Focal CTC Loss for Chinese Optical Character Recognition on Unbalanced Datasets

Table 2

Dataset with unbalance ratio 10:1.

		accuracy	HF	LF
CTC		0.657	0.711	0.603
0.99	0.5	0.667	0.721	0.613
0.99	1	0.636	0.729	0.543
0.99	2	0.703	0.745	0.662
0.75	0.5	0.684	0.709	0.659
0.75	1	0.641	0.715	0.567
0.75	2	0.631	0.716	0.546
0.5	0.5	0.667	0.741	0.593
0.5	1	0.680	0.722	0.638
0.5	2	0.682	0.728	0.635
0.25	0.5	0.723	0.753	0.694
0.25	1	0.724	0.751	0.697
0.25	2	0.707	0.763	0.650