World's Best Scientists 2026 revealed!

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Mechanical and Aerospace Engineering 48 1253 1151 25 25 439 14122
Electronics and Electrical Engineering 48 3016 2892 86 85 439 14141

Hyo-Sung Ahn publications per year

The chart shows the history of publications by Hyo-Sung Ahn between 1990 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Hyo-Sung Ahn published across 36 years, from 1990 to 2025, averaging 14.4 papers a year. Output peaked at 40 publications in 2014. 46 of the 517 publications appeared in the last two years.

No. of publications
10 20 30 40
Bar chart. Horizontal axis: year, 1990 to 2025. Vertical axis: number of publications, 0 to 40. Peak 40 publications in 2014. 1990: 1 publication 1991: 0 publications 1992: 0 publications 1993: 0 publications 1994: 0 publications 1995: 0 publications 1996: 0 publications 1997: 0 publications 1998: 0 publications 1999: 0 publications 2000: 0 publications 2001: 0 publications 2002: 1 publication 2003: 5 publications 2004: 3 publications 2005: 9 publications 2006: 13 publications 2007: 28 publications 2008: 18 publications 2009: 27 publications 2010: 24 publications 2011: 26 publications 2012: 21 publications 2013: 28 publications 2014: 40 publications 2015: 28 publications 2016: 24 publications 2017: 38 publications 2018: 29 publications 2019: 27 publications 2020: 29 publications 2021: 11 publications 2022: 20 publications 2023: 21 publications 2024: 30 publications 2025: 16 publications
1990 2025

517 publications in total across all disciplines

View publications per year as a table
Hyo-Sung Ahn: publications per year, 1990 to 2025
Year Publications
1990 1
1991 0
1992 0
1993 0
1994 0
1995 0
1996 0
1997 0
1998 0
1999 0
2000 0
2001 0
2002 1
2003 5
2004 3
2005 9
2006 13
2007 28
2008 18
2009 27
2010 24
2011 26
2012 21
2013 28
2014 40
2015 28
2016 24
2017 38
2018 29
2019 27
2020 29
2021 11
2022 20
2023 21
2024 30
2025 16
Total 517
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Hyo-Sung Ahn publications per year - data summary

  • Hyo-Sung Ahn, a Mechanical and Aerospace Engineering scholar from Gwangju Institute of Science and Technology, has 517 publications recorded across 36 years, from 1990 to 2025.
  • The oldest publication on record dates to 1990 and the most recent to 2025.
  • The most productive year is 2014, with 40 publications.
  • The least productive years with any output are 1990 and 2002, with 1 publication each.
  • 11 of the 36 years in the span carry no publications at all (1991, 1992, 1993, 1994 and others).
  • The rate of publication averages 14.4 papers per year over the whole span, or 20.7 per year counting only the 25 years with at least one publication.
  • The last 5 years on the chart (2021-2025) hold 98 publications, 19% of the career total.
  • Split into equal eras - 1990-2001: 1 publication (0.1 per year); 2002-2013: 203 publications (16.9 per year); 2014-2025: 313 publications (26.1 per year).
  • Comparing the opening and closing eras, the overall trend of publication is rising.

Hyo-Sung Ahn publication distribution in Mechanical and Aerospace Engineering in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Mechanical and Aerospace Engineering in 2026. The highlighted bar marks where Hyo-Sung Ahn sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 63 bars. Horizontal axis: publications, 47–56 to 659+. Vertical axis: number of scientists, 0 to 155. Most scientists, 155, have 147–156 publications. The last bar groups every scientist with 659 publications or more. The highlighted bar, 437–446 publications, is where this scientist sits. 47–56 publications: 10 scientists 57–66 publications: 23 scientists 67–76 publications: 32 scientists 77–86 publications: 62 scientists 87–96 publications: 67 scientists 97–106 publications: 91 scientists 107–116 publications: 113 scientists 117–126 publications: 115 scientists 127–136 publications: 130 scientists 137–146 publications: 140 scientists 147–156 publications: 155 scientists 157–166 publications: 132 scientists 167–176 publications: 133 scientists 177–186 publications: 130 scientists 187–196 publications: 140 scientists 197–206 publications: 115 scientists 207–216 publications: 125 scientists 217–226 publications: 117 scientists 227–236 publications: 99 scientists 237–246 publications: 92 scientists 247–256 publications: 100 scientists 257–266 publications: 95 scientists 267–276 publications: 88 scientists 277–286 publications: 77 scientists 287–296 publications: 74 scientists 297–306 publications: 74 scientists 307–316 publications: 62 scientists 317–326 publications: 70 scientists 327–336 publications: 59 scientists 337–346 publications: 58 scientists 347–356 publications: 45 scientists 357–366 publications: 44 scientists 367–376 publications: 36 scientists 377–386 publications: 41 scientists 387–396 publications: 32 scientists 397–406 publications: 23 scientists 407–416 publications: 28 scientists 417–426 publications: 27 scientists 427–436 publications: 25 scientists 437–446 publications: 23 scientists 447–456 publications: 23 scientists 457–466 publications: 20 scientists 467–476 publications: 12 scientists 477–486 publications: 24 scientists 487–496 publications: 18 scientists 497–506 publications: 12 scientists 507–516 publications: 13 scientists 517–526 publications: 21 scientists 527–536 publications: 12 scientists 537–546 publications: 8 scientists 547–556 publications: 16 scientists 557–566 publications: 3 scientists 567–576 publications: 11 scientists 577–586 publications: 6 scientists 587–596 publications: 5 scientists 597–606 publications: 6 scientists 607–616 publications: 7 scientists 617–626 publications: 7 scientists 627–636 publications: 10 scientists 637–646 publications: 4 scientists 647–656 publications: 3 scientists 657–658 publications: 2 scientists 659+ publications: 100 scientists
47–56 publications 659+

