Research Article

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

Table 3

The predicting performance of the optimal feature subsets obtained from different feature selection methods.

ApproachesDimension of the optimal feature subsetMSERMSEMRPE (%)Time (second)

PSOHFS24 (syndromes)0.16220.40271.07003.0108
CFM (top 15%)22 (symptoms)14.45753.802311.89072.8510
CFM (top 30%)45 (symptoms)6.26112.50227.86324.8010
PWM (100 iterations)92 (symptoms)3.22681.79635.56458.8760
PWM (200 iterations)89 (symptoms)2.75161.65885.23518.7390