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
literacy development across cultures
dyslexia
dysgraphia
Metrics
H-Index
i10 Index
Citation Counts
86
235
28,832
* Total H IndexRankings
Ranking Based On Selection: 2
Applied linguistics
Discourse Analysis
Academic Discourse
English for Specific Purposes
Metrics
H-Index
i10 Index
Citation Counts
74
145
21,232
* Total H IndexRankings
Ranking Based On Selection: 3
Second language writing
second language teacher education
Metrics
H-Index
i10 Index
Citation Counts
59
100
13,795
* Total H IndexRankings
Ranking Based On Selection: 4
English for academic purposes
English for specific purposes
second language writing
language policy
applied linguistics
Metrics
H-Index
i10 Index
Citation Counts
54
124
15,284
* Total H IndexRankings
Ranking Based On Selection: 5
computational linguistics
corpus linguistics
Chinese linguistics
lexical semantics
ontology
Metrics
H-Index
i10 Index
Citation Counts
52
258
12,355
* Total H IndexRankings
Ranking Based On Selection: 6
Language education
language policy
learning
teacher education
Metrics
H-Index
i10 Index
Citation Counts
48
95
17,382
* Total H IndexRankings
Ranking Based On Selection: 7
Biogeography
Earth History
Island Biogeography
Paleogeography
Phylogeography
Metrics
H-Index
i10 Index
Citation Counts
48
115
10,331
* Total H IndexRankings
Ranking Based On Selection: 8
history
environmental history
Russia
History of Technology
famine
Metrics
H-Index
i10 Index
Citation Counts
39
113
6,743
* Total H IndexRankings
Ranking Based On Selection: 9
Bi-/Multilingualism
code-switching & translanguaging
Cantonese & Chinese literacy
English in HK & China
Cantonese as additio
Metrics
H-Index
i10 Index
Citation Counts
39
68
6,054
* Total H IndexRankings
Ranking Based On Selection: 10
Corpus Linguistics
Conversational Analysis
Critical Discourse Analysis
Lexical Semantics
Pragmatics
Metrics
H-Index
i10 Index
Citation Counts
38
82
5,948
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* Total H IndexRankings
Ranking Based On Selection: 11
Language Education
Metrics
H-Index
i10 Index
Citation Counts
36
62
8,155
* Total H IndexRankings
Ranking Based On Selection: 12
Cantonese and Sinitic languages
language typology
language contact
bilingual development
Metrics
H-Index
i10 Index
Citation Counts
36
69
5,752
* Total H IndexRankings
Ranking Based On Selection: 13
LLMs
Retrieval-augmented generation
Graph neural networks
Knowledge graphs
Text-to-SQL
Metrics
H-Index
i10 Index
Citation Counts
32
50
4,208
* Total H IndexRankings
Ranking Based On Selection: 14
Second Language Acquisition
Metrics
H-Index
i10 Index
Citation Counts
32
78
4,673
* Total H IndexRankings
Ranking Based On Selection: 15
Philosophical methodology
conceptual engineering
philosophy of language
philosophy of mind
Philosophy of AI
Metrics
H-Index
i10 Index
Citation Counts
32
58
7,598
* Total H IndexRankings
Ranking Based On Selection: 16
English for specific purposes
world Englishes
sociolinguistics
Metrics
H-Index
i10 Index
Citation Counts
32
52
4,399
* Total H IndexRankings
Ranking Based On Selection: 17
Applied linguistics
Metrics
H-Index
i10 Index
Citation Counts
29
44
3,605
* Total H IndexRankings
Ranking Based On Selection: 18
Bilingual development
second language acquisition
Cantonese grammar
Metrics
H-Index
i10 Index
Citation Counts
29
45
5,376
* Total H IndexRankings
Ranking Based On Selection: 19
Discourse Analysis
Corpus Linguistics
Pragmatics
Lexical Semantics
Professional Communication
Metrics
H-Index
i10 Index
Citation Counts
29
44
3,923
* Total H IndexRankings
Ranking Based On Selection: 20
Syntax
Semantics
Computational Linguistics
Metrics
H-Index
i10 Index
Citation Counts
29
65
2,844
* Total H IndexRankings
Ranking Based On Selection: 21
Intercultural Communication
Sociolinguistics
Metrics
H-Index
i10 Index
Citation Counts
28
44
2,641
* Total H IndexRankings
Ranking Based On Selection: 22
Linguistics
Metrics
H-Index
i10 Index
Citation Counts
28
56
3,990
* Total H IndexRankings
Ranking Based On Selection: 23
Computational linguistics
Metrics
H-Index
i10 Index
Citation Counts
28
58
3,132
* Total H IndexRankings
Ranking Based On Selection: 24