This scientist: 439 publications — 89th percentile

89% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 659 publications or more.

View publications distribution as a table
Number of Mechanical and Aerospace Engineering scientists by publication count, Research.com 2026 ranking edition. Based on 3,445 ranked scientists.
Publications Scientists This scientist
47–56 10
57–66 23
67–76 32
77–86 62
87–96 67
97–106 91
107–116 113
117–126 115
127–136 130
137–146 140
147–156 155
157–166 132
167–176 133
177–186 130
187–196 140
197–206 115
207–216 125
217–226 117
227–236 99
237–246 92
247–256 100
257–266 95
267–276 88
277–286 77
287–296 74
297–306 74
307–316 62
317–326 70
327–336 59
337–346 58
347–356 45
357–366 44
367–376 36
377–386 41
387–396 32
397–406 23
407–416 28
417–426 27
427–436 25
437–446 23 439
447–456 23
457–466 20
467–476 12
477–486 24
487–496 18
497–506 12
507–516 13
517–526 21
527–536 12
537–546 8
547–556 16
557–566 3
567–576 11
577–586 6
587–596 5
597–606 6
607–616 7
617–626 7
627–636 10
637–646 4
647–656 3
657–658 2
659+ 100
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Hyo-Sung Ahn publication distribution in Mechanical and Aerospace Engineering in 2026 - data summary

  • The chart plots the publication count of all 3,445 Mechanical and Aerospace Engineering scientists ranked by Research.com in 2026, grouped into 63 ranges running from 47–56 to 659+ publications.
  • Hyo-Sung Ahn, a Mechanical and Aerospace Engineering scholar from Gwangju Institute of Science and Technology, records 439 publications - the 89th percentile of the discipline.
  • 89% of ranked Mechanical and Aerospace Engineering scientists score the same or lower than Hyo-Sung Ahn, and about 11% score higher.
  • The median of the discipline falls in the 217–226 publications range, and Hyo-Sung Ahn ranks above the median.
  • The most crowded range is 147–156 publications, holding 155 scientists (4% of the field).
  • 46% of the field sits in the lowest quarter of the value range (up to 197–206 publications), so the distribution leans towards the lower end of the scale.
  • The final bar has no upper bound: it groups every scientist with 659 publications or more, 100 scientists in all (3% of the field).

