Research on Hybrid Feature Selection Method Based on Iterative Approximation Markov Blanket

Table 6

Comparison of experimental results between CI_AMB and other methods (RMSE evaluation index of GBDT).

	Original data		CI_AMB		XGBoost		Lasso		FCBF-MIC
	Number of features	RMSE	Number of features	RMSE	Number of features	RMSE	Number of features	RMSE	Number of features	RMSE
WYHXB	798	267.5115	80(19 + 61)	232.7352	83	269.1644	89	255.9661	15	265.0474
NYWZ	10283	258.4021	220(59 + 161)	234.8831	212	263.3908	215	256.2172	60	265.2352
BlogData	280	22.7247	48(5 + 43)	7.4822	43	14.5660	47	18.7933	9	24.2629
RBuild	103	458.0302	35(16 + 19)	417.1441	23	458.2780	26	466.8546	3	461.7130
CCrime	127	0.1067	37(3 + 34)	0.1091	37	0.1176	31	0.1121	5	0.1231
Average value		201.3550		178.4708		201.1034		199.5887		203.2763