A Novel Approach towards Medical Entity Recognition in Chinese Clinical Text

Table 1

Drug name entities and definitions of medication events.

Semantic type	Definition
Drug name entity	Names of TCM or WM drugs used in clinical treatment, including single drugs or drug combinations, general names of drugs, and TCM-specific decoctions and paste formula
Name of WM drug	Drugs used in WM, including chemical name, trade name, common name, and prescription name
Dose of WM	Dosage of WM for each patient each time as per doctor’s advice
WM use method	Methods to use WM by a patient as per the doctor’s advice
WM use frequency	Time interval for use of a single dose of WM as per the doctor’s advice
Name of TCM drug	Different types of TCM products made from TCM materials or with TCM materials as raw materials, in TCD or TCM-WM combined treatment
Dose of TCM	A TCM-exclusive concept, including 3 cases: potions, tablets, and pills. Weight of TCM potions and number of TCM tablets or pills following the doctor’s advice
TCM drug form	A TCM-exclusive concept or a TCM application mode in adaptation to requirements of treatment or prevention following the doctor’s advice
TCM overall dose	A TCM-exclusive concept or the total number of medications following the doctor’s advice
TCM use frequency	Time interval for use of a single dose of TCM following the doctor’s advice
TCM use method	Methods to use TCM by a patient following the doctor’s advice
TCM use requirements	A TCM-exclusive concept or the conditions met by a patient to use TCM following the doctor’s advice