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Joseph Y. Halpern

Joseph Y. Halpern

D-Index & Metrics

Discipline name D-Index World Ranking National Ranking Publications Citations
Computer Science 100 361 197 475 55697

Joseph Y. Halpern publications per year

The chart shows the history of publications by Joseph Y. Halpern between 1965 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Joseph Y. Halpern published across 61 years, from 1965 to 2025, averaging 9.1 papers a year. Output peaked at 27 publications in 2004. 20 of the 557 publications appeared in the last two years.

No. of publications
5 10 15 20 25
Bar chart. Horizontal axis: year, 1965 to 2025. Vertical axis: number of publications, 0 to 27. Peak 27 publications in 2004. 1965: 1 publication 1966: 0 publications 1967: 2 publications 1968: 5 publications 1969: 5 publications 1970: 3 publications 1971: 2 publications 1972: 2 publications 1973: 2 publications 1974: 1 publication 1975: 1 publication 1976: 1 publication 1977: 1 publication 1978: 1 publication 1979: 1 publication 1980: 6 publications 1981: 7 publications 1982: 5 publications 1983: 8 publications 1984: 13 publications 1985: 10 publications 1986: 15 publications 1987: 6 publications 1988: 11 publications 1989: 7 publications 1990: 7 publications 1991: 10 publications 1992: 10 publications 1993: 7 publications 1994: 13 publications 1995: 14 publications 1996: 8 publications 1997: 12 publications 1998: 10 publications 1999: 16 publications 2000: 10 publications 2001: 15 publications 2002: 10 publications 2003: 10 publications 2004: 27 publications 2005: 8 publications 2006: 10 publications 2007: 13 publications 2008: 19 publications 2009: 12 publications 2010: 18 publications 2011: 14 publications 2012: 14 publications 2013: 12 publications 2014: 12 publications 2015: 12 publications 2016: 13 publications 2017: 14 publications 2018: 11 publications 2019: 14 publications 2020: 10 publications 2021: 11 publications 2022: 7 publications 2023: 18 publications 2024: 14 publications 2025: 6 publications
1965 2025

557 publications in total across all disciplines

View publications per year as a table
Joseph Y. Halpern: publications per year, 1965 to 2025
Year Publications
1965 1
1966 0
1967 2
1968 5
1969 5
1970 3
1971 2
1972 2
1973 2
1974 1
1975 1
1976 1
1977 1
1978 1
1979 1
1980 6
1981 7
1982 5
1983 8
1984 13
1985 10
1986 15
1987 6
1988 11
1989 7
1990 7
1991 10
1992 10
1993 7
1994 13
1995 14
1996 8
1997 12
1998 10
1999 16
2000 10
2001 15
2002 10
2003 10
2004 27
2005 8
2006 10
2007 13
2008 19
2009 12
2010 18
2011 14
2012 14
2013 12
2014 12
2015 12
2016 13
2017 14
2018 11
2019 14
2020 10
2021 11
2022 7
2023 18
2024 14
2025 6
Total 557
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Joseph Y. Halpern 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 Joseph Y. Halpern sits on this spectrum.

No. of scientists
200 400 600
Bar chart with 97 bars. Horizontal axis: publications, 32–41 to 991+. Vertical axis: number of scientists, 0 to 609. Most scientists, 609, have 142–151 publications. The last bar groups every scientist with 991 publications or more. The highlighted bar, 472–481 publications, is where this scientist sits. 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
32–41 publications 991+

