Kyu-Yeul Lee, Myung-Il Roh, "An Efficient Genetic Algorithm Using Gradient Information for Ship Structural Design Optimization", Journal of Ship Technology Research, Vol. 48, No. 4, pp. 161-170, 2001.11.01
International Journal
2013.12.02 16:05
Kyu-Yeul Lee, Myung-Il Roh, "An Efficient Genetic Algorithm Using Gradient Information for Ship Structural Design Optimization", Journal of Ship Technology Research, Vol. 48, No. 4, pp. 161-170, 2001.11.01
조회 수 9372
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| Abstract | Optimization met hods can be generally categrized as global or local. Global optimization methods are suitable for large scale problems that have many local optima. However, these methods require many more evaluations of functions to obtain acceptable optima compared with local optimization methods. however, local methods usually find only the relative optimum closest to the starting point. Various attempts have been made to combine local and global optimization to overcome the individual short comings. Lee and Roh used a GA to finde the starting point for the local optimization by the MFD. However, this method was not ver efficient. Porsani et al. used local optimization to improve the solution obtained from each global iteration of the GA. However, this method was also computationally expensive. We propose now a more efficient hybridization. |
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| Publication Date | 2001-11-01 |
| Role | Coauthor |
| Category | Others |
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Joo-Pil Lee, Myung-Il Roh, Hye-Won Lee, Seung-Ho Ham, "Design of a Wreck Removal Method Considering Safety and Economy", Ships and Offshore Structures, Vol. 15, No. 10, pp. 1037-1056, 2020.12.01
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Ju-Hwan Cha, Myung-Il Roh, Kyu-Yeul Lee, "Integrated Simulation Framework for the Process Planning of Ships and Offshore Structures", Robotics and Computer-Integrated Manufacturing Journal, Vol, 26, No. 5, pp. 430-453, 2010.10.01
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Ju-Sung Kim, Myung-Il Roh, Seung-Ho Ham, “A Method for Intermediate Flooding and Sinking Simulation of a Damaged Floater in Time Domain”, Journal of Computational Design and Engineering, Vol. 4, No. 1, pp. 1-13, 2017.01.01
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June-Beom Lee, Myung-Il Roh, Ki-Su Kim, “Prediction of Ship Power Based on Variation in Deep Feed-forward Neural Network”, International Journal of Naval Architecture and Ocean Engineering, 2021.08.07
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Ki-Su Kim, June-Beom Lee, Myung-Il Roh, Ki-Min Han, Gap-Heon Lee, "Prediction of Ocean Weather Based on Denoising AutoEncoder and Convolutional LSTM", Journal of Marine Science and Engineering, Vol. 8, No. 10, pp. 805:1-24, 2020.10.14
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Ki-Su Kim, Myung-Il Roh, "Dynamic Flooding Analysis Method for Intermediate Flooding Process of a Ship", Ocean Engineering, Vol. 218, pp. 108173.1-33, 2020.12.15
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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
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Ki-Su Kim, Myung-Il Roh, Sung-Min Lee, Han-Sung Kim, Hyunsik Ahn, "Weight-estimation Method of FPSO Topsides Considering the Work Breakdown Structure", Journal of Offshore Mechanics and Arctic Engineering, Vol. 40, No. 1, pp. 1-10, 2018.02.01
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Ki-Su Kim, Myung-Il Roh, “ISO 15016:2015-based Method for Estimating the Fuel Oil Consumption of a Ship”, Journal of Marine Science and Engineering, Vol. 8, No. 10, pp. 791:1-18, 2020.10.12
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Ki-Su Kim, Myung-Il Roh, “Review of Ship Arrangement Design Using Optimization Methods”, Journal of Computational Design and Engineering, Vol. 12, No. 1, pp. 100-121, 2024.12.12
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Kyu-Yeul Lee, Myung-Il Roh, "A Hybrid Optimization Method for Multidisciplinary Ship Design", Journal of Ship Technology Research, Vol. 47, No. 4, pp. 181-185, 2000.10.01
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Kyu-Yeul Lee, Myung-Il Roh, "An Efficient Genetic Algorithm Using Gradient Information for Ship Structural Design Optimization", Journal of Ship Technology Research, Vol. 48, No. 4, pp. 161-170, 2001.11.01
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Kyu-Yeul Lee, Myung-Il Roh, Hyuk-Su Jeong, "An Improved Genetic Algorithm for Multi-Floor Facility Layout Problems Having Inner Structure Walls and Passages", Computers & Operations Research, Vol. 32, No. 4, pp. 879-899, 2005.04.01
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Kyu-Yeul Lee, Myung-Il Roh, Seonho Cho, "Multidisciplinary Design Optimization of Mechanical Systems Using Collaborative Optimization Approach", International Journal of Vehicle Design, Vol. 25, No. 4, pp. 353-368, 2001.11.01
