World's Best Scientists 2026 revealed!
Kazuo Iwama

Kazuo Iwama

D-Index & Metrics

Computer Science

D-Index
36
Citations
5406
World Ranking
11275
National Ranking
169

Kazuo Iwama publication distribution in Computer Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Computer Science in 2026. The highlighted bar marks where Kazuo Iwama sits on this spectrum.

32–41 publications: 7 scientists 42–51 publications: 22 scientists 52–61 publications: 82 scientists 62–71 publications: 134 scientists 72–81 publications: 249 scientists 82–91 publications: 324 scientists 92–101 publications: 421 scientists 102–111 publications: 420 scientists 112–121 publications: 497 scientists 122–131 publications: 544 scientists 132–141 publications: 555 scientists 142–151 publications: 609 scientists 152–161 publications: 559 scientists 162–171 publications: 534 scientists 172–181 publications: 556 scientists 182–191 publications: 583 scientists 192–201 publications: 519 scientists 202–211 publications: 508 scientists 212–221 publications: 490 scientists 222–231 publications: 437 scientists 232–241 publications: 423 scientists 242–251 publications: 408 scientists 252–261 publications: 377 scientists 262–271 publications: 301 scientists 272–281 publications: 335 scientists 282–291 publications: 320 scientists 292–301 publications: 293 scientists 302–311 publications: 250 scientists 312–321 publications: 238 scientists 322–331 publications: 206 scientists 332–341 publications: 209 scientists 342–351 publications: 208 scientists 352–361 publications: 162 scientists 362–371 publications: 176 scientists 372–381 publications: 127 scientists 382–391 publications: 158 scientists 392–401 publications: 128 scientists 402–411 publications: 104 scientists 412–421 publications: 94 scientists 422–431 publications: 99 scientists 432–441 publications: 83 scientists 442–451 publications: 108 scientists 452–461 publications: 73 scientists 462–471 publications: 77 scientists 472–481 publications: 69 scientists 482–491 publications: 84 scientists 492–501 publications: 62 scientists 502–511 publications: 54 scientists 512–521 publications: 57 scientists 522–531 publications: 51 scientists 532–541 publications: 51 scientists 542–551 publications: 32 scientists 552–561 publications: 38 scientists 562–571 publications: 28 scientists 572–581 publications: 43 scientists 582–591 publications: 33 scientists 592–601 publications: 41 scientists 602–611 publications: 32 scientists 612–621 publications: 28 scientists 622–631 publications: 25 scientists 632–641 publications: 27 scientists 642–651 publications: 17 scientists 652–661 publications: 20 scientists 662–671 publications: 17 scientists 672–681 publications: 15 scientists 682–691 publications: 14 scientists 692–701 publications: 21 scientists 702–711 publications: 13 scientists 712–721 publications: 12 scientists 722–731 publications: 19 scientists 732–741 publications: 14 scientists 742–751 publications: 12 scientists 752–761 publications: 10 scientists 762–771 publications: 10 scientists 772–781 publications: 11 scientists 782–791 publications: 10 scientists 792–801 publications: 11 scientists 802–811 publications: 8 scientists 812–821 publications: 8 scientists 822–831 publications: 7 scientists 832–841 publications: 11 scientists 842–851 publications: 10 scientists 852–861 publications: 5 scientists 862–871 publications: 9 scientists 872–881 publications: 4 scientists 882–891 publications: 6 scientists 892–901 publications: 3 scientists 902–911 publications: 6 scientists 912–921 publications: 3 scientists 922–931 publications: 2 scientists 932–941 publications: 2 scientists 942–951 publications: 2 scientists 952–961 publications: 3 scientists 962–971 publications: 3 scientists 972–981 publications: 3 scientists 982–990 publications: 5 scientists 991+ publications: 100 scientists
32 publications 991+

This scientist: 253 publications — 63rd percentile

63% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 991 publications or more.

Kazuo Iwama D-index placement in Computer Science in 2026

The chart shows the D-index (discipline H-index) distribution of Computer Science scientists ranked by Research.com in 2026. The highlighted bar marks where Kazuo Iwama sits on this spectrum.

30–31 D-Index: 879 scientists 32–33 D-Index: 983 scientists 34–35 D-Index: 918 scientists 36–37 D-Index: 990 scientists 38–39 D-Index: 968 scientists 40–41 D-Index: 907 scientists 42–43 D-Index: 821 scientists 44–45 D-Index: 763 scientists 46–47 D-Index: 689 scientists 48–49 D-Index: 543 scientists 50–51 D-Index: 543 scientists 52–53 D-Index: 518 scientists 54–55 D-Index: 500 scientists 56–57 D-Index: 458 scientists 58–59 D-Index: 400 scientists 60–61 D-Index: 337 scientists 62–63 D-Index: 308 scientists 64–65 D-Index: 292 scientists 66–67 D-Index: 249 scientists 68–69 D-Index: 213 scientists 70–71 D-Index: 192 scientists 72–73 D-Index: 189 scientists 74–75 D-Index: 165 scientists 76–77 D-Index: 139 scientists 78–79 D-Index: 119 scientists 80–81 D-Index: 121 scientists 82–83 D-Index: 113 scientists 84–85 D-Index: 88 scientists 86–87 D-Index: 87 scientists 88–89 D-Index: 75 scientists 90–91 D-Index: 69 scientists 92–93 D-Index: 57 scientists 94–95 D-Index: 46 scientists 96–97 D-Index: 38 scientists 98–99 D-Index: 34 scientists 100–101 D-Index: 36 scientists 102–103 D-Index: 27 scientists 104–105 D-Index: 37 scientists 106–107 D-Index: 18 scientists 108–109 D-Index: 31 scientists 110–111 D-Index: 19 scientists 112–113 D-Index: 16 scientists 114–115 D-Index: 12 scientists 116–117 D-Index: 20 scientists 118–119 D-Index: 15 scientists 120–121 D-Index: 5 scientists 122–123 D-Index: 20 scientists 124–125 D-Index: 8 scientists 126–127 D-Index: 5 scientists 128–129 D-Index: 7 scientists 130 D-Index: 3 scientists 131+ D-Index: 98 scientists
30 D-Index 131+

This scientist: 36 D-Index — 23rd percentile

23% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 131 D-Index or more.

