摘要
电子病历是由医务人员撰写的面向患者个体描述医疗活动的记录,蕴含了大量的医疗知识和患者的健康信息.电子病历命名实体识别和实体关系抽取等信息抽取研究对于临床决策支持、循证医学实践和个性化医疗服务等具有重要意义,而电子病历命名实体和实体关系标注语料库的构建是首当其冲的.在调研了国内外电子病历命名实体和实体关系标注语料库构建的基础上,结合中文电子病历的特点,提出适合中文电子病历的命名实体和实体关系的标注体系,在医生的指导和参与下,制定了命名实体和实体关系的详细标注规范,构建了标注体系完整、规模较大且一致性较高的标注语料库.语料库包含病历文本992份,命名实体标注一致性达到0.922,实体关系一致性达到0.895.为中文电子病历信息抽取后续研究打下了坚实的基础.
An electronic medical record （EMR） is a patient＇s individual medical record written by health care providers and stored in digital format in which much medical knowledge and information about patient＇s personal health conditions are kept. The construction of annotated corpus for named entities and entity relations on EMR is a primary and fundamental task for information extraction which plays important role in clinical decision support, practice of evidence-based medicine, and other medical applications. Based on survey of current research on corpus construction for named entities and entity relations on EMR, this research proposes an annotation scheme for named entities and entity relations on Chinese electronic medical records （CEMR） according to characteristics of the records. Under the supervision of physicians, a complete and detailed annotation specification on CEMR is formulated, and an annotated corpus with high agreement is constructed. The corpus comprises 992 medical text documents, and inter-annotator agreement （IAA） of named entity annotations and entity relation annotations attain 0.922 and 0.895, respectively. The work presented in this paper builds substantial foundations for the subsequent research on information extraction in CEMR.
作者
杨锦锋
关毅
何彬
曲春燕
于秋滨
刘雅欣
赵永杰
YANG Jin-Feng GUAN Yi HE Bin QU Chun-Yan YU Qiu-Bin LIU Ya-Xin ZHAO Yong-Jie(Web Intelligence Laboratory, Language Technology Research Center, Harbin Institute of Technology, Harbin 150001, China Medical Record Room, the 2nd Affiliated Hospital of Harbin Medical University, Harbin 150086, China Respiratory Department, the 2nd Affiliated Hospital of Harbin Medical University, Harbin 150086, China Neurology Department, the 4th Affiliated Hospital of Harbin Medical University, Harbin 150001, China)
出处
《软件学报》
EI
CSCD
北大核心
2016年第11期2725-2746,共22页
Journal of Software
关键词
中文电子病历
命名实体
实体关系
标注规范
标注语料构建
Chinese electronic medical record
named entity
entity relation
annotation specification
annotated corpus construction
