Table 3.

Results of applying filters for the features of the balloon signals.

Features	Scores				Ranking
	Fisher’s	ReliefF	Chi2	MRMR	Total
a 1	0.218	0.123	114.2	1.5 × 10−14	10
a 2	0.386	0.000	160.3	2.9 × 10−14	11
a 3	2.610	0.049	708.1	2.8 × 10−14	5
a 4	15.824	0.073	711.9	3.9 × 10−1	1
a 5	12.875	0.000	65,535.0	9.5 × 10−14	2 or 3
a 6	0.002	0.054	576.7	5.9 × 10−14	8
a 7	2.032	0.017	630.8	1.1 × 10−13	4
a 8	0.004	−0.001	13.3	7.6 × 10−14	12
a 9	1.644	0.050	684.8	9.8 × 10−14	2 or 3
a 10	0.051	0.058	191.3	3.9 × 10−14	9
a 11	0.239	0.033	347.0	3.3 × 10−1	6
a 12	2.766	0.000	457.1	8.0 × 10−14	7