Table 1.

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

Scenario	Metric	$\mathit{\eta }$
		0	60	120	180	240	300
50:50	Accuracy	78.92	77.83	79.75	71.08	77.17	78.83
	UWA	79.00	78.28	80.32	72.53	77.87	79.42
55:45	Accuracy	79.50	79.50	79.33	77.83	77.67	77.75
	UWA	78.70	79.34	79.15	77.17	78.21	76.50
60:40	Accuracy	84.50	82.92	82.42	81.33	82.08	83.17
	UWA	83.09	81.82	81.27	79.71	81.74	81.66
65:35	Accuracy	81.50	83.42	83.25	81.59	82.58	79.25
	UWA	79.19	80.91	80.73	77.92	79.43	75.42
70:30	Accuracy	82.50	84.33	85.08	82.08	83.42	83.00
	UWA	78.41	78.26	80.91	77.78	79.14	75.11
75:25	Accuracy	86.75	85.17	85.58	85.17	86.92	86.58
	UWA	77.87	76.48	77.74	77.03	78.63	77.57
80:20	Accuracy	86.00	87.25	87.33	87.92	87.00	88.25
	UWA	76.16	74.65	76.94	76.28	77.49	76.97
85:15	Accuracy	87.33	87.08	86.75	87.42	87.33	87.67
	UWA	70.08	66.34	55.77	68.33	69.83	62.83
90:10	Accuracy	90.83	91.00	90.83	90.67	89.50	91.67
	UWA	64.91	68.61	66.11	64.02	61.77	72.58
95:5	Accuracy	94.42	93.33	93.42	94.00	92.83	93.25
	UWA	54.77	60.70	54.24	50.00	49.38	54.80
98:2	Accuracy	97.42	97.83	98.08	98.08	98.33	98.08
	UWA	52.45	52.66	55.87	55.87	49.83	52.79