World's Best Scientists 2026 revealed!

D-Index & Metrics

Computer Science

D-Index
42
Citations
10636
World Ranking
8223
National Ranking
3528

James Joshi 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 James Joshi 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: 239 publications — 59th percentile

59% of scientists in this discipline score the same or lower.

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

James Joshi 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 James Joshi 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: 42 D-Index — 43rd percentile

43% 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 - Fellow of the American Association for the Advancement of Science (AAAS) for Distinguished Contributions to Cybersecurity, Trust, and Privacy
  • 2023 - Fellow of the Asia-Pacific Artificial Information Association (AAIA)
  • 2023 - IEEE Fellow for Contributions in Access Control and Privacy
  • 2017 - ACM Distinguished Member
  • 2013 - ACM Senior Member
  • 2013 - Fellow of the Society of Information Reuse and Integration (SIRI)

Overview

James Joshi is affiliated with the University of Pittsburgh in the United States and works primarily in the field of Computer Science. Their research spans multiple subfields, with a focus on Artificial Intelligence, Sociology and Political Science, Information Systems, Computer Networks and Communications, and Computational Theory and Mathematics.

Their work predominantly addresses topics related to Privacy-Preserving Technologies in Data, Cryptography and Data Security, Internet Traffic Analysis and Secure E-voting, Access Control and Trust, Blockchain Technology Applications and Security, IoT and Edge/Fog Computing, and Adversarial Robustness in Machine Learning.

James Joshi has published extensively, with recent papers including:

  • An Automatic Attribute-Based Access Control Policy Extraction From Access Logs, 2021, IEEE Transactions on Dependable and Secure Computing
  • Semantic Encryption/Decryption: Utilizing Preprocessing of Data as a Security Mechanism in Machine Learning Models, 2024, arXiv (Cornell University)
  • NN-EMD: Efficiently Training Neural Networks Using Encrypted Multi-Sourced Datasets, 2021, IEEE Transactions on Dependable and Secure Computing
  • TAPFed: Threshold Secure Aggregation for Privacy-Preserving Federated Learning, 2024, IEEE Transactions on Dependable and Secure Computing
  • FedV: Privacy-Preserving Federated Learning over Vertically Partitioned Data, 2021, arXiv (Cornell University)

Frequent coauthors in their work include:

  • Runhua Xu
  • Leila Karimi
  • Mai Abdelhakim
  • Chao Li
  • Maryam Aldairi

The scientist has published primarily in venues such as:

  • arXiv (Cornell University)
  • IEEE Transactions on Dependable and Secure Computing
  • Computers & Security
  • ACM Transactions on Internet Technology
  • IEEE Transactions on Services Computing

James Joshi has been recognized as an ACM Distinguished Member since 2017 and an ACM Senior Member since 2013.

Best Publications

  • Security and Privacy Challenges in Cloud Computing Environments

    H Takabi;J B D Joshi;G Ahn

  • A Survey of Defense Mechanisms Against Distributed Denial of Service (DDoS) Flooding Attacks

    Saman Taghavi Zargar;James Joshi;David Tipper

  • A generalized temporal role-based access control model

    J.B.D. Joshi;E. Bertino;U. Latif;A. Ghafoor

  • Security models for web-based applications

    James B. D. Joshi;Walid G. Aref;Arif Ghafoor;Eugene H. Spafford

  • Secure interoperation in a multidomain environment employing RBAC policies

    B. Shafiq;J.B.D. Joshi;E. Bertino;A. Ghafoor

  • Digital Government Security Infrastructure Design Challenges

    Unknown

  • Digital government security infrastructure design challenges

    J. Joshi;A. Ghafoor;W.G. Aref;E.H. Spafford

  • Access-control language for multidomain environments

    J.B.D. Joshi

  • X-GTRBAC: an XML-based policy specification framework and architecture for enterprise-wide access control

    Rafae Bhatti;Arif Ghafoor;Elisa Bertino;James B. D. Joshi

  • LoT-RBAC : A location and time-based RBAC model

    Suroop Mohan Chandran;J. B. D. Joshi

  • SecureCloud: Towards a Comprehensive Security Framework for Cloud Computing Environments

    Hassan Takabi;James B. D. Joshi;Gail-Joon Ahn

  • IPv6 Security Challenges

    C.E. Caicedo;J.B.D. Joshi;S.R. Tuladhar

  • Towards active detection of identity clone attacks on online social networks

    Lei Jin;Hassan Takabi;James B.D. Joshi

  • Temporal hierarchies and inheritance semantics for GTRBAC

    James B D Joshi;Elisa Bertino;Arif Ghafoor

  • XML-based specification for Web services document security

    R. Bhatti;E. Bertino;A. Ghafoor;J.B.D. Joshi

  • Access Control in Dynamic XML-Based Web-Services with X-RBAC.

    Rafae Bhatti;James B. D. Joshi;Elisa Bertino;Arif Ghafoor

  • Exploring trajectory-driven local geographic topics in foursquare

    Xuelian Long;Lei Jin;James Joshi

  • An adaptive risk management and access control framework to mitigate insider threats

    Nathalie Baracaldo;James Joshi

  • Dependencies and separation of duty constraints in GTRBAC

    James B. D. Joshi;Basit Shafiq;Arif Ghafoor;Elisa Bertino

  • OSNAC: An Ontology-based Access Control Model for Social Networking Systems

    Amirreza Masoumzadeh;James Joshi

  • A generalized temporal role based access control model for developing secure systems

    James B. D. Joshi;Arif Ghafoor

Frequent Co-Authors

Elisa Bertino
Elisa Bertino Purdue University West Lafayette
Arif Ghafoor
Arif Ghafoor Purdue University West Lafayette
Eugene H. Spafford
Eugene H. Spafford Purdue University West Lafayette
George Varghese
George Varghese University of California, Los Angeles
Larry L. Peterson
Larry L. Peterson Princeton University
Saurabh Bagchi
Saurabh Bagchi Purdue University West Lafayette
Rajiv Ramaswami
Rajiv Ramaswami Nortel (Canada)
Mei-Ling Shyu
Mei-Ling Shyu University of Missouri–Kansas City
Bhavani Thuraisingham
Bhavani Thuraisingham The University of Texas at Dallas

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