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Davlan/
naija-bert-large

Name: naija-bert-large
Availability: InStock

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naija-bert-large

NaijaBERT was created by pre-training a BERT model with token dropping on five Nigerian languages (English, Hausa, Igbo, Naija, and Yoruba) texts for about 100K steps. It was trained using BERT-base architecture with Tensorflow Model Garden

Pre-training corpus

A mix of WURA, Wikipedia and MT560 data

How to use

You can use this model with Transformers pipeline for masked token prediction.

python

>>> from transformers import pipeline
>>> unmasker = pipeline('fill-mask', model='Davlan/naija-bert-large')
>>> unmasker("Ọjọ kẹsan-an, [MASK] Kẹjọ ni wọn ri oku Baba")

[{'score': 0.9981744289398193, 'token': 3785, 'token_str': 'osu', 'sequence': 'ojo kesan - an, osu kejo ni won ri oku baba'}, {'score': 0.0015279919607564807, 'token': 3355, 'token_str': 'ojo', 'sequence': 'ojo kesan - an, ojo kejo ni won ri oku baba'}, {'score': 0.0001734074903652072, 'token': 11780, 'token_str': 'osun', 'sequence': 'ojo kesan - an, osun kejo ni won ri oku baba'}, {'score': 9.066923666978255e-05, 'token': 21579, 'token_str': 'oṣu', 'sequence': 'ojo kesan - an, oṣu kejo ni won ri oku baba'}, {'score': 1.816015355871059e-05, 'token': 3387, 'token_str': 'odun', 'sequence': 'ojo kesan - an, odun kejo ni won ri oku baba'}]

Acknowledgment

We thank @stefan-it for providing the pre-processing and pre-training scripts. Finally, we would like to thank Google Cloud for providing us access to TPU v3-8 through the free cloud credits. Model trained using flax, before converted to pytorch.

BibTeX entry and citation info.

@misc{david_adelani_2025,
	author       = { David Adelani },
	title        = { naija-bert-large (Revision 1f7243d) },
	year         = 2025,
	url          = { https://huggingface.co/Davlan/naija-bert-large },
	doi          = { 10.57967/hf/5863 },
	publisher    = { Hugging Face }
}