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Hiroaki Ogata

Hiroaki Ogata

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Computer Science 44 7566 7347 105 99 402 8234

Hiroaki Ogata publications per year

The chart shows the history of publications by Hiroaki Ogata between 1994 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Hiroaki Ogata published across 32 years, from 1994 to 2025, averaging 15.8 papers a year. Output peaked at 43 publications in 2024. 63 of the 507 publications appeared in the last two years.

No. of publications
10 20 30 40
Bar chart. Horizontal axis: year, 1994 to 2025. Vertical axis: number of publications, 0 to 43. Peak 43 publications in 2024. 1994: 1 publication 1995: 2 publications 1996: 2 publications 1997: 2 publications 1998: 4 publications 1999: 6 publications 2000: 7 publications 2001: 5 publications 2002: 7 publications 2003: 11 publications 2004: 10 publications 2005: 13 publications 2006: 9 publications 2007: 14 publications 2008: 14 publications 2009: 16 publications 2010: 19 publications 2011: 14 publications 2012: 17 publications 2013: 9 publications 2014: 8 publications 2015: 29 publications 2016: 16 publications 2017: 18 publications 2018: 30 publications 2019: 32 publications 2020: 38 publications 2021: 27 publications 2022: 31 publications 2023: 33 publications 2024: 43 publications 2025: 20 publications
1994 2025

507 publications in total across all disciplines

View publications per year as a table
Hiroaki Ogata: publications per year, 1994 to 2025
Year Publications
1994 1
1995 2
1996 2
1997 2
1998 4
1999 6
2000 7
2001 5
2002 7
2003 11
2004 10
2005 13
2006 9
2007 14
2008 14
2009 16
2010 19
2011 14
2012 17
2013 9
2014 8
2015 29
2016 16
2017 18
2018 30
2019 32
2020 38
2021 27
2022 31
2023 33
2024 43
2025 20
Total 507
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Hiroaki Ogata publications per year - data summary

  • Hiroaki Ogata, a Computer Science scholar from Kyoto University, has 507 publications recorded across 32 years, from 1994 to 2025.
  • The oldest publication on record dates to 1994 and the most recent to 2025.
  • The most productive year is 2024, with 43 publications.
  • The least productive year with any output is 1994, with 1 publication.
  • The rate of publication averages 15.8 papers per year over the whole span, or 15.8 per year counting only the 32 years with at least one publication.
  • The last 5 years on the chart (2021-2025) hold 154 publications, 30% of the career total.
  • Split into equal eras - 1994-2004: 57 publications (5.2 per year); 2005-2015: 162 publications (14.7 per year); 2016-2025: 288 publications (28.8 per year).
  • Comparing the opening and closing eras, the overall trend of publication is rising.

Hiroaki Ogata 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 Hiroaki Ogata 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, 402–411 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: 402 publications — 87th percentile

87% 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
402–411 104 402
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
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
Download as CSV

Hiroaki Ogata publication distribution in Computer Science in 2026 - data summary

  • The chart plots the publication count of all 14,188 Computer Science scientists ranked by Research.com in 2026, grouped into 97 ranges running from 32–41 to 991+ publications.
  • Hiroaki Ogata, a Computer Science scholar from Kyoto University, records 402 publications - the 87th percentile of the discipline.
  • 87% of ranked Computer Science scientists score the same or lower than Hiroaki Ogata, and about 13% score higher.
  • The median of the discipline falls in the 202–211 publications range, and Hiroaki Ogata ranks above the median.
  • The most crowded range is 142–151 publications, holding 609 scientists (4% of the field).
  • 70% of the field sits in the lowest quarter of the value range (up to 272–281 publications), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 991 publications or more, 100 scientists in all (<1% of the field).

Hiroaki Ogata 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 Hiroaki Ogata 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, 44–45 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: 44 D-Index — 48th percentile

48% 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 44
46–47 689
48–49 543
50–51 543
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
Download as CSV

Hiroaki Ogata D-index placement in Computer Science in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 14,188 Computer Science scientists ranked by Research.com in 2026, grouped into 52 ranges running from 30–31 to 131+ D-Index.
  • Hiroaki Ogata, a Computer Science scholar from Kyoto University, records 44 D-Index - the 48th percentile of the discipline.
  • 48% of ranked Computer Science scientists score the same or lower than Hiroaki Ogata, and about 52% score higher.
  • The median of the discipline falls in the 44–45 D-Index range, and Hiroaki Ogata falls inside that same range.
  • The most crowded range is 36–37 D-Index, holding 990 scientists (7% of the field).
  • 71% of the field sits in the lowest quarter of the value range (up to 54–55 D-Index), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 131 D-Index or more, 98 scientists in all (<1% of the field).

Overview

Hiroaki Ogata is affiliated with Kyoto University in Japan and focuses their research primarily within the fields of Computer Science and Social Sciences. Their work spans various subfields including Computer Science Applications, Education, Developmental and Educational Psychology, Artificial Intelligence, and Information Systems.

