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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Computer Science 57 3772 3667 1801 1737 577 16583

Ahmed H. Tewfik publications per year

The chart shows the history of publications by Ahmed H. Tewfik between 1985 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Ahmed H. Tewfik published across 41 years, from 1985 to 2025, averaging 15.4 papers a year. Output peaked at 42 publications in 2007. 8 of the 632 publications appeared in the last two years.

No. of publications
10 20 30 40
Bar chart. Horizontal axis: year, 1985 to 2025. Vertical axis: number of publications, 0 to 42. Peak 42 publications in 2007. 1985: 1 publication 1986: 1 publication 1987: 0 publications 1988: 2 publications 1989: 8 publications 1990: 11 publications 1991: 6 publications 1992: 10 publications 1993: 17 publications 1994: 11 publications 1995: 15 publications 1996: 20 publications 1997: 23 publications 1998: 22 publications 1999: 25 publications 2000: 19 publications 2001: 12 publications 2002: 19 publications 2003: 18 publications 2004: 30 publications 2005: 29 publications 2006: 26 publications 2007: 42 publications 2008: 35 publications 2009: 29 publications 2010: 30 publications 2011: 22 publications 2012: 16 publications 2013: 13 publications 2014: 7 publications 2015: 8 publications 2016: 6 publications 2017: 6 publications 2018: 5 publications 2019: 15 publications 2020: 22 publications 2021: 20 publications 2022: 13 publications 2023: 10 publications 2024: 7 publications 2025: 1 publication
1985 2025

632 publications in total across all disciplines

View publications per year as a table
Ahmed H. Tewfik: publications per year, 1985 to 2025
Year Publications
1985 1
1986 1
1987 0
1988 2
1989 8
1990 11
1991 6
1992 10
1993 17
1994 11
1995 15
1996 20
1997 23
1998 22
1999 25
2000 19
2001 12
2002 19
2003 18
2004 30
2005 29
2006 26
2007 42
2008 35
2009 29
2010 30
2011 22
2012 16
2013 13
2014 7
2015 8
2016 6
2017 6
2018 5
2019 15
2020 22
2021 20
2022 13
2023 10
2024 7
2025 1
Total 632
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Ahmed H. Tewfik 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 Ahmed H. Tewfik 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, 572–581 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: 577 publications — 96th percentile

96% 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
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 43 577
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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Ahmed H. Tewfik 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 Ahmed H. Tewfik 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, 56–57 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: 57 D-Index — 74th percentile

74% 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 57
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
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

  • 1996 - IEEE Fellow For contributions wavelet theory and fractal signal processing and their applications.

Overview

What is he best known for?

The fields of study he is best known for:

  • Artificial intelligence
  • Statistics
  • Algorithm

Ahmed H. Tewfik spends much of his time researching Artificial intelligence, Digital watermarking, Computer vision, Watermark and Algorithm. Ahmed H. Tewfik has researched Artificial intelligence in several fields, including Speech recognition, Distortion, Frequency domain and Pattern recognition. His Digital watermarking study combines topics in areas such as Digital audio, Audio signal, Multimedia, Sequence and Robustness.

Many of his studies on Computer vision involve topics that are commonly interrelated, such as Perceptual Masking. The concepts of his Watermark study are interwoven with issues in Image processing, Image segmentation, Filter and Host. His Algorithm research is multidisciplinary, relying on both Mathematical optimization, Wavelet, Wavelet transform and Signal processing.

His most cited work include:

  • Multimedia data-embedding and watermarking technologies (859 citations)
  • Digital watermarks for audio signals (571 citations)
  • Robust audio watermarking using perceptual masking (449 citations)

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

Ahmed H. Tewfik mainly investigates Artificial intelligence, Algorithm, Computer vision, Pattern recognition and Speech recognition. Artificial intelligence and Machine learning are frequently intertwined in his study. His Algorithm research includes themes of Mathematical optimization, Theoretical computer science, Wavelet and Radar.

His study in Iterative reconstruction, Data compression, Image resolution, Image processing and Frequency domain is carried out as part of his studies in Computer vision. Ahmed H. Tewfik interconnects Brain–computer interface and Cluster analysis in the investigation of issues within Pattern recognition. His Watermark research extends to Digital watermarking, which is thematically connected.

He most often published in these fields:

  • Artificial intelligence (38.65%)
  • Algorithm (21.91%)
  • Computer vision (17.93%)

What were the highlights of his more recent work (between 2012-2021)?

  • Artificial intelligence (38.65%)
  • Speech recognition (12.35%)
  • Electroencephalography (6.18%)

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

His primary areas of investigation include Artificial intelligence, Speech recognition, Electroencephalography, Deep learning and Pattern recognition. His Artificial intelligence study combines topics from a wide range of disciplines, such as Algorithm, Machine learning and Computer vision. His Algorithm research integrates issues from State and Lattice reduction.

