TswanaBERT is a transformer model pre-trained on a corpus of Setswana language data in a self-supervised fashion. works in both pytorch and TF
---
language: setswana
---
# TswanaBert
## Model Description.
TswanaBERT is a transformer model pretrained on a corpus of Setswana data in a self-supervised fashion by masking part of the input words and training to predict the masks.
## Intended uses & limitations
The model can be used for either masked language modeling or next word prediction. it can also be fine-tuned for a specifict application.
#### How to use
```python
>>> from transformers import pipeline
>>> from transformers import AutoTokenizer, AutoModelWithLMHead
>>> tokenizer = AutoTokenizer.from_pretrained("MoseliMotsoehli/TswanaBert")
>>> model = AutoModelWithLMHead.from_pretrained("MoseliMotsoehli/TswanaBert")
>>> unmasker = pipeline('fill-mask', model=model, tokenizer=tokenizer)
>>> unmasker("Ntshopotse e godile.")
[{'score': 0.32749542593955994,
'sequence': ' Ntshopotse setse e godile. ',
'token': 538,
'token_str': 'Ġsetse'},
{'score': 0.060260992497205734,
'sequence': ' Ntshopotse le e godile. ',
'token': 270,
'token_str': 'Ġle'},
{'score': 0.058460816740989685,
'sequence': ' Ntshopotse bone e godile. ',
'token': 364,
'token_str': 'Ġbone'},
{'score': 0.05694682151079178,
'sequence': ' Ntshopotse ga e godile. ',
'token': 298,
'token_str': 'Ġga'},
{'score': 0.0565204992890358,
'sequence': ' Ntshopotse, e godile. ',
'token': 16,
'token_str': ','}]
```
#### Limitations and bias
The model is trained on a fairly small collection of setwana, mostly from news articles and creative writtings, and so is not representative enough of the language as yet.
## Training data
1. The largest portion of this dataset (10k) sentences of text, comes from the Leipzig Corpora Collection
2. I Then added SABC news headlines collected by Marivate Vukosi, & Sefara Tshephisho, (2020) that is generously made available on zenoodo. This added 185 tswana sentences to my corpus.
3. I went on to add 300 more sentences by scrapping following sites news sites and blogs that mostly based in Botswana. I actively con …