Fig. 7

An example of knowledge triplet extraction from a patient case summary. The model processes the unstructured text (top box) and identifies key entities such as “Disease,” “Symptoms,” “Medication,” and their attributes (e.g., “Dosage,” “Course of Treatment”). It then structures this information into a hierarchical graph of (head, relation, tail) triplets, as shown in the diagram below the text. The right side shows the English version, and the left side shows the original Chinese example.