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--- |
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language: |
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- ru |
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tags: |
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- summarization |
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- bert |
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- rubert |
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license: mit |
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--- |
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# rubert_ria_headlines |
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## Description |
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*bert2bert* model, initialized with the `DeepPavlov/rubert-base-cased` pretrained weights and |
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fine-tuned on the first 99% of ["Rossiya Segodnya" news dataset](https://github.com/RossiyaSegodnya/ria_news_dataset) for 2 epochs. |
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## Usage example |
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```python |
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from transformers import AutoTokenizer, AutoModelForSeq2SeqLM |
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MODEL_NAME = "dmitry-vorobiev/rubert_ria_headlines" |
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tokenizer = AutoTokenizer.from_pretrained(MODEL_NAME) |
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model = AutoModelForSeq2SeqLM.from_pretrained(MODEL_NAME) |
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text = "Скопируйте текст статьи / новости" |
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encoded_batch = tokenizer.prepare_seq2seq_batch( |
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[text], |
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return_tensors="pt", |
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padding="max_length", |
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truncation=True, |
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max_length=512) |
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output_ids = model.generate( |
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input_ids=encoded_batch["input_ids"], |
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max_length=36, |
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no_repeat_ngram_size=3, |
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num_beams=5, |
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top_k=0 |
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) |
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headline = tokenizer.decode(output_ids[0], |
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skip_special_tokens=True, |
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clean_up_tokenization_spaces=False) |
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print(headline) |
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``` |
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## Datasets |
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- [ria_news](https://github.com/RossiyaSegodnya/ria_news_dataset) |
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## How it was trained? |
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I used free TPUv3 on kaggle. The model was trained for 3 epochs with effective batch size 192 and soft restarts (warmup steps 1500 / 500 / 500 with new optimizer state on each epoch start). |
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- [1 epoch notebook](https://www.kaggle.com/dvorobiev/try-train-seq2seq-ria-tpu?scriptVersionId=53254694) |
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- [2 epoch notebook](https://www.kaggle.com/dvorobiev/try-train-seq2seq-ria-tpu?scriptVersionId=53269040) |
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- [3 epoch notebook](https://www.kaggle.com/dvorobiev/try-train-seq2seq-ria-tpu?scriptVersionId=53280797) |
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Common train params: |
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```shell |
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export XLA_USE_BF16=1 |
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export XLA_TENSOR_ALLOCATOR_MAXSIZE=100000000 |
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python nlp_headline_rus/src/train_seq2seq.py \ |
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--do_train \ |
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--tie_encoder_decoder \ |
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--max_source_length 512 \ |
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--max_target_length 32 \ |
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--val_max_target_length 48 \ |
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--tpu_num_cores 8 \ |
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--per_device_train_batch_size 24 \ |
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--gradient_accumulation_steps 1 \ |
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--learning_rate 5e-4 \ |
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--adam_epsilon 1e-6 \ |
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--weight_decay 1e-5 \ |
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``` |
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## Validation results |
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- Using [last 1% of ria](https://drive.google.com/drive/folders/1ztAeyb1BiLMgXwOgOJS7WMR4PGiI1q92) dataset |
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- Using [gazeta_ru test](https://drive.google.com/drive/folders/1CyowuRpecsLTcDbqEfmAvkCWOod58g_e) split |
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- Using [gazeta_ru val](https://drive.google.com/drive/folders/1XZFOXHSXLKdhzm61ceVLw3aautrdskIu) split |
