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txus/
calbert-base-uncased

Name: calbert-base-uncased
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Calbert: a Catalan Language Model

Introduction

CALBERT is an open-source language model for Catalan pretrained on the ALBERT architecture.

It is now available on Hugging Face in its tiny-uncased version and base-uncased (the one you're looking at) as well, and was pretrained on the OSCAR dataset.

For further information or requests, please go to the GitHub repository

Pre-trained models

Model	Arch.	Training data
`codegram` / `calbert-tiny-uncased`	Tiny (uncased)	OSCAR (4.3 GB of text)
`codegram` / `calbert-base-uncased`	Base (uncased)	OSCAR (4.3 GB of text)

How to use Calbert with HuggingFace

Load Calbert and its tokenizer:

python

from transformers import AutoModel, AutoTokenizer

tokenizer = AutoTokenizer.from_pretrained("codegram/calbert-base-uncased")
model = AutoModel.from_pretrained("codegram/calbert-base-uncased")

model.eval() # disable dropout (or leave in train mode to finetune

Filling masks using pipeline

python

from transformers import pipeline

calbert_fill_mask  = pipeline("fill-mask", model="codegram/calbert-base-uncased", tokenizer="codegram/calbert-base-uncased")
results = calbert_fill_mask("M'agrada [MASK] això")
# results
# [{'sequence': "[CLS] m'agrada molt aixo[SEP]", 'score': 0.614592969417572, 'token': 61},
#  {'sequence': "[CLS] m'agrada moltíssim aixo[SEP]", 'score': 0.06058056280016899, 'token': 4867},
#  {'sequence': "[CLS] m'agrada més aixo[SEP]", 'score': 0.017195818945765495, 'token': 43},
#  {'sequence': "[CLS] m'agrada llegir aixo[SEP]", 'score': 0.016321714967489243, 'token': 684},
#  {'sequence': "[CLS] m'agrada escriure aixo[SEP]", 'score': 0.012185849249362946, 'token': 1306}]

Extract contextual embedding features from Calbert output

python

import torch
# Tokenize in sub-words with SentencePiece
tokenized_sentence = tokenizer.tokenize("M'és una mica igual")
# ['▁m', "'", 'es', '▁una', '▁mica', '▁igual']

# 1-hot encode and add special starting and end tokens
encoded_sentence = tokenizer.encode(tokenized_sentence)
# [2, 109, 7, 71, 36, 371, 1103, 3]
# NB: Can be done in one step : tokenize.encode("M'és una mica igual")

# Feed tokens to Calbert as a torch tensor (batch dim 1)
encoded_sentence = torch.tensor(encoded_sentence).unsqueeze(0)
embeddings, _ = model(encoded_sentence)
embeddings.size()
# torch.Size([1, 8, 768])
embeddings.detach()
# tensor([[[-0.0261,  0.1166, -0.1075,  ..., -0.0368,  0.0193,  0.0017],
#          [ 0.1289, -0.2252,  0.9881,  ..., -0.1353,  0.3534,  0.0734],
#          [-0.0328, -1.2364,  0.9466,  ...,  0.3455,  0.7010, -0.2085],
#          ...,
#          [ 0.0397, -1.0228, -0.2239,  ...,  0.2932,  0.1248,  0.0813],
#          [-0.0261,  0.1165, -0.1074,  ..., -0.0368,  0.0193,  0.0017],
#          [-0.1934, -0.2357, -0.2554,  ...,  0.1831,  0.6085,  0.1421]]])

Authors

CALBERT was trained and evaluated by Txus Bach, as part of Codegram's applied research.

txus/calbert-base-uncased

Calbert: a Catalan Language Model

Introduction

Pre-trained models

How to use Calbert with HuggingFace

Load Calbert and its tokenizer:

Filling masks using pipeline

Extract contextual embedding features from Calbert output

Authors

txus/
calbert-base-uncased