World

Top 100 Scientists

World Top 100 Scientists 2026

The Top 100 scientists are ranked based on total H-index scores at the global, regional, national, and institutional levels. Rankings cover 10 regions, 13 main fields, and 221 subfields. Subject field rankings (at world, region, country, and university levels) are currently in Beta version and updated in near real-time.
Note: Researchers classified as "others" (currently 1,122,060 profiles whose fields are undetermined or unedited) are excluded from subject and regional rankings. These rankings will dynamically evolve as the “others” profiles are reviewed and properly categorized.

Country

* Total H Index Rankings

Rankings

20,151

World Rank

149

Country Rank

University

Ranking Based On Selection:

Leandro Dos Santos Coelho

Universidade Federal do Paraná Belém, Brazil

Engineering & Technology / Computer Science
AI / Machine Learning | Data Science | Control / Robotics | Optimization | Forecasting / Identification

H-Index Metrics

H-Index

82
i10 Index

290
Citation Counts

26,425

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* Total H Index Rankings

Rankings

65,174

World Rank

836

Country Rank

University

Ranking Based On Selection:

Luiz Eduardo S Oliveira

Universidade Federal do Paraná Belém, Brazil

Engineering & Technology / Computer Science
Pattern Recognition | Machine Learning | Image Processin

H-Index Metrics

H-Index

56
i10 Index

165
Citation Counts

15,819

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* Total H Index Rankings

Rankings

173,956

World Rank

3,987

Country Rank

University

Ranking Based On Selection:

David Menotti

Universidade Federal do Paraná Belém, Brazil

Engineering & Technology / Computer Science
Computer Vision | Image Processing | Pattern Recognition | Machine Learnin

H-Index Metrics

H-Index

37
i10 Index

98
Citation Counts

7,503

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* Total H Index Rankings

Rankings

223,405

World Rank

5,687

Country Rank

University

Ranking Based On Selection:

Silvia Regina Vergilio

Universidade Federal do Paraná Belém, Brazil

Engineering & Technology / Computer Science
software engineering | software testing | search based software engineeerin

H-Index Metrics

H-Index

33
i10 Index

98
Citation Counts

3,795

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* Total H Index Rankings

Rankings

259,473

World Rank

7,118

Country Rank

University

Ranking Based On Selection:

Hugo Valadares Siqueira

Universidade Tecnológica Federal do Paraná UTFPR Curitiba, Brazil

Engineering & Technology / Computer Science
Artificial inteligence | machines learning | neural networks | time series | bioinspired optimizatio

H-Index Metrics

H-Index

30
i10 Index

55
Citation Counts

2,418

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* Total H Index Rankings

Rankings

286,934

World Rank

8,139

Country Rank

122

University

Ranking Based On Selection:

Aurora Trinidad Ramirez Pozo

Universidade Federal do Paraná Belém, Brazil

Engineering & Technology / Computer Science
Inteligencia Artificial | Inteligencia Computacional | Algoritmos Bio-inspirado

H-Index Metrics

H-Index

29
i10 Index

91
Citation Counts

2,932

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* Total H Index Rankings

Rankings

295,345

World Rank

8,426

Country Rank

125

University

Ranking Based On Selection:

Michele Nogueira

Universidade Federal do Paraná Belém, Brazil

Engineering & Technology / Computer Science
Network Security | Network Resilience | Wireless Networks | IoT | Wireless Securit

H-Index Metrics

H-Index

28
i10 Index

72
Citation Counts

3,391

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* Total H Index Rankings

Rankings

325,643

World Rank

9,746

Country Rank

148

University

Ranking Based On Selection:

Luciano Silva

Universidade Federal do Paraná Belém, Brazil

Engineering & Technology / Computer Science
Computer Vision | Biometrics | Digital Art Preservatio

H-Index Metrics

H-Index

27
i10 Index

66
Citation Counts

3,388

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* Total H Index Rankings

Rankings

346,852

World Rank

10,614

Country Rank

165

University

Ranking Based On Selection:

Elias P Duarte Jr

Universidade Federal do Paraná Belém, Brazil

Engineering & Technology / Computer Science
Dependability | Fault-Tolerance | Distributed Systems | Networking | Algorithm

H-Index Metrics

H-Index

26
i10 Index

75
Citation Counts

2,144

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* Total H Index Rankings

Rankings

358,802

World Rank

11,010

Country Rank

University

Ranking Based On Selection:

Gustavo Henrique Paetzold

Universidade Tecnológica Federal do Paraná UTFPR Curitiba, Brazil

Engineering & Technology / Computer Science
Natural Language Processing | Text Simplification | Quality Estimatio

H-Index Metrics

H-Index

25
i10 Index

31
Citation Counts

2,390

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* Total H Index Rankings

Rankings

363,240

World Rank

11,195

Country Rank

171

University

Ranking Based On Selection:

Laura Sánchez García

Universidade Federal do Paraná Belém, Brazil

Engineering & Technology / Computer Science
Interação Humano Computador | Processamento de Linguagem Natural | Informática na Educaçã

H-Index Metrics

H-Index

25
i10 Index

75
Citation Counts

2,746

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* Total H Index Rankings

Rankings

367,444

World Rank

11,458

Country Rank

174

University

Ranking Based On Selection:

Emerson Urizzi Cervi

Universidade Federal do Paraná Belém, Brazil

Engineering & Technology / Computer Science
opinião pública | comunicação política | eleições | partidos político

H-Index Metrics

H-Index

25
i10 Index

49
Citation Counts

1,945

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* Total H Index Rankings

Rankings

378,692

World Rank

11,871

Country Rank

University

Ranking Based On Selection:

Katia Romero Felizardo|KR Felizardo, Felizardo, K.R.

Universidade Tecnológica Federal do Paraná UTFPR Curitiba, Brazil

Engineering & Technology / Computer Science
Empirical Software Engineering | Evidence-Based Software Engineering | Systematic Literature Review | Systematic Review | VT