铁道运输与经济2024，Vol.46Issue(4)：75-82,8.DOI:10.16668/j.cnki.issn.1003-1421.2024.04.10
基于命名实体识别的铁路应急预案智能管理方法
Intelligent Management Method for Railway Emergency Plan Based on Named Entity Recognition
摘要
Abstract
A railway emergency plan serves as an action guide for making fast efforts in scientific decision making and rescue organizing in response to emergencies such as natural disasters,accident disasters and social security events.As emergency plans are usually stored in non-structured documents,which are vulnerable to information loss in its structuring and retrieval process,an intelligent management method for railway emergency plans based on named entity recognition was proposed to solve the problem.Firstly,the intelligent analysis of the flow document structure,recognition of attachments,and information integration of the time-sequence documents were realized by applying information such as formatting style,editing semantics and text semantics.Then,an entity category set was constructed with entities and their categories in the knowledge graph,with the entity category information spliced with the character embedding to construct the enhanced feature vectors,and the entities extracted from texts were named and given paragraph attributes.Finally,a hierarchical expression of named entities was constructed by using a recursive neural network and an attention mechanism,with the document structure and semantics factors integrated to realize the retrieval and results ranking.The experimental results show that this method can accurately analyze the document structures and recognize named entities under low annotation conditions,which makes the emergency plans retrieved and sorted intelligently,thus improving the intelligent level of railway emergency plan management.关键词
铁路/应急预案/命名实体识别/文档结构解析/知识图谱Key words
Railway/Emergency Plan/Named Entity Recognition/Document Structure Analysis/Knowledge Graph分类
交通工程引用本文复制引用
王华..基于命名实体识别的铁路应急预案智能管理方法[J].铁道运输与经济,2024,46(4):75-82,8.基金项目
国家自然科学基金青年科学基金项目(2201445) （2201445）
天津市科技支撑计划重点项目(20YFZCGX00710) （20YFZCGX00710）
中国国家铁路集团有限公司科技研究开发计划实验室基础研究项目(L2022G013) （L2022G013）
中国铁路设计集团有限公司重点课题(2023A0253818) （2023A0253818）
