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README.md
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# mGPT
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mGPT is pre-trained on the [mC4 dataset](https://huggingface.co/datasets/mc4) using a causal language modeling objective. It was introduced in this [paper](https://arxiv.org/abs/2110.06609) and first released on this page.
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## Model description
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mGPT is a Transformer-based model which pre-trained on massive multilingual data covering over 101 languages. Similar to GPT-2, It was pre-trained on the raw texts only, with no human labeling. We use the same tokenization and vocabulary as the [mT5 model](https://huggingface.co/google/mt5-base).
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## Intended uses
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You can use the raw model for text generation or using prompts for adapting it to a downstream task.
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## How to use
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You can use this model directly with a pipeline for text generation. Here is how to use this model to get the features of a given text in PyTorch:
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```python
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from transformers import MT5Tokenizer, GPT2LMHeadModel, TextGenerationPipeline
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tokenizer = MT5Tokenizer.from_pretrained("THUMT/mGPT")
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model = GPT2LMHeadModel.from_pretrained("THUMT/mGPT")
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pipeline = TextGenerationPipeline(model=model, tokenizer=tokenizer)
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text = "Replace me by any text you'd like."
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text = pipeline(text, do_sample=True, max_length=1024)[0]["generated_text"]
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```
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## Preprocessing
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The texts are tokenized using `sentencepiece` and a vocabulary size of 250,100. The inputs are sequences of 1,024 consecutive tokens. We use `<extra_id_0>` to separate lines in a document.
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## BibTeX entry and citation info
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```bibtex
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@misc{tan2021msp,
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title={MSP: Multi-Stage Prompting for Making Pre-trained Language Models Better Translators},
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author={Zhixing Tan and Xiangwen Zhang and Shuo Wang and Yang Liu},
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year={2021},
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eprint={2110.06609},
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archivePrefix={arXiv},
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primaryClass={cs.CL}
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}
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```
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