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http://dx.doi.org/10.5467/JKESS.2022.43.1.224

Text Mining Analysis of News Articles Related to 'Space Hazard'  

Jo, Hoon (Department of Earth Science Education, Korea National University of Education)
Sohn, Jungjoo (Department of Earth Science Education, Korea National University of Education)
Publication Information
Journal of the Korean earth science society / v.43, no.1, 2022 , pp. 224-235 More about this Journal
Abstract
This study aimed to confirm the status of media reports on space hazards using topic modeling analysis of media articles that are related to space hazards for the past 12 years. Therefore, Latent Dirichlet Allocation (LDA) analysis was performed by collecting over 1200 space hazards articles between 2010 and 2021 on solar storm, artificial space objects, and natural space objects from BIGKins news platform. The articles related to solar storm focused on three topics: the effect of solar explosion on satellites; effect of solar explosion on radio communication in Korea, centered on the Korean Space Weather Center; and relationship between aircrew and space radiation. The articles related to artificial space objects focused on three topics: the threat of space garbage to satellite and space stations and the transition of useful objects into space junk; the relationship between space garbage and humanity as shown in movies; and the effort of developed countries for tracking, monitoring, and disposing of space garbage. The articles related to natural space objects focused on two topics: International Space Agency's tracking and monitoring of near-Earth asteroids and the countermeasures of collisions, and the evolution and extinction of dinosaurs and mammals, with a focus on the collisions of asteroids or comets. Therefore, this study confirmed that domestic media play a role in conveying dangers of space hazards and arousing the attention of public using a total of eight themes in various fields such as society and culture, and derived education method and policy on space hazards.
Keywords
news article; space hazard; LDA (Latent Dirichlet Allocation); text mining;
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Times Cited By KSCI : 8  (Citation Analysis)
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