Skip to content
Extra Form
Abstract Design rules for ships have become more extensive and detailed due to an increase in the sizes of ships. Several variables and equations used in the rules are complex, thereby impeding their review by reviewers due to their voluminosity. In addition, because these rules are constantly revised, professional investigators may miss these changes. To prevent such confusion, a shipping register, which approves ship drawings, constantly automates the search and review processes of the rules. Consequently, this study proposes a method for recognizing variables in documents to review the rules and build relationships between variables. Each component of a document must be accurately identified. The document containing these rules includes different components such as equations, figures, and strings. Because these rules are mainly converted to a portable document format (PDF) for compatibility, it is challenging to extract each component as raw data. This study used a public library to extract elements from the PDF and utilized the positional relationship between the elements to identify the variables. By applying the Levenshtein distance algorithm, which compares the differences between two strings, the document was partitioned following to the table of contents. Hence, the identified variables were indexed into sections of the table of content. Additionally, based on the indexed information, a data structure was proposed to show the equations, definition of variables, and relationships. This study applied it to common structural rules (CSR), which are widely used in the shipbuilding industry. The effectiveness of the proposed method was confirmed by achieving the F1-score = 0.93 in variable recognition and intuitively visualizing the relationship between the variables.
Publication Date 2022-11-16
Role Corresponding Author
Category SCIE
Impact Factor 6.167

Min-Chul Kong, Myung-Il Roh, Ki-Su Kim, Ho-Gyun Park, Jong-Oh Kim, "Variable Indexing Method in Rule Documents for Ship Design Using Extraction of PDF Elements", Journal of Computational Design and Engineering, Vol. 9, No. 6, pp. 2556-2573, 2022.11.16

https://doi.org/10.1093/jcde/qwac123


  1. No Image 06Jun
    by SyDLab
    in International Journal

    Hye-Won Lee, Myung-Il Roh, Ki-Su Kim, “Ship Route Planning in Arctic Ocean Based on POLARIS”, Ocean Engineering, Vol. 234, pp. 109297.1-14, 2021.08.15

  2. No Image 09Dec
    by SyDLab
    in International Journal

    Hye-Won Lee, Joo-Hyun Woo, Myung-Il Roh, Seung-Ho Ham, et al., "Integrated Simulation of Virtual Prototypes and Control Algorithms of Unmanned Surface Vehicles Based on a Robot Operating System", Journal of Marine Science and Technology (Taiwan)

  3. No Image 12Aug
    by SyDLab
    in International Journal

    Won-Jae Lee, Myung-Il Roh, Hye-Won Lee, Jisang Ha, Yeong-Min Cho, Nam-Sun Son, “Detection and Tracking for the Awareness of Surroundings of a Ship Based on Deep Learning”, Journal of Computational Design and Engineering, Vol. 8, No. 5

  4. No Image 10Dec
    by SyDLab
    in International Journal

    Ki-Su Kim, Myung-Il Roh, Seung-Min Lee, "Quasi-static Flooding Analysis Method of a Damaged Ship Considering Oil Spill and Cargo Load", Journal of Ship Production and Design, 2022.02.10

  5. No Image 07Jan
    by SyDLab
    in International Journal

    Min-Chul Kong, Myung-Il Roh, Ki-Su Kim, Jeongyoul Lee, Jongoh Kim, Gapheon Lee, "Object Detection Method for Ship Safety Plans Using Deep Learning", Ocean Engineering, 2022.02.15

  6. No Image 11Jul
    by SyDLab
    in International Journal

    Do-Hyun Chun, Myung-Il Roh, Hye-Won Lee, "Automation of Crane Control for Block Lifting Based on Deep Reinforcement Learning", Journal of Computational Design and Engineering, Vol. 9, No. 4, pp. 1430- 1448, 2022.07.23

  7. No Image 21Oct
    by SyDLab
    in International Journal

    Jin-Hyeok Kim, Myung-Il Roh et al., "Prediction of the Superiority of the Hydrodynamic Performance of Hull Forms Using Deep Learning", International Journal of Naval Architecture and Ocean Engineering, Vol. 49, pp. 100490.1-15, pp. 2022.11.01

  8. No Image 15Nov
    by SyDLab
    in International Journal

    Min-Chul Kong, Myung-Il Roh, Ki-Su Kim, Ho-Gyun Park, Jong-Oh Kim, "Variable Indexing Method in Rule Documents for Ship Design Using Extraction of PDF Elements", Journal of Computational Design and Engineering, Vol. 9, No. 6, 2022.11.16

