Citation Rankings
Highly Cited Researchers

Highly Cited Researchers 436 Scientists Citation Rankings - 2025

The Citation Rankings (Highly Cited Researchers) list highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.

* Total Citation Counts Rankings
Ranking Based On Selection: 1
Greece
Alkiviadis Vatopoulos
Public health microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,251
11,790
0.486
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Greece
Theodoros N Sergentanis
Epidemiology
Meta-analysis
Systematic reviews
Research methodology
Biostatistics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,395
8,677
0.564
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Greece
Evangelos Bellos
Thermodynamics
Refrigeration
ORC
Solar Collector
Energy in Buildings
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,340
12,498
0.815
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Greece
Pantelis Nikolaidis
Kinesiology
Exercise Physiology
Exercise Testing
Sports Sciences
Sports Nutrition
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,818
10,892
0.788
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Greece
John Kaldellis
ΕΝΕΡΓΕΙΑ
ΠΕΡΙΒΑΛΛΟΝ
ΟΙΚΟΝΟΜΙΚΟΤΕΧΝΙΚΗ ΑΞΙΟΛΟΓΗΣΗ
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,681
4,546
0.358
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Greece
Theodoros Xanthos
Resuscitation
physiology
pharmacology
pathophysiology
medical education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,950
5,019
0.420
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Greece
Nikos Maniadakis
Health Economics
Health Management
Health Policy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,765
5,640
0.479
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Greece
Athanasios (Thanos) Voulodimos
Machine Learning
Artificial Intelligence
Image Analysis
Multimodal Data Fusion
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,709
6,432
0.834
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Greece
Apostolos Beloukas
Virology
Molecular Epidemiology
Microbiology
Microbial Genomics
Infectious Diseases
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,998
5,005
0.715
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Greece
Grammati Pantziou|Grammati E. Pantziou
Design of Algorithms
Parallel and Distributed Computing
Pervasive Computing
Wireless Sensor
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,654
2,186
0.387
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Greece
Areti Lagiou
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,557
2,841
0.511
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Greece
Panagiotis Zoumpoulakis
Bioactive Compounds
Nutraceuticals
Novel Food
Metabolomics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,400
3,129
0.579
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Greece
Anastasios Dounis
Computational Intelligence
Machine Learning
Medical Diagnosis
Intelligent Control
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,989
2,139
0.429
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Greece
Ioannis Sarris
Fluid Mechanics and Magnetohydrodynamics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,931
3,936
0.798
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Greece
Christos Troussas
Personalization Systems
Human-Machine Communication
Human-centered Artificial Intelligence
User Experience Research
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,917
4,400
0.895
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Greece
Adonis Bogris|Antonis Bogris
optical communications
optical sensors
neuromorphic photonics
photonic integrated circuits
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,728
1,580
0.334
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Greece
Emilia Kondili
Process Systems Engineering
Optimisation of industrial
energy and environmental systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,909
1,026
0.262
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Greece
Ioannis Kandarakis
Medical Physics
Radiation Physics
Biomedical
Materials
Luminescence
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,771
1,120
0.297
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Greece
John Or Ioannis Tsaknis
Food Sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,765
1,326
0.352
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Greece
Georgina Tzanakaki
Public Health Microbiology
bacterial meningitis
molecular epidemiology
molecular microbiology
Vaccine Preventable Diseases
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,682
1,021
0.277
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Greece
Cleo Sgouropoulou
Software Engineering
Learning Technologies
Intelligent and Adaptive e-Learning Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,551
3,248
0.915
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Greece
Sinanoglou J Vassilia
Analytical Chemistry
Bioactive compounds
Food Image Analysis
Instrumental Analysis
Chemometrics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,446
1,780
0.517
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Greece
Akrivi Krouska
Artificial Intelligence Systems
Multimedia Applications
Adaptive Software
VR/AR Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,404
3,273
0.962
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Greece
Dimitrios Stasinopoulos
tendinopathy
physical modalities (agents)
soft tissue techniques
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,225
1,329
0.412
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Greece
Andreas Theodorakakos
Computational Fluid Dynamics
Internal Combustion Engines
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,196
902
0.282
* Total Citation Counts Rankings
Rankings
31,610
Greece
132
1
Ranking Based On Selection: 1
Alkiviadis Vatopoulos
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,251
11,790
0.486
* Total Citation Counts Rankings
Rankings
59,066
Greece
276
2
Ranking Based On Selection: 2
