Table 2.

The accuracy and UWA (averaged over four independent runs) of 11 class imbalance scenarios using various values of $\gamma$ for the AFCL. The parameter $\eta$ was consistently set to 0.

Scenario	Metric	$\mathit{\gamma }$
		0	1	2	4	7	10
50:50	Accuracy	78.08	74.83	77.08	77.58	76.58	77.50
	UWA	77.70	74.84	76.77	77.55	76.55	77.25
55:45	Accuracy	80.17	81.25	80.75	80.00	81.75	76.83
	UWA	80.14	81.19	80.69	79.96	81.70	76.82
60:40	Accuracy	79.42	78.50	77.92	80.17	80.67	80.08
	UWA	84.42	83.42	80.00	83.00	82.42	82.92
65:35	Accuracy	84.42	83.42	80.00	83.00	82.42	82.92
	UWA	81.98	81.22	77.87	80.39	80.68	80.16
70:30	Accuracy	83.75	83.83	82.17	82.58	84.83	82.25
	UWA	79.64	79.18	77.82	77.51	79.67	78.71
75:25	Accuracy	85.42	86.17	84.42	84.83	85.75	86.00
	UWA	76.27	79.85	77.08	76.41	77.34	78.47
80:20	Accuracy	89.33	89.58	87.67	89.42	87.33	88.00
	UWA	77.59	78.67	78.43	79.31	78.97	70.12
85:15	Accuracy	87.42	89.00	88.17	88.33	89.08	90.08
	UWA	64.97	72.08	71.99	71.47	71.95	77.04
90:10	Accuracy	92.42	92.33	93.42	93.25	92.58	91.25
	UWA	64.00	67.94	66.04	74.42	80.54	68.35
95:5	Accuracy	94.17	93.17	95.33	95.00	94.00	95.09
	UWA	62.13	53.11	57.64	59.17	55.22	55.82
98:2	Accuracy	96.92	96.92	95.00	96.00	96.92	96.67
	UWA	56.59	51.56	55.61	52.63	53.10	52.98