中文命名实体识别研究方法综述

A review of research methods of Chinese named entity recognition

命名实体是存在于现实世界里的事物,它们与现实世界有着相互作用、相互影响的关系,因此命名实体在一些场景里是很重要的。文章从命名实体识别的定义着手,逐步阐述它从始初到如今的发展状况和识别方法及手段,分析命名实体识别的主要难点,最后通过命名实体识别的三个评价指标来判断实体的边界是否正确,以及实体的类型是否标注正确。

Named entities are things that exist in the real world.They interact and influence each other with the real world.Therefore,named entities are very important in some scenarios.Starting with the definition of named entity recognition,this paper gradually elaborates its development from the beginning to the present and its recognition methods and means,and analyzes the main difficulties of named entity recognition,and finally judges whether the entity boundary is correct and whether the entity type is marked correctly through three evaluation indexes of named entity recognition.