This scientist: 475 publications — 92nd percentile

92% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Computer Science scientists by publication count, Research.com 2026 ranking edition. Based on 14,188 ranked scientists.
Publications Scientists This scientist
32–41 7
42–51 22
52–61 82
62–71 134
72–81 249
82–91 324
92–101 421
102–111 420
112–121 497
122–131 544
132–141 555
142–151 609
152–161 559
162–171 534
172–181 556
182–191 583
192–201 519
202–211 508
212–221 490
222–231 437
232–241 423
242–251 408
252–261 377
262–271 301
272–281 335
282–291 320
292–301 293
302–311 250
312–321 238
322–331 206
332–341 209
342–351 208
352–361 162
362–371 176
372–381 127
382–391 158
392–401 128
402–411 104
412–421 94
422–431 99
432–441 83
442–451 108
452–461 73
462–471 77
472–481 69 475
482–491 84
492–501 62
502–511 54
512–521 57
522–531 51
532–541 51
542–551 32
552–561 38
562–571 28
572–581 43
582–591 33
592–601 41
602–611 32
612–621 28
622–631 25
632–641 27
642–651 17
652–661 20
662–671 17
672–681 15
682–691 14
692–701 21
702–711 13
712–721 12
722–731 19
732–741 14
742–751 12
752–761 10
762–771 10
772–781 11
782–791 10
792–801 11
802–811 8
812–821 8
822–831 7
832–841 11
842–851 10
852–861 5
862–871 9
872–881 4
882–891 6
892–901 3
902–911 6
912–921 3
922–931 2
932–941 2
942–951 2
952–961 3
962–971 3
972–981 3
982–990 5
991+ 100
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Joseph Y. Halpern 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 Joseph Y. Halpern sits on this spectrum.

No. of scientists
200 400 600 800
Bar chart with 52 bars. Horizontal axis: D-Index, 30–31 to 131+. Vertical axis: number of scientists, 0 to 990. Most scientists, 990, have 36–37 D-Index. The last bar groups every scientist with 131 D-Index or more. The highlighted bar, 100–101 D-Index, is where this scientist sits. 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
30–31 D-Index 131+

This scientist: 100 D-Index — 97th percentile

97% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Computer Science scientists by D-index, Research.com 2026 ranking edition. Based on 14,188 ranked scientists.
D-Index Scientists This scientist
30–31 879
32–33 983
34–35 918
36–37 990
38–39 968
40–41 907
42–43 821
44–45 763
46–47 689
48–49 543
50–51 543
52–53 518
54–55 500
56–57 458
58–59 400
60–61 337
62–63 308
64–65 292
66–67 249
68–69 213
70–71 192
72–73 189
74–75 165
76–77 139
78–79 119
80–81 121
82–83 113
84–85 88
86–87 87
88–89 75
90–91 69
92–93 57
94–95 46
96–97 38
98–99 34
100–101 36 100
102–103 27
104–105 37
106–107 18
108–109 31
110–111 19
112–113 16
114–115 12
116–117 20
118–119 15
120–121 5
122–123 20
124–125 8
126–127 5
128–129 7
130 3
131+ 98
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Research.com Recognitions

  • 2019 - Member of the National Academy of Engineering For methods of reasoning about knowledge, belief, and uncertainty and their applications to distributed computing and multiagent systems.
  • 2015 - Fellow of the American Academy of Arts and Sciences
  • 2008 - ACM AAAI Allen Newell Award For fundamental advances in reasoning about knowledge, belief, and uncertainty and their groundbreaking applications in artificial intelligence, computer science, game theory, economics, and the philosophy of science.
  • 2005 - Fellow of the American Association for the Advancement of Science (AAAS)
  • 2002 - ACM Fellow For contributions to the modeling of and reasoning about uncertainty.
  • 1993 - Fellow of the Association for the Advancement of Artificial Intelligence (AAAI) For sustained excellence in theoretical research on the logics of and relationships among knowledge, common knowledge, belief and probability.

Overview

Joseph Y. Halpern is affiliated with Cornell University in the United States, specializing in the fields of Computer Science and Decision Sciences. Their research encompasses a variety of topics including Bayesian Modeling and Causal Inference, Game Theory and Applications, Experimental Behavioral Economics Studies, Logic, Reasoning, and Knowledge, Decision-Making and Behavioral Economics, Cryptography and Data Security, and Auction Theory and Applications.

Their recent publications illustrate a focus on theoretical aspects of reasoning and decision-making. Notable papers include:

  • Reasoning about Causal Models with Infinitely Many Variables, 2022, Proceedings of the AAAI Conference on Artificial Intelligence
  • Sequential Equilibrium in Games of Imperfect Recall, 2021, ACM Transactions on Economics and Computation
  • Causality, Responsibility and Blame in Team Plans, 2020, arXiv (Cornell University)

Halpern has frequently collaborated with several researchers. Among the most common co-authors are Ivan Geffner, Hana Chockler, Spencer Peters, Yuval Heller, and Meir Friedenberg.

