Parameterized Local Reduction of Decision Systems

Table 5

Comparison between 𝜃-local reduction and 𝜃-reduction.

	Accuracy		Raw data	Number of selected attributes		Raw data	Parameter
	𝜃-local-reduction	𝜃-reduction		𝜃-local-reduction	𝜃-reduction
Breast tissue			0.6415			9	0.6667
Class 1	0.6132	0.6151		2	6
Class 2	0.6208	0.6038		3	6
Class 3	0.5717	0.6528		2	6
Class 4	0.6472	0.6038		4	6
Wine			0.9640			13	0.75
Class 1	0.9685	0.9719		8	9
Class 2	0.9730	0.9652		9	10
Class 3	0.9337	0.9663		8	9
Credit approval			0.8071			15	0.8125
Class 1	0.8224	0.7994		14	15
Class 2	0.8009	0.7995		13	14
Ionosphere			0.8889			34	0.8750
Class 1	0.9090	0.9089		14	15
Class 2	0.8917	0.9032		16	17
Spect			0.6590			22	0.8636
Class 1	0.6932	0.6511		15	17
Class 2	0.6170	0.6510		17	18
Wdbc			0.9279			31	0.8333
Class 1	0.9297	0.9122		15	17
Class 2	0.9279	0.9225		15	16
Average	0.79466	0.75170666	0.8147333	10.33333	12.066666	20.66666