Group Feature Screening Based on Information Gain Ratio for Ultrahigh-Dimensional Data

Table 7

Simulation results for Model 5.

p	Feature screening Methods (note: running time in seconds)
	GIGR-SIS	IG-SIS	GIG-SIS	gSIS	gHOLP
1500	3.354	2.930	3.383	1.519	1.601
2500	5.673	4.901	5.691	2.535	2.670
3500	7.974	6.952	8.029	3.551	3.754
4500	10.320	8.927	10.400	4.573	4.816
5500	12.726	10.931	12.809	5.607	5.925
6500	15.075	12.860	15.186	6.625	7.007
7500	17.636	14.915	17.761	7.662	8.093
8500	19.533	16.544	19.660	8.556	9.038
9500	21.837	18.512	21.972	9.588	10.115
10500	24.242	20.580	24.404	10.649	11.269