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Searching and Structuring the Twitter Stream for Crisis Response: A Flexible Concept to Support Research and Practice

Bongard, Jan Heinrich and Kersten, Jens and Klan, Friederike (2022) Searching and Structuring the Twitter Stream for Crisis Response: A Flexible Concept to Support Research and Practice. 4th International Symposium on Open Search Technology, 2022-10-10 - 2022-10-12, Genf, Schweiz. (In Press)

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In the context of crisis situations, the high information value of Twitter has already been demonstrated in several studies. However, there are various issues that prevent users from deploying information from social media in practice. This paper outlines the experiences and results of the Data4Human project. In collaboration with the World Food Programme, the German Red Cross and the Humanitarian Open Street Map Team, requirements were defined that have to be fulfilled for a practical use of the data. On this basis, a modular processing system was developed which, in combination with a dashboard, enables the practitioners to evaluate the data and analysis results in a structured and interactive manner. Pre-trained and adjustable machine learning methods combined with search- and unsupervised aggregation capabilities allow to yield different thematic views on the data. By using two use cases, Cyclone Idai and Kenneth in 2019 in Southern Africa and the current war in Ukraine, it becomes apparent, that interactive and customizable methods are of great importance, as well as an effective data representation that enables the identification of relevant content. Based on the results obtained and the user feedback received, future research guidelines are defined in order to close the evident gap between research and practice.

Item URL in elib:https://elib.dlr.de/188515/
Document Type:Conference or Workshop Item (Speech)
Title:Searching and Structuring the Twitter Stream for Crisis Response: A Flexible Concept to Support Research and Practice
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Bongard, Jan HeinrichUNSPECIFIEDhttps://orcid.org/0000-0001-9453-7391UNSPECIFIED
Kersten, JensUNSPECIFIEDhttps://orcid.org/0000-0002-4735-7360UNSPECIFIED
Klan, FriederikeUNSPECIFIEDhttps://orcid.org/0000-0002-1856-7334UNSPECIFIED
Date:20 June 2022
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Status:In Press
Keywords:Crisis informatics, modular processing, dashboard, Twitter stream, supervised and unsupervised methods
Event Title:4th International Symposium on Open Search Technology
Event Location:Genf, Schweiz
Event Type:international Conference
Event Start Date:10 October 2022
Event End Date:12 October 2022
Organizer:Open Search Foundation e.V.
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):R - Environment, Health and Big Data
Location: Jena
Institutes and Institutions:Institute of Data Science > Data Acquisition and Mobilisation
Deposited By: Bongard, Jan
Deposited On:02 Nov 2022 08:24
Last Modified:24 Apr 2024 20:49

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