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Design of Approximation Algorithms for the Problems with Grapth Structure

Research Project

Project/Area Number 16092212
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionKyoto University

Principal Investigator

NAGAMOCHI Hiroshi  Kyoto University, 情報学研究科, 教授 (70202231)

Co-Investigator(Kenkyū-buntansha) KARUNO Yoshiyuki  京都工芸繊維大学, 工芸科学研究科, 准教授 (80252542)
UNO Yushi  大阪府立大学, 理学系研究科, 講師 (60244670)
ZHAO Liang  京都大学, 情報学研究科, 講師 (90344902)
YAMAZAKI Koichi  群馬大学, 工学研究科, 准教授 (00246662)
Project Period (FY) 2004 – 2007
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥6,900,000 (Direct Cost: ¥6,900,000)
Fiscal Year 2007: ¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 2006: ¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 2005: ¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 2004: ¥2,100,000 (Direct Cost: ¥2,100,000)
Keywordsグラフアルゴリズム / 連結度 / ネットワーク設計 / 最適化 / 配送スケジューリング / 近似アルゴリズム / パッキング / グラフ描画 / 離散最適化 / グラフ連結度 / 図形パッキング / ファイアウォール高速化 / 最長路問題 / スケジューリング / 部分木被覆 / パッキング問題 / グラフのランキング / 分枝限定法 / ミニマックス問題 / 最小カット / グラフ分割 / 機械スケジューリング
Research Abstract

通信網, 電力網, 交通網, VLSIの配線, スケジューリング問題, 地理情報システム等の多くのシステム工学的, 情報工学的諸問題に対するアルゴリズムを設計する場合には, これらを離散最適化問題として定式化することで, 問題の持つ計算の複雑さの解明や高度な数学的解法の適用が可能となる. 本研究では, グラフアルゴリズムを中心的な道具として, 離散最適化問題に対する理論保証付きアルゴリズムの開発を行うとともにパッキング問題に対しては実際に難しい例題を効率よく解くソルバーの開発を行った.

Report

(5 results)
  • 2008 Final Research Report ( PDF )
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • Research Products

    (74 results)

All 2009 2008 2007 2006 2005 2004 Other

All Journal Article (63 results) (of which Peer Reviewed: 18 results) Presentation (9 results) Book (2 results)

  • [Journal Article] Scheduling capacitated one-way vehicles on paths with deadlines2009

    • Author(s)
      J. Uchida, Y. Karuno, H. Nagamochi
    • Journal Title

      SICE Journal of Control, Measurement, and System Integration Vol. 2, No. 1

      Pages: 20-26

    • NAID

      10031152616

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Performance analysis of a collision detection algorithm of spheres based on slab partitioning2008

    • Author(s)
      T. Imamichi, H. Nagamochi
    • Journal Title

      IEICE Transactions 91-A (9)

      Pages: 2308-2313

    • NAID

      10026851353

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Worst case analysis for pickup and delivery problems with transfer2008

    • Author(s)
      Y. Nakao, H. Nagamochi
    • Journal Title

      IEICE Transactions 91-A(9)

      Pages: 2328-2334

    • NAID

      10026851402

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Approximating a vehicle scheduling problem with time windows and handling times2008

    • Author(s)
      H. Nagamochi, T. Ohnishi
    • Journal Title

      Theoretical Computer Science 393 (1-3)

      Pages: 133-146

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Approximating minimum cost multigraphs of specified edge-connectivity under degree bounds2007

    • Author(s)
      T. Fukunaga, H. Nagamochi
    • Journal Title

      J. Operations Research Society of Japan vol. 50, no. 4

      Pages: 339-349

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Computing a minimum cut in a graph with dynamic edges incident to a designated vertex2007

    • Author(s)
      H. Nagamochi
    • Journal Title

      Inst. Electron. Inform. Comm. Eng. Trans. Fundamentals vol.E90-D, no.2

      Pages: 428-431

    • NAID

      110007519486

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Approximating minimum cost multigraphs of specified edge-connectivity under a degree constraint2007

    • Author(s)
      T. Fukuanga
    • Journal Title

      J. Operations Research Society of Japan 50

      Pages: 339-349

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Computing a minimum cut in a graph with dynamic edges incident to a designated vertex2007

