| Project/Area Number |
15K16293
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Social systems engineering/Safety system
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| Research Institution | Tokyo University of Marine Science and Technology |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | 組合せ最適化 / メタ戦略 / 局所探索法 / 構築型解法 / 配送計画問題 / ロケーションルーティング問題 / 配置問題 / スケジューリング / 航空乗務員スケジューリング問題 |
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| Outline of Final Research Achievements |
Problems that appear in real world are often NP-hard, and it is difficult to find an exact optimal solution. An approximate solution is important as a practical compromise for such problems. In this research, we developed heuristic methods especially for problems of asking for order, assignment, and placement. As a heuristic method, there is a construction method, an improvement method, and a metaheuristics that seeks for a more accurate solution taking longer time by combining them. In this research, we proposed efficient construction methods and improvement methods by devising the data structure, and achieved effective metaheuristics by incorporating them.
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| Academic Significance and Societal Importance of the Research Achievements |
現代社会において現れる問題の多くは組合せ最適化問題として定式化することができる．それらの中でも順序，割当てや配置を求める問題は多い．本研究により得られたこれらの典型的な組合せ最適化問題に対する解法，およびそれを組み込んだメタ戦略が他の様々な問題に対しても高性能な解法を設計するための良い凡例となることが期待できる．
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