multimodality
discourse analysis
language education
metaphor and metonymy
Metrics
H-Index
i10 Index
Citation Counts
27
41
1,931
* Total H IndexRankings
Ranking Based On Selection: 25
Experimental linguistics
Lexical tone
Chinese characters
Chinese linguistics
Brain and language
Metrics
H-Index
i10 Index
Citation Counts
27
50
2,149
Catherine Mcbride
Metrics
H-Index
i10-Index
Citation Counts
86
235
28,832
literacy development across cultures
dyslexia
dysgraphia
John Flowerdew
City University of Hong Kong
Kowloon, Hong Kong
Metrics
H-Index
i10-Index
Citation Counts
74
145
21,232
Applied linguistics
Discourse Analysis
Academic Discourse
English for Specific Purposes
Icy Lee
Metrics
H-Index
i10-Index
Citation Counts
59
100
13,795
Second language writing
second language teacher education
Guangwei Hu
Metrics
H-Index
i10-Index
Citation Counts
54
124
15,284
English for academic purposes
English for specific purposes
second language writing
language policy
applied linguistics
Chu-Ren Huang 黄居仁|黄 居仁
Metrics
H-Index
i10-Index
Citation Counts
52
258
12,355
computational linguistics
corpus linguistics
Chinese linguistics
lexical semantics
ontology
Amy Bm Tsui
University of Hong Kong
Pokfulam, Hong Kong
Metrics
H-Index
i10-Index
Citation Counts
48
95
17,382
Language education
language policy
learning
teacher education
Jason R Ali
University of Hong Kong
Pokfulam, Hong Kong
Metrics
H-Index
i10-Index
Citation Counts
48
115
10,331
Biogeography
Earth History
Island Biogeography
Paleogeography
Phylogeography
Jenny Leigh Smith
Metrics
H-Index
i10-Index
Citation Counts
39
113
6,743
history
environmental history
Russia
History of Technology
famine
David CS Li Alias
Metrics
H-Index
i10-Index
Citation Counts
39
68
6,054
Bi-/Multilingualism
code-switching & translanguaging
Cantonese & Chinese literacy
English in HK & China
Cantonese as additio
Winnie Cheng
Metrics
H-Index
i10-Index
Citation Counts
38
82
5,948
Corpus Linguistics
Conversational Analysis
Critical Discourse Analysis
Lexical Semantics
Pragmatics
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Lindsay Miller
City University of Hong Kong
Kowloon, Hong Kong
Metrics
H-Index
i10-Index
Citation Counts
36
62
8,155
Stephen Matthews
University of Hong Kong
Pokfulam, Hong Kong
Metrics
H-Index
i10-Index
Citation Counts
36
69
5,752
Cantonese and Sinitic languages
language typology
language contact
bilingual development
Xiao Huang
Metrics
H-Index
i10-Index
Citation Counts
32
50
4,208
LLMs
Retrieval-augmented generation
Graph neural networks
Knowledge graphs
Text-to-SQL
Alessandro Benati
University of Hong Kong
Pokfulam, Hong Kong
Metrics
H-Index
i10-Index
Citation Counts
32
78
4,673
Second Language Acquisition
Herman Cappelen
University of Hong Kong
Pokfulam, Hong Kong
Metrics
H-Index
i10-Index
Citation Counts
32
58
7,598
Philosophical methodology
conceptual engineering
philosophy of language
philosophy of mind
Philosophy of AI
Stephen Evans
Metrics
H-Index
i10-Index
Citation Counts
32
52
4,399
English for specific purposes
world Englishes
sociolinguistics
Paul Stapleton
Metrics
H-Index
i10-Index
Citation Counts
29
44
3,605
Virginia Yip
Metrics
H-Index
i10-Index
Citation Counts
29
45
5,376
Bilingual development
second language acquisition
Cantonese grammar
Martin Warren
Metrics
H-Index
i10-Index
Citation Counts
29
44
3,923
Discourse Analysis
Corpus Linguistics
Pragmatics
Lexical Semantics
Professional Communication
Haihua Pan|H H Pan
Metrics
H-Index
i10-Index
Citation Counts
29
65
2,844
Syntax
Semantics
Computational Linguistics
Hans Ladegaard
Metrics
H-Index
i10-Index
Citation Counts
28
44
2,641
Intercultural Communication
Sociolinguistics
Louise Cummings
Metrics
H-Index
i10-Index
Citation Counts
28
56
3,990
Chunyu Kit
City University of Hong Kong
Kowloon, Hong Kong
Metrics
H-Index
i10-Index
Citation Counts
28
58
3,132
Computational linguistics
William Dezheng Feng
Metrics
H-Index
i10-Index
Citation Counts
27
41
1,931
multimodality
discourse analysis
language education
metaphor and metonymy
Gang Peng (彭刚)
Metrics
H-Index
i10-Index
Citation Counts
27
50
2,149
Experimental linguistics
Lexical tone
Chinese characters
Chinese linguistics
Brain and language