Local Optima Approximation Scheme based on Combinatorial Local Search Algorithms
Project/Area Number |
21680001
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Research Category |
Grant-in-Aid for Young Scientists (A)
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Allocation Type | Single-year Grants |
Research Field |
Fundamental theory of informatics
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Research Institution | Kyushu University |
Principal Investigator |
ONO Hirotaka 九州大学, 経済学研究科(研究院), 准教授 (00346826)
|
Project Period (FY) |
2009-04-01 – 2013-03-31
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Project Status |
Completed (Fiscal Year 2013)
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Budget Amount *help |
¥11,440,000 (Direct Cost: ¥8,800,000、Indirect Cost: ¥2,640,000)
Fiscal Year 2012: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2011: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2010: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2009: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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Keywords | 組合せ最適化 / 局所探索 / 解再構成 / 再最適化 / 近似アルゴリズム / グラフアルゴリズム / 局所探索法 / メタ戦略 / 近傍探索 / NP困難・完全 / PLS完全 / グラフ最適化 / NP困難・完全 / PLS 完全 |
Research Abstract |
Many useful combinatorial optimization problems are known to be NP-hard, which means that these problems are difficult (or probably impossible) to find solutions guaranteed to be (near-)optimal in reasonable computational time. On the other hand, in spite of the difficulty, metaheuristics algorithms are known to find "practically" good solutions (not necessarily in reasonable computational time. In this study, we investigated local-search type meta-heuristics from the "theoretical" viewpoints. We obtain several results: (1) Design and analysis of (local-search type) approximation algorithms for graph optimization problems, (2) Computational complexity of the reconfiguration problems for graph optimization problems, (3) Computational complexity of the reoptimization of graph optimization problems.
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Report
(5 results)
Research Products
(82 results)
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[Journal Article] Base Location Problems for Base-Monotone Regions2013
Author(s)
Jinhee Chun, Takashi Horiyama, Takehiro Ito, Natsuda Kaothanthong, Hirotaka Ono, Yota Otachi, Takeshi Tokuyama, Ryuhei Uehara, Takeaki Uno
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Journal Title
7^<th> International Workshop on Algorithms and Computation
Volume: 7748
Pages: 53-64
DOI
ISBN
9783642360640, 9783642360657
Related Report
Peer Reviewed
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