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--- |
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language: |
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- ru |
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- myv |
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tags: |
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- erzya |
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- mordovian |
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- fill-mask |
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- pretraining |
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- embeddings |
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- masked-lm |
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- feature-extraction |
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- sentence-similarity |
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license: cc-by-sa-4.0 |
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datasets: |
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- slone/myv_ru_2022 |
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--- |
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This is an Erzya (`myv`, cyrillic script) sentence encoder from the paper "The first neural machine translation system for the Erzya language". |
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It is based on [sentence-transformers/LaBSE](https://huggingface.co/sentence-transformers/LaBSE) ([license here](https://tfhub.dev/google/LaBSE/2)), but with updated vocabulary and checkpoint: |
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- Removed all tokens except the most popular ones for English or Russian; |
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- Added extra tokens for Erzya language; |
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- Fine-tuned on the [slone/myv_ru_2022](https://huggingface.co/slone/myv_ru_2022) corpus using a mixture of tasks: |
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- Cross-lingual distillation of sentence embeddings from the original LaBSE model, using the parallel `ru-myv` corpus; |
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- Masked language modelling on `myv` monolingual data; |
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- Sentence pair classification to distinguish correct `ru-myv` translations from random pairs. |
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The model can be used as a sentence encoder or a masked language modelling predictor for Erzya, or fine-tuned for any downstream NLU dask. |
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Sentence embeddings can be produced with the code below: |
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```python |
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import torch |
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from transformers import AutoTokenizer, AutoModel |
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tokenizer = AutoTokenizer.from_pretrained("slone/LaBSE-en-ru-myv-v1") |
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model = AutoModel.from_pretrained("slone/LaBSE-en-ru-myv-v1") |
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sentences = ["Hello World", "Привет Мир", "Шумбратадо Мастор"] |
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encoded_input = tokenizer(sentences, padding=True, truncation=True, return_tensors='pt') |
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with torch.no_grad(): |
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model_output = model(**encoded_input) |
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embeddings = model_output.pooler_output |
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embeddings = torch.nn.functional.normalize(embeddings) |
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print(embeddings.shape) # torch.Size([3, 768]) |
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``` |
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