Theodoros N Sergentanis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,395
8,677
0.564
Epidemiology
Meta-analysis
Systematic reviews
Research methodology
Biostatistics
* Total Citation Counts Rankings
Rankings
59,367
Greece
277
3
Ranking Based On Selection: 3
Evangelos Bellos
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,340
12,498
0.815
Thermodynamics
Refrigeration
ORC
Solar Collector
Energy in Buildings
* Total Citation Counts Rankings
Rankings
68,019
Greece
330
4
Ranking Based On Selection: 4
Pantelis Nikolaidis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,818
10,892
0.788
Kinesiology
Exercise Physiology
Exercise Testing
Sports Sciences
Sports Nutrition
* Total Citation Counts Rankings
Rankings
75,813
Greece
377
5
Ranking Based On Selection: 5
John Kaldellis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,681
4,546
0.358
ΕΝΕΡΓΕΙΑ
ΠΕΡΙΒΑΛΛΟΝ
ΟΙΚΟΝΟΜΙΚΟΤΕΧΝΙΚΗ ΑΞΙΟΛΟΓΗΣΗ
* Total Citation Counts Rankings
Rankings
81,466
Greece
415
6
Ranking Based On Selection: 6
Theodoros Xanthos
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,950
5,019
0.420
Resuscitation
physiology
pharmacology
pathophysiology
medical education
* Total Citation Counts Rankings
Rankings
83,076
Greece
430
7
Ranking Based On Selection: 7
Nikos Maniadakis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,765
5,640
0.479
Health Economics
Health Management
Health Policy
* Total Citation Counts Rankings
Rankings
134,590
Greece
824
8
Ranking Based On Selection: 8
Athanasios (Thanos) Voulodimos
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,709
6,432
0.834
Machine Learning
Artificial Intelligence
Image Analysis
Multimodal Data Fusion
* Total Citation Counts Rankings
Rankings
149,188
Greece
948
9
Ranking Based On Selection: 9
Apostolos Beloukas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,998
5,005
0.715
Virology
Molecular Epidemiology
Microbiology
Microbial Genomics
Infectious Diseases
* Total Citation Counts Rankings
Rankings
185,346
Greece
1,293
10
Ranking Based On Selection: 10
Grammati Pantziou|Grammati E. Pantziou
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,654
2,186
0.387
Design of Algorithms
Parallel and Distributed Computing
Pervasive Computing
Wireless Sensor
* Total Citation Counts Rankings
Rankings
188,411
Greece
1,321
11
Ranking Based On Selection: 11
Areti Lagiou
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,557
2,841
0.511
* Total Citation Counts Rankings
Rankings
193,771
Greece
1,371
12
Ranking Based On Selection: 12
Panagiotis Zoumpoulakis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,400
3,129
0.579
Bioactive Compounds
Nutraceuticals
Novel Food
Metabolomics
* Total Citation Counts Rankings
Rankings
209,403
Greece
1,507
13
Ranking Based On Selection: 13
Anastasios Dounis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,989
2,139
0.429
Computational Intelligence
Machine Learning
Medical Diagnosis
Intelligent Control
* Total Citation Counts Rankings
Rankings
211,693
Greece
1,523
14
Ranking Based On Selection: 14
Ioannis Sarris
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,931
3,936
0.798
* Total Citation Counts Rankings
Rankings
212,278
Greece
1,531
15
Ranking Based On Selection: 15
Christos Troussas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,917
4,400
0.895
Personalization Systems
Human-Machine Communication
Human-centered Artificial Intelligence
User Experience Research
* Total Citation Counts Rankings
Rankings
220,364
Greece
1,615
16
Ranking Based On Selection: 16
Adonis Bogris|Antonis Bogris
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,728
1,580
0.334
optical communications
optical sensors
neuromorphic photonics
photonic integrated circuits
* Total Citation Counts Rankings
Rankings
262,436
Greece
2,018
17
Ranking Based On Selection: 17
Emilia Kondili
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,909
1,026
0.262
Process Systems Engineering
Optimisation of industrial
energy and environmental systems
* Total Citation Counts Rankings
Rankings
270,731
Greece
2,088
18
Ranking Based On Selection: 18
Ioannis Kandarakis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,771
1,120
0.297
Medical Physics
Radiation Physics
Biomedical
Materials
Luminescence
* Total Citation Counts Rankings
Rankings
271,086
Greece
2,092
19
Ranking Based On Selection: 19
John Or Ioannis Tsaknis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,765
1,326
0.352
* Total Citation Counts Rankings
Rankings
276,400
Greece
2,137
20
Ranking Based On Selection: 20
Georgina Tzanakaki
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,682
1,021
0.277
Public Health Microbiology
bacterial meningitis
molecular epidemiology
molecular microbiology
Vaccine Preventable Diseases
* Total Citation Counts Rankings
Rankings
285,135
Greece
2,227
21
Ranking Based On Selection: 21
Cleo Sgouropoulou
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,551
3,248
0.915
Software Engineering
Learning Technologies
Intelligent and Adaptive e-Learning Systems
* Total Citation Counts Rankings
Rankings
292,667
Greece
2,294
22
Ranking Based On Selection: 22
Sinanoglou J Vassilia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,446
1,780
0.517
Analytical Chemistry
Bioactive compounds
Food Image Analysis
Instrumental Analysis
Chemometrics
* Total Citation Counts Rankings
Rankings
295,744
Greece
2,314
23
Ranking Based On Selection: 23
Akrivi Krouska
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,404
3,273
0.962
Artificial Intelligence Systems
Multimedia Applications
Adaptive Software
VR/AR Systems
* Total Citation Counts Rankings
Rankings
309,398
Greece
2,443
24
Ranking Based On Selection: 24
Dimitrios Stasinopoulos
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,225
1,329
0.412
tendinopathy
physical modalities (agents)
soft tissue techniques
* Total Citation Counts Rankings
Rankings
311,844
Greece
2,464
25
Ranking Based On Selection: 25
Andreas Theodorakakos
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,196
902
0.282
Computational Fluid Dynamics
Internal Combustion Engines