His work on Object detection as part of general Computer vision study is frequently connected to Data acquisition, therefore bridging the gap between diverse disciplines of science and establishing a new relationship between them. He usually deals with Speech recognition and limits it to topics linked to Decoding methods and Local field potential. His work deals with themes such as Image and Generative grammar, which intersect with Pattern recognition.

Between 2012 and 2021, his most popular works were:

  • Speech Recognition with No Speech or with Noisy Speech (35 citations)
  • Advancing Speech Recognition With No Speech Or With Noisy Speech (25 citations)
  • State-of-the-art Speech Recognition using EEG and Towards Decoding of Speech Spectrum From EEG (23 citations)

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

  • Artificial intelligence
  • Statistics
  • Algorithm

His primary scientific interests are in Artificial intelligence, Speech recognition, Electroencephalography, Electronic engineering and Deep learning. His study in Artificial intelligence is interdisciplinary in nature, drawing from both Brain–computer interface, Computer vision, Algorithm, Machine learning and Pattern recognition. In the subject of general Computer vision, his work in Filter, Template matching and Artifact is often linked to ECG Measurement, thereby combining diverse domains of study.

His research integrates issues of Speech spectrum, Noise, Connectionism, Decoding methods and Speech synthesis in his study of Electroencephalography. His work on Bandwidth as part of general Electronic engineering research is often related to Successive approximation ADC, thus linking different fields of science. His work carried out in the field of Deep learning brings together such families of science as Signal and Channel use.

Best Publications

  • Multimedia data-embedding and watermarking technologies

    M.D. Swanson;M. Kobayashi;A.H. Tewfik

  • Digital watermarks for audio signals

    Laurence Boney;Ahmed H. Tewfik;Khaled N. Hamdy

  • Robust audio watermarking using perceptual masking

    Mitchell D. Swanson;Bin Zhu;Ahmed H. Tewfik;Laurence Boney

  • Transparent robust image watermarking

    M.D. Swanson;Bin Zhu;A.H. Tewfik

  • Multiresolution scene-based video watermarking using perceptual models

    M.D. Swanson;Bin Zhu;A.H. Tewfik

  • Method and apparatus for embedding data, including watermarks, in human perceptible sounds

    Ahmed H. Tewfik;Mitchell D. Swanson;Bin Zhu;Laurence Boney

  • Correlation structure of the discrete wavelet coefficients of fractional Brownian motion

    A.H. Tewfik;M. Kim

  • Low bit rate transparent audio compression using adapted wavelets

    D. Sinha;A.H. Tewfik

  • A construction of a space-time code based on number theory

    M.O. Damen;A. Tewfik;J.C. Belflore

  • On the optimal choice of a wavelet for signal representation

    A.H. Tewfik;D. Sinha;P. Jorgensen

  • Geometric Invariance in image watermarking

    M. Alghoniemy;A.H. Tewfik

  • Robust data hiding for images

    M.D. Swanson;B. Zhu;A.H. Tewfik

  • Multimedia Data Embedding and Decoding

    Ahmed Tewfik;Mitchell D. Swanson;Bin Zhu

  • When seeing isn't believing [multimedia authentication technologies]

    B.B. Zhu;M.D. Swanson;A.H. Tewfik

  • Digital watermarking to resolve multiple claims of ownership

    Ahmed H. Tewfik;Mitchell D. Swanson;Bin Zhu

  • Audio-visual content-based violent scene characterization

    J. Nam;M. Alghoniemy;A.H. Tewfik

  • Method and apparatus for scene-based video watermarking

    Ahmed H. Tewfik;Mitchell D. Swanson;Bin Zhu

  • Data hiding for video-in-video

    M.D. Swanson;Bin Zhu;A.H. Tewfik

  • Geometric distortion correction through image normalization

    M. Alghoniemy;A.H. Tewfik

  • Distributed sensor network localization using SOCP relaxation

    S. Srirangarajan;A. Tewfik;Zhi-Quan Luo

Frequent Co-Authors

Bin Zhu
Bin Zhu Southeast University
Mostafa Kaveh
Mostafa Kaveh University of Minnesota
Arthur G. Erdman
Arthur G. Erdman University of Minnesota
Sriram Vishwanath
Sriram Vishwanath The University of Texas at Austin
Ahmet Enis Cetin
Ahmet Enis Cetin University of Illinois at Chicago
Mohamed-Slim Alouini
Mohamed-Slim Alouini King Abdullah University of Science and Technology
Amy P.N. Skubitz
Amy P.N. Skubitz University of Minnesota
James Ashe
James Ashe University of Minnesota
Keshab K. Parhi
Keshab K. Parhi University of Minnesota
Michael A. Kuskowski
Michael A. Kuskowski University of Minnesota

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