World's Best Scientists 2026 revealed!
Shmuel Shaffer

Shmuel Shaffer

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Computer Science
Germany
2025

D-Index & Metrics

Computer Science

D-Index
77
Citations
18957
World Ranking
1301
National Ranking
51

Shmuel Shaffer 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 Shmuel Shaffer 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: 443 publications — 90th percentile

90% of scientists in this discipline score the same or lower.

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

Shmuel Shaffer 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 Shmuel Shaffer 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: 77 D-Index — 91st percentile

91% 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 Germany Leader Award
  • 2022 - Research.com Computer Science in Germany Leader Award

Overview

What is he best known for?

The fields of study he is best known for:

  • Computer network
  • Operating system
  • The Internet

His primary areas of investigation include Real-time computing, Computer network, Call management, Telecommunications and Routing. His biological study spans a wide range of topics, including Fixed wireless, Schedule, Synchronization, The Internet and Scheduling. He interconnects Mode and Telephone line in the investigation of issues within Computer network.

His Call management study incorporates themes from Computer security, Queue, Speech recognition and Automatic number identification. His Telecommunications research is multidisciplinary, incorporating elements of Blocking, Session, Reduction and Line. His study in Routing is interdisciplinary in nature, drawing from both Quality of service, Call routing and Tariff.

His most cited work include:

  • Apparatus and method for automated event notification (345 citations)
  • Method and system for management of message attachments (317 citations)
  • Method and system for determining the location for performing file-format conversions of electronics message attachments (219 citations)

What are the main themes of his work throughout his whole career to date?

Shmuel Shaffer mainly investigates Computer network, Real-time computing, Telecommunications, Computer hardware and Multimedia. His study on Computer network is mostly dedicated to connecting different topics, such as Transmission. His Call management research extends to Real-time computing, which is thematically connected.

Specifically, his work in Network packet is concerned with the study of Transmission delay.

He most often published in these fields:

  • Computer network (42.05%)
  • Real-time computing (17.42%)
  • Telecommunications (11.74%)

What were the highlights of his more recent work (between 1999-2004)?

  • Computer network (42.05%)
  • Telecommunications (11.74%)
  • Terminal (4.55%)

In recent papers he was focusing on the following fields of study:

Shmuel Shaffer spends much of his time researching Computer network, Telecommunications, Terminal, Real-time computing and Multimedia. Shmuel Shaffer has researched Computer network in several fields, including The Internet and State. When carried out as part of a general Telecommunications research project, his work on Telecommunications network is frequently linked to work in Set, therefore connecting diverse disciplines of study.

His research investigates the connection with Terminal and areas like Identifier which intersect with concerns in Fault tolerance, Backup, Communication channel and Embedded system. His Real-time computing research includes themes of Call control and Call management. The concepts of his Queue study are interwoven with issues in Routing, Call routing, Telephone number and Callback.

Between 1999 and 2004, his most popular works were:

  • Method and system for management of message attachments (317 citations)
  • Method and system for enabling queue camp-on for skills-based routing (159 citations)
  • Web-based call center system with web document annotation (110 citations)

In his most recent research, the most cited papers focused on:

  • Computer network
  • Operating system
  • The Internet

His primary areas of study are Computer network, Terminal, Multimedia, Telephony and Real-time computing. His Computer network study frequently links to related topics such as Echo. His Terminal study also includes fields such as

  • Identifier which intersects with area such as Fault tolerance, Embedded system, Communication channel and Backup,
  • Control unit, which have a strong connection to Port, Graphics, Videoconferencing and Transfer,
  • Channel-associated signaling and related Gateway and Gateway address.

His Multimedia research integrates issues from Digital signal processing, Sound quality, Computer program, Bandwidth and Speech coding. His Telephony research incorporates themes from Distributed computing, Client, Feature and Call forwarding. His studies examine the connections between Real-time computing and genetics, as well as such issues in Telephone number, with regards to Call management.

Best Publications

  • Apparatus and method for automated event notification

    William Joseph Beyda;Shmuel Shaffer.

  • Method and system for management of message attachments

    William J. Beyda;Shmuel Shaffer;Paul Bonomo

  • Verfahren und System zur Steigerung der Dienstleitungsqualität bei oder unter einem Grenz-Tarif

    Shmuel Shaffer

  • DIRECTION METHOD IN INTERACTIVE SOUND RESPONSE SYSTEM AND THE INTERACTIVE SOUND RESPONSE SYSTEM

    Beyda William;Shaffer Shmuel

  • Interactive text communication system

    Cary W. FitzGerald;Shmuel Shaffer

  • Methods and system for providing data and telephony security

    William Beyda;Shmuel Shaffer

  • System and method for securing transactions in a contact center environment

    Labhesh Patel;Shmuel Shaffer;Cullen Jennings;Shantanu Sarkar

  • System and method for prevention of cell loss due to quality of service contracts in an ATM network

    Richard J. Riggan;William Joseph Beyda;Shmuel Shaffer

  • Virtual conference room for voice conferencing

    Michael E. Knappe;Shmuel Shaffer

  • Reducing the impact of hidden nodes in mesh networks

    Shmuel Shaffer;Charles Okwudiafor;Sandeep Jay Shetty

  • SYSTEM AND METHOD TO SELECT CALL PATH

    Shaffer Shmuel;Beyda William

  • Automatic call distribution and training system

    Shmuel Shaffer;William J. Beyda

  • Device and method for tracking time zone changes in communications devices

    Markku Korpi;Shmuel Shaffer;William Joseph Beyda

  • Subconference calling in a telephony-over-LAN environment

    William Joseph Beyda;Shmuel Shaffer

  • Text to speech system and method having interactive spelling capabilities

    Shmuel Shaffer;Labhesh Patel;Shantanu Sarkar

  • Geographical Location Information/Signal Quality-Context Based Recording and Playback of Multimedia Data from a Conference Session

    Shmuel Shaffer;Mukul Jain;Jochen Weppner;Shantanu Sarkar

  • Video conferencing with adaptive client-controlled resource utilization

    William Joseph Beyda;Shmuel Shaffer;Vinesh R. Mehta

  • Method for constructing adaptive packet lengths in a congested network

    Shmuel Shaffer;David Weiss;Jay Casuba

  • DEVICE AND METHOD FOR AUTOMATIC ANALYSIS OF VOICE DURING CALL CHECKUP IN AUTOMATIC CALL DISTRIBUTION SYSTEM

    Shaffer Shmjuehl;Bejda Uil Jam;Skrzynskij Mark;Georgiu Florin M

  • Navigation and coordination during emergencies

    Labhesh Patel;Shmuel Shaffer;Gebran Chahrouri;Shantanu Sarkar

Frequent Co-Authors

William J. Beyda
William J. Beyda Siemens (Germany)

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