Identifying Potential Clinical Syndromes of Hepatocellular Carcinoma Using PSO-Based Hierarchical Feature Selection Algorithm

Table 4

Comparisons of the PSOHFS-based optimal syndrome set with other potential syndrome subsets.

Feature set	Dimension	MSE	RMSE	MRPE (%)	Time (second)
OPS	24	0.1622	0.4027	1.0700	3.0108
FCS	27	0.1834	0.4283	1.9572	3.2604
FRS1	13	3.3735	1.8367	6.2871	2.4024
FRS2	19	1.7084	1.3071	4.5202	2.9640