• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Developments of the Fundamental Theory of Discrete Optimization andFast Algorithms Based on Submodular Structures

Research Project

Project/Area Number 20310088
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Social systems engineering/Safety system
Research InstitutionKyoto University

Principal Investigator

FUJISHIGE Satoru  京都大学, 数理解析研究所, 特任教授 (10092321)

Co-Investigator(Kenkyū-buntansha) IWATA Satoru  東京大学, 大学院・情報理工学系研究科, 教授 (00263161)
MAKINO Kazuhisa  京都大学, 数理解析研究所, 准教授 (60294162)
KIJIMA Shuji  九州大学, システム情報科学研究院, 准教授 (70452307)
HIRAI Hiroshi  東京大学, 大学院・情報理工学系研究科, 講師 (20378962)
Project Period (FY) 2008 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥19,630,000 (Direct Cost: ¥15,100,000、Indirect Cost: ¥4,530,000)
Fiscal Year 2012: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2011: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2010: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2009: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2008: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
KeywordsOR / 離散最適化 / アルゴリズム / 劣モジュラ関数 / 組合せ最適化 / 数理計画 / 細合せ最滴化
Research Abstract

We have investigated large-scale discrete optimization problems by paying special attention to submodular structures which are effective to devise efficient algorithms. Specifically we have examined discrete optimization problems related to network flows, matchings, multiflows, facility location, resource allocation,graph connectivity, communication network design, and queueing networks, discrete structures arisen in dual greedy algorithms such as dual greedy polyhedra and zonotopes,discrete structures for Horn functions and stable matching problems, and so on to establish the fundamental theory and fast algorithms by integrating the knowledge and insights gained on the individual discrete structures.

Report

(7 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report   Self-evaluation Report ( PDF )
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (103 results)

All 2013 2012 2011 2010 2009 2008 Other

All Journal Article (64 results) (of which Peer Reviewed: 64 results) Presentation (38 results) (of which Invited: 7 results) Book (1 results)

  • [Journal Article] A note on polylinking flow networks2013

    • Author(s)
      S.Fujishige
    • Journal Title

      Mathematical Programming, Ser.A

      Volume: Vol.137 Issue: 1-2 Pages: 601-607

    • DOI

      10.1007/s10107-011-0502-y

    • NAID

      120005474461

    • Related Report
      2012 Annual Research Report 2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Independent arborescences in directed graphs2013

    • Author(s)
      A. Frank, S. Fujishige, N. Kamiyama, and N. Katoh
    • Journal Title

      Discrete Mathematics

      Volume: Vol.313 Pages: 453-459

    • Related Report
      2012 Annual Research Report 2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Finding 2-factors closer to TSP tours in cubic graphs2013

    • Author(s)
      S. Boyd, S. Iwata, and K. Takazawa
    • Journal Title

      SIAM Journal on Discrete Mathematics

      Volume: Vol.27 Issue: 2 Pages: 918-939

    • DOI

      10.1137/110843514

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Approximating max-min weighted T-joins2013

    • Author(s)
      S. Iwata and R. Ravi
    • Journal Title

      Operations Research Letters

      Volume: Vol.41 Issue: 4 Pages: 321-324

    • DOI

      10.1016/j.orl.2013.03.004

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] The maximum multiflow problems with bounded fractionality2013

    • Author(s)
      H. Hirai
    • Journal Title

      Mathematics of Operations Research

      Volume: 38

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The root location problem for arc-disjoint arborescences2012

    • Author(s)
      S.Fujishige and N. Kamiyama
    • Journal Title

      Discrete Applied Mathematics

      Volume: Vol.160 Issue: 13-14 Pages: 1964-1970

    • DOI

      10.1016/j.dam.2012.04.013

    • Related Report
      2012 Final Research Report 2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On revealed preference and indivisibilities2012

    • Author(s)
      S. Fujishige and Z. Yang
    • Journal Title

      Modern Economy

      Volume: Vol.3 Issue: 06 Pages: 752-758

    • DOI

      10.4236/me.2012.36096

    • Related Report
      2012 Annual Research Report 2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Lattice polyhedra and submodular flows2012

