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[EMNLP 2025] Med-PRM: Medical Reasoning Models with Stepwise, Guideline-verified Process Rewards

Med-PRM 최신버젼 다운로드

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# [EMNLP 2025] Med-PRM: Medical Reasoning Models with Step-wise Guideline-verified Process Rewards

### News
* [September/15/2025] 🎉 **Med-PRM** has been selected as an **Oral Presentation** at EMNLP 2025! 🙌 See you in Suzhou!
* [August/20/2025] 🎉 **Med-PRM** is accepted to **[EMNLP 2025](https://2025.emnlp.org/)**! Congrats to all the authors!
* [June/15/2025] 📰 **Med-PRM** preprint is now available on [arXiv](https://arxiv.org/pdf/2506.11474).
* [June/15/2025] 🎉 We’re excited to present **Med-PRM** — a new medical process reward model that augments retrieval and is the first 8B-parameter framework to exceed **80% accuracy on MedQA**.

## 📖 Overview

- **MED-PRM** is a novel framework designed to enhance clinical decision-making by addressing errors in the reasoning process. It leverages retrieval-augmented generation (RAG) to verify each reasoning step against established medical knowledge bases, ensuring accuracy and reliability in medical diagnoses. MED-PRM is not intended to replace the expertise of healthcare professionals but to augment it, allowing them to focus on critical thinking and patient care while automating the verification of reasoning steps.

## Scoreboard

| Policy Model       | Reward Model       | Policy Base Model | Reward Base Model | Policy Training Method | Reward Training Method | MedQA-4 |
|--------------------|--------------------|-------------------|-------------------|------------------------|------------------------|---------|
| Llama-3.1-8B-Instruct       | Med PRM Reward v1.0 | Llama 3.1 8B IT    | Llama 3.1 8B IT    | -                       | SFT                     | 78.24   |
| Med PRM Policy v1.0 | Med PRM Reward v1.0 | Llama 3.1 8B IT | Llama 3.1 8B IT | Rejection Sampling | SFT | 79.18 |
| Llama-3-8B-UltraMedical | Med PRM Reward v1.0 | Llama 3.0 8B IT | Llama 3.1 8B IT | SFT | SFT | 79.87 |
| llama-3-meerkat-8b-v1.0 | Med PRM Reward v1.0 | Llama 3.0 8B IT | Llama 3.1 8B IT | SFT | SFT | 80.35 |

## 🔄 Experiment

1. **Prepare Data**: Execute the data preparation script:

```bash
   python python/0_preparing.py
   ```

2. **Score with PRM**: Run a quick test for Med-PRM (test set was sampled by Llama-3.1-8B-Instruct):

```bash
   bash scripts/4_scoring_PRM.sh
   ```

3. **Train the Model**: If desired, train the model (data already downloaded in step 5):

```bash
   bash scripts/2_training.sh
   ```

## Contact
Feel free to reach out to jhyun0414@hanyang.ac.kr or jisohn@ethz.ch

**BibTeX Citation**: If you use Med-PRM in your research, please cite it using the following BibTeX entry:

```bibtex
   @misc{medprm2025,
     title={Med-PRM: Medical Reasoning Models with Stepwise, Guideline-verified Process Rewards}, 
     author={Jaehoon Yun and Jiwoong Sohn and Jungwoo Park and Hyunjae Kim and Xiangru Tang and Daniel Shao and Yong Hoe Koo and Ko Minhyeok and Qingyu Chen and Mark Gerstein and Michael Moor and Jaewoo Kang},
     author+an = {1=first; 2=first; 3=first; 11=last; 12=last},
     year={2025},
     url={https://med-prm.github.io/},
     eprint={2506.11474},
     archivePrefix={arXiv},
     primaryClass={cs.CL}
   }
   ```

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