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What happens where during disasters? A Workflow for the multifaceted characterization of crisis events based on Twitter data
Author(s) -
Kersten Jens,
Klan Friederike
Publication year - 2020
Publication title -
journal of contingencies and crisis management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.007
H-Index - 51
eISSN - 1468-5973
pISSN - 0966-0879
DOI - 10.1111/1468-5973.12321
Subject(s) - workflow , data science , computer science , event (particle physics) , natural disaster , social media , agile software development , cluster analysis , population , set (abstract data type) , visualization , world wide web , data mining , artificial intelligence , software engineering , geography , database , physics , demography , quantum mechanics , sociology , meteorology , programming language
Twitter data are a valuable source of information for rescue and helping activities in case of natural disasters and technical accidents. Several methods for disaster‐ and event‐related tweet filtering and classification are available to analyse social media streams. Rather than processing single tweets, taking into account space and time is likely to reveal even more insights regarding local event dynamics and impacts on population and environment. This study focuses on the design and evaluation of a generic workflow for Twitter data analysis that leverages that additional information to characterize crisis events more comprehensively. The workflow covers data acquisition, analysis and visualization, and aims at the provision of a multifaceted and detailed picture of events that happen in affected areas. This is approached by utilizing agile and flexible analysis methods providing different and complementary views on the data. Utilizing state‐of‐the‐art deep learning and clustering methods, we are interested in the question, whether our workflow is suitable to reconstruct and picture the course of events during major natural disasters from Twitter data. Experimental results obtained with a data set acquired during hurricane Florence in September 2018 demonstrate the effectiveness of the applied methods but also indicate further interesting research questions and directions.