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

Table 4

Performance metric comparison of features selected by the proposed approach, OSFS [15], and alpha-investing [16] given as an input to the JRip 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	94.1	94.1
Liver	63.4	54.4	48.6	62.2	57.8	53.8	55.9	48.9	47.9	61.7	56.9	53.7	53.8
Diabetes	75.8	75.9	76.3	75.9	75.9	76.8	74.1	75.9	76.4	75.5	77.0	77.4	77.4
House-votes	95.8	96.3	96.0	95.6	96.3	95.9	95.7	96.3	95.9	95.8	95.5	95.6	83.6
Labor	89.4	76.7	68.4	89.5	77.2	68.4	89.3	76.3	68.4	90.4	81.0	76.6	83.3
Colic-horse	74.7	75.9	70.9	75.0	76.0	72.3	74.8	75.9	70.8	75.1	76.1	72.1	72.4
Lung-cancer	60.4	67.3	66.3	59.4	65.6	62.5	58.5	66.0	62.7	61.2	50.2	56.8	47.2
SPECT	81.8	66.1	45.6	75.0	68.8	67.5	69.1	66.0	54.4	75.0	68.8	65.4	63.8
Clean-musk	95.2	60.9	60.9	94.7	61.6	61.3	94.7	60.1	61.0	94.4	61.8	62.3	69.3
Colon	61.2	76.0	65.3	58.1	74.2	62.9	57.6	74.4	63.5	64.4	73.9	58.7	63.0
Leukemia	43.0	36.1	21.0	44.4	48.6	45.8	42.9	40.4	28.8	48.3	46.7	45.7	40.7
Nci9	68.8	73.1	61.4	78.3	78.3	78.3	72.7	75.6	68.8	77.3	78.2	78.3	68.7
Lymphoma	42.5	30.3	13.3	42.7	38.5	36.5	37.5	31.8	19.5	45.7	35.5	36.2	37.9
Test-lung	38.8	35.6	14.2	46.6	45.2	30.1	41.7	37.8	15.6	47.8	40.6	29.2	59.3