The main research topics covered by Ogata include:

  • Online Learning and Analytics
  • Innovative Teaching and Learning Methods
  • Intelligent Tutoring Systems and Adaptive Learning
  • Online and Blended Learning
  • Mobile Learning in Education
  • E-Learning and Knowledge Management
  • Software System Performance and Reliability

Ogata has contributed to a substantial number of publications in well-known academic venues. The frequent publication venues where their research appears include:

  • International Conference on Computers in Education
  • Research and Practice in Technology Enhanced Learning
  • Smart Learning Environments
  • Interactive Learning Environments
  • International Journal of Mobile Learning and Organisation

Co-authorship is another notable aspect of their scholarly work. Frequent coauthors are:

  • Rwitajit Majumdar
  • Brendan Flanagan
  • Izumi Horikoshi
  • Yiling Dai
  • Changhao Liang

Their recent papers demonstrate a focus on educational technology and AI in education. Some of these include:

  • Challenges and Future Directions of Big Data and Artificial Intelligence in Education, 2020, Frontiers in Psychology
  • Human-centered artificial intelligence in education: Seeing the invisible through the visible, 2021, Computers and Education Artificial Intelligence
  • Emergency Online Learning in Low-Resource Settings: Effective Student Engagement Strategies, 2021, Education Sciences
  • Goal-oriented active learning (GOAL) system to promote reading engagement, self-directed learning behavior, and motivation in extensive reading, 2021, Computers & Education
  • Multimodal Technologies in Precision Education: Providing New Opportunities or Adding More Challenges?, 2021, Education Sciences

In addition to articles, Ogata has contributed to books published by Springer Science+Business Media. Some titles include:

  • Collaboration Technologies and Social Computing, 2021
  • Blended Learning: Engaging Students in the New Normal Era, 2022
  • Cognitive Cities, 2020

Best Publications

  • Context-aware support for computer-supported ubiquitous learning

    H. Ogata;Y. Yano

  • Challenges and Future Directions of Big Data and Artificial Intelligence in Education

    Hui Luan;Peter Geczy;Hollis Lai;Janice Gobert

  • Human-centered artificial intelligence in education: Seeing the invisible through the visible

    Stephen J.H. Yang;Hiroaki Ogata;Tatsunori Matsui;Nian-Shing Chen

  • Proceedings of The 17th International Conference on Computers in Education

    Siu Cheung Kong;Hiroaki Ogata;Hans Christian Arnseth;Carol K. K. Chan

  • Knowledge awareness map for computer-supported ubiquitous language-learning

    H. Ogata;Y. Yano

  • A neural network approach for students' performance prediction

    F. Okubo;T. Yamashita;A. Shimada;H. Ogata

  • Emergency Online Learning in Low-Resource Settings: Effective Student Engagement Strategies

    Victoria Abou-Khalil;Samar Helou;Eliane Khalifé;MeiRong Alice Chen

  • Computer supported ubiquitous learning environment for vocabulary learning

    Hiroaki Ogata;Chengjiu Yin;Moushir M. El-Bishouty;Yoneo Yano

  • LOCH: supporting mobile language learning outside classrooms

    Hiroaki Ogata;Gan Li Hui;Chengjiu Yin;Takahito Ueda

  • Knowledge awareness for a computer-assisted language learning using handhelds

    Hiroaki Ogata;Yoneo Yano

  • Supporting Mobile Language Learning outside Classrooms

    H. Ogata;Chengjiu Yin;R.G. Paredes;J. Nobuji

  • e-Book-based learning analytics in University education

    Hiroaki Ogata;Chengjiu Yin;Misato Oi;Fumiya Okubo

  • PERKAM: Personalized Knowledge Awareness Map for Computer Supported Ubiquitous Learning.

    Moushir M. El-Bishouty;Hiroaki Ogata;Yoneo Yano

  • Managing lifelong learning records through blockchain

    Patrick Ocheja;Brendan Flanagan;Hiroshi Ueda;Hiroaki Ogata

  • Combining Knowledge Awareness and Information Filtering in an Open-ended Collaborative Learning Environment

    Hiroaki Ogata;Yoneo Yano

  • Goal-oriented active learning (GOAL) system to promote reading engagement, self-directed learning behavior, and motivation in extensive reading

    Huiyong Li;Rwitajit Majumdar;Mei-Rong Alice Chen;Hiroaki Ogata

  • Computer Supported Social Networking For Augmenting Cooperation

    H. Ogata;Y. Yano;N. Furugori;Q. Jin

  • Supporting Knowledge Awareness for a Ubiquitous CSCL

    Hiroaki Ogata;Yoneo Yano

  • Developing and Implementing a Framework of Participatory Simulation for Mobile Learning Using Scaffolding

    Chengjiu Yin;Yanjie Song;Yoshiyuki Tabata;Hiroaki Ogata

  • Computer Supported Ubiquitous Learning Environment for Vocabulary Learning Using RFID Tags

    Hiroaki Ogata;Ryo Akamatsu;Yoneo Yano

  • Social knowledge awareness map for computer supported ubiquitous learning environment

    Moushir M. El-Bishouty;Hiroaki Ogata;Samia Rahman;Yoneo Yano

  • Developing an early-warning system for spotting at-risk students by using eBook interaction logs

    Gökhan Akçapınar;Gökhan Akçapınar;Mohammad Nehal Hasnine;Rwitajit Majumdar;Brendan Flanagan

Frequent Co-Authors

Gwo-Jen Hwang
Gwo-Jen Hwang National Taiwan University of Science and Technology
Stephen J. H. Yang
Stephen J. H. Yang National Central University
Friedrich W. Hesse
Friedrich W. Hesse Leibniz Institute for Neurobiology
Hiromasa Inoue
Hiromasa Inoue Kagoshima University
Toshiharu Ninomiya
Toshiharu Ninomiya Kyushu University
Chee-Kit Looi
Chee-Kit Looi Nanyang Technological University
Yoshihisa Yamashita
Yoshihisa Yamashita Kyushu University
Antonija Mitrovic
Antonija Mitrovic University of Canterbury
Mike Sharples
Mike Sharples The Open University
Abelardo Pardo
Abelardo Pardo University of Adelaide

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