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--- |
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language: ja |
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tags: |
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- t5 |
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- text2text-generation |
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- seq2seq |
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license: apache-2.0 |
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datasets: |
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- mc4 |
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- wiki40b |
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--- |
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# t5-base-japanese-web (with Byte-fallback) |
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## Description |
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[megagonlabs/t5-base-japanese-web](https://huggingface.co/megagonlabs/t5-base-japanese-web) is a T5 (Text-to-Text Transfer Transformer) model pre-trained on Japanese web texts. |
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Training codes are [available on GitHub](https://github.com/megagonlabs/t5-japanese). |
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### Corpora |
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We used following corpora for pre-training. |
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- Japanese in [mC4/3.0.1](https://huggingface.co/datasets/mc4) (We used [Tensorflow native format](https://github.com/allenai/allennlp/discussions/5056)) |
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- 87,425,304 pages |
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- 782 GB in TFRecord format |
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- [Japanese](https://www.tensorflow.org/datasets/catalog/wiki40b#wiki40bja) in [wiki40b/1.3.0](https://www.tensorflow.org/datasets/catalog/wiki40b) |
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- 828,236 articles (2,073,584 examples) |
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- 2 GB in TFRecord format |
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### Tokenizer |
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We used Japanese Wikipedia to train [SentencePiece](https://github.com/google/sentencepiece). |
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- Vocabulary size: 32,000 |
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- [Byte-fallback](https://github.com/google/sentencepiece/releases/tag/v0.1.9): Enabled |
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### Parameters |
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- T5 model: [models/t5.1.1.base.gin](https://github.com/google-research/text-to-text-transfer-transformer/blob/main/t5/models/gin/models/t5.1.1.base.gin) |
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- Training steps: 1,000,000 |
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It took about 126 hours with TPU v3-8 |
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## Related models |
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- [日本語T5事前学習済みモデル (sonoisa/t5-base-japanese)](https://huggingface.co/sonoisa/t5-base-japanese) |
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- [日本語T5事前学習済みモデル (sonoisa/t5-base-japanese-mC4-Wikipedia)](https://huggingface.co/sonoisa/t5-base-japanese-mC4-Wikipedia) |
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## License |
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Apache License 2.0 |
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## Citations |
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- mC4 |
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Contains information from `mC4` which is made available under the [ODC Attribution License](https://opendatacommons.org/licenses/by/1-0/). |
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```bibtex |
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@article{2019t5, |
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author = {Colin Raffel and Noam Shazeer and Adam Roberts and Katherine Lee and Sharan Narang and Michael Matena and Yanqi Zhou and Wei Li and Peter J. Liu}, |
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title = {Exploring the Limits of Transfer Learning with a Unified Text-to-Text Transformer}, |
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journal = {arXiv e-prints}, |
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year = {2019}, |
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archivePrefix = {arXiv}, |
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eprint = {1910.10683}, |
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} |
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``` |
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- wiki40b |
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```bibtex |
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@inproceedings{49029, |
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title = {Wiki-40B: Multilingual Language Model Dataset}, |
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author = {Mandy Guo and Zihang Dai and Denny Vrandecic and Rami Al-Rfou}, |
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year = {2020}, |
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booktitle = {LREC 2020} |
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} |
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``` |
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