license: apache-2.0
tags:
- medical
datasets:
- biomed
BioMedGPT-LM-7B
BioMedGPT-LM-7B is the first large generative language model based on Llama2 in the biomedical domain. It was fine-tuned from the Llama2-7B-Chat with millions of biomedical papers from the S2ORC corpus. Through further fine-tuning, BioMedGPT-LM-7B outperforms or is on par with human and significantly larger general-purpose foundation models on several biomedical QA benchmarks.
Training Details
The model was trained with the following hyperparameters:
- Epochs: 5
- Batch size: 192
- Cutoff length: 2048
- Learning rate: 2e-5
BioMedGPT-LM-7B is finetuned on over 26 billion tokens highly pertinent to the field of biomedicine. The fine-tuning data are extracted from 5.5 million biomedical papers in S2ORC data using PubMed Central (PMC)-ID and PubMed ID as criteria.
Model Developers
PharMolix
How to Use
BioMedGPT-LM-7B is the generative language model of BioMedGPT-10B, an open-source version of BioMedGPT. BioMedGPT is an open multimodal generative pre-trained transformer (GPT) for biomedicine, which bridges the natural language modality and diverse biomedical data modalities via large generative language models.
More technical details of BioMedGPT-LM-7B, BioMedGPT-10B, and BioMedGPT can be found in the technical report.
Intended Use Cases
| Method | Parameters (B) | Setting | MedMCQA(%) | PubMedQA(%) |
|---|---|---|---|---|
| Human (pass)* | - | Manual | - | 60.0 |
| Human (expert)* | - | Manual | 90 | 78.0 |
| ------------------------ | ---------------- | ----------- | ------------- | -------------- |
| InstructGPT* | 175 | zero-shot | 44.0 | 73.2 |
| ChatGPT* | - | zero-shot | 44.7 | 63.9 |
| Llama* | 7 | zero-shot | 24.3 | 5.2 |
| Llama2 | 7 | zero-shot | 30.6 | 3.7 |
| Llama2-Chat | 7 | zero-shot | 35.5 | 21.9 |
| ------------------------ | ---------------- | --------- | ------------- | -------------- |
| Llama | 7 | Fine-tuing | 48.2 | 73.4 |
| Llama2-Chat | 7 | Fine-tuing | 48.3 | 75.5 |
| PMC-Llama | 7 | Fine-tuing | 50.5 | 69.5 |
| ------------------------ | ---------------- | ----------- | ------------- | -------------- |
| BioMedGPT-LM-7B | 7 | Fine-tuing | 51.4 | 76.1 |
Out-of-scope Uses
Technical Report
"BioMedGPT: Open Multimodal Generative Pre-trained Transformer for BioMedicine"
github
https://github.com/BioFM/OpenBioMed
Limitations
[Highlight any limitations or potential issues of your model.]