Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 200 Scientists Citation Rankings - 2025
Discover the world’s highly cited researchers through the AD Scientific Index 2025 Citation Rankings.
These rankings evaluate scientists based on their total and recent citation counts, capturing the breadth and real-time currency of academic recognition. Citation data reveals how widely a scholar’s work is referenced, applied, and extended across diverse disciplines. The rankings are routinely updated to reflect ongoing citation growth, while eliminating distortions from excessive co-authorship and institutional inflation. Premium tools provide access to detailed citation dynamics, unethical citation behavior detection, and field-normalized benchmarking.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
Particle and Astroparticle Physics. Σωματιδιακή και Αστροσωματιδιακή Φυσικ�
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
152,564
80,983
0.531
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* Total Citation Counts Rankings
Ranking Based On Selection: 2
Data Science
Record Linkage
Privac
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,371
3,295
0.266
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Applied Econometrics
Panel Data Analysis
Financial Econometric
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,441
4,792
0.459
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Earthquake Engineering
Structural Dynamics
Finite Elements
Boundary Elements
Structural Engineerin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,294
2,846
0.538
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,921
2,652
0.539
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Wastewater Reuse
Soil pollution
Environmental Geochemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,492
2,348
0.523
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Γεωγραφία
Πολιτισμός
Αρχιτεκτονική
Κοινωνικές επιστήμε�
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,056
1,043
0.257
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Extragalactic radioastronomy
radioSETI
Pulsars & FRBs
Sun and climate
radio Cosmic ray
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,648
1,867
0.512
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,175
1,070
0.337
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* Total Citation Counts Rankings
Ranking Based On Selection: 10
finance
accounting
operational researc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,850
755
0.265
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Artificial Intelligence
Machine Learning
Educatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,347
1,348
0.574
* Total Citation Counts Rankings
Ranking Based On Selection: 12
sustainability in the built environment
zero energy buildings
resilient citie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,807
691
0.382
* Total Citation Counts Rankings
Ranking Based On Selection: 13
lighting design
energy and buildings
architectural visualisation
building simulation
open and distance educatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,597
871
0.545
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Untargeted metabolomics
Targeted Analysis
Human Biomonitoring
Exposur
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,570
985
0.627
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Statistics
Total Quality Management
Quality Control
Taguchi Method
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,428
120
0.084
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,338
538
0.402
* Total Citation Counts Rankings
Ranking Based On Selection: 17
HCI
UCD
EUD
IoT
Am
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,168
306
0.262
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Distance Learning
Virtual Reality
Modeling Students' Behaviour
Community Detectio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,145
451
0.394
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Earthquake engineering
Applied mechanics
Dynamics
Damping
Steel structure
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,127
809
0.718
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Financial Economics
Economics of Banking
Empirical Economics
Econometric Methods and Applications
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,127
532
0.472
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Tourism Management
Tourism Studie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,107
840
0.759
* Total Citation Counts Rankings
Ranking Based On Selection: 22
history of science
science and literatur
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,021
299
0.293
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Educational Technology
Interoperability of IS
Data Management
Search Engines
Digital Librarie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,006
442
0.439
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Dynamical Systems
Differential Equations
Partial Differential Equations
Nonlinear Scienc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
982
412
0.420
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Marxism
Social Philosophy
Political Philosophy
Contemporary Social Theory
Communis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
925
499
0.539
* Total Citation Counts Rankings
Rankings
1,484
21
1
Ranking Based On Selection: 1
Antonis Leisos
Hellenic Open University
Patras, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
152,564
80,983
0.531
Particle and Astroparticle Physics. Σωματιδιακή και Αστροσωματιδιακή Φυσικ�
* Total Citation Counts Rankings
Rankings
81,415
406
2
Ranking Based On Selection: 2
Vassilios Verykios
Hellenic Open University
Patras, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,371
3,295
0.266
Data Science
Record Linkage
Privac
* Total Citation Counts Rankings
Rankings
99,713
547
3
Ranking Based On Selection: 3
Dimitrios Asteriou
Hellenic Open University
Patras, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,441
4,792
0.459
Applied Econometrics
Panel Data Analysis
Financial Econometric
* Total Citation Counts Rankings
Rankings
205,545
1,454
4
Ranking Based On Selection: 4
George D Hatzigeorgiou
Hellenic Open University
Patras, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,294
2,846
0.538
Earthquake Engineering
Structural Dynamics
Finite Elements
Boundary Elements
Structural Engineerin
* Total Citation Counts Rankings
Rankings
220,579
1,588
5
Ranking Based On Selection: 5
Zervas Efthimios
Hellenic Open University
Patras, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,921
2,652
0.539
* Total Citation Counts Rankings
Rankings
240,122
1,775
6
Ranking Based On Selection: 6
Ioannis K Kalavrouziotis
Hellenic Open University
Patras, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,492
2,348
0.523
Wastewater Reuse
Soil pollution
Environmental Geochemistr
* Total Citation Counts Rankings
Rankings
263,833
1,997
7
Ranking Based On Selection: 7
Lila Leontidou
Hellenic Open University
Patras, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,056
1,043
0.257
* Total Citation Counts Rankings
Rankings
289,162
2,235
8
Ranking Based On Selection: 8
Nectaria Gizani
Hellenic Open University
Patras, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,648
1,867
0.512
Extragalactic radioastronomy
radioSETI
Pulsars & FRBs
Sun and climate
radio Cosmic ray
* Total Citation Counts Rankings
Rankings
325,262
2,553
9
Ranking Based On Selection: 9
Ioanna Vekiri
Hellenic Open University
Patras, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,175
1,070
0.337
* Total Citation Counts Rankings
Rankings
355,028
2,824
10
Ranking Based On Selection: 10
Augustinos Dimitras
Hellenic Open University
Patras, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,850
755
0.265
finance
accounting
operational researc
Smart Institutional Plan
Powerful Insights + Smart Membership = Institutional Success
Unlock 360° Real-Time Institutional Analysis to identify your institution’s strengths and areas for improvement.