    • Author(s)
      S. Fujishige and B. Peis
    • Journal Title

      Japan Journal of Industrial and Applied Mathematics

      Volume: Vo.29 Issue: 3 Pages: 441-451

    • DOI

      10.1007/s13160-012-0084-y

    • NAID

      10031126876

    • Related Report
      2012 Annual Research Report 2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] A flow model based onpolylinking systems2012

    • Author(s)
      M .X .Goemans, S .Iwata, and R .Zenklusen
    • Journal Title

      Mathematical Programming

      Volume: Vol.135 Issue: 1-2 Pages: 1-23

    • DOI

      10.1007/s10107-011-0446-2

    • Related Report
      2012 Final Research Report 2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Computational geometric approach to submodular function minimization for multiclass queueing systems2012

    • Author(s)
      T. Itoko and S. Iwata
    • Journal Title

      Japan Journal of Industrial and Applied Mathematics

      Volume: Vol.29 Issue: 3 Pages: 453-468

    • DOI

      10.1007/s13160-012-0074-0

    • NAID

      10031126877

    • Related Report
      2012 Annual Research Report 2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Computing Knapsack solutions with cardinality robustness2012

    • Author(s)
      N. Kakimura, K. Makino, and K. Seimi
    • Journal Title

      Japan Journal of Industrial and Applied Mathematics

      Volume: Vol.29 Issue: 3 Pages: 469-483

    • DOI

      10.1007/s13160-012-0075-z

    • NAID

      10031126878

    • Related Report
      2012 Annual Research Report 2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] On randomized approximation for finding a level ideal of a poset and the generalized median stable matchings2012

    • Author(s)
      S. Kijima and T. Nemoto
    • Journal Title

      Mathematics of Operations Research

      Volume: Vol.37 Issue: 2 Pages: 356-371

    • DOI

      10.1287/moor.1110.0526

    • Related Report
      2012 Annual Research Report 2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] On duality andfractionality of multicommodity flows indirected networks.2011

    • Author(s)
      H.Hirai and S. Koichi
    • Journal Title

      Discrete Optimization

      Volume: Vol.8 Pages: 428-445

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] A submodular function minimization algorithm based on the minimum-norm base2011

    • Author(s)
      S . Fujishige and S . Isotani
    • Journal Title

      Pacific Journal of Optimization

      Volume: Vol.7 Pages: 3-17

    • URL

      http://www.ybook.co.jp/online2/pjov7-1.html

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Online linear optimization over permutations2011

    • Author(s)
      S.Yasutake, K.Hatano, S. Kijima, E.Takimoto and M. Takeda
    • Journal Title

      Lecture Notes in Computer Science

      Volume: Vol.7074 Pages: 534-543

    • DOI

      10.1007/978-3-642-25591-5_55

    • NAID

      120006654516

    • ISBN
      9783642255908, 9783642255915
    • Related Report
      2012 Final Research Report 2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A submodular function minimization algorithm based on the minimum-norm base2011

    • Author(s)
      S. Fujishige and S. Isotani
    • Journal Title

      Pacific Journal of Optimization

      Volume: 7

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A submodular function minimization algorithm based on the minimum-normbase2011

    • Author(s)
      S.Fujishige, S.Isotani
    • Journal Title

      Pacific Journal of Optimization

      Volume: 7 Pages: 3-17

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Strongly polynomial and fully combinatorial algorithms for bisubmodular function minimization2010

    • Author(s)
      S . T . McCormick and S . Fujishige
    • Journal Title

      Mathematical Programming

      Volume: Vol.122 Pages: 87-120

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Polynomial time approximate or perfect samplers for discretized Dirichlet distribution2010

    • Author(s)
      T. Matsui, M.Motoki, N.Kamatani, and S. Kijima
    • Journal Title

      Japan Journal of Industrial and Applied Mathematics

      Volume: Vol.27 Issue: 1 Pages: 91-123

    • DOI

      10.1007/s13160-010-0002-0

    • NAID

      10027314567

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] A note on multiflow locking theorem2010

    • Author(s)
      H.Hirai
    • Journal Title

      Journal of the Operations Research Society of Japan

      Volume: Vol.53 Pages: 149-156

    • NAID

      110007641869

    • URL

      http://www.orsj.or.jp/~archive/pdf/e_mag/53-2-149-156

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] A note on disjoint arborescences2010

