Journal of Navigation and Port Research (한국항해항만학회지)

Korean Institute of Navigation and Port Research (한국항해항만학회)
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Compression of the Variables Classifying Domestic Marine Accident Data

  • Park, Deuk-Jin (Division of Marine Production System Management, Pukyong National University) ;
  • Yang, Hyeong-Sun (Division of Navigation Convergence Studies, Korea Maritime and Ocean University) ;
  • Yim, Jeong-Bin (Division of Navigation Science, Mokpo National Maritime University)
  • Received : 2021.12.02
  • Accepted : 2021.12.22
  • Published : 2022.04.30
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Abstract

Maritime accidents result in enormous economic loss and loss of life; thus, such accidents must be prevented, and risks must be managed to prevent these occurrences Risk management must be based on statistical evidence such as variables. Because calculating when variables increase statistically can be difficult, compressing the designated variables is necessary to use the maritime accident data in Korea. Thus, in this study, variables of marine accident data are compressed using statistical methods. The date, ship type, and marine accident type included in all maritime accident data were extracted, the number of optimal variables was confirmed using the hierarchical clustering analysis method, and the data were compressed. For the compressed variables, the validity of the data use was statistically confirmed using analysis of variance, and the data of the variables identified using the variable compression method were designated. Consequently, among the monthly and yearly data, statistical significance was confirmed in yearly data, and compression was possible. The significance of the data was confirmed in six and eight types of ships and accidents, respectively, and these were compressed. These results can be directly used for prevention or prediction based on past maritime accident data. Additionally, the data range extracted from past maritime accidents and the number of applicable data will be studied in the future.

Keywords

Acknowledgement

This work was supported by Pukyong National University Research Fund in 2021 (CD20210999)

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