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Table 1 Examples of entity boundary partition error

From: A hybrid approach for named entity recognition in Chinese electronic medical record

Recognized entity Correct entity Category
左附件 (left attachment) 左附件区 (left attachment area) Anatomy
卵巢切除 (Ovariectomy) 卵巢切除术 (Ovariectomy surgery) surgery
贝伐 (Beval) 贝伐珠单抗 (Bevacizumab) Drug
睡眠不佳 (Poor sleep) 饮食睡眠不佳 (poor diet and sleep) Individual symptom
疼痛 (pain) 疼痛不适 (pain discomfort) Symptom description