    • Author(s)
      S . Fujishige
    • Journal Title

      Combinatorica

      Volume: Vol.30 Issue: 2 Pages: 247-252

    • DOI

      10.1007/s00493-010-2518-y

    • NAID

      120002561284

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] On the Boolean connectivity problem for Horn relations2010

    • Author(s)
      K. Makino, S.Tamaki, and M. Yamamoto
    • Journal Title

      Discrete Applied Mathematics

      Volume: Vol.158 Issue: 18 Pages: 2024-2030

    • DOI

      10.1016/j.dam.2010.08.019

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] On the Boolean connectivity problem for Horn relations.2010

    • Author(s)
      K.Makino, S.Tamaki, M.Yamamoto
    • Journal Title

      Discrete Applied Mathematics 158(18)

      Pages: 2024-2030

    • Related Report
      2010 Self-evaluation Report
    • Peer Reviewed
  • [Journal Article] Strongly polynomial and fully combinatorial algorithms for bisubmodular function minimization.2010

    • Author(s)
      S.T.McCormick, S.Fujishige
    • Journal Title

      Mathematical Programming, Ser.A 122

      Pages: 87-120

    • Related Report
      2010 Self-evaluation Report
    • Peer Reviewed
  • [Journal Article] Polynomial time approximate or perfect samplers for discretized Dirichlet distribution.2010

    • Author(s)
      T.Matsui, M.Motoki, N.Kamatani, S.Kijima
    • Journal Title

      Japan Journal of Industrial and Applied Mathematics. 27-1

      Pages: 91-123

    • NAID

      10027314567

    • Related Report
      2010 Self-evaluation Report
    • Peer Reviewed
  • [Journal Article] A note on disjoint arborescences2010

    • Author(s)
      S.Fujishige
    • Journal Title

      Combinatorica

      Volume: 30 Pages: 247-252

    • NAID

      120002561284

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On the Boolean connectivity problem for Horn relations2010

    • Author(s)
      K.Makino, S.Tamaki, M.Yamamoto
    • Journal Title

      Discrete Applied Mathematics

      Volume: 158 Pages: 2024-2030

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Polynomial time approximate or perfect samplers for discretized Dirichlet distribution2010

    • Author(s)
      T.Matsui, M.Motoki, N.Kamatani, S.Kijima
    • Journal Title

      Japan Journal of Industrial and Applied Mathematics

      Volume: 27 Pages: 91-123

    • NAID

      10027314567

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A note on multiflow locking theorem2010

    • Author(s)
      H.Hirai
    • Journal Title

      Journal of Operations Research Society of Japan

      Volume: 53 Pages: 149-156

    • NAID

      110007641869

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Strongly polynomial and fully combinatorial algorithms for bisubmodular function minimization2010

    • Author(s)
      S.T.McCormick, S.Fujishige
    • Journal Title

      Mathematical Programming 122

      Pages: 87-120

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A note on multiflow locking theorem2010

    • Author(s)
      H.Hirai
    • Journal Title

      Journal of the Operations Reseach Society of Japan (掲載確定)

    • NAID

      110007641869

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A linear-time algorithm to find a pair of arc-disjoint spanning in-arborescence and out-arborescence in a directed acyclic graph2009

    • Author(s)
      K.Berczi, S.Fujishige, and N.Kamiyama
    • Journal Title

      Information Processing Letters

      Volume: Vol.109 Issue: 23-24 Pages: 1227-1231

    • DOI

      10.1016/j.ipl.2009.09.004

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] A structure theory for the parametric submodular intersection problem2009

    • Author(s)
      S . Fujishige and K . Nagano
    • Journal Title

      Mathematics of Operations Research

      Volume: Vol.34 Issue: 3 Pages: 513-521

    • DOI

      10.1287/moor.1090.0395

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Minimizing continuous extensions of discrete convex functions with linear inequality constraints2009

    • Author(s)
      S. Fujishige, T. Hayashi, and K.Nagano
    • Journal Title

      SIAM Journal on Optimization

      Volume: Vol.20 Issue: 2 Pages: 856-867

    • DOI

      10.1137/080717675

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Submodularfunction minimization under covering constraints, Proceedings of the 50th Annual Symposium on Foundations ofComputer Science (FOCS 2009)2009

