灾害学2024，Vol.39Issue(4)：81-87,7.DOI:10.3969/j.issn.1000-811X.2024.04.012
基于文本数据的灾害信息风险监测与预警集成方法研究
An Integrated Method for Risk Monitoring and Early Warning of Disaster Information Based on Text Data
摘要
Abstract
Based on text data related to disaster information,an integrated method for risk monitoring and early warning is proposed to improve the efficiency of disaster information risk monitoring and the targeted support for early warning provided by monitoring.First,the Octopus data collector is used to collect and process the text data.Second,the BTM topic model is used to construct a risk monitoring model to get topic heat trends and identi-fy high-risk topics requiring urgent warnings.Then,a risk early warning indicator system and a method for deter-mining early warning levels are proposed to calculate the weighted value of the risk integrated early warning indica-tor for the identified topics and determine early warning levels based on early warning intervals.Finally,the risk monitoring and early warning of the"7·20"Zhengzhou heavy rainstorm disaster information in 2021 is taken as an example for experimental analysis to verify the feasibility of the proposed method.The study shows that this meth-od can integrate the text data of disaster information into both the risk monitoring and early warning processes,pro-viding valuable insights into how monitoring results can be better targeted to support early warning efforts.关键词
灾害信息/风险监测/风险预警/集成方法/文本数据/BTM主题模型Key words
disaster information/risk monitoring/risk early warning/integrated methods/text data/BTM topic model分类
资源环境引用本文复制引用
王治莹,陈笑,刘翰界..基于文本数据的灾害信息风险监测与预警集成方法研究[J].灾害学,2024,39(4):81-87,7.基金项目
国家自然科学基金项目"行为决策视角下多种舆情信息异步演化及其多阶段干预决策研究"(72074002) （72074002）
国家自然科学基金项目"多种诱导信息情境下突发公共事件舆情演进规律及其干预机制研究"(71704001) （71704001）
安徽省自然科学基金项目"重大突发事件舆情危机演化规律与干预决策"(2208085Y20) （2208085Y20）
安徽省高校杰出青年基金项目"考虑舆情态势的重大突发事件应急决策方法"(2022AH020031) （2022AH020031）
