Citation Rankings
Highly Cited Researchers

Engineering & Technology / Computer Science Highly Cited Researchers Citation Rankings (Sort by last 6 years Citation Index) 2025

The Citation Rankings (Highly Cited Researchers) 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.

* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 1
Greece
Grigorios Tsoumakas
Machine Learning
Data Mining
Knowledge Discovery
Natural Language Processing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,727
9,603
0.487
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 2
Greece
Ioannis Vlahavas
Artificial Intelligence
Machine Leraning
Planning
Knowledge Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,601
8,767
0.447
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 3
Greece
I Pitas
Computer vision
machine learning
autonomous systems
digital media
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,023
7,650
0.201
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 4
Greece
Anastasios Tefas
Computational Intelligence
Deep Learning
Robotics
Machine Learning
Computer Vision
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,360
7,455
0.603
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 5
Greece
Fountouli Athina *
Machine Tools
Manufacturing Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,230
6,650
0.299
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 6
Greece
Athena Vakali
Web intelligence
Online Social Networks
WWW
Data Science
Content Delivery Networks
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,598
5,377
0.464
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 7
Greece
Nikolaos Passalis
Deep Learning
Computational Intelligence
Time series Forecasting
Deep Reinforcement Learning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,807
4,639
0.965
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 8
Greece
Ioannis Kavakiotis
Artificial Intelligence
Data Mining
Machine Learning
Bioinformatics
Biomedical Data
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,894
2,627
0.908
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 9
Greece
D Kugiumtzis
computational statistics
time series
machine learning
complex systems network physiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,727
2,272
0.481
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 10
Greece
Ioannis Stamelos
Open Source Software
Software Engineering
Information Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,789
2,085
0.307
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 11
Greece
Constantine Kotropoulos
Audio/Music/Speech/Language Processing
Signal Processing
Pattern Recognition
Multimedia Information Retrieval
Biometrics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,074
2,029
0.224
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 12
Greece
Nikos Nikolaidis
Computer Graphics
Computer Vision
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,532
1,932
0.257
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 13
Greece
Apostolos N Papadopoulos
Databases
Data Mining
Big Data Analytics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,337
1,350
0.311
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 14
Greece
Ioannis Mademlis
Machine Learning
Computer Vision
Autonomous Robotics
Human-Computer Interaction
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,309
1,238
0.946
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 15
Greece
Konstantinos Chatzisavvas
Artificial Intelligence and Machine Learning Applications and Technologies
Statistical Inference
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,827
1,233
0.675
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 16
Greece
Nikolaos Papachristou
machine learning
cancer research
symptom science
healthcare services
data science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,641
1,229
0.749
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 17
Greece
Anastasios Gounaris
Big data
Distributed data management
Workflows
Predictive maintenance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,798
1,170
0.418
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 18
Greece
Dimitris Vrakas
Artificial Intelligence
AI Planning
Ambient Intelligence
Robotics
NILM
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,996
1,112
0.557
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 19
Greece
Avraam Tsantekidis
Machine Learning
Deep Learning
Quantitative Analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,151
1,102
0.957
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 20
Greece
Petros Nicopolitidis
Computer Networks
Wireless Networks
Optical Networks
Nanonetworks
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,538
1,035
0.408
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 21
Greece
Rigas Kotsakis
Audiovisual Analysis
Signal Processing
Semantics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,034
880
0.851
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 22
Greece
Panagiotis Katsaros
Software Security
Verification
Model Checking
Formal Methods
Software Architecture
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,883
768
0.408
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 23
Greece
Stelios Zygouris
computerized cognitive testing
mild cognitive impairment
subjective cognitive impairment
serious
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
940
765
0.814
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 24
Greece
Emmanouil S Rigas
Artificial intelligence
Multi-agent systems
optimization
search algorithms
electric vehicles
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
869
711
0.818
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 25
Greece
Maximos Kaliakatsos Papakostas
AI in Music
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,028
641
0.624
* Last 6 Years Citation Counts Rankings
Rankings
38,676
Greece
184
20
Ranking Based On Selection: 1
Grigorios Tsoumakas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,727
9,603
0.487
Machine Learning
Data Mining
Knowledge Discovery
Natural Language Processing
* Last 6 Years Citation Counts Rankings
Rankings