    • Author(s)
      S.Iwata and K.Nagano
    • Journal Title

      IEEE

      Pages: 671-680

    • DOI

      10.1109/focs.2009.31

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Minimum transversals in posi-modular systems2009

    • Author(s)
      M. Sakashita, K. Makino, H. Nagamochi,and S. Fujishige
    • Journal Title

      SIAM Journal on Discrete Mathematics

      Volume: Vol.23 Issue: 2 Pages: 858-871

    • DOI

      10.1137/060663970

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Finding a level ideal of a poset2009

    • Author(s)
      S.Kijima and T. Nemoto
    • Journal Title

      Lecture Notes in Computer Science

      Volume: Vol.5609 Pages: 317-327

    • DOI

      10.1007/978-3-642-02882-3_32

    • ISBN
      9783642028816, 9783642028823
    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Zonotopes and the LP-Newton method2009

    • Author(s)
      S. Fujishige, T. Hayashi, K.Yamashita, and U.Zimmermann
    • Journal Title

      Optimization and Engineering

      Volume: Vol.10 Issue: 2 Pages: 193-205

    • DOI

      10.1007/s11081-008-9067-x

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Minimum transversals in posi-modular systems.2009

    • Author(s)
      M.Sakashita, K.Makino, H.Nagamochi, S.Fujishige
    • Journal Title

      SIAM Journal on Discrete Mathematics 23

      Pages: 858-871

    • Related Report
      2010 Self-evaluation Report
    • Peer Reviewed
  • [Journal Article] Zonotopes and the LP-Newton method.2009

    • Author(s)
      S.Fujishige, T.Hayashi, K.Yamashita, U.Zimmermann
    • Journal Title

      Optimization and Engineering 10

      Pages: 193-205

    • Related Report
      2010 Self-evaluation Report
    • Peer Reviewed
  • [Journal Article] A linear-time algorithm to find a pair of arc-disjoint spanning in-arborescence and out-arborescence in a directed acyclic graph2009

    • Author(s)
      K.Berczi, S.Fujishige, N.Kamiyama
    • Journal Title

      Information Processing Letters 109

      Pages: 1227-1231

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A structure theory for the parametric submodular intersection problem2009

    • Author(s)
      S.Fujishige, K.Nagano
    • Journal Title

      Mathematics of Operations Research 34

      Pages: 513-521

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Minimizing continuous extensions of discrete convex functions with linear inequality constraints2009

    • Author(s)
      S.Fujishige, T.Hayashi, K.Nagano
    • Journal Title

      SIAM Journal on Optimization 20

      Pages: 856-867

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Submodular function minimization under covering constraints2009

    • Author(s)
      S.Iwata, K.Nagano
    • Journal Title

      Proceedings of the 50th Annual Symposium on Foundations of Computer Science (FOCS 2009), IEEE

      Pages: 671-680

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Minimum transversals in posi-modular systems2009

    • Author(s)
      M.Sakashita, K.Makino, H.Nagamochi, S.Fujishige
    • Journal Title

      SIAM Journal on Discrete Mathematics 23

      Pages: 858-871

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On the readability of monotone Boolean formulae2009

    • Author(s)
      K.M.Elbassioni, K.Makino, I.Rauf
    • Journal Title

      Proceedings of COCOON 2009

      Pages: 496-505

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Finding a level ideal of a poset2009

    • Author(s)
      S.Kijima, T.Nemoto
    • Journal Title

      Proceedings of 15th International Computing and Combinatorics Conference (COCOON 2009)

      Pages: 317-327

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Zonotopes and the LP-Newton method2009

    • Author(s)
      S. Fujishige, T. Hayashi, K. Yamashita, U. Zimmermann
    • Journal Title

      Optimization and Engineering (印刷中)(掲載確定)

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Recent results on well-balanced orientation2008

    • Author(s)
      A. Bernath, S. Iwata, T. Kiraly, Z. Kiraly, and Z. Szigeti
    • Journal Title