    • Author(s)
      H. Nagamochi
    • Journal Title

      Inst. Electron. Inform. Comm. Eng. Trans. Fund. E90-D

      Pages: 428-431

    • NAID

      110007519486

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Bi-criteria food packing by dynamic programming2007

    • Author(s)
      Y. Karuno
    • Journal Title

      J. Operations Research Society of Japan 50

      Pages: 376-389

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Relationships between the class of unit grid intersection graphs and other classes of bipartite2007

    • Author(s)
      Y. Otachi
    • Journal Title

      Discrete Applied Mathematics 155

      Pages: 2383-2390

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Minimum cost source location problem with local 3-vertex-connectivity reauirements2007

    • Author(s)
      T. Ishii
    • Journal Title

      Theoretical Computer Science A 372

      Pages: 81-93

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Web structure mining by isolated cliques2007

    • Author(s)
      Y. Uno
    • Journal Title

      IEICE Transactions on Information and Systems E90-D

      Pages: 1998-2006

    • NAID

      110007538596

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Approximation algorithms for multicast routing in a network with multi-sources2007

    • Author(s)
      E. Morsy
    • Journal Title

      Inst. Electron. Inform. Comm. Eng. Trans. Fund. E90-A

      Pages: 900-906

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A DP-based heuristic algorithm for the discrete split delivery vehicle routing problem2007

    • Author(s)
      Y. Nakao
    • Journal Title

      J. Advanced Mechanical Design, Systems, and Manufacturing 1

      Pages: 217-226

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Drawing c-planar biconnected clustered graphs2007

    • Author(s)
      H.Nagamochi
    • Journal Title

      Discrete Applied Mathematics 155

      Pages: 1155-1174

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Minimum cost source location problem with local 3-vertex-connectivity requirements2007

    • Author(s)
      T.Ishii
    • Journal Title

      Theoretical Computer Science 372・1

      Pages: 81-93

    • Related Report
      2006 Annual Research Report
  • [Journal Article] An approximation algorithm for dissecting a rectangle into rectangles with specified areas2007

    • Author(s)
      H.Nagamochi
    • Journal Title

      Discrete Applied Mathematics 155

      Pages: 523-537

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Packing soft rectangles2006

    • Author(s)
      H. Nagamochi
    • Journal Title

      International Journal of Foundations of Computer Science vol. 17, no. 5

      Pages: 1165-1178

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Sparse connectivity certificates via MA orderings in graphs2006

    • Author(s)
      H. Nagamochi
    • Journal Title

      Discrete Applied Mathematics vol. 154

      Pages: 2411-2417

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] A fast edge-splitting algorithm in edge-weighted graphs2006

    • Author(s)
      H. Nagamochi
    • Journal Title

      Inst. Electron. Inform. Comm. Eng. Trans. Fundamentals vol. E89-A, no. 5

      Pages: 1263-1268

    • NAID

      110007502839

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Increasing the edge-connectivity by contracting a vertex subset2006

    • Author(s)
      H. Nagamochi
    • Journal Title

      IEICE Transactions on Information and Systems vol. E89-D, no. 2

      Pages: 744-750

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Straight-line drawing algorithms for hierarchical graphs, and clustered graphs2006

    • Author(s)
      P.Eades
    • Journal Title

      Algorithmica 44・1

      Pages: 1-32

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Packing soft rectangles2006

    • Author(s)
      H.Nagamochi
    • Journal Title

      International Journal of Foundations of Computer Science 17・5

      Pages: 1165-1178

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Two equivalent measures on weighted hypergraphs2006

    • Author(s)
      H.Ito
    • Journal Title

      Discrete Applied Mathematics 154

      Pages: 2330-2334

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Augmenting forests to meet odd diameter requirements2006

    • Author(s)
      T.Ishii
    • Journal Title

      Discrete Optimization 3・2

      Pages: 154-164

    • Related Report
      2006 Annual Research Report
  • [Journal Article] A dynamic programming approach for a food packing problem (in Japanese)2006

    • Author(s)
      Y.Karuno
    • Journal Title

      Transactions of the Japan Society of Mechanical Engineers, Series C 72・716

      Pages: 1390-1397

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Straight-line drawing algorithms for hierarchical graphs and clustered graphs2006

