metadata

language:
  - en
  - yo
  - ha
  - ig
  - pcm
size_categories:
  - 10K<n<100K
task_categories:
  - text-classification

Dataset Card for NaijaHate

NaijaHate is a hate speech dataset tailored to the Nigerian context. It contains 35,976 annotated Nigerian tweets, including 29,999 tweets randomly sampled from Nigerian Twitter. For a complete description of the data, please refer to the reference paper (TODO).

Dataset Structure

The dataset is made of four components detailed in the dataset column: two components used for training a hate speech model (stratified and al) and two components for model evaluation (eval and random). We detail each component below:

stratified:
al:
eval:
random:

Dataset Creation

Source Data

This dataset was sourced for a large Twitter dataset of 2.2 billion tweets posted between March 2007 and July 2023 and forming the timelines of 2.8 million Twitter users with a profile location in Nigeria.

Annotation

We recruited a team of four Nigerian annotators, two female and two male, each of them from one of the four most populated Nigerian ethnic groups -- Hausa, Yoruba, Igbo and Fulani. We followed a prescriptive approach by instructing annotators to strictly adhere to extensive annotation guidelines describing our taxonomy of hate speech (see reference paper for full guidelines). Tweets are annotated as belonging to one of three classes:

hateful (2 in the class column) if it contains an attack on an individual or a group based on the perceived possession of a certain characteristic (e.g., gender, race)
offensive (1 in the class column), if it contains a personal attack or an insult that does not target an individual based on their identity
neutral (0 in the class column) if it is neither hateful nor offensive.

If a tweet is labeled as hateful, it is also annotated for the communities being targeted. The possible target communities in our dataset are:

Christians (christian column)
Muslims (muslim)
Northerners (northerner)
Southerners (southerner)
Hausas (hausa)
Fulanis (fulani)
Yorubas (yoruba)
Igbos (igbo)
Women (women)
LGBTQ+ (lgbtq+)
Herdsmen (herdsmen)
Biafra (biafra)

Each tweet was labeled by three annotators. For the three-class annotation task, the 3 annotators agreed on 90% of labeled tweets, 2 out of 3 agreed in 9.5% of cases, and all three of them disagreed in 0.5% of cases (Krippendorff's alpha = 0.7).

BibTeX entry and citation information

TODO

Please cite the reference paper if you use this dataset.

@inproceedings{XXX}