      Discrete Optimization

      Volume: Vol.5 Issue: 4 Pages: 663-676

    • DOI

      10.1016/j.disopt.2008.03.001

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] The independent even factor problem2008

    • Author(s)
      S. Iwata and K. Takazawa
    • Journal Title

      SIAM Journal on Discrete Mathematics

      Volume: Vol.22 Issue: 4 Pages: 1411-1427

    • DOI

      10.1137/060657066

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Minimum Cost Source Location Problems with Flow Requirements2008

    • Author(s)
      M. Sakashita, K. Makino, and S.Fujishige
    • Journal Title

      Algorithmica

      Volume: Vol.50 Issue: 4 Pages: 555-583

    • DOI

      10.1007/s00453-007-9012-y

    • NAID

      110002545917

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Minimizing a monotone concave function with laminar covering constraints2008

    • Author(s)
      M.Sakashita, K.Makino, and S.Fujishige
    • Journal Title

      Discrete Applied Mathematics

      Volume: Vol.156 Issue: 11 Pages: 2004-2019

    • DOI

      10.1016/j.dam.2007.04.016

    • NAID

      110002811978

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Randomized approximation scheme and perfect sampler for closed Jackson networks with multiple servers2008

    • Author(s)
      S.Kijima and T.Matsui
    • Journal Title

      Annals of Operations Research

      Volume: Vol.162 Issue: 1 Pages: 35-55

    • DOI

      10.1007/s10479-008-0317-2

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] The independent even factor problem.2008

    • Author(s)
      S.Iwata, K.Takazawa
    • Journal Title

      SIAM Journal on Discrete Mathematics 22

      Pages: 1411-1427

    • Related Report
      2010 Self-evaluation Report
    • Peer Reviewed
  • [Journal Article] Recent results on well-balanced orientation2008

    • Author(s)
      A. Bernath, S. Iwata, T. Kiraly, Z. Kiraly, Z. Szigeti
    • Journal Title

      Discrete Optimization 5

      Pages: 663-676

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The independent even factor problem2008

    • Author(s)
      S. Iwata, K. Takazawa
    • Journal Title

      SIAM Journal on Discrete Mathematics 22

      Pages: 1411-1427

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Minimum Cost Source Location Problems with Flow Requirements2008

    • Author(s)
      M. Sakashita, K. Makino, S. Fujishige
    • Journal Title

      Algorithmica 50

      Pages: 555-583

    • NAID

      110002545917

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Minimizing a monotone concave function with laminar covering constraints2008

    • Author(s)
      M. Sakashita, K. Makino, S. Fujishige
    • Journal Title

      Discrete Applied Mathematics 156

      Pages: 2004-2019

    • NAID

      110002811978

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Randomized approximation scheme and perfect sampler for closed Jackson networks with multiple servers2008

    • Author(s)
      S. Kijima, T. Matsui
    • Journal Title

      Annals of Operations Research 162

      Pages: 35-55

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The maximum multiflow problems with bounded fractionality

    • Author(s)
      H. Hirai
    • Journal Title

      Mathematics of Operations Research

      Volume: (印刷中)

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] A flow model based on polylinking systems.

    • Author(s)
      M.X.Goemans, S.Iwata, R.Zenklusen
    • Journal Title

      Mathematical Programming, Ser.A to appear.

    • Related Report
      2010 Self-evaluation Report
    • Peer Reviewed
  • [Journal Article] On duality and fractionality of multicommodity flows in directed networks.

    • Author(s)
      H.Hirai, S.Koichi
    • Journal Title

      Discrete Optimization to appear.

    • Related Report
      2010 Self-evaluation Report
    • Peer Reviewed
  • [Journal Article] A flow model based on polylinking systems

    • Author(s)
      M.X.Goemans, S.Iwata, R.Zenklusen
    • Journal Title

      Mathematical Programming

      Volume: (掲載確定)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] On duality and fractionality of multicommodity flows in directed networks

    • Author(s)
      H.Hirai, S.Koichi
    • Journal Title

      Discrete Optimization

      Volume: (掲載確定)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] Sparse Linear Complementarity Problems2013

    • Author(s)
      H. Sumita, N. Kakimura, and K. Makino
    • Organizer
      8th International Conference on Algorithms and Complexity
    • Place of Presentation
      Barcelona, Spain
    • Related Report
      2012 Annual Research Report
  • [Presentation] Submodularity and discrete convexity, 招待講演2012

