Ant Colony Optimization-Based Streaming Feature Selection: An Application to the Medical Image Diagnosis

Table 5

Performance metric comparison of features selected by the proposed approach, OSFS [15], and alpha-investing [16] given as an input to the decision table classifier.

Datasets	Precision			Recall			F1 score			Accuracy
	ACO	OSFS	Alpha	ACO	OSFS	Alpha	ACO	OSFS	Alpha	ACO	OSFS	Alpha	All feats
Iris	96.2	96.2	94.0	96.0	96.0	94.0	96.0	96.0	94.0	96.0	96.0	93.8	93.8
Liver	54.3	33.8	48.9	57.3	58.1	57.3	52.1	42.7	44.3	56.8	56.9	58.0	54.7
Diabetes	74.3	74.8	77.8	74.7	75.0	78.3	73.0	74.9	77.9	74.7	75.9	77.7	77.7
House-votes	95.9	95.8	94.3	95.6	95.9	94.3	95.9	95.7	94.3	95.4	96.0	94.8	83.7
Labor	93.0	70.9	78.6	93.0	71.9	78.9	93.0	70.5	78.7	90.1	81.0	75.9	85.4
Colic-horse	74.7	74.7	71.9	75.0	75.0	73.0	74.8	74.8	72.0	74.7	76.1	74.7	74.6
Lung-cancer	72.0	41.9	39.1	68.8	46.9	43.8	68.4	42.6	37.9	65.8	42.7	41.0	44.3
SPECT	81.8	69.1	45.6	75.0	70.0	67.5	69.1	63.0	54.4	75.0	71.0	66.8	65.5
Clean-musk	95.2	56.5	99.6	94.7	61.6	61.3	94.7	61.8	94.7	95.1	63.0	95.1	95.1
Colon	67.2	74.2	61.3	66.1	74.2	62.9	65.9	74.5	61.6	72.6	71.6	59.7	54.2
Leukemia	46.2	38.4	21.0	44.4	44.4	45.8	45.0	40.3	28.8	45.7	49.7	42.0	37.6
Nci9	62.4	78.3	78.3	78.3	78.3	78.3	69.5	73.0	68.8	78.2	74.5	78.3	65.2
Lymphoma	44.5	33.6	26.7	47.9	38.5	36.5	42.7	34.7	28.1	41.9	40.2	34.8	33.1
Test-lung	42.6	42.6	20.1	43.8	49.3	32.9	42.8	43.9	24.8	42.8	48.9	34.6	39.3