* Total Citation Counts Rankings
Rankings
412,306
3,381
11
Ranking Based On Selection: 11
Dimitris Kalles
Hellenic Open University
Patras, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,347
1,348
0.574
Artificial Intelligence
Machine Learning
Educatio
* Total Citation Counts Rankings
Rankings
496,500
4,120
12
Ranking Based On Selection: 12
Eleftheria Alexandri
Hellenic Open University
Patras, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,807
691
0.382
sustainability in the built environment
zero energy buildings
resilient citie
* Total Citation Counts Rankings
Rankings
538,256
4,504
13
Ranking Based On Selection: 13
Stelios Stylianos Zerefos
Hellenic Open University
Patras, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,597
871
0.545
lighting design
energy and buildings
architectural visualisation
building simulation
open and distance educatio
* Total Citation Counts Rankings
Rankings
544,082
4,563
14
Ranking Based On Selection: 14
Catherine Gabriel
Hellenic Open University
Patras, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,570
985
0.627
Untargeted metabolomics
Targeted Analysis
Human Biomonitoring
Exposur
* Total Citation Counts Rankings
Rankings
577,254
4,808
15
Ranking Based On Selection: 15
N Logothetis
Hellenic Open University
Patras, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,428
120
0.084
Statistics
Total Quality Management
Quality Control
Taguchi Method
* Total Citation Counts Rankings
Rankings
600,127
4,980
16
Ranking Based On Selection: 16
Theofanis Orphanoudakis
Hellenic Open University
Patras, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,338
538
0.402
* Total Citation Counts Rankings
Rankings
648,723
5,354
17
Ranking Based On Selection: 17
Irene Mavrommati
Hellenic Open University
Patras, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,168
306
0.262
* Total Citation Counts Rankings
Rankings
655,713
5,417
18
Ranking Based On Selection: 18
Evgenia Paxinou
Hellenic Open University
Patras, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,145
451
0.394
Distance Learning
Virtual Reality
Modeling Students' Behaviour
Community Detectio
* Total Citation Counts Rankings
Rankings
661,284
5,459
19
Ranking Based On Selection: 19
George A Papagiannopoulos
Hellenic Open University
Patras, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,127
809
0.718
Earthquake engineering
Applied mechanics
Dynamics
Damping
Steel structure
* Total Citation Counts Rankings
Rankings
661,416
5,462
20
Ranking Based On Selection: 20
Chris Tsoumas
Hellenic Open University
Patras, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,127
532
0.472
Financial Economics
Economics of Banking
Empirical Economics
Econometric Methods and Applications
* Total Citation Counts Rankings
Rankings
667,637
5,515
21
Ranking Based On Selection: 21
Dimitrios Stergiou
Hellenic Open University
Patras, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,107
840
0.759
Tourism Management
Tourism Studie
* Total Citation Counts Rankings
Rankings
697,344
5,761
22
Ranking Based On Selection: 22
George Vlahakis
Hellenic Open University
Patras, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,021
299
0.293
history of science
science and literatur
* Total Citation Counts Rankings
Rankings
702,523
5,791
23
Ranking Based On Selection: 23
Fotis Lazarinis|Fotis Lazarinis, F Lazarinis, Φώτης Λαζαρίνης
Hellenic Open University
Patras, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,006
442
0.439
Educational Technology
Interoperability of IS
Data Management
Search Engines
Digital Librarie
* Total Citation Counts Rankings
Rankings
711,274
5,859
24
Ranking Based On Selection: 24
Nikolaos Karachalios
Hellenic Open University
Patras, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
982
412
0.420
Dynamical Systems
Differential Equations
Partial Differential Equations
Nonlinear Scienc
* Total Citation Counts Rankings
Rankings
732,764
6,019
25
Ranking Based On Selection: 25
Panagiotis Sotiris
Hellenic Open University
Patras, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
925
499
0.539
Marxism
Social Philosophy
Political Philosophy
Contemporary Social Theory
Communis