    • Author(s)
      S . Fujishige
    • Organizer
      4th Workshop on Discrete Optimization in Machine Learning (DISCML), NIPS2012
    • Place of Presentation
      Nevada (US)
    • Year and Date
      2012-12-07
    • Related Report
      2012 Final Research Report
  • [Presentation] Discrete convexity and polynomial solvability in minimum 0-extension problems, 招待講演2012

    • Author(s)
      H. Hirai
    • Organizer
      Workshop on Discrete Geometric Analysis
    • Place of Presentation
      Kyoto
    • Related Report
      2012 Final Research Report
  • [Presentation] Computing Knapsack solutions with cardinality robustness2012

    • Author(s)
      N. Kakimura, K. Makino, and K. Seimi
    • Organizer
      21st International Symposium on Mathematical Programming (ISMP)
    • Place of Presentation
      TU Berlin (Germany)
    • Related Report
      2012 Final Research Report
  • [Presentation] Efficient randomized rounding in permutahedron2012

    • Author(s)
      S. Kijima
    • Organizer
      21st International Symposium on Mathematical Programming (ISMP)
    • Place of Presentation
      TU Berlin (Germany)
    • Related Report
      2012 Final Research Report
  • [Presentation] Pfaffian orientation, symmetric matrices, and linear programming, 招待講演2012

    • Author(s)
      S. Iwata and N. Kakimura
    • Organizer
      Conference on Graph Theory
    • Place of Presentation
      Georgia Tech., Atlanta (US)
    • Related Report
      2012 Final Research Report
  • [Presentation] Dual consistency of systems of linear inequalities and cardinality constrained polytopes, 招待講演2012

    • Author(s)
      S. Fujishige and J. Maβberg
    • Organizer
      Workshop on Modern Aspect of Submodularity
    • Place of Presentation
      Georgia Tech., Atlanta (US)
    • Related Report
      2012 Final Research Report
  • [Presentation] Submodularity and Discrete Convexity2012

    • Author(s)
      S. Fujishige
    • Organizer
      4th Workshop on Discrete Optimization in Machine Learning
    • Place of Presentation
      Lake Tahoe, Nevada, US
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] 劣モジュラ構造と離散最適化2012

    • Author(s)
      藤重 悟
    • Organizer
      平成24年度 文部科学省  数学・数理科学と他分野・産業との連携研究,ワークショップ 「離散構造と最適化:展開と連携」
    • Place of Presentation
      九州大学マス・フォア・インダストリ研究所
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] Efficient randomized rounding in permutahedron2012

    • Author(s)
      S. Kijima
    • Organizer
      21st International Symposium on Mathematical Programming
    • Place of Presentation
      Berlin, Germany
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] Discrete convexity and polynomial solvability in minimum 0-extension problems2012

    • Author(s)
      H. Hirai
    • Organizer
      Workshop on Discrete Geometric Analysis
    • Place of Presentation
      RIMS, Kyoto Univ.
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] Computing Knapsack Solutions with Cardinality Robustness2012

    • Author(s)
      N. Kakimura, K. Makino, and K. Seimi
    • Organizer
      21th International Symposium on Mathematical Programming
    • Place of Presentation
      Berlin, Germany
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] Pfaffian Orientation, Symmetric Matrices, and Linear Programming2012

    • Author(s)
      S. Iwata
    • Organizer
      Conference on Graph Theory
    • Place of Presentation
      Georgia 工科大学(米国)
    • Related Report
      2011 Annual Research Report
    • Invited
  • [Presentation] Finding 2-factors covering 3- and 4-edge cuts in bridgeless cubic graph .2011

    • Author(s)
      S. Boyd, S. Iwata, and K. Takazawa
    • Organizer
      Joint Mathematics Meetings
    • Place of Presentation
      New Orleans (US)
    • Year and Date
      2011-01-07
    • Related Report
      2012 Final Research Report
  • [Presentation] Finding 2-factors covering 3- and 4-edge cuts in bridgeless cubic graphs.2011

