Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 309 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 211 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
Mobile Learning
Blended Learning
Collaborative Learning
Digital Competence
Internet of Things
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,361
5,639
0.496
Get Full Access to Premium Data
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Telecommunication Networks
Internet of Things
Cybersecurity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,476
9,523
0.909
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Digital Government
Information Systems for Manufacturing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,867
2,135
0.241
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Networking & Telecommunications
Artificial Intelligence & Image Processing
Com/Info Theory
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,170
6,237
0.763
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Software Engineering
Object-Oriented Design
Software Maintenance
Software Evolution
Technical Debt
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,678
3,728
0.486
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Environmental Engineering
Wastewater Engineering
Advanced Oxidation Processes
photocatalysis
environmental catalysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,100
4,978
0.701
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Design and development of heterogeneous catalysts
Environmental catalysis (NOx
SO2
H2S)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,908
4,889
0.708
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Biomedical Signal Processing
Medical Informatics
Neuroscience
Artificial Intelligence
Health AI
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,842
3,472
0.507
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Strategy
New Service Development
Innovation
Digital Transformation
Entrepreneurship
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,532
4,801
0.868
Is Your University Ready for the Future?
Compare your institution’s global, national, and city-level ranking with its 20 closest competitors and set strategic goals.
Gain insights from detailed performance analyses of scientists across 13 major disciplines, identify your strengths, improve weaknesses, and gain a competitive edge.. Check Your Free Sample Performance Analysis
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Heterogeneous catalysis
Catalyst synthesis and characterization
Hydrogen production
Reforming
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,058
4,337
0.857
* Total Citation Counts Rankings
Ranking Based On Selection: 11
eGovernment
eParticipation
eLearning
eHealth
Information Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,032
1,859
0.369
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Information systems and E-business
E-mobile marketing
social media marketing
social networks
ICT innovation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,027
2,289
0.455
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Neurobiology
Neuroanatomy
Neurohistology
Neuropathology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,477
867
0.194
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Econometrics
Time Series Econometrics
Macroeconometrics
Financial Econometrics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,464
2,456
0.550
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Parallel and Distributed Computing
Intelligent Systems
Computer Mathematics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,306
1,103
0.256
* Total Citation Counts Rankings
Ranking Based On Selection: 16
econometrics
applied economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,156
1,504
0.362
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Quality of Farm Animal Products
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,133
1,381
0.334
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Econometrics
Applied Macroeconomics
International Finance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,884
961
0.247
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Renewable Energy
Solar Energy
Sustainability
Environmental Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,799
1,445
0.380
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Educational technology
Computational thinking
AI in education
VR/AR in education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,782
3,171
0.838
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Heterogeneous catalysis
Electrochemical engineering
Biomass thermochemical conversion
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,689
1,836
0.498
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Corporate Social Responsibility
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,541
2,457
0.694
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Machine learning
Optimization
Decision-making
Automatic Control
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,528
739
0.209
* Total Citation Counts Rankings
Ranking Based On Selection: 24
eddy current testing
computational electromagnetics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,392
1,116
0.329
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Software Engineering
Cloud Computing
Software Cost Estimation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,089
2,473
0.801
* Total Citation Counts Rankings
Rankings
88,186
465
1
Ranking Based On Selection: 1
Anastasios A Economides
University of Macedonia
Thessaloniki, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,361
5,639
0.496
Mobile Learning
Blended Learning
Collaborative Learning
Digital Competence
Internet of Things
* Total Citation Counts Rankings
Rankings
97,087
525
1
Ranking Based On Selection: 2
Panagiotis Sarigiannidis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,476
9,523
0.909
Telecommunication Networks
Internet of Things
Cybersecurity
* Total Citation Counts Rankings
Rankings
117,364
672
2
Ranking Based On Selection: 3
Konstantinos Tarabanis
University of Macedonia
Thessaloniki, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,867
2,135
0.241
* Total Citation Counts Rankings
Rankings
128,570
757
3
Ranking Based On Selection: 4
Konstantinos E Psannis
University of Macedonia
Thessaloniki, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,170
6,237
0.763
Networking & Telecommunications
Artificial Intelligence & Image Processing
Com/Info Theory
* Total Citation Counts Rankings
Rankings
137,694
850
4
Ranking Based On Selection: 5
Alexander Chatzigeorgiou
University of Macedonia
Thessaloniki, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,678
3,728
0.486
Software Engineering
Object-Oriented Design
Software Maintenance
Software Evolution
Technical Debt
* Total Citation Counts Rankings
Rankings
149,537
944
2
Ranking Based On Selection: 6
Zacharias Frontistis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,100
4,978
0.701
Environmental Engineering
Wastewater Engineering
Advanced Oxidation Processes
photocatalysis
environmental catalysis
* Total Citation Counts Rankings
Rankings
153,867
976
3
Ranking Based On Selection: 7
Maria A Goula
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,908
4,889
0.708
Design and development of heterogeneous catalysts
Environmental catalysis (NOx
SO2
H2S)
* Total Citation Counts Rankings
Rankings
155,457
997
4
Ranking Based On Selection: 8
Markos G Tsipouras
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,842
3,472
0.507
Biomedical Signal Processing
Medical Informatics
Neuroscience
Artificial Intelligence
Health AI
* Total Citation Counts Rankings
Rankings
192,586
1,342
5
Ranking Based On Selection: 9
Fotis Kitsios
University of Macedonia
Thessaloniki, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,532
4,801
0.868
Strategy
New Service Development
Innovation
Digital Transformation
Entrepreneurship
* Total Citation Counts Rankings
Rankings
210,274
1,501
5
Ranking Based On Selection: 10
Nikolaos Charisiou
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,058
4,337
0.857
Heterogeneous catalysis
Catalyst synthesis and characterization
Hydrogen production
Reforming
Is Your University Ready for the Future?
