World Scientist and University Rankings 2025
Singapore History, Philosophy, Theology 56 Scientists Subject Rankings - 2025
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 years. As of Jan 29, 2025, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (873.688) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
* Total H IndexRankings
Ranking Based On Selection: 1
history
anthropology
political science
Metrics
H-Index
i10 Index
Citation Counts
48
158
12,274
* Total H IndexRankings
Ranking Based On Selection: 2
Materials Science and Engineering
Metrics
H-Index
i10 Index
Citation Counts
31
40
3,741
* Total H IndexRankings
Ranking Based On Selection: 3
Systematics and taxonomy of Southeast Asian inland fishes
Metrics
H-Index
i10 Index
Citation Counts
29
80
3,352
* Total H IndexRankings
Ranking Based On Selection: 4
Political Science and Political History
Metrics
H-Index
i10 Index
Citation Counts
25
52
2,816
* Total H IndexRankings
Ranking Based On Selection: 5
Cities
Infrastructure
Superdiversity
Bodies
Asia
Metrics
H-Index
i10 Index
Citation Counts
23
48
1,537
* Total H IndexRankings
Ranking Based On Selection: 6
Philosophy
Religious Studies
Chinese Studies
Metrics
H-Index
i10 Index
Citation Counts
23
42
3,694
* Total H IndexRankings
Ranking Based On Selection: 7
Comparative philosophy
Confucianism
Pragmatism
Political philosophy
Metrics
H-Index
i10 Index
Citation Counts
21
38
1,673
* Total H IndexRankings
Ranking Based On Selection: 8
Intellectual History
Islam
Southeast Asia
Metrics
H-Index
i10 Index
Citation Counts
20
30
1,079
* Total H IndexRankings
Ranking Based On Selection: 9
History of Biology
Taxonomy and Nomenclature
Iconography
Wallace
Darwin
Metrics
H-Index
i10 Index
Citation Counts
19
37
1,333
* Total H IndexRankings
Ranking Based On Selection: 10
religion
gender
consumption
pedagogy
social theory
Metrics
H-Index
i10 Index
Citation Counts
18
34
1,466
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* Total H IndexRankings
Ranking Based On Selection: 11
IR Theory
International Political Theory
Political Theology
Metrics
H-Index
i10 Index
Citation Counts
18
27
1,377
* Total H IndexRankings
Ranking Based On Selection: 12
Environmental History
Southeast Asia
Malay World
Singapore
Metrics
H-Index
i10 Index
Citation Counts
18
29
1,114
* Total H IndexRankings
Ranking Based On Selection: 13
history of science
history of technology
history of biology
history of computing
science technology and society
Metrics
H-Index
i10 Index
Citation Counts
17
29
1,603
* Total H IndexRankings
Ranking Based On Selection: 14
Malacology
taxonomy
nomenclature
biodiversity
Metrics
H-Index
i10 Index
Citation Counts
17
31
1,246
* Total H IndexRankings
Ranking Based On Selection: 15
Interreligious and Interfaith Studies
Religious Studies
Theology of Religions
Method and Theory
Metrics
H-Index
i10 Index
Citation Counts
17
30
1,286
* Total H IndexRankings
Ranking Based On Selection: 16
Epistemology
Philosophy of Language
Metaethics
Metrics
H-Index
i10 Index
Citation Counts
16
19
852
* Total H IndexRankings
Ranking Based On Selection: 17
Cold War International History
Modern Southeast Asian History
Vietnam War
Metrics
H-Index
i10 Index
Citation Counts
15
17
894
* Total H IndexRankings
Ranking Based On Selection: 18
History
Cultural Studies
Comic Studies
Metrics
H-Index
i10 Index
Citation Counts
14
20
1,315
* Total H IndexRankings
Ranking Based On Selection: 19
Systematics & taxonomy of true crabs (Crustacea: Decapoda: Brachyura)
Metrics
H-Index
i10 Index
Citation Counts
14
19
610
* Total H IndexRankings
Ranking Based On Selection: 20
Philosophy
Metrics
H-Index
i10 Index
Citation Counts
14
17
762
* Total H IndexRankings
Ranking Based On Selection: 21
Visual and material culture studies
Heritage Studies
Thai Studies
Metrics
H-Index
i10 Index
Citation Counts
13
16
1,557
* Total H IndexRankings
Ranking Based On Selection: 22
Ethics
Philosophy of Action
Nietzsche
Metrics
H-Index
i10 Index
Citation Counts
13
18
816
* Total H IndexRankings
Ranking Based On Selection: 23
