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 30, 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 (873.690) 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
Large Language Model
Web Search
Information Retrieval
Machine Learning
Metrics
H-Index
i10 Index
Citation Counts
92
424
38,081
* Total H IndexRankings
Ranking Based On Selection: 2
Recommender System
Natural Language Processing
Large Language Model
Metrics
H-Index
i10 Index
Citation Counts
68
186
26,468
* Total H IndexRankings
Ranking Based On Selection: 3
Metrics
H-Index
i10 Index
Citation Counts
62
312
24,658
* Total H IndexRankings
Ranking Based On Selection: 4
Green Chemistry
Solution Chemistry
Biomass
Ionic Liquids
Deep Eutectic Solvents
Metrics
H-Index
i10 Index
Citation Counts
61
187
13,381
* Total H IndexRankings
Ranking Based On Selection: 5
Natural Language Processing
Text Mining
Machine Learning
Information Retrieval
Artificial Intelligence
Metrics
H-Index
i10 Index
Citation Counts
58
259
15,565
* Total H IndexRankings
Ranking Based On Selection: 6
Forest governance
forest and climate
community and smallholder forestry
forest transition and
Metrics
H-Index
i10 Index
Citation Counts
47
126
8,228
* Total H IndexRankings
Ranking Based On Selection: 7
Blockchain
Parallel Intelligence
DAO
Social Computing
Computational Advertising
Metrics
H-Index
i10 Index
Citation Counts
46
111
10,621
* Total H IndexRankings
Ranking Based On Selection: 8
philosophy-ethics of science-technology-engineering and STS
Metrics
H-Index
i10 Index
Citation Counts
46
111
12,417
* Total H IndexRankings
Ranking Based On Selection: 9
Multimedia Intelligence
Pattern Recognition
Video Retrieval
AI for Health
Metrics
H-Index
i10 Index
Citation Counts
45
93
7,373
* Total H IndexRankings
Ranking Based On Selection: 10
Public Management
Performance Management
Citizen Participation
Metrics
H-Index
i10 Index
Citation Counts
45
82
10,075
* Total H IndexRankings
Ranking Based On Selection: 11
Metrics
H-Index
i10 Index
Citation Counts
45
91
6,464
* Total H IndexRankings
Ranking Based On Selection: 12
organizational behavior
human resource management
Metrics
H-Index
i10 Index
Citation Counts
43
86
9,039
* Total H IndexRankings
Ranking Based On Selection: 13
Information Retrieval
Learning to Rank
Semantic Matching
Metrics
H-Index
i10 Index
Citation Counts
43
99
10,067
* Total H IndexRankings
Ranking Based On Selection: 14
人工智能
Metrics
H-Index
i10 Index
Citation Counts
43
127
7,660
* Total H IndexRankings
Ranking Based On Selection: 15
mathematical physics
special functions and orthogonal polynomials
Metrics
H-Index
i10 Index
Citation Counts
43
138
7,441
* Total H IndexRankings
Ranking Based On Selection: 16
database systems
web and mobile data
cloud and big data
new hardware
privacy
Metrics
H-Index
i10 Index
Citation Counts
42
161
7,600
* Total H IndexRankings
Ranking Based On Selection: 17
Metrics
H-Index
i10 Index
Citation Counts
40
64
6,778
* Total H IndexRankings
Ranking Based On Selection: 18
Cyberpsychology
Computered-mediated communication
Metrics
H-Index
i10 Index
Citation Counts
39
62
4,789
* Total H IndexRankings
Ranking Based On Selection: 19
energy economics
Metrics
H-Index
i10 Index
Citation Counts
39
59
5,522
* Total H IndexRankings
Ranking Based On Selection: 20
AI based creation
multi-modaltiy chitchat
natural language understanding
information retrieval
information extraction
Metrics
H-Index
i10 Index
Citation Counts
39
88
6,738
* Total H IndexRankings
Ranking Based On Selection: 21
Information Retrieval
Retrieval Augmented Generation
Large Language Models
Generative IR
Metrics
H-Index
i10 Index
Citation Counts
38
111
5,461
* Total H IndexRankings
Ranking Based On Selection: 22
Trust Development
Collaboration Engineering
Design Science Research
AI Behaviour
Sharing Economy
Metrics
H-Index
i10 Index
Citation Counts
37
79
5,007
* Total H IndexRankings
Ranking Based On Selection: 23
AI for Science
Scientific Machine Learning
Data Assimilation
Metrics
H-Index
i10 Index
Citation Counts
37
59
5,332
* Total H IndexRankings
Ranking Based On Selection: 24
Chemistry
Metrics
H-Index
i10 Index
Citation Counts
37
84
7,364
* Total H IndexRankings
Ranking Based On Selection: 25
Machine Learning
Computer Vision
