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+# BioBERT Pre-trained Weights
+
+This repository provides pre-trained weights of BioBERT, a language representation model for biomedical domain, especially designed for biomedical text mining tasks such as biomedical named entity recognition, relation extraction, question answering, etc. Please refer to our paper [BioBERT: pre-trained biomedical language representation model for biomedical text mining](https://arxiv.org/abs/1901.08746) for more details.
+
+## Downloading pre-trained weights
+Go to [releases](/~https://github.com/naver/biobert-pretrained/releases) section of this repository, and download pre-trained weights of BioBERT. We provide three combinations of pre-trained BioBERT: BERT + PubMed, BERT + PMC, and BERT + PubMed + PMC. Pre-training was based on the [original BERT code](/~https://github.com/google-research/bert) provided by Google, and details are described in our paper.
+
+## Pre-training corpus
+We do not provide pre-processed version of each corpus. However, each pre-training corpus could be found in the following links:
+*   **`PubMed Abstracts1`**: ftp://ftp.ncbi.nlm.nih.gov/pubmed/baseline/
+*   **`PubMed Abstracts2`**: ftp://ftp.ncbi.nlm.nih.gov/pubmed/updatefiles/
+*   **`PubMed Central Full Texts`**: ftp://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_bulk/
+
+Estimated size of each corpus is 4.5 billion words for **`PubMed Abstracts1`** + **`PubMed Abstracts2`**, and 13.5 billion words for **`PubMed Central Full Texts`**.
+
+## Fine-tuning BioBERT
+To fine-tunine BioBERT on biomedical text mining tasks using provided pre-trained weights, refer to the [DMIS GitHub repository for BioBERT](/~https://github.com/dmis-lab/biobert).
+
+## Citation
+For now, cite [the Arxiv paper](https://arxiv.org/abs/1901.08746):
+```
+@article{lee2019biobert,
+  title={BioBERT: pre-trained biomedical language representation model for biomedical text mining},
+  author={Lee, Jinhyuk and Yoon, Wonjin and Kim, Sungdong and Kim, Donghyeon and Kim, Sunkyu and So, Chan Ho and Kang, Jaewoo},
+  journal={arXiv preprint arXiv:1901.08746},
+  year={2019}
+}
+```
+
+## Contact information
+For help or issues using pre-trained weights of BioBERT, please submit a GitHub issue. Please contact Jinhyuk Lee
+(`lee.jnhk@gmail.com`), or Sungdong Kim (`sungdong.kim@navercorp.com`) for communication related to pre-trained weights of BioBERT.