World's Best Scientists 2026 revealed!
Hector J. Levesque

Hector J. Levesque

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Computer Science
Canada
2025

D-Index & Metrics

Computer Science

D-Index
65
Citations
30227
World Ranking
2390
National Ranking
89

Hector J. Levesque 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 Hector J. Levesque 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: 218 publications — 53rd percentile

53% of scientists in this discipline score the same or lower.

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

Hector J. Levesque 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 Hector J. Levesque 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: 65 D-Index — 83rd percentile

83% 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

  • 2025 - Research.com Computer Science in Canada Leader Award
  • 2023 - Research.com Computer Science in Canada Leader Award
  • 2022 - Research.com Computer Science in Canada Leader Award
  • 2011 - Fellow of the American Association for the Advancement of Science (AAAS)
  • 2006 - Fellow of the Royal Society of Canada Academy of Science
  • 1990 - Fellow of the Association for the Advancement of Artificial Intelligence (AAAI)

Overview

Hector J. Levesque is affiliated with the University of Toronto in Canada. Their research primarily falls within the field of Computer Science, with a specialization in Artificial Intelligence and related subfields such as Safety Research.

Their work covers several main topics, including:

  • AI-based Problem Solving and Planning
  • Logic, Reasoning, and Knowledge
  • Semantic Web and Ontologies
  • Ethics and Social Impacts of AI
  • Bayesian Modeling and Causal Inference

Levesque has collaborated frequently with Ronald J. Brachman and Vaishak Belle. Ronald J. Brachman is a particularly frequent coauthor, having worked together on multiple occasions.

The scientist's recent papers include:

  • "Regression and progression in stochastic domains", 2020, published in Artificial Intelligence
  • "Toward a New Science of Common Sense", 2022, published in the Proceedings of the AAAI Conference on Artificial Intelligence
  • "Toward a New Science of Common Sense", 2021, published in arXiv (Cornell University)

Levesque's publications have appeared notably in:

  • Artificial Intelligence
  • Proceedings of the AAAI Conference on Artificial Intelligence
  • arXiv (Cornell University)

In addition to journal and conference papers, Levesque has contributed to book publications. Notably, they have a book published by The MIT Press titled Machines like Us (2022).

Over their career, Hector J. Levesque has been recognized as a fellow by several professional organizations:

  • Fellow of the American Association for the Advancement of Science (AAAS), 2011
  • Fellow of the Royal Society of Canada, Academy of Science, 2006
  • Fellow of the Association for the Advancement of Artificial Intelligence (AAAI), 1990

Best Publications

  • Intention is choice with commitment

    Philip R. Cohen;Hector J. Levesque

  • Generating hard satisfiability problems

    Bart Selman;David G. Mitchell;Hector J. Levesque

  • A new method for solving hard satisfiability problems

    Bart Selman;Hector Levesque;David Mitchell

  • GOLOG: A logic programming language for dynamic domains

    Hector J. Levesque;Raymond Reiter;Yves Lespérance;Fangzhen Lin

  • Hard and easy distributions of SAT problems

    David Mitchell;Bart Selman;Hector Levesque

  • Knowledge Representation and Reasoning

    Ronald Brachman;Hector Levesque

  • Readings in Knowledge Representation

    Ronald J. Brachman;Hector J. Levesque

  • The Winograd schema challenge

    Hector J. Levesque;Ernest Davis;Leora Morgenstern

  • A logic of implicit and explicit belief

    Hector J. Levesque

  • Communicative actions for artificial agents

    Philip R. Cohen;Hector J. Levesque

  • Rational interaction as the basis for communication

    Philip R Cohen;Hector J Levesque

  • ConGolog , a concurrent programming language based on the situation calculus

    Giuseppe de Giacomo;Yves Lespérance;Hector J. Levesque

  • On acting together

    Hector J. Levesque;Philip R. Cohen;José H. T. Nunes

  • All I know: a study in autoepistemic logic

    Hector J. Levesque

  • The tractability of subsumption in frame-based description languages

    Ronald J. Brachman;Hector J. Levesque

  • Foundations of a functional approach to knowledge representation.

    Hector J. Levesque

  • Expressiveness and tractability in knowledge representation and reasoning

    Hector J. Levesque;Ronald J. Brachman

  • Knowledge, action, and the frame problem

    Richard B. Scherl;Hector J. Levesque

  • The frame problem and knowledge-producing actions

    Richard B. Scherl;Hector J. Levesque

  • An Overview of Knowledge Representation

    John Mylopoulos;Hector J. Levesque

  • The Winograd Schema Challenge

    Hector J. Levesque

  • Intention = choice + commitment

    Philip R. Cohen;Hector J. Levesque

Frequent Co-Authors

Gerhard Lakemeyer
Gerhard Lakemeyer RWTH Aachen University
Ronald J. Brachman
Ronald J. Brachman Cornell University
Giuseppe De Giacomo
Giuseppe De Giacomo Sapienza University of Rome
Raymond Reiter
Raymond Reiter University of Toronto
Philip R. Cohen
Philip R. Cohen Openstream, Inc.
Bart Selman
Bart Selman Cornell University
John Mylopoulos
John Mylopoulos University of Ottawa
Sheila A. McIlraith
Sheila A. McIlraith University of Toronto
Joseph Y. Halpern
Joseph Y. Halpern Cornell University
Fahiem Bacchus
Fahiem Bacchus University of Toronto

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