Large Multimodal Models
Video Generation
Metrics
H-Index
i10 Index
Citation Counts
36
85
6,265
Ji Rong Wen
Renmin University of China
Beijing, China
Metrics
H-Index
i10-Index
Citation Counts
92
424
38,081
Large Language Model
Web Search
Information Retrieval
Machine Learning
Wayne Xin Zhao
Renmin University of China
Beijing, China
Metrics
H-Index
i10-Index
Citation Counts
68
186
26,468
Recommender System
Natural Language Processing
Large Language Model
Wei Ji
Renmin University of China
Beijing, China
Metrics
H-Index
i10-Index
Citation Counts
62
312
24,658
Tiancheng Mu(牟天成)
Renmin University of China
Beijing, China
Metrics
H-Index
i10-Index
Citation Counts
61
187
13,381
Green Chemistry
Solution Chemistry
Biomass
Ionic Liquids
Deep Eutectic Solvents
Rui Yan (严睿)
Renmin University of China
Beijing, China
Metrics
H-Index
i10-Index
Citation Counts
58
259
15,565
Natural Language Processing
Text Mining
Machine Learning
Information Retrieval
Artificial Intelligence
Wil De Jong
Renmin University of China
Beijing, China
Metrics
H-Index
i10-Index
Citation Counts
47
126
8,228
Forest governance
forest and climate
community and smallholder forestry
forest transition and
Yong Yuan
Renmin University of China
Beijing, China
Metrics
H-Index
i10-Index
Citation Counts
46
111
10,621
Blockchain
Parallel Intelligence
DAO
Social Computing
Computational Advertising
Carl Mitcham
Renmin University of China
Beijing, China
Metrics
H-Index
i10-Index
Citation Counts
46
111
12,417
philosophy-ethics of science-technology-engineering and STS
Xirong Li (李锡荣)
Renmin University of China
Beijing, China
Metrics
H-Index
i10-Index
Citation Counts
45
93
7,373
Multimedia Intelligence
Pattern Recognition
Video Retrieval
AI for Health
Kaifeng Yang
Renmin University of China
Beijing, China
Metrics
H-Index
i10-Index
Citation Counts
45
82
10,075
Public Management
Performance Management
Citizen Participation
Rong Yu
Renmin University of China
Beijing, China
Metrics
H-Index
i10-Index
Citation Counts
45
91
6,464
Jun Liu
Renmin University of China
Beijing, China
Metrics
H-Index
i10-Index
Citation Counts
43
86
9,039
organizational behavior
human resource management
Jun Xu
Renmin University of China
Beijing, China
Metrics
H-Index
i10-Index
Citation Counts
43
99
10,067
Information Retrieval
Learning to Rank
Semantic Matching
Qin Jin
Renmin University of China
Beijing, China
Metrics
H-Index
i10-Index
Citation Counts
43
127
7,660
Alexei Zhedanov
Renmin University of China
Beijing, China
Metrics
H-Index
i10-Index
Citation Counts
43
138
7,441
mathematical physics
special functions and orthogonal polynomials
Xiaofeng Meng
Renmin University of China
Beijing, China
Metrics
H-Index
i10-Index
Citation Counts
42
161
7,600
database systems
web and mobile data
cloud and big data
new hardware
privacy
Meining Zhang
Renmin University of China
Beijing, China
Metrics
H-Index
i10-Index
Citation Counts
40
64
6,778
Pengcheng Wang
Renmin University of China
Beijing, China
Metrics
H-Index
i10-Index
Citation Counts
39
62
4,789
Cyberpsychology
Computered-mediated communication
Zhan Ming Chen
Renmin University of China
Beijing, China
Metrics
H-Index
i10-Index
Citation Counts
39
59
5,522
Ruihua Song
Renmin University of China
Beijing, China
Metrics
H-Index
i10-Index
Citation Counts
39
88
6,738
AI based creation
multi-modaltiy chitchat
natural language understanding
information retrieval
information extraction
Dou Zhicheng
Renmin University of China
Beijing, China
Metrics
H-Index
i10-Index
Citation Counts
38
111
5,461
Information Retrieval
Retrieval Augmented Generation
Large Language Models
Generative IR
Xusen Cheng
Renmin University of China
Beijing, China
Metrics
H-Index
i10-Index
Citation Counts
37
79
5,007
Trust Development
Collaboration Engineering
Design Science Research
AI Behaviour
Sharing Economy
Hao Sun (孙浩)
Renmin University of China
Beijing, China
Metrics
H-Index
i10-Index
Citation Counts
37
59
5,332
AI for Science
Scientific Machine Learning
Data Assimilation
Zhi Xin Guo
Renmin University of China
Beijing, China
Metrics
H-Index
i10-Index
Citation Counts
37
84
7,364
Zhiwu Lu
Renmin University of China
Beijing, China
Metrics
H-Index
i10-Index
Citation Counts
36
85
6,265
Machine Learning
Computer Vision
Large Multimodal Models
Video Generation