Their work has appeared in several publication venues multiple times, including arXiv (Cornell University), Electronic Proceedings in Theoretical Computer Science, Proceedings of the AAAI Conference on Artificial Intelligence, Leibniz-Zentrum für Informatik (Schloss Dagstuhl), and SSRN Electronic Journal.

The research focus spans diverse subfields such as Artificial Intelligence, Management Science and Operations Research, Safety Research, Economics and Econometrics, and Cognitive Neuroscience.

Joseph Y. Halpern has received recognition from professional organizations, including being named a Member of the National Academy of Engineering in 2019 for contributions related to methods of reasoning about knowledge, belief, and uncertainty and their applications to distributed computing and multiagent systems. Additional honors include Fellowship in the American Academy of Arts and Sciences in 2015, the ACM AAAI Allen Newell Award in 2008, Fellow of the American Association for the Advancement of Science in 2005, ACM Fellow in 2002, and Fellow of the Association for the Advancement of Artificial Intelligence in 1993. These awards reflect sustained work in areas linked to knowledge, belief, uncertainty, and their implications for artificial intelligence, computer science, game theory, economics, and philosophy of science.

Best Publications

  • Reasoning About Knowledge

    Ronald Fagin;Joseph Y. Halpern;Yoram Moses;Moshe Y. Vardi

  • Reasoning About Knowledge

    Ronald Fagin;Joseph Y. Halpern;Moshe Y. Vardi;Yoram Moses

  • Knowledge and common knowledge in a distributed environment

    Joseph Y. Halpern;Yoram Moses

  • Reasoning about Uncertainty

    Joseph Y. Halpern

  • “Sometimes” and “not never” revisited: on branching versus linear time temporal logic

    E. Allen Emerson;Joseph Y. Halpern

  • Belief, awareness, and limited reasoning

    R. Fagin;J. Y. Halpern

  • A guide to completeness and complexity for modal logics of knowledge and belief

    Joseph Y. Halpern;Yoram Moses

  • Gossip-based ad hoc routing

    Z.J. Haas;J.Y. Halpern;Li Li

  • Causes and explanations: A structural-model approach. Part I: Causes

    Joseph Y. Halpern;Judea Pearl

  • An analysis of first-order logics of probability

    Joseph Y. Halpern

  • A logic for reasoning about probabilities

    R. Fagin;J.Y. Halpern;N. Megiddo

  • Decision procedures and expressiveness in the temporal logic of branching time

    E. A. Emerson;Joseph Y. Halpern

  • Gossip-based ad hoc routing

    Zygmunt J. Haas;Joseph Y. Halpern;Li Li

  • Minimum-energy mobile wireless networks revisited

    L. Li;J.Y. Halpern

  • A propositional modal logic of time intervals

    Joseph Y. Halpern;Yoav Shoham

  • Analysis of a cone-based distributed topology control algorithm for wireless multi-hop networks

    Li Li;Joseph Y. Halpern;Paramvir Bahl;Yi-Min Wang

  • Reasoning about knowledge and probability

    Ronald Fagin;Joseph Y. Halpern

  • A guide to the modal logics of knowledge and belief: preliminary draft

    Joseph Y. Halpern;Yoram Moses

  • Distributed computing meets game theory: robust mechanisms for rational secret sharing and multiparty computation

    Ittai Abraham;Danny Dolev;Rica Gonen;Joe Halpern

  • Proceedings of the 20th conference on Uncertainty in artificial intelligence

    Christopher Meek;Max Chickering;Joseph Halpern

  • Causes and Explanations: A Structural-Model Approach: Part 1: Causes

    Joseph Y. Halpern;Riccardo Pucella

  • Gossip Based Ad-Hoc Routing

    Zygmunt Haas;Joseph Y. Halpern;Erran L. Li

Frequent Co-Authors

Rafael Pass
Rafael Pass Cornell University
Ronald Fagin
Ronald Fagin IBM (United States)
Yoram Moses
Yoram Moses Technion – Israel Institute of Technology
Moshe Y. Vardi
Moshe Y. Vardi Rice University
Daphne Koller
Daphne Koller insitro Inc.
Nir Friedman
Nir Friedman Weizmann Institute of Science
Danny Dolev
Danny Dolev Hebrew University of Jerusalem
Fahiem Bacchus
Fahiem Bacchus University of Toronto

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