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D-Index & Metrics

Computer Science

D-Index
61
Citations
14056
World Ranking
3094
National Ranking
1511

Guy M. Lohman 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 Guy M. Lohman 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: 155 publications — 29th percentile

29% of scientists in this discipline score the same or lower.

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

Guy M. Lohman 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 Guy M. Lohman 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: 61 D-Index — 79th percentile

79% of scientists in this discipline score the same or lower.

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

Overview

Guy M. Lohman is affiliated with IBM in the United States. Their professional profile reflects a focus on research within this leading technology organization.

There is no publicly available data regarding specific publications, co-authors, or fields of study for Guy M. Lohman. Similarly, detailed information about frequent publication venues, book publications, main or subfields of study, and main research topics is not documented.

There are no recorded awards or recognitions associated with Guy M. Lohman in the available data.

Given the information available, Guy M. Lohman's profile is limited to their association with IBM, with no further detailed academic or research outputs accessible at this time.

Best Publications

  • On supporting containment queries in relational database management systems

    Chun Zhang;Jeffrey Naughton;David DeWitt;Qiong Luo

  • R* optimizer validation and performance evaluation for local queries

    Lothar F. Mackert;Guy M. Lohman

  • LEO - DB2's LEarning Optimizer

    Michael Stillger;Guy M. Lohman;Volker Markl;Mokhtar Kandil

  • Extensible query processing in starburst

    L. M. Haas;J. C. Freytag;G. M. Lohman;H. Pirahesh

  • DB2 advisor: an optimizer smart enough to recommend its own indexes

    G. Valentin;M. Zuliani;D.C. Zilio;G. Lohman

  • DB2 design advisor: integrated automatic physical database design

    Daniel C. Zilio;Jun Rao;Sam Lightstone;Guy Lohman

  • Starburst mid-flight: as the dust clears (database project)

    L.M. Haas;W. Chang;G.M. Lohman;J. McPherson

  • R* Optimizer Validation and Performance Evaluation for Distributed Queries

    Lothar F. Mackert;Guy M. Lohman

  • Differential files: their application to the maintenance of large databases

    Unknown

  • DB2 with BLU acceleration: so much more than just a column store

    Vijayshankar Raman;Gopi Attaluri;Ronald Barber;Naresh Chainani

  • Robust query processing through progressive optimization

    Volker Markl;Vijayshankar Raman;David Simmen;Guy Lohman

  • Automating physical database design in a parallel database

    Jun Rao;Chun Zhang;Nimrod Megiddo;Guy Lohman

  • Grammar-like functional rules for representing query optimization alternatives

    Guy M. Lohman

  • Measuring the complexity of join enumeration in query optimization

    Kiyoshi Ono;Guy M. Lohman

  • Optimization of data repartitioning during parallel query optimization

    Guy Maring Lohman;Mir Hamid Pirahesh;Eugene Jon Shekita;David E. Simmen

  • Extensions to Starburst: objects, types, functions, and rules

    Guy M. Lohman;Bruce Lindsay;Hamid Pirahesh;K. Bernhard Schiefer

  • Relational database query optimization to perform query evaluation plan, pruning based on the partition properties

    Guy Maring Lohman;Eugene Jon Shekita;David E. Simmen;Monica Sachiye Urata

  • System, method, and computer program product for progressive query processing

    Guy Maring Lohman;Marki Volker;Mir Hamid Pirahesh;Vijayshankar Raman

  • GPU join processing revisited

    Tim Kaldewey;Guy Lohman;Rene Mueller;Peter Volk

  • Query Processing in R

    Guy M. Lohman;C. Mohan;Laura M. Haas;Dean Daniels

  • System RX: one part relational, one part XML

    Kevin Beyer;Roberta J. Cochrane;Vanja Josifovski;Jim Kleewein

  • Proceedings of the 32nd international conference on Very large data bases

    Umeshwar Dayal;Khu-Yong Whang;David Lomet;Gustavo Alonso

Frequent Co-Authors

Vijayshankar Raman
Vijayshankar Raman Google (United States)
Sam Lightstone
Sam Lightstone IBM (United States)
Hamid Pirahesh
Hamid Pirahesh IBM (United States)
Volker Markl
Volker Markl Technical University of Berlin
Peter J. Haas
Peter J. Haas University of Massachusetts Amherst
Chandrasekaran Mohan
Chandrasekaran Mohan IBM (United States)
Eugene J. Shekita
Eugene J. Shekita Google (United States)
Bruce G. Lindsay
Bruce G. Lindsay IBM (United States)
Mir Hamid Pirahesh
Mir Hamid Pirahesh IBM (United States)
Nimrod Megiddo
Nimrod Megiddo IBM (United States)

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