AfriHate: A Multilingual Collection of Hate Speech and Abusive Language Datasets for African Languages
Shamsuddeen Hassan Muhammad, Idris Abdulmumin, Abinew Ali Ayele, David Ifeoluwa Adelani, Ibrahim Said Ahmad, Saminu Mohammad Aliyu, Paul Röttger, Abigail Oppong
Abstract
Hate speech and abusive language are global phenomena that need socio-cultural background knowledge to be understood, identified, and moderated. However, in many regions of the Global South, there have been several documented occurrences of (1) absence of moderation and (2) censorship due to the reliance on keyword spotting out of context. Further, high-profile individuals have frequently been at the center of the moderation process, while large and targeted hate speech campaigns against minorities have been overlooked.These limitations are mainly due to the lack of high-quality data in the local languages and the failure to include local communities in the collection, annotation, and moderation processes. To address this issue, we present AfriHate: a multilingual collection of hate speech and abusive language datasets in 15 African languages. Each instance in AfriHate is a tweet annotated by native speakers familiar with the regional culture. We report the challenges related to the construction of the datasets and present various classification baseline results with and without using LLMs. We find that model performance highly depends on the language and that multilingual models can help boost performance in low-resource settings.
BibTeX
@inproceedings{muhammad-etal-2025-afrihate,
title = "{A}fri{H}ate: A Multilingual Collection of Hate Speech and Abusive Language Datasets for {A}frican Languages",
author = {Muhammad, Shamsuddeen Hassan and
Abdulmumin, Idris and
Ayele, Abinew Ali and
Adelani, David Ifeoluwa and
Ahmad, Ibrahim Said and
Aliyu, Saminu Mohammad and
R{\"o}ttger, Paul and
Oppong, Abigail and
Bukula, Andiswa and
Chukwuneke, Chiamaka Ijeoma and
Jibril, Ebrahim Chekol and
Ismail, Elyas Abdi and
Alemneh, Esubalew and
Gebremichael, Hagos Tesfahun and
Aliyu, Lukman Jibril and
Beloucif, Meriem and
Hourrane, Oumaima and
Mabuya, Rooweither and
Osei, Salomey and
Rutunda, Samuel and
Belay, Tadesse Destaw and
Guge, Tadesse Kebede and
Asfaw, Tesfa Tegegne and
Wanzare, Lilian Diana Awuor and
Onyango, Nelson Odhiambo and
Yimam, Seid Muhie and
Ousidhoum, Nedjma},
editor = "Chiruzzo, Luis and
Ritter, Alan and
Wang, Lu",
booktitle = "Proceedings of the 2025 Conference of the Nations of the Americas Chapter of the Association for Computational Linguistics: Human Language Technologies (Volume 1: Long Papers)",
month = apr,
year = "2025",
address = "Albuquerque, New Mexico",
publisher = "Association for Computational Linguistics",
url = "https://aclanthology.org/2025.naacl-long.92/",
pages = "1854--1871",
ISBN = "979-8-89176-189-6"
}