Hyo-Sung Ahn D-index placement in Mechanical and Aerospace Engineering in 2026

The chart shows the D-index (discipline H-index) distribution of Mechanical and Aerospace Engineering scientists ranked by Research.com in 2026. The highlighted bar marks where Hyo-Sung Ahn sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 64 bars. Horizontal axis: D-Index, 30 to 93+. Vertical axis: number of scientists, 0 to 189. Most scientists, 189, have 34 D-Index. The last bar groups every scientist with 93 D-Index or more. The highlighted bar, 48 D-Index, is where this scientist sits. 30 D-Index: 83 scientists 31 D-Index: 113 scientists 32 D-Index: 144 scientists 33 D-Index: 153 scientists 34 D-Index: 189 scientists 35 D-Index: 158 scientists 36 D-Index: 139 scientists 37 D-Index: 127 scientists 38 D-Index: 130 scientists 39 D-Index: 126 scientists 40 D-Index: 104 scientists 41 D-Index: 100 scientists 42 D-Index: 107 scientists 43 D-Index: 101 scientists 44 D-Index: 103 scientists 45 D-Index: 79 scientists 46 D-Index: 88 scientists 47 D-Index: 70 scientists 48 D-Index: 83 scientists 49 D-Index: 44 scientists 50 D-Index: 64 scientists 51 D-Index: 56 scientists 52 D-Index: 50 scientists 53 D-Index: 48 scientists 54 D-Index: 58 scientists 55 D-Index: 52 scientists 56 D-Index: 48 scientists 57 D-Index: 42 scientists 58 D-Index: 34 scientists 59 D-Index: 42 scientists 60 D-Index: 37 scientists 61 D-Index: 42 scientists 62 D-Index: 44 scientists 63 D-Index: 22 scientists 64 D-Index: 33 scientists 65 D-Index: 29 scientists 66 D-Index: 23 scientists 67 D-Index: 29 scientists 68 D-Index: 24 scientists 69 D-Index: 19 scientists 70 D-Index: 34 scientists 71 D-Index: 26 scientists 72 D-Index: 19 scientists 73 D-Index: 18 scientists 74 D-Index: 19 scientists 75 D-Index: 14 scientists 76 D-Index: 19 scientists 77 D-Index: 8 scientists 78 D-Index: 18 scientists 79 D-Index: 16 scientists 80 D-Index: 12 scientists 81 D-Index: 17 scientists 82 D-Index: 11 scientists 83 D-Index: 16 scientists 84 D-Index: 7 scientists 85 D-Index: 9 scientists 86 D-Index: 8 scientists 87 D-Index: 6 scientists 88 D-Index: 6 scientists 89 D-Index: 7 scientists 90 D-Index: 10 scientists 91 D-Index: 4 scientists 92 D-Index: 4 scientists 93+ D-Index: 100 scientists
30 D-Index 93+

This scientist: 48 D-Index — 64th percentile

64% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 93 D-Index or more.

View D-Index distribution as a table
Number of Mechanical and Aerospace Engineering scientists by D-index, Research.com 2026 ranking edition. Based on 3,445 ranked scientists.
D-Index Scientists This scientist
30 83
31 113
32 144
33 153
34 189
35 158
36 139
37 127
38 130
39 126
40 104
41 100
42 107
43 101
44 103
45 79
46 88
47 70
48 83 48
49 44
50 64
51 56
52 50
53 48
54 58
55 52
56 48
57 42
58 34
59 42
60 37
61 42
62 44
63 22
64 33
65 29
66 23
67 29
68 24
69 19
70 34
71 26
72 19
73 18
74 19
75 14
76 19
77 8
78 18
79 16
80 12
81 17
82 11
83 16
84 7
85 9
86 8
87 6
88 6
89 7
90 10
91 4
92 4
93+ 100
Download as CSV

Hyo-Sung Ahn D-index placement in Mechanical and Aerospace Engineering in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 3,445 Mechanical and Aerospace Engineering scientists ranked by Research.com in 2026, grouped into 64 ranges running from 30 to 93+ D-Index.
  • Hyo-Sung Ahn, a Mechanical and Aerospace Engineering scholar from Gwangju Institute of Science and Technology, records 48 D-Index - the 64th percentile of the discipline.
  • 64% of ranked Mechanical and Aerospace Engineering scientists score the same or lower than Hyo-Sung Ahn, and about 36% score higher.
  • The median of the discipline falls in the 43 D-Index range, and Hyo-Sung Ahn ranks above the median.
  • The most crowded range is 34 D-Index, holding 189 scientists (5% of the field).
  • 57% of the field sits in the lowest quarter of the value range (up to 45 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 93 D-Index or more, 100 scientists in all (3% of the field).

Overview

Hyo-Sung Ahn is affiliated with the Gwangju Institute of Science and Technology in South Korea. Their research spans multiple areas in computer science and engineering, with significant contributions in control systems and multi-agent networks.

Their work has been published extensively, with notable papers including:

  • Robust tracking control of bearing-constrained leader-follower formation, 2021, Automatica
  • Continuous-time opinion dynamics on multiple interdependent topics, 2020, Automatica
  • Distributed Robust Adaptive Gradient Controller in Distance-Based Formation Control With Exogenous Disturbance, 2020, IEEE Transactions on Automatic Control
  • Time-Frequency Domain Deep Convolutional Neural Network for Li-Ion Battery SoC Estimation, 2023, IEEE Transactions on Power Electronics
  • Distributed Formation Control of Mobile Agents via Global Orientation Estimation, 2020, IEEE Transactions on Control of Network Systems

Frequent coauthors in their research include:

  • Quoc Van Tran
  • Minh Hoang Trinh
  • Nam-Jin Park
  • Viet Hoang Pham
  • Kevin L. Moore

The venues where Hyo-Sung Ahn commonly publishes reflect the focus of their field and include:

  • arXiv (Cornell University)
  • Automatica
  • IFAC-PapersOnLine
  • International Journal of Robust and Nonlinear Control
  • IEEE Transactions on Control of Network Systems

Their book publication includes Control of Multi-agent Systems (2024), published under Advanced textbooks in control and signal processing.