  9. No Image 25Apr
    by SyDLab
    in International Journal

    In-Chang Yeo, Myung-Il Roh, Do-Hyun Chun, Seok Ho Jang, Jae Won Heo, "Optimal Arrangement Design of Pipeline Support by Considering Safety and Production Cost", International Journal of Naval Architecture and Ocean Engineering, 2023.05.10

  10. No Image 16May
    by SyDLab
    in International Journal

    Jisang Ha, Myung-Il Roh, Ki-Su Kim, Jin-Hyeok Kim, "Method for Pipe Routing Using the Expert System and the Heuristic Pathfinding Algorithm in Shipbuilding", International Journal of Naval Architecture and Ocean Engineering, 2023.05.26

  11. No Image 21Apr
    by SyDLab
    in International Journal

    Hye-Won Lee, Myung-Il Roh, Yeong-Min Cho, Jeong-Ho Park, "Data Association for Autonomous Ships Based on the Virtual Simulation Environment", Ocean Engineering, Vol. 281, pp. 114646.1-17, 2023.08.01

  12. No Image 13Oct
    by SyDLab
    in International Journal

    Do-Hyun Chun, Myung-Il Roh, In-Chang Yeo, Hye-Won Lee, “Proposed Method for Design Optimization of LNG Tanks Based on the Arrangement of Thermal Insulation Panels”, Ocean Engineering, Vol. 288, Part 2, pp. 116063.1-14, 2023.11.15

  13. No Image 19Dec
    by SyDLab
    in International Journal

    Do-Hyun Chun, Myung-Il Roh, Hye-Won Lee, Donghun Yu, "Method for Collision Avoidance Based on Deep Reinforcement Learning with Path-Speed Control for an Autonomous Ship", IJNAOE, Vol. 16, pp. 100579.1-19, 2023.12.22

  14. No Image 02Feb
    by SyDLab
    in International Journal

    Donghun Yu, Myung-Il Roh, “Method for Anti-collision Path Planning Using Velocity Obstacle and A* Algorithms for a Maritime Autonomous Surface Ship”, International Journal of Naval Architecture and Ocean Engineering, Vol. 16, 2024.02.02

  15. No Image 06Apr
    by SyDLab
    in International Journal

    Hyun-Soo Kim, Myung-Il Roh, “Interpretable, Data-driven Models for Predicting Shaft Power, Fuel Consumption, and Speed Considering the Effects of Hull Fouling and Weather Conditions”, IJNAOE, 2024.04.14

  16. No Image 06May
    by SyDLab
    in International Journal

    Jin-Hyeok Kim, Myung-Il Roh, In-Chang Yeo, "Hull Form Optimization of Fully Parameterized Small Ships Using Characteristic Curves and Deep Neural Networks", International Journal of Naval Architecture and Ocean Engineering, 2024.05.08

  17. No Image 25Jun
    by SyDLab
    in International Journal

    Min-Chul Kong, Myung-Il Roh, "A Method for Implementing a Ship Navigation Simulator for the Generation and Utilization of Virtual Data", International Journal of Naval Architecture and Ocean Engineering, 2024.06.25

  18. No Image 10Jul
    by SyDLab
    in International Journal

    Jeong-Ho Park, Myung-Il Roh, Hye-Won Lee, Yeong-Min Jo, Jisang Ha, Nam-Sun Son, "Multi-vessel Target Tracking with Camera Fusion for Unmanned Surface Vehicles", International Journal of Naval Architecture and Ocean Engineering, Vol. 16, 2024.07.14

  19. No Image 29Aug
    by SyDLab
    in International Journal

    Jisang Ha, Myung-Il Roh, Hye-Won Lee, "Ship Route Planning for Collision Avoidance Based on the Improved Isochrone Method", International Journal of Naval Architecture and Ocean Engineering, 2024.08.14

  20. No Image 10Sep
    by SyDLab
    in International Journal

    Ha-Yun Kim, Myung-Il Roh, Hye-Won Lee, In-Chang Yeo, Yeong-Min Jo, Jisang Ha, Nam-Sun Son, “A Hybrid Tracking Method for Maritime Obstacles Using Sensor Data”, Ocean Engineering, Vol. 312, Part 2, 2024.09.16

Board Pagination Prev 1 2 3 4 5 6 Next
/ 6

Powered by Xpress Engine / Designed by Sketchbook

sketchbook5, 스케치북5

sketchbook5, 스케치북5

나눔글꼴 설치 안내


이 PC에는 나눔글꼴이 설치되어 있지 않습니다.

이 사이트를 나눔글꼴로 보기 위해서는
나눔글꼴을 설치해야 합니다.

설치 취소