Research Article

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

Figure 4

Two groups of symptoms are represented: “lip color” and “emotion.” (a) The syndrome feature “lip color” defined on four clinical symptoms which describe four possible positive states of “lip colors.” (b) The syndrome feature “emotion” defined on three clinical symptom features which describe three types of emotional states.
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(a)
127572.fig.004b
(b)