Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: 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
Nonlinear Dynamics
Modelling
Fractional Calculus
Complex Systems
Entropy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,784
21,379
0.551
* Total Citation Counts Rankings
Ranking Based On Selection :2
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,587
16,697
0.653
* Total Citation Counts Rankings
Ranking Based On Selection :3
Power Systems
Smart grids
Artificial Intelligence
Demand response
Electricity Markets
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,318
10,362
0.566
* Total Citation Counts Rankings
Ranking Based On Selection :4
Mechanical Engineering
Fracture Mechanics
Adhesive joints
Finite Element Method
Automation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,032
8,224
0.631
* Total Citation Counts Rankings
Ranking Based On Selection :5
biodiesel
microalgae
Life Cycle Analysis
sustainable biorefineries
waste valorization
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,312
6,749
0.548
* Total Citation Counts Rankings
Ranking Based On Selection :6
Coatings
Tribology
Materials
Manufacturing
Lean
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,163
9,157
0.901
* Total Citation Counts Rankings
Ranking Based On Selection :7
Air pollution and Human biomonitoring
Sensors and biosensors
Green technologies
Health risks assessment
Environmental Scienc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,954
5,857
0.654
* Total Citation Counts Rankings
Ranking Based On Selection :8
Real-Time Systems
Wireless Sensor Networks
Cyber-Physical Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,631
2,938
0.385
* Total Citation Counts Rankings
Ranking Based On Selection :9
Demand Response
Machine learning
Real-time Simulation
Smart Grid
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,140
3,536
0.576
* Total Citation Counts Rankings
Ranking Based On Selection :10
Artificial Intelligence
Ambient Intelligence
Decision Support Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,783
1,700
0.294
* Total Citation Counts Rankings
Ranking Based On Selection :11
quality of service
sensor networks
Cyber-Physical-Systems
Internet-of-Things
e-learning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,764
1,273
0.221
* Total Citation Counts Rankings
Ranking Based On Selection :12
Computer graphics
Bioinformatics
Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,511
3,093
0.561
* Total Citation Counts Rankings
Ranking Based On Selection :13
Smart Grid
Artificial Intelligence
Computational and Swarm intelligence
Optimization
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,439
3,664
0.674
* Total Citation Counts Rankings
Ranking Based On Selection :14
Artificial Intelligence
Machine Learning
Multi-Agent Systems
Electricity Markets
Smart Grid
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,243
3,713
0.708
* Total Citation Counts Rankings
Ranking Based On Selection :15
Decision Making Under Uncertainty
eHealth IT
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,151
2,569
0.499
* Total Citation Counts Rankings
Ranking Based On Selection :16
Semiconductors
Thin Film Photovoltaics
Material Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,106
2,088
0.409
* Total Citation Counts Rankings
Ranking Based On Selection :17
e-learning
b-learning
ICT
educação
ensino a distancia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,021
1,340
0.267
* Total Citation Counts Rankings
Ranking Based On Selection :18
Remote labs
Remote laboratories
Online labs
Engineering Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,706
1,998
0.425
* Total Citation Counts Rankings
Ranking Based On Selection :19
Quality
Management
Organizational Excellence
Sustainability
Social Responsibility
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,417
3,883
0.879
* Total Citation Counts Rankings
Ranking Based On Selection :20
Discrete Simulation
Simulation and Optimization
Lean Manufacturing
Manufacturing Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,251
4,064
0.956
* Total Citation Counts Rankings
Ranking Based On Selection :21
thin film
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,181
1,232
0.295
* Total Citation Counts Rankings
Ranking Based On Selection :22
chemistry
environment
heath
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,917
2,517
0.643
* Total Citation Counts Rankings
Ranking Based On Selection :23
Finite Element Method
Meshless methods
Meshfree Methods
Computational Mechanics
Solid Mechanics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,803
2,328
0.612
* Total Citation Counts Rankings
Ranking Based On Selection :24
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,773
2,309
0.612
* Total Citation Counts Rankings
Ranking Based On Selection :25
Robotics
modelling
simulation
control
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,628
2,018
0.556
J Tenreiro Machado
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,784
21,379
0.551
Nonlinear Dynamics
Modelling
Fractional Calculus
Complex Systems
Entropy
Cristina Delerue Matos
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,587
16,697
0.653
Zita Vale
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,318
10,362
0.566
Power Systems
Smart grids
Artificial Intelligence
Demand response
Electricity Markets
Rdsg Campilho
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,032
8,224
0.631
Mechanical Engineering
Fracture Mechanics
Adhesive joints
Finite Element Method
Automation
Nidia Caetano
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,312
6,749
0.548
biodiesel
microalgae
Life Cycle Analysis
sustainable biorefineries
waste valorization
FJG Silva
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,163
9,157
0.901
Coatings
Tribology
Materials
Manufacturing
Lean
Simone Morais
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,954
5,857
0.654
Air pollution and Human biomonitoring
Sensors and biosensors
Green technologies
Health risks assessment
Environmental Scienc
Eduardo Tovar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,631
2,938
0.385
Real-Time Systems
Wireless Sensor Networks
Cyber-Physical Systems
Pedro Faria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,140
3,536
0.576
Demand Response
Machine learning
Real-time Simulation
Smart Grid
Carlos Ramos
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,783
1,700
0.294
Artificial Intelligence
Ambient Intelligence
Decision Support Systems
Mário Alves
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,764
1,273
0.221
quality of service
sensor networks
Cyber-Physical-Systems
Internet-of-Things
e-learning
Antonio C Costa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,511
3,093
0.561
Computer graphics
Bioinformatics
Education
Joao Soares|Joao P. Soares, J. Soares
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,439
3,664
0.674
Smart Grid
Artificial Intelligence
Computational and Swarm intelligence
Optimization
Tiago Pinto
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,243
3,713
0.708
Artificial Intelligence
Machine Learning
Multi-Agent Systems
Electricity Markets
Smart Grid
Luis Lima
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,151
2,569
0.499
Decision Making Under Uncertainty
eHealth IT
Paulo Fernandes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,106
2,088
0.409
Semiconductors
Thin Film Photovoltaics
Material Science
Armando P Silva
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,021
1,340
0.267
e-learning
b-learning
ICT
educação
ensino a distancia
Gustavo R Alves
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,706
1,998
0.425
Remote labs
Remote laboratories
Online labs
Engineering Education
Luís Fonseca
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,417
3,883
0.879
Quality
Management
Organizational Excellence
Sustainability
Social Responsibility
Luis Pinto Ferreira
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,251
4,064
0.956
Discrete Simulation
Simulation and Optimization
Lean Manufacturing
Manufacturing Systems
Lijian Meng
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,181
1,232
0.295
Valentina Fernandes Domingues
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,917
2,517
0.643
Jorge Belinha
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,803
2,328
0.612
Finite Element Method
Meshless methods
Meshfree Methods
Computational Mechanics
Solid Mechanics
Isabel Praça
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,773
2,309
0.612
Manuel F. Silva
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,628
2,018
0.556
Robotics
modelling
simulation
control