    • Author(s)
      S.Boyd, S.Iwata, K.Takazawa
    • Organizer
      Joint Mathematics Meetings
    • Place of Presentation
      New Orleans
    • Year and Date
      2011-01-07
    • Related Report
      2010 Self-evaluation Report
  • [Presentation] Finding 2-factors covering 3- and 4-edge cuts in bridgeless cubic graphs2011

    • Author(s)
      S.Boyd, S.Iwata, K,Takazawa
    • Organizer
      Joint Mathematics Meetings
    • Place of Presentation
      New Orleans, USA
    • Year and Date
      2011-01-07
    • Related Report
      2010 Annual Research Report
  • [Presentation] Submodular optimization and approximation algorithms, 招待講演2011

    • Author(s)
      S. Iwata
    • Organizer
      The Fifth Sino-Japanese Optimization Meeting
    • Place of Presentation
      北京(中国)
    • Related Report
      2012 Final Research Report
  • [Presentation] Submodular Optimization and Approximation Algorithms2011

    • Author(s)
      S. Iwata
    • Organizer
      The Fifth Sino-Japanese Optimization Meeting
    • Place of Presentation
      北京(中国)
    • Related Report
      2011 Annual Research Report
    • Invited
  • [Presentation] Computing Knapsack Solutions with Cardinality Robustness2011

    • Author(s)
      N. Kakimura, K. Makino, and K. Seimi
    • Organizer
      22nd International Symposium on Algorithms and Computation
    • Place of Presentation
      横浜
    • Related Report
      2011 Annual Research Report
  • [Presentation] Derandomizing HSSW Algorithm for 3-SAT2011

    • Author(s)
      K. Makino, S. Tamaki, and M. Yamamoto
    • Organizer
      17th Annual International Computing and Combinatorics Conference
    • Place of Presentation
      Dallas, Texas, USA
    • Related Report
      2011 Annual Research Report
  • [Presentation] Computational experiments on perfect sampling of contingency tables.2010

    • Author(s)
      R.Nakatsubo, S.Kijima, T.Matsui
    • Organizer
      The 3rd Annual Meeting of the Asian Association for Algorithms and Computation (AAAC 2010)
    • Place of Presentation
      Pohang, Korea
    • Year and Date
      2010-04-17
    • Related Report
      2010 Self-evaluation Report
  • [Presentation] Multicommodiy flow problems with bounded fractionality2010

    • Author(s)
      平井広志
    • Organizer
      日本応用数理学会研究部会連合発表会
    • Place of Presentation
      筑波大学
    • Year and Date
      2010-03-08
    • Related Report
      2009 Annual Research Report
  • [Presentation] Submodular functions: optimization and approximation, 招待講演2010

    • Author(s)
      S. Iwata
    • Organizer
      ICM
    • Place of Presentation
      Hyderabad (India)
    • Related Report
      2012 Final Research Report
  • [Presentation] A pumping algorithm for ergodic stochastic mean payoff games with perfect information.2010

    • Author(s)
      E. Boros, K. M. Elbassioni, V. Gurvich, and K. Makino
    • Organizer
      IPCO 2010
    • Place of Presentation
      Lausanne (Switzerland)
    • Related Report
      2012 Final Research Report
  • [Presentation] Computational experiments on perfect sampling of contingency tables2010

    • Author(s)
      R. Nakatsubo, S. Kijima, T. Matsui
    • Organizer
      The 3rd Annual Meeting of the Asian Association for Algorithms and Computation (AAAC 2010)
    • Place of Presentation
      Pohang (Korea)
    • Related Report
      2012 Final Research Report
  • [Presentation] A pumping algorithm for ergodic stochastic mean payoff games with perfect information.2010

    • Author(s)
      E.Boros, K.M.Elbassioni, V.Gurvich, K.Makino
    • Organizer
      IPCO 2010.
    • Place of Presentation
      Lausanne (Switzerland)
    • Related Report
      2010 Self-evaluation Report
  • [Presentation] Pumping algorithm for ergodic stochastic mean payoff games with perfect information2010

    • Author(s)
      E.Boros, K.M.Elbassioni, V.Gurvich, K.Makino
    • Organizer
      The 14^<th> Conference on Integer Programming and Combinatorial Optmization (IPCO)
    • Place of Presentation
      Lausanne, Switzerland
    • Related Report
      2010 Annual Research Report
  • [Presentation] Computational experiments on perfect sampling of contingency tables2010

