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Tomoaki Ohtsuki

Tomoaki Ohtsuki

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Computer Science 50 5585 5428 72 68 784 11002

Tomoaki Ohtsuki publications per year

The chart shows the history of publications by Tomoaki Ohtsuki between 1969 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Tomoaki Ohtsuki published across 58 years, from 1969 to 2026, averaging 16.2 papers a year. Output peaked at 75 publications in 2025. 76 of the 939 publications appeared in the last two years.

No. of publications
25 50 75
Bar chart. Horizontal axis: year, 1969 to 2026. Vertical axis: number of publications, 0 to 75. Peak 75 publications in 2025. 1969: 1 publication 1970: 0 publications 1971: 0 publications 1972: 0 publications 1973: 0 publications 1974: 0 publications 1975: 0 publications 1976: 0 publications 1977: 0 publications 1978: 0 publications 1979: 0 publications 1980: 0 publications 1981: 0 publications 1982: 0 publications 1983: 0 publications 1984: 0 publications 1985: 0 publications 1986: 0 publications 1987: 0 publications 1988: 0 publications 1989: 0 publications 1990: 0 publications 1991: 4 publications 1992: 5 publications 1993: 7 publications 1994: 12 publications 1995: 5 publications 1996: 11 publications 1997: 12 publications 1998: 8 publications 1999: 9 publications 2000: 13 publications 2001: 13 publications 2002: 17 publications 2003: 23 publications 2004: 32 publications 2005: 28 publications 2006: 23 publications 2007: 22 publications 2008: 15 publications 2009: 16 publications 2010: 34 publications 2011: 29 publications 2012: 41 publications 2013: 31 publications 2014: 41 publications 2015: 39 publications 2016: 33 publications 2017: 33 publications 2018: 39 publications 2019: 33 publications 2020: 41 publications 2021: 58 publications 2022: 35 publications 2023: 49 publications 2024: 51 publications 2025: 75 publications 2026: 1 publication
1969 2026

939 publications in total across all disciplines

View publications per year as a table
Tomoaki Ohtsuki: publications per year, 1969 to 2026
Year Publications
1969 1
1970 0
1971 0
1972 0
1973 0
1974 0
1975 0
1976 0
1977 0
1978 0
1979 0
1980 0
1981 0
1982 0
1983 0
1984 0
1985 0
1986 0
1987 0
1988 0
1989 0
1990 0
1991 4
1992 5
1993 7
1994 12
1995 5
1996 11
1997 12
1998 8
1999 9
2000 13
2001 13
2002 17
2003 23
2004 32
2005 28
2006 23
2007 22
2008 15
2009 16
2010 34
2011 29
2012 41
2013 31
2014 41
2015 39
2016 33
2017 33
2018 39
2019 33
2020 41
2021 58
2022 35
2023 49
2024 51
2025 75
2026 1
Total 939
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Tomoaki Ohtsuki 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 Tomoaki Ohtsuki 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, 782–791 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: 784 publications — 98th percentile

98% 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
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 10 784
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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Tomoaki Ohtsuki 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 Tomoaki Ohtsuki 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, 50–51 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: 50 D-Index — 62nd percentile

62% 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 50
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
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

  • 1984 - IEEE Fellow For contributions to circuit theory and computer-aided circuit analysis.

Overview

Tomoaki Ohtsuki is affiliated with Keio University in Japan and has an extensive publication record spanning engineering and computer science disciplines. Their work encompasses a variety of research areas, with a strong focus on electrical and electronic engineering as well as artificial intelligence. The scientist's breadth of expertise includes computer networks and communications, aerospace engineering, and computer vision and pattern recognition.

The research topics addressed by Ohtsuki include advanced MIMO systems optimization, non-invasive vital sign monitoring, wireless signal modulation classification, ECG monitoring and analysis, millimeter-wave propagation and modeling, UAV applications and optimization, and network security and intrusion detection.

Ohtsuki has frequently published in the following venues:

  • IEEE Internet of Things Journal
  • IEEE Access
  • Sensors
  • IEEE Transactions on Vehicular Technology
  • arXiv (Cornell University)

Some of the recent papers authored or co-authored by Ohtsuki include:

  • "An Efficient Specific Emitter Identification Method Based on Complex-Valued Neural Networks and Network Compression", 2021, IEEE Journal on Selected Areas in Communications
  • "A Novel Intrusion Detection Method Based on Lightweight Neural Network for Internet of Things", 2021, IEEE Internet of Things Journal
  • "Deep Reinforcement Learning for Economic Dispatch of Virtual Power Plant in Internet of Energy", 2020, IEEE Internet of Things Journal
  • "Multi-Task Learning for Generalized Automatic Modulation Classification Under Non-Gaussian Noise With Varying SNR Conditions", 2021, IEEE Transactions on Wireless Communications
  • "Semisupervised Federated-Learning-Based Intrusion Detection Method for Internet of Things", 2022, IEEE Internet of Things Journal

Ohtsuki has collaborated extensively with several co-authors, including:

  • Guan Gui
  • Mondher Bouazizi
  • Hikmet Sari
  • Yu Wang
  • Kohei Yamamoto

The scientist was awarded the IEEE Fellow distinction in 1984 for contributions to circuit theory and computer-aided circuit analysis. This recognition highlights a significant point in their academic career.

