Journal of the Korean Society of Marine Environment & Safety (해양환경안전학회지)

The Korean Society of Marine Environment and safety (해양환경안전학회)
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Analysis of Research Trends in Relation to the Yellow Sea using Text Mining

텍스트 마이닝을 활용한 황해 관련 연구동향 분석연구

  • Kyu Won Hwang (Ocean Law and Policy Institute, Korea Institute of Ocean Science and Technology(KIOST)) ;
  • Kim Jinkyung (Ocean Law and Policy Institute, Korea Institute of Ocean Science and Technology(KIOST)) ;
  • Kang Seung-Koo (Korea-China Joint Ocean Research Center, Korea Institute of Ocean Science and Technology(KIOST)) ;
  • Kang Gil Mo (Korea-China Joint Ocean Research Center, Korea Institute of Ocean Science and Technology(KIOST))
  • Received : 2023.08.25
  • Accepted : 2023.12.29
  • Published : 2023.12.31
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Abstract

Located in the sea area between South Korea, North Korea, and China, the Yellow Sea plays an important role from a geopolitical perspective, and recently, as the use of marine space in the Yellow Sea is expanding, its social and economic values have been increasing further. In addition, owing to rapid climate changes, the need for joint response and cooperation between Korea and China is increasing in various fields, including changes in the marine environment and marine ecosystem and generation and movement of air pollutants. Accordingly, in this study, core topics were derived from research papers with the Yellow Sea as a keyword, and research trends to date were explored through author network analysis. As a specific research method, research papers related to the Yellow Sea published between 1984 and 2021 were extracted from the Web of Science database and were classified into four periods to derive core topics using topic modeling, a type of text mining. Furthermore, the influences of major research communities, researchers, and research institutes in the appropriate fields were identified through analyzing the author network, and their implications were presented. The analysis results indicated that the core topics of research papers on the Yellow Sea had changed over time, and differences existed in the influence (centrality) of key researchers. Finally, based on the results of this study, this study aims to identify research trends related to the Yellow Sea, major researchers, and research institutes and contribute to research cooperation between Korea and China regarding the Yellow Sea in the future.

황해는 지정학적으로 한국, 중국, 북한 사이 해역에 위치하고 있으며, 최근 해양공간 이용이 확대되어 사회적·경제적 가치가 증가하고 있다. 또한 기후변화로 인한 해양환경 변화, 대기오염물질 이동 등 한·중 공동 대응 및 협력의 필요성이 증가되고 있다. 본 연구에서는 황해(Yellow Sea) 키워드의 연구논문을 대상으로 핵심주제(Topic)을 도출하고, 저자 네트워크 분석을 수행하여 연구동향을 탐색하였다. 연구대상으로 1984년부터 2021년 사이에 게재된 Web of Science DataBase의 황해 관련 연구논문을 추출하고, 한중 어업협정, 해양환경공동조사 등 한국과 중국의 주요 이벤트를 중심으로 4개의 시기로 구분하였다. 연구방법으로 텍스트 마이닝(Text Mining)의 일종인 토픽모델링(Topic Modeling)을 활용하여 Topic을 도출하였다. 또한 저자 네트워크를 분석하여 해당 분야의 주요 연구 그룹(Community)과 연구자 및 연구기관의 영향력을 파악하고 시사점을 제시하였다. 분석결과 황해 연구논문의 핵심주제는 1기 퇴적물, 해양생물, 2기 산성화, 미세먼지, 3기 수산양식, 지진, 4기 탄소요인, 해양생태계 등으로 변화하였고, 시기별로 핵심 연구자를 중심의 연구자 그룹이 증가하였다. 연구결과를 토대로 황해 관련 연구 동향과 주요 연구자 및 연구기관을 파악함으로써 향후 한국과 중국 간의 황해 연구협력에 기여하고자 한다.

Keywords

Acknowledgement

이 연구는 2023년도 한국해양과학기술원 해양법·정책연구소에서 수행 중인 "해양법적 갈등현안 해결 및 해양경제영역 확장을 위한 국제 네트워크 인프라 구축 사업(PEA0043)"과 2023년도 해양수산부 재원으로 해양수산과학기술진흥원의 지원을 받아 수행된 연구(20220407, 한-중해양과학공동연구센터)입니다.

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