescending estimators computed by GO and by IRLS and corresponding best values of the objective function f.

	LS		L1-norm		L1.5-norm
	IRLS	GO	IRLS	GO	IRLS	GO
a	−0.05626	−0.05626	−0.06074	−0.06074	−0.04952	−0.04952
b	45.1045	45.1045	47.6074	47.6074	43.2558	43.2555
fbest	3618.175	3618.175	388.227	388.227	1084.595	1084.595