    • Author(s)
      P.Eades
    • Journal Title

      Algorithmica 44・1

      Pages: 1-32

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Augmenting a (k-1)-vertex-connected multigraph to an i-edge-connected and k-vertex-connected multigraph2006

    • Author(s)
      T.Ishii
    • Journal Title

      Algorithmica 44・3

      Pages: 257-280

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Increasing the edge-connectivity by contracting a vertex subset,2006

    • Author(s)
      H.Nagamochi
    • Journal Title

      IEICE Transactions on Information and Systems E89-D・2

      Pages: 744-750

    • Related Report
      2005 Annual Research Report
  • [Journal Article] On 2-approximation to the vertex-connectivity in graphs2005

    • Author(s)
      H.Nagamochi
    • Journal Title

      Inst.Electron.Inform.Comm.Eng.Trans.Information and Systems E88-D・1

      Pages: 12-16

    • NAID

      110003214129

    • Related Report
      2005 Annual Research Report 2004 Annual Research Report
  • [Journal Article] A greedy splitting algorithm for approximating multiway partition problems2005

    • Author(s)
      L.Zhao
    • Journal Title

      Mathematical Programming 102・1

      Pages: 167-183

    • Related Report
      2005 Annual Research Report
  • [Journal Article] On computing minimum (s,t)-cuts in digraphs2005

    • Author(s)
      H.Nagamochi
    • Journal Title

      Information Processing Letters 93・5

      Pages: 231-237

    • Related Report
      2005 Annual Research Report
  • [Journal Article] On the one-sided crossing minimization in a bipartite graph with large degrees2005

    • Author(s)
      H.Nagamochi
    • Journal Title

      Theoretical Computer Science 332

      Pages: 417-446

    • Related Report
      2005 Annual Research Report
  • [Journal Article] An improved bound on the one-sided minimum crossing number in two-layered drawings2005

    • Author(s)
      H.Nagamochi
    • Journal Title

      Discrete and Computational Geometry 33・4

      Pages: 569-591

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Approximating the minmax rooted-subtree cover problem2005

    • Author(s)
      H.Nagamochi
    • Journal Title

      Electron.Inform.Comm.Eng.Trans.Fundamentals E88-A・5

      Pages: 1335-1338

    • Related Report
      2005 Annual Research Report
  • [Journal Article] タンク繰りにおける経路探索法2005

    • Author(s)
      石井利昌
    • Journal Title

      システム制御情報学会システム制御情報学会 18・6

      Pages: 213-221

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Packing unit squares in a rectangle2005

    • Author(s)
      H.Nagamochi
    • Journal Title

      The Electronic Journal of Combinatorics 12・1

    • Related Report
      2005 Annual Research Report
  • [Journal Article] A 4/3-approximation for the minimum 2-local-vertex-connectivity augmentation in a connected graph2005

    • Author(s)
      H.Nagamochi
    • Journal Title

      J.Algorithms 56

      Pages: 77-95

    • NAID

      110004027516

    • Related Report
      2005 Annual Research Report
  • [Journal Article] A robust algorithm for bisecting a triconnected graph with two resource sets2005

    • Author(s)
      H.Nagamochi
    • Journal Title

      Theoretical Computer Science A 341

      Pages: 364-378

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Scheduling vehicles on trees2005

    • Author(s)
      Y.Karuno
    • Journal Title

      Pacific Journal of Optimization 1・3

      Pages: 527-543

    • Related Report
      2005 Annual Research Report
  • [Journal Article] A deterministic algorithm for finding all minimum k-way cuts2005

    • Author(s)
      Y.Kamidoi
    • Journal Title

      電子情報通信学会技術報告 105・144

      Pages: 51-58

    • Related Report
      2005 Annual Research Report
  • [Journal Article] A greedy splitting algorithm for approximating multiway partition problems2005

    • Author(s)
      L.Zhao, H.Nagamochi, T.Ibaraki
    • Journal Title

      Mathematical Programming 102・1

      Pages: 167-183

    • Related Report
      2004 Annual Research Report
  • [Journal Article] On computing minimum (s,t)-cuts in digraphs2005

    • Author(s)
      HNagamochi
    • Journal Title

      Information Processing Letters 93・5

      Pages: 231-237

    • Related Report
      2004 Annual Research Report
  • [Journal Article] On the one-sided crossing minimization in a bipartite graph with large degrees2005