    • Author(s)
      R.Nakatsubo, S.Kijima, T.Matsui
    • Organizer
      The 3rd Annual Meeting of the Asian Association for Algorithms and Computation (AAAC 2010)
    • Place of Presentation
      Pohang, Korea
    • Related Report
      2010 Annual Research Report
  • [Presentation] 対数優モジュラ分布からのサンプリング2009

    • Author(s)
      来嶋秀治
    • Organizer
      日本応用数理学会 2009年度年会
    • Place of Presentation
      大阪大学豊中キャンパス
    • Year and Date
      2009-09-28
    • Related Report
      2009 Annual Research Report
  • [Presentation] A simple combinatorial algorithm for submodular function minimization2009

    • Author(s)
      S. Iwata and J. Orlin
    • Organizer
      The 20th AnnualACM-SIAM Symposium on Discrete Algorithms
    • Place of Presentation
      New York (US)
    • Related Report
      2012 Final Research Report
  • [Presentation] On the readability of monotone Boolean formulae2009

    • Author(s)
      K.M.Elbassioni, K.Makino, I.Rauf
    • Organizer
      COCOON 2009. Conference Center Niagara Falls
    • Place of Presentation
      (USA)
    • Related Report
      2010 Self-evaluation Report
  • [Presentation] マルコフ連鎖の収束時間とMCMC法2008

    • Author(s)
      来嶋秀治
    • Organizer
      日本オペレーションズリサーチ学会「待ち行列」研究部会 第209回研究会
    • Place of Presentation
      東京工業大学
    • Year and Date
      2008-11-15
    • Related Report
      2010 Self-evaluation Report
  • [Presentation] マルコフ連鎖の収束時間とMCMC法2008

    • Author(s)
      来嶋秀治
    • Organizer
      日本オペレーションズリサーチ学会「待ち行列」研究部会第209回研究会
    • Place of Presentation
      東京工業大学
    • Year and Date
      2008-11-15
    • Related Report
      2008 Annual Research Report
  • [Presentation] 一般化メディアン安定結婚問題に対する乱択近似アルゴリズム2008

    • Author(s)
      来嶋秀治,根本俊男
    • Organizer
      日本オペレーションズリサーチ学会2008年秋季研究発表会
    • Place of Presentation
      札幌コンベンションセンター
    • Year and Date
      2008-09-10
    • Related Report
      2010 Self-evaluation Report
  • [Presentation] 一般化メディアン安定結婚問題に対する乱択近似アルゴリズム2008

    • Author(s)
      来嶋秀治, 根本俊男
    • Organizer
      日本オペレーションズ・リサーチ学会2008年秋季研究発表会
    • Place of Presentation
      札幌コンベンションセンター
    • Year and Date
      2008-09-10
    • Related Report
      2008 Annual Research Report
  • [Presentation] A submodular function minimization algorithm based on the minimum-norm base, 招待 講 演2008

    • Author(s)
      S.Fujishige
    • Organizer
      Fourth Sino-Japanese Optimization Meeting
    • Place of Presentation
      台南(台湾)
    • Related Report
      2012 Final Research Report
  • [Presentation] A submodular function minimization algorithm based on the minimum-norm base2008

    • Author(s)
      S. Fujishige
    • Organizer
      Fourth Sino-Japanese Optimization Meeting
    • Place of Presentation
      Tainan, Taiwan
    • Related Report
      2008 Annual Research Report
  • [Presentation] K_3+K_3に対するメトリツク詰込み問題2008

    • Author(s)
      平井広志
    • Organizer
      日本応用数理学会2008年年度年会
    • Place of Presentation
      東京大学柏キャンパス
    • Related Report
      2008 Annual Research Report
  • [Book] Research Trends in Combinatorial Optimization (W. Cook, L. Lovasz, J. Vygen, Eds. )2009

    • Author(s)
      S. Fujishige
    • Publisher
      Springer
    • Related Report
      2008 Annual Research Report

URL: 

Published: 2008-04-01   Modified: 2019-07-29  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi