Productivity Rankings is an exclusive service provided by AD Scientific Index. This ranking system, derived from the i10 index, highlights the productivity of scientists in publishing impactful scientific articles. Productivity Rankings serves as a tool to identify highly productive scientists across specific areas, disciplines, universities, and countries, and supports the creation of effective incentives and academic policies. The global, regional, and institutional rankings of scientists in this table are calculated based on their total i10 index. Moreover, you can explore special rankings derived from Productivity Rankings, such as Scientists Last 6 Years' i10 Index, Universities Total i10 Index Rankings 2025, Universities Last 6 Years' i10 Index Rankings 2025, Art and Humanities i10 Productivity Rankings, and Social Sciences and Humanities i10 Productivity Rankings.
* Total i10 IndexRankings
Ranking Based On Selection: 1
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
588
364
0.619
* Total i10 IndexRankings
Ranking Based On Selection: 2
Health Economics
Public Health
Health Policy and Systems Research
Pharmaco-economics
Pharmaco-epidemiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
281
220
0.783
* Total i10 IndexRankings
Ranking Based On Selection: 3
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
261
91
0.349
* Total i10 IndexRankings
Ranking Based On Selection: 4
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
217
145
0.668
* Total i10 IndexRankings
Ranking Based On Selection: 5
ARTIFICIAL INTELLIGENCE
OPTIMIZATION
FUZZY SYSTEMS
MACHINE LEARNING
SOFTWARE ENGINEERING
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
199
199
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 6
Physics
Materials Science
Nanomaterials
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
195
166
0.851
* Total i10 IndexRankings
Ranking Based On Selection: 7
Marketing
Cons Behavior
Int Business & Sys Lit Review
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
186
178
0.957
* Total i10 IndexRankings
Ranking Based On Selection: 8
Public Health
Health Systems and Policy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
171
135
0.789
* Total i10 IndexRankings
Ranking Based On Selection: 9
PHYSICAL/COMPUTATIONAL CHEMISTRY
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
145
116
0.800
* Total i10 IndexRankings
Ranking Based On Selection: 10
Ethnopharmacology
Natural Products Pharmacology
Autonomic Pharmacology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
144
92
0.639
* Total i10 IndexRankings
Ranking Based On Selection: 11
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
144
80
0.556
* Total i10 IndexRankings
Ranking Based On Selection: 12
Pharmaceutics
drug delivery
nanotechnology/nanomedicines
pharmaceutical microbiology & biotechnology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
131
89
0.679
* Total i10 IndexRankings
Ranking Based On Selection: 13
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
123
102
0.829
* Total i10 IndexRankings
Ranking Based On Selection: 14
METALLURGICAL AND MATERIALS ENGINEERING
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
121
103
0.851
* Total i10 IndexRankings
Ranking Based On Selection: 15
Nonlinear Operator Theory
Numerical Analysis
Optimization
Mathematical Programming
Integral Equations
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
115
89
0.774
* Total i10 IndexRankings
Ranking Based On Selection: 16
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
104
68
0.654
* Total i10 IndexRankings
Ranking Based On Selection: 17
electrical technology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
101
97
0.960
* Total i10 IndexRankings
Ranking Based On Selection: 18
Bioprocess engineering
Fermentation technology
Bio-energy
Microalgae biotechnology
Photobioreactors.
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
97
69
0.711
* Total i10 IndexRankings
Ranking Based On Selection: 19
Materials/Physical Chemistry
Wastewater treatment
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
87
82
0.943
* Total i10 IndexRankings
Ranking Based On Selection: 20
Natural Products Pharmacology & Toxicology
Immunopharmacology
Biological Response Modifiers
Vaccine adjuvants
Infectious Dis
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
59
0.728
* Total i10 IndexRankings
Ranking Based On Selection: 21
Pharmaceutics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
78
32
0.410
* Total i10 IndexRankings
Ranking Based On Selection: 22
Sustainable Human Settlements
Post Occupancy Evaluation
e-Procurement in Construction
Environment and Behaviour
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
77
74
0.961
* Total i10 IndexRankings
Ranking Based On Selection: 23
Paediatric Haematology and Oncology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
76
54
0.711
* Total i10 IndexRankings
Ranking Based On Selection: 24
Soil Conservation
mineralogy
soil physics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
76
53
0.697
* Total i10 IndexRankings
Ranking Based On Selection: 25
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
73
19
0.260
Luis Miguel Cardoso
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
588
364
0.619
Obinna E. Onwujekwe
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
281
220
0.783
Health Economics
Public Health
Health Policy and Systems Research
Pharmaco-economics
Pharmaco-epidemiology
Ryo Takahashi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
261
91
0.349
Xavier Fernando
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
217
145
0.668
Gaurav Dhiman
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
199
199
1.000
ARTIFICIAL INTELLIGENCE
OPTIMIZATION
FUZZY SYSTEMS
MACHINE LEARNING
SOFTWARE ENGINEERING
Fabian Ezema
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
195
166
0.851
Justin Paul
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
186
178
0.957
Marketing
Cons Behavior
Int Business & Sys Lit Review
Benjamin Uzochukwu
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
171
135
0.789
Public Health
Health Systems and Policy
Nnabuk Okon Eddy
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
145
116
0.800
Peter A. Akah
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
144
92
0.639
Ethnopharmacology
Natural Products Pharmacology
Autonomic Pharmacology
Hanaa Hachimi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
144
80
0.556
Anthony Attama
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
131
89
0.679
Pharmaceutics
drug delivery
nanotechnology/nanomedicines
pharmaceutical microbiology & biotechnology
Abdulsalam Abdullahi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
123
102
0.829
VS Aigbodion
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
121
103
0.851
METALLURGICAL AND MATERIALS ENGINEERING
Yekini Shehu
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
115
89
0.774
Nonlinear Operator Theory
Numerical Analysis
Optimization
Mathematical Programming
Integral Equations
Akhtar Kalam
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
104
68
0.654
Temitope Akande
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
101
97
0.960
James Chukwuma Ogbonna
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
97
69
0.711
Bioprocess engineering
Fermentation technology
Bio-energy
Microalgae biotechnology
Photobioreactors.
Kovo Akpomie
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
87
82
0.943
Materials/Physical Chemistry
Wastewater treatment
Chukwuemeka S. Nworu
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
59
0.728
Natural Products Pharmacology & Toxicology
Immunopharmacology
Biological Response Modifiers
Vaccine adjuvants
Infectious Dis
Michael Adikwu
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
78
32
0.410
Eziyi O. Ibem
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
77
74
0.961
Sustainable Human Settlements
Post Occupancy Evaluation
e-Procurement in Construction
Environment and Behaviour
Anthony N. Ikefuna
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
76
54
0.711
Paediatric Haematology and Oncology
Charles Arizechukwu Igwe
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
76
53
0.697
Soil Conservation
mineralogy
soil physics
Chukwuma Charles Soludo
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
73
19
0.260