    • Author(s)
      H.Nagamochi
    • Journal Title

      Theoretical Computer Science 332・1-3

      Pages: 417-446

    • Related Report
      2004 Annual Research Report
  • [Journal Article] An approximability result of the multi-vehicle scheduling problem on a path with release and handling times2004

    • Author(s)
      Y.Karuno, H.Nagamochi
    • Journal Title

      Theoretical Computer Science A 312・2-3

      Pages: 267-280

    • Related Report
      2004 Annual Research Report
  • [Journal Article] A simple recognition of maximal planar graphs2004

    • Author(s)
      H.Nagamochi, K.Suzuki, T.Ishii
    • Journal Title

      Information Processing Letters 89・5

      Pages: 223-226

    • Related Report
      2004 Annual Research Report
  • [Journal Article] A faster 2-approximation algorithm for the minmax p--traveling salesmen problem on a tree2004

    • Author(s)
      H.Nagamochi, K.Okada
    • Journal Title

      Discrete Applied Mathematics 140・1-3

      Pages: 103-114

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Counting edge crossings in a 2-layered drawing2004

    • Author(s)
      H.Nagamochi, N.Yamada
    • Journal Title

      Information Processing Letters 91・5

      Pages: 221-225

    • Related Report
      2004 Annual Research Report
  • [Journal Article] On generalized greedy splitting algorithms for multiway partition problems2004

    • Author(s)
      L.Zhao, H.Nagamochi, T.Ibaraki
    • Journal Title

      Discrete Applied Mathematics 143・1

      Pages: 130-143

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Graph algorithms for network connectivity problems2004

    • Author(s)
      H.Nagamochi
    • Journal Title

      J.Operations Research Society of Japan 47・4

      Pages: 199-223

    • Related Report
      2004 Annual Research Report
  • [Journal Article] A DP-based heuristic algorithm for the discrete split delivery vehicle routing problem

    • Author(s)
      Y.Nakao
    • Journal Title

      Journal of Advanced Mechanical Design, Systems, and Manufacturing (掲載予定)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Approximating minimum cost multigraphs of specified edge-connectivity under degree bounds

    • Author(s)
      T.Fukunaga
    • Journal Title

      J.Operations Research Society of Japan (掲載予定)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Selective vehicle scheduling on paths with a due date involving criterion

    • Author(s)
      Y.Karuno
    • Journal Title

      Transactions of the Japan Society of Mechanical Engineers, Series C (掲載予定)

    • NAID

      110006271417

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Approximation algorithms for multicast routings in a network with multi-sources

    • Author(s)
      E.Morsy
    • Journal Title

      IEICE Transactions (掲載予定)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Approximating a generalization of metric TSP

    • Author(s)
      T.Fukunaga
    • Journal Title

      Inst.Electron.Inform.Comm.Eng.Trans.Fundamentals (掲載予定)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Generalizing the induced matching by edge capacity constraints

    • Author(s)
      T.Fukunaga
    • Journal Title

      Discrete Optimization (掲載予定)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] An improved bound on the one-sided minimum crossing number in two-layered drawings

    • Author(s)
      H.Nagamochi
    • Journal Title

      Discrete and Computational Geometry (発行予定)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Straight-line drawing algorithms for hierarchical graphs and clustered graphs

    • Author(s)
      P.Eades, Q.Feng, X.Lin, H.Nagamochi
    • Journal Title

      Algorithmica (発行予定)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Augmenting a (k-1)-vertex-connected multigraph to an /-edge-connected and k-vertex-connected multigraph

    • Author(s)
      T.Ishii, H.Nagamochi, T.Ibaraki
    • Journal Title

      Algorithmica (発行予定)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Scheduling vehicles on trees

    • Author(s)
      Y.Karuno, H.Nagamochi
    • Journal Title

      Pacific Journal or Optimization (発行予定)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 4/3-approximation for the minimum 2-local-vertex-connectivity augmentation in a connected graph

    • Author(s)
      H.Nagamochi
    • Journal Title

      J.Algorithms (発行予定)

    • NAID

      110004027516

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Approximating the minmax rooted-subtree cover problem

    • Author(s)
      H.Nagamochi
    • Journal Title

      IEICE Transactions (発行予定)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] A routing algorithm on a storage tank system (in Japanese)

