Productivity Rankings is a unique service offered only by “AD Scientific Index”. This is a ranking system derived from the i10 index in order to show the productivity of the scientist in publishing scientific articles of value. Productivity Rankings is an instrument that lists productive scientists in a given area, discipline, university, and country and can guide the development of meaningful incentives and academic policies. The world rankings, regional rankings, and university rankings of scientists in this table are developed based on the total i10 index. Additionally, click to view the special rankings based on Productivity Rankings: Scientists Last 6 years' i10 Index", Universities Total i10 Index Rankings 2025, Universities Last 6 Years i10 Index Rankings 2025 "Art and Humanities i10 Productivity Rankings" and "Social Sciences and Humanities i10 Productivity Rankings".
* Total i10 IndexRankings
Ranking Based On Selection :1
Comparative Literature
African Literature
Postcolonial Literature
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
26
14
0.538
* Total i10 IndexRankings
Ranking Based On Selection :2
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
23
7
0.304
* Total i10 IndexRankings
Ranking Based On Selection :3
Linguistics
Phonology
Phonetics
Language Documentation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
5
0.250
* Total i10 IndexRankings
Ranking Based On Selection :4
French metropolitan literature
African literature
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
11
0.786
* Total i10 IndexRankings
Ranking Based On Selection :5
Phonetics/Phonology
Morphology
Language Documentation
Forensic Linguistics
Igala Linguistics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
0
0.000
* Total i10 IndexRankings
Ranking Based On Selection :6
sociolinguistics and linguistics in general
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
12
1.000
* Total i10 IndexRankings
Ranking Based On Selection :7
Sociolinguistics
gender
second language learning and teaching
stylistics
applied linguistics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
8
0.727
* Total i10 IndexRankings
Ranking Based On Selection :8
African Literature
African Oral Literature
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
10
1.000
* Total i10 IndexRankings
Ranking Based On Selection :9
Gender &Trauma Studies
Diaspora & Transnational Lit.
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
10
1.000
* Total i10 IndexRankings
Ranking Based On Selection :10
syntax
semantics and field linguistics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
9
0.900
* Total i10 IndexRankings
Ranking Based On Selection :11
literature and criticism in Arabic language
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
7
0.700
* Total i10 IndexRankings
Ranking Based On Selection :12
Stylistics
Sociolinguistics
Literary Criticism
African and African Diasporan Literature and Creative Writing
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
5
0.500
* Total i10 IndexRankings
Ranking Based On Selection :13
Comparative Literature
African Studies
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
4
0.400
* Total i10 IndexRankings
Ranking Based On Selection :14
Phonology
Nigerian languages
Language documentation
description and applications
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
2
0.200
* Total i10 IndexRankings
Ranking Based On Selection :15
Classroom Pedagogy
Literacy
Language Education and Gender Studies
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
7
0.778
* Total i10 IndexRankings
Ranking Based On Selection :16
Stylistics
semiotics
literature
media
culture
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
5
0.556
* Total i10 IndexRankings
Ranking Based On Selection :17
African Literature
Ecocriticism
Popular Culture
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
7
0.875
* Total i10 IndexRankings
Ranking Based On Selection :18
Igbo Linguistics
Cognitive Linguistics
Lexicography
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
5
0.625
* Total i10 IndexRankings
Ranking Based On Selection :19
English
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
5
0.625
* Total i10 IndexRankings
Ranking Based On Selection :20
African Literature
Postcolonial Literature
Poetry performance
Yoruba popular poetry
Nigerian Writing
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
4
0.500
* Total i10 IndexRankings
Ranking Based On Selection :21
applied linguistics and discourse analysis
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
4
0.571
* Total i10 IndexRankings
Ranking Based On Selection :22
Syntax/ Morphology/ Socio-linguistics/ Phonology and Research Methods and Resources
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
3
0.429
* Total i10 IndexRankings
Ranking Based On Selection :23
Syntax
Morphology
Socio-linguistics
Phonology and Research Methods and Resources
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
3
0.429
* Total i10 IndexRankings
Ranking Based On Selection :24
Phonetics
Phonology
Sociolinguistics
Applied Linguistics
Historical/Comparative Linguistics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
5
0.833
* Total i10 IndexRankings
Ranking Based On Selection :25
Syntax
sociolinguistics and Language engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
4
0.667
Ayobami Kehinde
University of Ibadan
Ibadan, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
26
14
0.538
Comparative Literature
African Literature
Postcolonial Literature
Emmanuel Obiechina
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
23
7
0.304
Eno-Abasi Urua
University of Uyo
Uyo, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
5
0.250
Linguistics
Phonology
Phonetics
Language Documentation
Polycarp Yahaya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
14
11
0.786
French metropolitan literature
African literature
Gideon Sunday Omachonu
Nasarawa State University
Keffi, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
0
0.000
Phonetics/Phonology
Morphology
Language Documentation
Forensic Linguistics
Igala Linguistics
Abdullahi Lawal Dikko
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
12
1.000
sociolinguistics and linguistics in general
Abolaji Samuel Mustapha
Ajayi Crowther University Oyo
Oyo Town, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
8
0.727
Sociolinguistics
gender
second language learning and teaching
stylistics
applied linguistics
Kufre Aniefiok Akpan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
10
1.000
African Literature
African Oral Literature
Monica Udoette
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
10
1.000
Gender &Trauma Studies
Diaspora & Transnational Lit.
Boniface Mbah
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
9
0.900
syntax
semantics and field linguistics
Muhammad Abubakar Sulaiman
Sule Lamido University
Kafin Hausa, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
7
0.700
literature and criticism in Arabic language
Joseph A. Ushie
University of Uyo
Uyo, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
5
0.500
Stylistics
Sociolinguistics
Literary Criticism
African and African Diasporan Literature and Creative Writing
Abdul-Rasheed Na'allah
University of Abuja
Abuja, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
4
0.400
Comparative Literature
African Studies
Imelda Udoh
University of Uyo
Uyo, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
2
0.200
Phonology
Nigerian languages
Language documentation
description and applications
Graceful Onovughe Ofodu
Ekiti State University Ado Ekiti
Ado-Ekiti, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
7
0.778
Classroom Pedagogy
Literacy
Language Education and Gender Studies
Obododimma Oha
University of Ibadan
Ibadan, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
5
0.556
Stylistics
semiotics
literature
media
culture
Idom T. Inyabri
University of Calabar
Calabar, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
7
0.875
African Literature
Ecocriticism
Popular Culture
Chinedu Uchechukwu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
5
0.625
Igbo Linguistics
Cognitive Linguistics
Lexicography
Eventus D. Edem
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
5
0.625
Oyeniyi Okunoye
Obafemi Awolowo University
Ile-Ife, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
4
0.500
African Literature
Postcolonial Literature
Poetry performance
Yoruba popular poetry
Nigerian Writing
Kehinde Ayoola
Obafemi Awolowo University
Ile-Ife, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
4
0.571
applied linguistics and discourse analysis
Edenowo Enang
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
3
0.429
Syntax/ Morphology/ Socio-linguistics/ Phonology and Research Methods and Resources
Edenowo T. Enang
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
3
0.429
Syntax
Morphology
Socio-linguistics
Phonology and Research Methods and Resources
Cecilia Amaoge Eme
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
5
0.833
Phonetics
Phonology
Sociolinguistics
Applied Linguistics
Historical/Comparative Linguistics
Timothy Akanbi
Ekiti State University Ado Ekiti
Ado-Ekiti, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
4
0.667
Syntax
sociolinguistics and Language engineering