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--- |
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language: de |
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widget: |
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- text: "Heute ist sehr schönes Wetter in" |
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license: mit |
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--- |
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# German GPT-2 model |
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In this repository we release (yet another) GPT-2 model, that was trained on ~90 GB from the ["German colossal, clean Common Crawl corpus"](https://german-nlp-group.github.io/projects/gc4-corpus.html) (GC4). |
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The model is meant to be an entry point for fine-tuning on other texts, and it is definitely not as good or "dangerous" as the English GPT-3 model. We do not plan extensive PR or staged releases for this model 😉 |
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--- |
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**Disclaimer**: the presented and trained language models in this repository are for **research only** purposes. |
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The GC4 corpus - that was used for training - contains crawled texts from the internet. Thus, this GPT-2 model can |
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be considered as highly biased, resulting in a model that encodes stereotypical associations along gender, race, |
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ethnicity and disability status. Before using and working with the released checkpoints, it is highly recommended |
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to read: |
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[On the Dangers of Stochastic Parrots: Can Language Models Be Too Big?](https://faculty.washington.edu/ebender/papers/Stochastic_Parrots.pdf) |
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from Emily M. Bender, Timnit Gebru, Angelina McMillan-Major and Shmargaret Shmitchell. |
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The aim of this released GPT-2 model for German is to boost research on (large) pre-trained language models for German, especially |
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for identifying biases and how to prevent them, as most research is currently done for English only. |
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--- |
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# Changelog |
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* 17.10.2021: We highly recommend to try the Text Generation Pipeline in Transformers. The quality of the generated text from the Inference Widget here can be lower. |
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* 06.09.2021: Initial release. Detailed information about training parameters coming soon. |
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# Text Generation |
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The following code snippet can be used to generate text with this German GPT-2 model: |
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```python |
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from transformers import pipeline |
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model_name = "stefan-it/german-gpt2-larger" |
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pipe = pipeline('text-generation', model=model_name, tokenizer=model_name) |
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text = pipe("Der Sinn des Lebens ist es", max_length=200)[0]["generated_text"] |
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print(text) |
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``` |
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# Training Data |
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The following archives are used for training the (first version) of this GPT-2 model: |
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* `de_head_0000_2015-48.tar.gz` |
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* `de_head_0000_2016-18.tar.gz` |
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* `de_head_0000_2016-44.tar.gz` |
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* `de_head_0000_2017-13.tar.gz` |
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* `de_head_0000_2017-30.tar.gz` |
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* `de_head_0000_2017-39.tar.gz` |
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* `de_head_0000_2017-51.tar.gz` |
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* `de_head_0000_2018-09.tar.gz` |
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* `de_head_0000_2018-17.tar.gz` |
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* `de_head_0000_2018-30.tar.gz` |
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* `de_head_0000_2018-39.tar.gz` |
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* `de_head_0000_2018-51.tar.gz` |
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* `de_head_0000_2019-18.tar.gz` |
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* `de_head_0000_2019-30.tar.gz` |
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* `de_head_0006_2019-09.tar.gz` |
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* `de_head_0006_2019-18.tar.gz` |
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* `de_head_0006_2019-30.tar.gz` |
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* `de_head_0006_2019-47.tar.gz` |
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* `de_head_0006_2020-10.tar.gz` |
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* `de_head_0007_2018-30.tar.gz` |
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* `de_head_0007_2018-51.tar.gz` |
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* `de_head_0007_2019-09.tar.gz` |
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* `de_head_0007_2019-18.tar.gz` |
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* `de_head_0007_2019-47.tar.gz` |
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* `de_head_0007_2020-10.tar.gz` |
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Details and URLs can be found on the [GC4](https://german-nlp-group.github.io/projects/gc4-corpus.html) |
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page. |
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Archives are then extracted and NLTK (`german` model) is used to sentence split the corpus. |
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This results in a total training corpus size of 90GB. |
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# Training Details |
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We use the recently re-trained `dbmdz/german-gpt2` ([version 2](https://huggingface.co/dbmdz/german-gpt2)!) |
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model as back-bone model. Thus, the tokenizer and vocab is the same as used in the `dbmdz/german-gpt2` model. |
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The model was trained on a v3-8 TPU, with the following parameters: |
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```bash |
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python ./run_clm_flax.py --output_dir=/mnt/datasets/german-gpt2-larger/ --name_or_path dbmdz/german-gpt2 --do_train --do_eval --block_size=512 --per_device_train_batch_size=16 --per_device_eval_batch_size=16 --learning_rate=5e-3 --warmup_steps=1000 --adam_beta1=0.9 --adam_beta2=0.98 --weight_decay=0.01 --overwrite_output_dir --num_train_epochs=20 --logging_steps=500 --save_steps=2500 --eval_steps=2500 --train_file /mnt/datasets/gc4/train.txt --validation_file /mnt/datasets/gc4/validation.txt --preprocessing_num_workers 16 |
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``` |
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Training took around 17 days for 20 epochs. |
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# Acknowledgments |
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Research supported with Cloud TPUs from Google's TensorFlow Research Cloud (TFRC). |
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Thanks for providing access to the TFRC ❤️ |
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Thanks to the generous support from the [Hugging Face](https://huggingface.co/) team, |
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it is possible to download this model from their S3 storage 🤗 |
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This project heavily profited from the amazing Hugging Face |
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[Community Week](https://discuss.huggingface.co/t/open-to-the-community-community-week-using-jax-flax-for-nlp-cv/7104). |
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Many thanks for the great organization and discussions during and after the week! |
