dummy-model

Model description

CamemBERT is a state-of-the-art language model for French based on the RoBERTa model. It is now available on Hugging Face in 6 different versions with varying number of parameters, amount of pretraining data and pretraining data source domains.

Evaluation

The model developers evaluated CamemBERT using four different downstream tasks for French: part-of-speech (POS) tagging, dependency parsing, named entity recognition (NER) and natural language inference (NLI).

Limitations and bias

Significant research has explored bias and fairness issues with language models (see, e.g., Sheng et al. (2021) and Bender et al. (2021)).

This model was pretrinaed on a subcorpus of OSCAR multilingual corpus. Some of the limitations and risks associated with the OSCAR dataset, which are further detailed in the OSCAR dataset card, include the following:

The quality of some OSCAR sub-corpora might be lower than expected, specifically for the lowest-resource languages.

Constructed from Common Crawl, Personal and sensitive information might be present.

Training data

OSCAR or Open Super-large Crawled Aggregated coRpus is a multilingual corpus obtained by language classification and filtering of the Common Crawl corpus using the Ungoliant architecture.

How to use

-Filling masks using pipeline

>>> from transformers import pipeline
>>> camembert_fill_mask = pipeline("fill-mask", model="camembert-base")
>>> results = camembert_fill_mask("Le camembert est <mask> :)")

>>> result
[{'score': 0.49091097712516785,
  'token': 7200,
  'token_str': 'délicieux',
  'sequence': 'Le camembert est délicieux :)'},
 {'score': 0.1055697426199913,
  'token': 2183,
  'token_str': 'excellent',
  'sequence': 'Le camembert est excellent :)'},
 {'score': 0.03453319892287254,
  'token': 26202,
  'token_str': 'succulent',
  'sequence': 'Le camembert est succulent :)'},
 {'score': 0.03303128108382225,
  'token': 528,
  'token_str': 'meilleur',
  'sequence': 'Le camembert est meilleur :)'},
 {'score': 0.030076386407017708,
  'token': 1654,
  'token_str': 'parfait',
  'sequence': 'Le camembert est parfait :)'}]

-Extract contextual embedding features from Camembert output

import torch

>>> tokenized_sentence = tokenizer.tokenize("J'aime le camembert !")
>>> encoded_sentence = tokenizer.encode(tokenized_sentence)
# Can be done in one step : tokenize.encode("J'aime le camembert !")

>>> tokenized_sentence 
['▁J', "'", 'aime', '▁le', '▁ca', 'member', 't', '▁!']
>>> encoded_sentence
[5, 121, 11, 660, 16, 730, 25543, 110, 83, 6] 

encoded_sentence = torch.tensor(encoded_sentence).unsqueeze(0)
embeddings, _ = camembert(encoded_sentence)
# embeddings.detach()
# embeddings.size torch.Size([1, 10, 768])
# tensor([[[-0.0254,  0.0235,  0.1027,  ..., -0.1459, -0.0205, -0.0116],
#         [ 0.0606, -0.1811, -0.0418,  ..., -0.1815,  0.0880, -0.0766],
#         [-0.1561, -0.1127,  0.2687,  ..., -0.0648,  0.0249,  0.0446],
#         ...,