The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 211 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 Jun 18, 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 (0) 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].
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Applied Linguistics | English Grammar | and Nigerian English
H-Index Metrics
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H-Index7
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i10 Index7
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Citation Counts193
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Design and Aesthetics of the Theatre | Dramatic Literature | Nollywood Studie
H-Index Metrics
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H-Index7
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i10 Index4
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Citation Counts155
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General Linguistics | Syntax | Semantics | Yoruboid Language
H-Index Metrics
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H-Index6
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i10 Index2
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Citation Counts129
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Artificial Intelligence | Computational Linguistics | Discrete Systems Optimizatio
H-Index Metrics
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H-Index5
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i10 Index2
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Citation Counts63
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metaphor | film studies | discourse analysis | sociolinguistic
H-Index Metrics
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H-Index5
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i10 Index1
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Citation Counts53
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phonetics | phonology | morphology | contact linguistics | Optimality Theor
H-Index Metrics
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H-Index5
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i10 Index1
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Citation Counts45
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Yoruba Language | Language Engineering | African Indigenous Knowledge Syste
H-Index Metrics
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H-Index4
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i10 Index1
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Citation Counts46
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Theater Arts | Dramatic Literature | Cultural Studies | Dramatic Criticis
H-Index Metrics
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H-Index4
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i10 Index1
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Citation Counts45
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Anthropological Linguistics | & Pariemiology | Discourse Analysis & Applied Linguistic
H-Index Metrics
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H-Index3
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i10 Index1
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Citation Counts49
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Theoretical and Applied Linguistics | Discourse Analysis | Stylistics | English Gramma
H-Index Metrics
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H-Index3
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i10 Index1
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Citation Counts37
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Comparative Drama | African literature | women's studies | Nollywood | British Dram
H-Index Metrics
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H-Index3
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i10 Index1
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Citation Counts30
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Igbo | socio-phonology | urban-Linguistics | sociolinguistic
H-Index Metrics
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H-Index3
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i10 Index1
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Citation Counts28
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Intelligibility Studies | English Phonetics and Phonolog
H-Index Metrics
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H-Index3
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i10 Index0
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Citation Counts21
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English Phonetics and Phonology | Sociophonetics | Nigerian English Studie
H-Index Metrics
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H-Index3
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i10 Index1
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Citation Counts23