Best Publications

  • A Novel Blockchain-Based Product Ownership Management System (POMS) for Anti-Counterfeits in the Post Supply Chain

    Kentaroh Toyoda;P. Takis Mathiopoulos;Iwao Sasase;Tomoaki Ohtsuki

  • Hate Speech on Twitter: A Pragmatic Approach to Collect Hateful and Offensive Expressions and Perform Hate Speech Detection

    Hajime Watanabe;Mondher Bouazizi;Tomoaki Ohtsuki

  • A Pattern-Based Approach for Sarcasm Detection on Twitter

    Mondher Bouazizi;Tomoaki Otsuki Ohtsuki

  • An Efficient Specific Emitter Identification Method Based on Complex-Valued Neural Networks and Network Compression

    Yu Wang;Guan Gui;Haris Gacanin;Tomoaki Ohtsuki

  • A Novel Intrusion Detection Method Based on Lightweight Neural Network for Internet of Things

    Ruijie Zhao;Guan Gui;Zhi Xue;Jie Yin

  • A Pattern-Based Approach for Multi-Class Sentiment Analysis in Twitter

    Mondher Bouazizi;Tomoaki Ohtsuki

  • Design criteria for phase sequences in selected mapping

    N. Ohkubo;T. Ohtsuki

  • Multiple-subcarrier modulation in optical wireless communications

    T. Ohtsuki

  • Pre-Rake Diversity Combining for UWB Systems in IEEE 802.15 UWB Multipath Channel

    Shunsuke Imada;Tomoaki Ohtsuki

  • Performance analysis of direct-detection optical asynchronous CDMA systems with double optical hard-limiters

    T. Ohtsuki

  • Deep Reinforcement Learning for Economic Dispatch of Virtual Power Plant in Internet of Energy

    Lin Lin;Xin Guan;Yu Peng;Ning Wang

  • Semisupervised Federated-Learning-Based Intrusion Detection Method for Internet of Things

    Unknown

  • Performance analysis of atmospheric optical PPM CDMA systems

    T. Ohtsuki

  • Multi-Task Learning for Generalized Automatic Modulation Classification Under Non-Gaussian Noise With Varying SNR Conditions

    Yu Wang;Guan Gui;Tomoaki Ohtsuki;Fumiyuki Adachi

  • Low-density parity-check (LDPC) coded OFDM systems

    H. Futaki;T. Ohtsuki

  • Direct-detection optical synchronous CDMA systems with double optical hard-limiters using modified prime sequence codes

    T. Ohtsuki;K. Sato;I. Sasase;S. Mori

  • A Deep Learning-Based Low Overhead Beam Selection in mmWave Communications

    Haruhi Echigo;Yuwen Cao;Mondher Bouazizi;Tomoaki Ohtsuki

  • A peak to average power ratio reduction of multicarrier CDMA using selected mapping

    N. Ohkubo;T. Ohtsuki

  • Multi-Class Sentiment Analysis on Twitter: Classification Performance and Challenges

    Mondher Bouazizi;Tomoaki Ohtsuki

  • RSS-Based Localization in Environments with Different Path Loss Exponent for Each Link

    J. Shirahama;T. Ohtsuki

  • Performance of low-density parity-check (LDPC) coded OFDM systems

    H. Futaki;T. Ohtsuki

  • BER performance of turbo-coded PPM CDMA systems on optical fiber

    T. Ohtsuki;J.M. Kahn

  • Performance evaluation of UWB-IR and DS-UWB with MMSE-frequency domain equalization (FDE)

    Y. Ishiyama;T. Ohtsuki

Frequent Co-Authors

Guan Gui
Guan Gui Nanjing University of Posts and Telecommunications
Fumiyuki Adachi
Fumiyuki Adachi Tohoku University
Min Chen
Min Chen South China University of Technology
Joseph M. Kahn
Joseph M. Kahn Stanford University
Pooi Yuen Kam
Pooi Yuen Kam Chinese University of Hong Kong, Shenzhen
P. Takis Mathiopoulos
P. Takis Mathiopoulos National and Kapodistrian University of Athens
Guangjie Han
Guangjie Han Hohai University
Haris Gacanin
Haris Gacanin RWTH Aachen University
Hikmet Sari
Hikmet Sari Nanjing University of Posts and Telecommunications
Zhipeng Cai
Zhipeng Cai Georgia State University

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