TABLE III. Comparison With State-of-the-Art Methods for COVID-19 Classification.

Method	ACC (%)	SEN (%)	SPE (%)	AUC (%)
Wang et al. [13]	73.1	67.0	74.0	78.0
Xu et al. [14]	86.7
Shi et al. [10]	89.0	82.2	82.8	89.0
Tang et al. [11]	87.5	93.3	74.5	91.0
Shi et al. [12]	87.9	90.7	83.3	94.2
Mei et al. [26]	83.5	84.3	82.8	92
AFS-DF	91.79	93.05	89.95	96.35