South Asian Diaspora Studies
Transnationalism
Nationalism
Indian Politics
Singapore History
Metrics
H-Index
i10 Index
Citation Counts
13
14
772
* Total H IndexRankings
Ranking Based On Selection: 24
Systematics
Entomology
Evolutionary Biology
Heteroptera
Reduviidae
Metrics
H-Index
i10 Index
Citation Counts
10
10
966
* Total H IndexRankings
Ranking Based On Selection: 25
Philosophy
Metrics
H-Index
i10 Index
Citation Counts
10
10
325
Gungwu Wang
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
48
158
12,274
history
anthropology
political science
Khang Ngoc Dinh Roy
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
31
40
3,741
Materials Science and Engineering
Heok Hui Tan
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
29
80
3,352
Systematics and taxonomy of Southeast Asian inland fishes
Farish A Noor
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
25
52
2,816
Political Science and Political History
Orlando Woods
Singapore Management University
Singapore, Singapore
Metrics
H-Index
i10-Index
Citation Counts
23
48
1,537
Cities
Infrastructure
Superdiversity
Bodies
Asia
Chenyang Li
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
23
42
3,694
Philosophy
Religious Studies
Chinese Studies
Tan Sor Hoon _
Singapore Management University
Singapore, Singapore
Metrics
H-Index
i10-Index
Citation Counts
21
38
1,673
Comparative philosophy
Confucianism
Pragmatism
Political philosophy
Khairudin Aljunied
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
20
30
1,079
Intellectual History
Islam
Southeast Asia
Kees Rookmaaker
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
19
37
1,333
History of Biology
Taxonomy and Nomenclature
Iconography
Wallace
Darwin
Vineeta Sinha
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
18
34
1,466
religion
gender
consumption
pedagogy
social theory
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William Bain
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
18
27
1,377
IR Theory
International Political Theory
Political Theology
Timothy P Barnard
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
18
29
1,114
Environmental History
Southeast Asia
Malay World
Singapore
Hallam Stevens
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
17
29
1,603
history of science
history of technology
history of biology
history of computing
science technology and society
Siong Kiat Tan
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
17
31
1,246
Malacology
taxonomy
nomenclature
biodiversity
Paul Hedges
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
17
30
1,286
Interreligious and Interfaith Studies
Religious Studies
Theology of Religions
Method and Theory
Bob Beddor
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
16
19
852
Epistemology
Philosophy of Language
Metaethics
Ang Cheng Guan
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
15
17
894
Cold War International History
Modern Southeast Asian History
Vietnam War
Ian Gordon
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
14
20
1,315
History
Cultural Studies
Comic Studies
Jce Mendoza
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
14
19
610
Systematics & taxonomy of true crabs (Crustacea: Decapoda: Brachyura)
Simon B Duffy
Yale NUS College
College Ave West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
14
17
762
Maurizio Peleggi
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
13
16
1,557
Visual and material culture studies
Heritage Studies
Thai Studies
Neil Sinhababu
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
13
18
816
Ethics
Philosophy of Action
Nietzsche
Rajesh Rai
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
13
14
772
South Asian Diaspora Studies
Transnationalism
Nationalism
Indian Politics
Singapore History
Wei Song Hwang
National University of Singapore
Queenstown, Singapore
Metrics
H-Index
i10-Index
Citation Counts
10
10
966
Systematics
Entomology
Evolutionary Biology
Heteroptera
Reduviidae
Preston Greene
Nanyang Technological University
Jurong West, Singapore
Metrics
H-Index
i10-Index
Citation Counts
10
10
325