灾害学2024，Vol.39Issue(4)：47-54,8.DOI:10.3969/j.issn.1000-811X.2024.04.007
考虑时空异质性的洪涝灾害文献文本研究
Textual Analysis of Flood Disaster Literature Considering Spatio-Temporal Heterogeneity
摘要
Abstract
Flood disasters are among the most severe natural disasters,attracting extensive research.By em-ploying the Latent Dirichlet Allocation topic model and the Term Frequency-Inverse Document Frequency algo-rithm,an in-depth textual analysis of Chinese flood disaster literature is done,aiming to reveal the overall charac-teristics and spatio-temporal heterogeneity of flood disaster research.The results show that:(1)Through topic mining,existing studies can be categorized into five main dimensions:flood disaster risk and response,hydrolog-ical models and climate,urban flood management,ecological protection and social development,and agricultur-al impacts.(2)Based on the TF-IDF algorithm,the spatio-temporal heterogeneity of the research is discerned;from a temporal dimension,research can be divided into stages of awareness of prevention and control,period of systematic research development,and era of diversified research eruption;from a spatial perspective,natural and social backgrounds have a fundamental impact on research focuses.Based on this analysis,the future research directions of flood disaster studies is prognosticated.关键词
洪涝灾害/时空异质性/文本分析/主题挖掘Key words
flood disasters/spatio-temporal heterogeneity/textual analysis/topic mining分类
资源环境引用本文复制引用
宋苑震,田健,艾合麦提·那麦提,贺蔚杰,曾坚..考虑时空异质性的洪涝灾害文献文本研究[J].灾害学,2024,39(4):47-54,8.基金项目
资助来源"基于智慧与韧性适灾机理的沿海河口城市雨潮组合风险防控规划理论"(52378065) （52378065）
