Browse > Article

A Study of Themes and Trends in Research of Global Maritime Economics through Keyword Network Analysis  

Jhang, Se-Eun (한국해양대학교 영어영문학과)
Lee, Su-Ho (한국해양대학교 국제무역경제학부)
Publication Information
Journal of Korea Port Economic Association / v.32, no.1, 2016 , pp. 79-95 More about this Journal
Abstract
This study identifies themes and trends in maritime economics and logistics by examining 303 papers published in international journals from 2000 to 2014 using keyword network analysis. Network analysis can be used because the collected data follow Zipf's law and the power law. Utilizing the degree centrality and betweenness centrality, we find the important keywords in each five year period and determine the importance of shared keywords. To further explain keyword centralities, we invented a Delta-C algorithm to show the trends of keywords over time. We found that degree centrality is useful for identifying important research themes in each period because it is mainly concerned with the number of connections. On the other hands, betweenness centrality is useful to determine the unique themes that emerge in each of the specific periods.
Keywords
Maritime Economics; Keyword Network Analysis; Degree Centrality; Betweenness Centrality; Research Themes And Trends;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Kho J. C., Cho, K. T. and Y. H. Cho (2013), "A Study on Research Trend in Management of Technology Using Keywords Network Analysis," Journal of Intelligent Information Systems, Vol.19 No.2, 101-123.   DOI
2 Lee, S. S. (2012), Network Analysis Methods, Seoul: Nonhyung.
3 Newman, M. E. J. (2005), "Power Laws, Pareto Distributions and Zipf's Law," Contemporary Physics, Vol.46 No.5, 323-351.   DOI
4 Park, J. Y., Fu, Z. J. and D. M. Chiu (2012), "Networking, Clustering and Brokering Keywords in the Computer Science Research," In Proceedings of Digital Information Management, 110-115.
5 Ryu, S. I. and T. S. Hyun (2013), "Analysis of Research Trends in the Welfare Field of Public Administration," The Korea Contents Association, Vol.13 No.2, 254-262.   DOI
6 Zipf, G. K. (1949), Human Behavior and the Principle of Least Effort, Oxford: Addison Wesley Press.
7 이재민.강정한 (2011), "지식생산의 구조와 이론사회학의 위상: 사회와 이론의 키워드 네트워크 분석", 사회와 이론, 제19권 제3호, 89-144.
8 장세은.이성민.이수상.김재훈 (2015), "코퍼스와 언어네트워크 분석을 접목한 해양플랜트 산업연구 주제와 동향 연구: 영어 학술논문 저자키워드 사회연결망분석", 언어과학, 제22권 제3호, 171-198.
9 장세은.이수호 (2014), "키워드 네트워크 분석을 활용한 세계 크루즈산업 연구동향", 한국항해항만학회지, 제38권 제6호, 607-614.   DOI
10 Choi, J. W. and W. S. Kang (2014), "Themes and Trends in Korean Educational Technology Research: A Social Network Analysis of Keywords," Procedia: Social and Behavioral Sciences, Vol.131, 171-176.   DOI
11 Cyram Netminer 4.0. Seoul: Cyram Co. Ltd., 2015.
12 Freeman, L. C. (1979), "Centrality in Social Networks: Conceptual Clarification," Social Networks, Vol.1, 215-239.
13 Jang, H. L., Kang, G. W. and E. J. Lee (2012), "Analysis of Research Subject Network in the Field of Oncogene (Korean version)," Journal of Korea Technology Innovation Society, Vol.15 No.2, 369-399.