Research.com Recognitions

  • 2012 - Member of Academia Europaea

Overview

Kazuo Iwama is affiliated with Kyoto University in Japan and has contributed to various fields primarily within computer science and engineering. Their research encompasses topics related to optimization, transportation innovations, and game theory, among others.

The main fields of study for Iwama include:

  • Computer Science
  • Engineering

More specifically, their work involves subfields such as:

  • Computer Networks and Communications
  • Automotive Engineering
  • Computational Theory and Mathematics
  • Economics and Econometrics
  • Industrial and Manufacturing Engineering

The core research topics addressed in Iwama's publications cover:

  • Optimization and Search Problems
  • Transportation and Mobility Innovations
  • Game Theory and Voting Systems
  • Smart Parking Systems Research
  • Advanced Bandit Algorithms Research
  • Blockchain Technology Applications and Security
  • Sharing Economy and Platforms

Recent publications from Kazuo Iwama include:

  • "Bounded Hanoi," 2022, published in American Mathematical Monthly
  • "Marriage and Roommate," 2023, published in arXiv (Cornell University)

Frequent co-authors collaborating with Iwama are:

  • Ya-Chun Liang
  • Chung-Shou Liao
  • Kuan-Yun Lai
  • Ho-Lin Chen
  • Mike Paterson

Publications have appeared in a range of venues, including:

  • arXiv (Cornell University)
  • Theoretical Computer Science
  • Leibniz-Zentrum für Informatik (Schloss Dagstuhl)
  • American Mathematical Monthly
  • International Journal of Foundations of Computer Science

Kazuo Iwama has been recognized as a Member of Academia Europaea since 2012, reflecting an established role in the academic community.

Best Publications

  • Hard variants of stable marriage

    David F. Manlove;Robert W. Irving;Kazuo Iwama;Shuichi Miyazaki

  • Greedily Finding a Dense Subgraph

    Yuichi Asahiro;Kazuo Iwama;Hisao Tamaki;Takeshi Tokuyama

  • Transformation rules for designing CNOT-based quantum circuits

    Kazuo Iwama;Yahiko Kambayashi;Shigeru Yamashita

  • Stable Marriage with Incomplete Lists and Ties

    Kazuo Iwama;Shuichi Miyazaki;David Manlove;Yasufumi Morita

  • A Survey of the Stable Marriage Problem and Its Variants

    K. Iwama;S. Miyazaki

  • Quantum network coding

    Masahito Hayashi;Kazuo Iwama;Harumichi Nishimura;Rudy Raymond

  • Complexity of finding dense subgraphs

    Yuichi Asahiro;Refael Hassin;Kazuo Iwama

  • Improved upper bounds for 3-SAT

    Kazuo Iwama;Suguru Tamaki

  • CNF satisfiability test by counting and polynomial average time

    Kazuo Iwama

  • Random generation of test instances with controlled attributes.

    Yuichi Asahiro;Kazuo Iwama;Eiji Miyano

  • Editor's Foreword

    Unknown

  • Removable Online Knapsack Problems

    Kazuo Iwama;Shiro Taketomi

  • An Explicit Lower Bound of 5n - o(n) for Boolean Circuits

    Kazuo Iwama;Hiroki Morizumi

  • Local search algorithms for partial MAXSAT

    Byungki Cha;Kazuo Iwama;Yahiko Kambayashi;Shuichi Miyazaki

  • Approximability results for stable marriage problems with ties

    Magnús M. Halldórsson;Robert W. Irving;Kazuo Iwama;David F. Manlove

  • Adding new clauses for faster local search

    Byungki Cha;Kazuo Iwama

  • An improved exact algorithm for cubic graph TSP

    Kazuo Iwama;Takuya Nakashima

  • Performance test of local search algorithms using new types of random CNF formulas

    Byungki Cha;Kazuo Iwama

  • Tight bounds on the number of states of DFAs that are equivalent to n -state NFAs

    Kazuo Iwama;Yahiko Kambayashi;Kazuya Takaki

  • Intractability of read-once resolution

    K. Iwama;E. Miyano

  • Average-Case Competitive Analyses for Ski-Rental Problems

    Hiroshi Fujiwara;Kazuo Iwama

  • SAT-Varible Complexity of Hard Combinatorial Problems.

    Kazuo Iwama;Shuichi Miyazaki

Frequent Co-Authors

Shuichi Miyazaki
Shuichi Miyazaki University of Tsukuba
Magnús M. Halldórsson
Magnús M. Halldórsson Reykjavík University
Andris Ambainis
Andris Ambainis University of Latvia
David F. Manlove
David F. Manlove University of Glasgow
Masahito Hayashi
Masahito Hayashi Chinese University of Hong Kong, Shenzhen
Richard Cleve
Richard Cleve University of Waterloo
David Avis
David Avis McGill University
Robert W. Irving
Robert W. Irving University of Glasgow
Mike Paterson
Mike Paterson University of Warwick
Takao Nishizeki
Takao Nishizeki Tohoku University

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