44,093
Greece
213
23
Ranking Based On Selection: 2
Ioannis Vlahavas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,601
8,767
0.447
Artificial Intelligence
Machine Leraning
Planning
Knowledge Systems
* Last 6 Years Citation Counts Rankings
Rankings
53,490
Greece
254
30
Ranking Based On Selection: 3
I Pitas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,023
7,650
0.201
Computer vision
machine learning
autonomous systems
digital media
* Last 6 Years Citation Counts Rankings
Rankings
55,484
Greece
267
32
Ranking Based On Selection: 4
Anastasios Tefas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,360
7,455
0.603
Computational Intelligence
Deep Learning
Robotics
Machine Learning
Computer Vision
* Last 6 Years Citation Counts Rankings
Rankings
65,014
Greece
312
40
Ranking Based On Selection: 5
Fountouli Athina *
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,230
6,650
0.299
* Last 6 Years Citation Counts Rankings
Rankings
85,870
Greece
436
61
Ranking Based On Selection: 6
Athena Vakali
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,598
5,377
0.464
Web intelligence
Online Social Networks
WWW
Data Science
Content Delivery Networks
* Last 6 Years Citation Counts Rankings
Rankings
103,387
Greece
572
83
Ranking Based On Selection: 7
Nikolaos Passalis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,807
4,639
0.965
Deep Learning
Computational Intelligence
Time series Forecasting
Deep Reinforcement Learning
* Last 6 Years Citation Counts Rankings
Rankings
199,284
Greece
1,269
173
Ranking Based On Selection: 8
Ioannis Kavakiotis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,894
2,627
0.908
Artificial Intelligence
Data Mining
Machine Learning
Bioinformatics
Biomedical Data
* Last 6 Years Citation Counts Rankings
Rankings
231,904
Greece
1,519
206
Ranking Based On Selection: 9
D Kugiumtzis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,727
2,272
0.481
computational statistics
time series
machine learning
complex systems network physiology
* Last 6 Years Citation Counts Rankings
Rankings
253,018
Greece
1,693
226
Ranking Based On Selection: 10
Ioannis Stamelos
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,789
2,085
0.307
Open Source Software
Software Engineering
Information Systems
* Last 6 Years Citation Counts Rankings
Rankings
259,948
Greece
1,754
232
Ranking Based On Selection: 11
Constantine Kotropoulos
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,074
2,029
0.224
Audio/Music/Speech/Language Processing
Signal Processing
Pattern Recognition
Multimedia Information Retrieval
Biometrics
* Last 6 Years Citation Counts Rankings
Rankings
272,768
Greece
1,867
244
Ranking Based On Selection: 12
Nikos Nikolaidis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,532
1,932
0.257
* Last 6 Years Citation Counts Rankings
Rankings
377,307
Greece
2,705
361
Ranking Based On Selection: 13
Apostolos N Papadopoulos
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,337
1,350
0.311
* Last 6 Years Citation Counts Rankings
Rankings
405,472
Greece
2,943
400
Ranking Based On Selection: 14
Ioannis Mademlis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,309
1,238
0.946
Machine Learning
Computer Vision
Autonomous Robotics
Human-Computer Interaction
* Last 6 Years Citation Counts Rankings
Rankings
406,737
Greece
2,948
402
Ranking Based On Selection: 15
Konstantinos Chatzisavvas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,827
1,233
0.675
Artificial Intelligence and Machine Learning Applications and Technologies
Statistical Inference
* Last 6 Years Citation Counts Rankings
Rankings
407,864
Greece
2,964
405
Ranking Based On Selection: 16
Nikolaos Papachristou
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,641
1,229
0.749
machine learning
cancer research
symptom science
healthcare services
data science
* Last 6 Years Citation Counts Rankings
Rankings
423,859
Greece
3,105
424
Ranking Based On Selection: 17
Anastasios Gounaris
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,798
1,170
0.418
Big data
Distributed data management
Workflows
Predictive maintenance
* Last 6 Years Citation Counts Rankings
Rankings
441,118
Greece
3,241
448
Ranking Based On Selection: 18
Dimitris Vrakas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,996
1,112
0.557
Artificial Intelligence
AI Planning
Ambient Intelligence
Robotics
NILM
* Last 6 Years Citation Counts Rankings
Rankings
444,349
Greece
3,265
454
Ranking Based On Selection: 19
Avraam Tsantekidis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,151
1,102
0.957
Machine Learning
Deep Learning
Quantitative Analysis
* Last 6 Years Citation Counts Rankings
Rankings
465,775
Greece
3,426
481
Ranking Based On Selection: 20
Petros Nicopolitidis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,538
1,035
0.408
Computer Networks
Wireless Networks
Optical Networks
Nanonetworks
* Last 6 Years Citation Counts Rankings
Rankings
523,198
Greece
3,916
564
Ranking Based On Selection: 21
Rigas Kotsakis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,034
880
0.851
Audiovisual Analysis
Signal Processing
Semantics
* Last 6 Years Citation Counts Rankings
Rankings
571,900
Greece
4,288
619
Ranking Based On Selection: 22
Panagiotis Katsaros
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,883
768
0.408
Software Security
Verification
Model Checking
Formal Methods
Software Architecture
* Last 6 Years Citation Counts Rankings
Rankings
573,590
Greece
4,308
623
Ranking Based On Selection: 23
Stelios Zygouris
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
940
765
0.814
computerized cognitive testing
mild cognitive impairment
subjective cognitive impairment
serious
* Last 6 Years Citation Counts Rankings
Rankings
600,337
Greece
4,516
651
Ranking Based On Selection: 24
Emmanouil S Rigas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
869
711
0.818
Artificial intelligence
Multi-agent systems
optimization
search algorithms
electric vehicles
* Last 6 Years Citation Counts Rankings
Rankings
637,742
Greece
4,818
694
Ranking Based On Selection: 25
Maximos Kaliakatsos Papakostas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,028
641
0.624