    • Author(s)
      T.Ishii, H.Nagamochi, Y.Nishigaki, K.Takahashi, M.Take
    • Journal Title

      ISCIE Journal Systems (発行予定)

    • Related Report
      2004 Annual Research Report
  • [Presentation] Robust cost coloring2008

    • Author(s)
      T. Fukunaga
    • Organizer
      ACM-SIAM Symposium on Discrete Algorithms
    • Place of Presentation
      San Francisco
    • Year and Date
      2008-01-20
    • Related Report
      2007 Annual Research Report
  • [Presentation] Star-shaped drawings of planar graphs2007

    • Author(s)
      S.-H. Hong
    • Organizer
      18th Int'l Workshop on Combinatorial Algorithms
    • Place of Presentation
      Newcastle
    • Year and Date
      2007-11-05
    • Related Report
      2007 Annual Research Report
  • [Presentation] Heuristics for a scheduling problem of minimizing the number of one-way vehicles on paths with deadlines2007

    • Author(s)
      J. Uchida
    • Organizer
      SICE Annual Conference
    • Place of Presentation
      香川大学
    • Year and Date
      2007-09-17
    • Related Report
      2007 Annual Research Report
  • [Presentation] Orthogonal drawings for plane graphs with specified face areas2007

    • Author(s)
      A. Kawaguchi
    • Organizer
      The 4th Annual Conference on Theory and Applications of Models of Computation (TAMC07) Lecture Notes in Computer Science, volume 4484
    • Place of Presentation
      Shanghai, China
    • Year and Date
      2007-05-25
    • Related Report
      2008 Final Research Report
  • [Presentation] On the time-dependent shortest path problem2007

    • Author(s)
      趙亮
    • Organizer
      Chinese Academy of Science-Kyoto University Joint Workshop
    • Place of Presentation
      中国科学院・数学システム科学研究院(北京)
    • Year and Date
      2007-03-17
    • Related Report
      2007 Annual Research Report
  • [Presentation] Network design with edge-connectivity and degree constraints2006

    • Author(s)
      T. Fukunaga
    • Organizer
      Fourth Workshop on Approximation and Online Algorithms (WAOA06) Lecture Notes in Computer Science, volume 4368
    • Place of Presentation
      ETH Zurich, Zurich, Switzerland
    • Year and Date
      2006-09-14
    • Related Report
      2008 Final Research Report
  • [Presentation] An improved approximation algorithm for capacitated multicast routings in networks2006

    • Author(s)
      E. Morsy
    • Organizer
      Proc. of International Symposium on Scheduling 2006 (ISS2006)
    • Place of Presentation
      Arcadia Ichigaya, Tokyo, Japan
    • Year and Date
      2006-07-18
    • Related Report
      2008 Final Research Report
  • [Presentation] Convex drawings with non-convex boundary2006

    • Author(s)
      S. -H. Hong
    • Organizer
      The 32nd International Workshop on Graph-Theoretic Concepts in Computer Science (WG 2006) Lecture Notes in Computer Science, vol. 4271(Springer-Verlag)
    • Place of Presentation
      Bergen, Norway
    • Year and Date
      2006-06-22
    • Related Report
      2008 Final Research Report
  • [Presentation] Minimizing capacitated tree covers of graphs2005

    • Author(s)
      Y. Karuno
    • Organizer
      Third International Conference on Innovative Applications of Information Technology for the Developing World (Asian Applied Computing Conference (AACC 2005))
    • Place of Presentation
      Nepal
    • Year and Date
      2005-12-10
    • Related Report
      2008 Final Research Report
  • [Book] Algorithmic Aspects of Graph Connectivities (Encyclopedia of Mathematics and Its Applications)2008

    • Author(s)
      Hiroshi Nagamochi, Toshihide Ibaraki
    • Total Pages
      392
    • Publisher
      Cambridge University Press
    • Related Report
      2008 Final Research Report
  • [Book] Handbook of Approximation Algorithms and Metaheuristics(分担執筆)2007

    • Author(s)
      Y. Karuno
    • Total Pages
      9
    • Publisher
      Chapman & Hall/CRC, Taylor & Francis Group
    • Related Report
      2007 Annual Research Report

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Published: 2004-04-01   Modified: 2023-01-13  

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