Compare your institution’s global, national, and city-level ranking with its 20 closest competitors and set strategic goals.
Gain insights from detailed performance analyses of scientists across 13 major disciplines, identify your strengths, improve weaknesses, and gain a competitive edge.. Check Your Free Sample Performance Analysis
* Total Citation Counts Rankings
Rankings
211,301
1,507
6
Ranking Based On Selection: 11
Efthimios Tambouris
University of Macedonia
Thessaloniki, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,032
1,859
0.369
eGovernment
eParticipation
eLearning
eHealth
Information Systems
* Total Citation Counts Rankings
Rankings
211,507
1,509
7
Ranking Based On Selection: 12
Maro Vlachopoulou
University of Macedonia
Thessaloniki, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,027
2,289
0.455
Information systems and E-business
E-mobile marketing
social media marketing
social networks
ICT innovation
* Total Citation Counts Rankings
Rankings
235,872
1,740
8
Ranking Based On Selection: 13
Lazaros C Triarhou
University of Macedonia
Thessaloniki, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,477
867
0.194
Neurobiology
Neuroanatomy
Neurohistology
Neuropathology
* Total Citation Counts Rankings
Rankings
236,452
1,746
9
Ranking Based On Selection: 14
Theodore Panagiotidis
University of Macedonia
Thessaloniki, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,464
2,456
0.550
Econometrics
Time Series Econometrics
Macroeconometrics
Financial Econometrics
* Total Citation Counts Rankings
Rankings
244,362
1,830
10
Ranking Based On Selection: 15
Konstantinos G Margaritis
University of Macedonia
Thessaloniki, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,306
1,103
0.256
Parallel and Distributed Computing
Intelligent Systems
Computer Mathematics
* Total Citation Counts Rankings
Rankings
252,551
1,907
11
Ranking Based On Selection: 16
Nikolaos Dritsakis
University of Macedonia
Thessaloniki, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,156
1,504
0.362
* Total Citation Counts Rankings
Rankings
253,896
1,920
6
Ranking Based On Selection: 17
Eleni Kasapidou
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,133
1,381
0.334
Quality of Farm Animal Products
* Total Citation Counts Rankings
Rankings
268,340
2,057
12
Ranking Based On Selection: 18
Stilianos Fountas|Steve Fountas
University of Macedonia
Thessaloniki, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,884
961
0.247
Econometrics
Applied Macroeconomics
International Finance
* Total Citation Counts Rankings
Rankings
273,553
2,098
7
Ranking Based On Selection: 19
Manolis Souliotis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,799
1,445
0.380
Renewable Energy
Solar Energy
Sustainability
Environmental Engineering
* Total Citation Counts Rankings
Rankings
274,594
2,106
8
Ranking Based On Selection: 20
Nikolaos Pellas, Νικόλαος Πέλλας
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,782
3,171
0.838
Educational technology
Computational thinking
AI in education
VR/AR in education
* Total Citation Counts Rankings
Rankings
280,595
2,161
9
Ranking Based On Selection: 21
George Marnellos
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,689
1,836
0.498
Heterogeneous catalysis
Electrochemical engineering
Biomass thermochemical conversion
* Total Citation Counts Rankings
Rankings
290,649
2,254
10
Ranking Based On Selection: 22
Grigoris Giannarakis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,541
2,457
0.694
Corporate Social Responsibility
* Total Citation Counts Rankings
Rankings
291,595
2,266
13
Ranking Based On Selection: 23
Dimitris Hristu Varsakelis
University of Macedonia
Thessaloniki, Greece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,528
739
0.209
Machine learning
Optimization
Decision-making
Automatic Control
* Total Citation Counts Rankings
Rankings
301,540
2,345
11
Ranking Based On Selection: 24
Theodoros Theodoulidis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,392
1,116
0.329
eddy current testing
computational electromagnetics
* Total Citation Counts Rankings
Rankings
326,070
2,568
12
Ranking Based On Selection: 25
Stamatia Bibi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,089
2,473
0.801
Software Engineering
Cloud Computing
Software Cost Estimation