Research fields associated with Hyo-Sung Ahn cover:

  • Computer Science
  • Engineering

Within these fields, they have specialized in subfields such as:

  • Computer Networks and Communications
  • Control and Systems Engineering
  • Statistical and Nonlinear Physics
  • Electrical and Electronic Engineering
  • Artificial Intelligence

The main topics of their work include:

  • Distributed Control Multi-Agent Systems
  • Neural Networks Stability and Synchronization
  • Adaptive Control of Nonlinear Systems
  • Complex Network Analysis Techniques
  • Opinion Dynamics and Social Influence
  • Mathematical and Theoretical Epidemiology and Ecology Models
  • Stability and Control of Uncertain Systems

Best Publications

  • A survey of multi-agent formation control

    Kwang-Kyo Oh;Myoung-Chul Park;Hyo-Sung Ahn

  • Iterative Learning Control: Brief Survey and Categorization

    Hyo-Sung Ahn;YangQuan Chen;K.L. Moore

  • Robust stability check of fractional order linear time invariant systems with interval uncertainties

    YangQuan Chen;Hyo-Sung Ahn;Igor Podlubny

  • Iterative Learning Control: Robustness and Monotonic Convergence for Interval Systems

    Hyo-Sung Ahn;Kevin L. Moore;YangQuan Chen

  • Robust controllability of interval fractional order linear time invariant systems

    YangQuan Chen;Hyo-Sung Ahn;Dingyü Xue

  • Technical communique: Necessary and sufficient stability condition of fractional-order interval linear systems

    Hyo-Sung Ahn;YangQuan Chen

  • Nonlinear Control of Quadrotor for Point Tracking: Actual Implementation and Experimental Tests

    Young-Cheol Choi;Hyo-Sung Ahn

  • Formation control of mobile agents based on inter-agent distance dynamics

    Kwang-Kyo Oh;Hyo-Sung Ahn

  • Robust stability test of a class of linear time-invariant interval fractional-order system using Lyapunov inequality

    Hyo-Sung Ahn;YangQuan Chen;Igor Podlubny

  • Distance-based undirected formations of single-integrator and double-integrator modeled agents in n-dimensional space

    Kwang-Kyo Oh;Hyo-Sung Ahn

  • Formation Control and Network Localization via Orientation Alignment

    Kwang-Kyo Oh;Hyo-Sung Ahn

  • Fractional-order iterative learning control for fractional-order linear systems

    Yan Li;Yan Li;YangQuan Chen;Hyo-Sung Ahn

  • Environmental-Adaptive RSSI-Based Indoor Localization

    Hyo-Sung Ahn;Wonpil Yu

  • Bearing-Based Formation Control of a Group of Agents With Leader-First Follower Structure

    Minh Hoang Trinh;Shiyu Zhao;Zhiyong Sun;Daniel Zelazo

  • Brief paper: Stability analysis of discrete-time iterative learning control systems with interval uncertainty

    Hyo-Sung Ahn;Kevin L. Moore;YangQuan Chen

  • Trajectory‐keeping in satellite formation flying via robust periodic learning control

    Hyo-Sung Ahn;Kevin L. Moore;YangQuan Chen

  • State-periodic adaptive compensation of cogging and Coulomb friction in permanent-magnet linear motors

    Hyo-Sung Ahn;YangQuan Chen;Huifang Dou

  • Stability and Stabilization of Fractional-Order Linear Systems Subject to Input Saturation

    Young-Hun Lim;Kwang-Kyo Oh;Hyo-Sung Ahn

  • Iterative Learning Control: A Tutorial and Big Picture View

    Kevin L. Moore;YangQuan Chen;Hyo-Sung Ahn

  • Formation Control of Mobile Agents Based on Distributed Position Estimation

    Kwang-Kyo Oh;Hyo-Sung Ahn

  • Iterative learning control for multi-agent formation

    Hyo-Sung Ahn;YangQuan Chen

Frequent Co-Authors

YangQuan Chen
YangQuan Chen University of California, Merced
Kevin L. Moore
Kevin L. Moore Colorado School of Mines
Brian D. O. Anderson
Brian D. O. Anderson Australian National University
Igor Podlubny
Igor Podlubny Technical University of Košice
Baris Fidan
Baris Fidan University of Waterloo
Hyungbo Shim
Hyungbo Shim Seoul National University
Yang Shi
Yang Shi University of Victoria
Joon Ha Kim
Joon Ha Kim Gwangju Institute of Science and Technology
Jiahu Qin
Jiahu Qin University of Science and Technology of China

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