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language: et |
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# EstBERT |
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### What's this? |
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The EstBERT model is a pretrained BERT<sub>Base</sub> model exclusively trained on Estonian cased corpus on both 128 and 512 sequence length of data. |
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### How to use? |
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You can use the model transformer library both in tensorflow and pytorch version. |
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``` |
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from transformers import AutoTokenizer, AutoModelForMaskedLM |
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tokenizer = AutoTokenizer.from_pretrained("tartuNLP/EstBERT") |
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model = AutoModelForMaskedLM.from_pretrained("tartuNLP/EstBERT") |
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``` |
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You can also download the pretrained model from here, [EstBERT_128]() [EstBERT_512]() |
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#### Dataset used to train the model |
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The EstBERT model is trained both on 128 and 512 sequence length of data. For training the EstBERT we used the [Estonian National Corpus 2017](https://metashare.ut.ee/repository/browse/estonian-national-corpus-2017/b616ceda30ce11e8a6e4005056b40024880158b577154c01bd3d3fcfc9b762b3/), which was the largest Estonian language corpus available at the time. It consists of four sub-corpora: Estonian Reference Corpus 1990-2008, Estonian Web Corpus 2013, Estonian Web Corpus 2017 and Estonian Wikipedia Corpus 2017. |
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### Why would I use? |
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Overall EstBERT performs better in parts of speech (POS), name entity recognition (NER), rubric, and sentiment classification tasks compared to mBERT and XLM-RoBERTa. The comparative results can be found below; |
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|Model |UPOS |XPOS |Morph |bf UPOS |bf XPOS |Morph | |
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|--------------|----------------------------|-------------|-------------|-------------|----------------------------|----------------------------| |
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| EstBERT | **_97.89_** | **98.40** | **96.93** | **97.84** | **_98.43_** | **_96.80_** | |
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| mBERT | 97.42 | 98.06 | 96.24 | 97.43 | 98.13 | 96.13 | |
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| XLM-RoBERTa | 97.78 | 98.36 | 96.53 | 97.80 | 98.40 | 96.69 | |
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|Model|Rubric<sub>128</sub> |Sentiment<sub>128</sub> | Rubric<sub>128</sub> |Sentiment<sub>512</sub> | |
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|-------------------|----------------------------|--------------------|-----------------------------------------------|----------------------------| |
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| EstBERT | **_81.70_** | 74.36 | **80.96** | 74.50 | |
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| mBERT | 75.67 | 70.23 | 74.94 | 69.52 | |
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| XLM\-RoBERTa | 80.34 | **74.50** | 78.62 | **_76.07_**| |
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|Model |Precicion<sub>128</sub> |Recall<sub>128</sub> |F1-Score<sub>128</sub> |Precision<sub>512</sub> |Recall<sub>512</sub> |F1-Score<sub>512</sub> | |
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|--------------|----------------|----------------------------|----------------------------|----------------------------|-------------|----------------| |
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| EstBERT | **88.42** | 90.38 |**_89.39_** | 88.35 | 89.74 | 89.04 | |
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| mBERT | 85.88 | 87.09 | 86.51 |**_88.47_** | 88.28 | 88.37 | |
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| XLM\-RoBERTa | 87.55 |**_91.19_** | 89.34 | 87.50 | **90.76** | **89.10** | |
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