Update README.md

README.md

@@ -4,4 +4,73 @@ datasets:
 - HannahRoseKirk/prism-alignment
 base_model:
 - Skywork/Skywork-Reward-Llama-3.1-8B-v0.2
----
+---
+
+
+# Meta Reward Modeling (MRM)
+
+## Overview
+
+**Meta Reward Modeling (MRM)** is a personalized reward modeling framework designed to adapt to diverse user preferences with limited feedback.  
+Instead of learning a single global reward function, MRM treats each user as a separate learning task and applies a meta-learning approach to learn a shared initialization that enables fast, few-shot personalization.
+
+MRM represents user-specific rewards as adaptive combinations over shared base reward functions and optimizes this structure through a bi-level meta-learning framework.  
+To improve robustness across heterogeneous users, MRM introduces a **Robust Personalization Objective (RPO)** that emphasizes hard-to-learn users during meta-training.
+
+This repository provides trained checkpoints for reward modeling and user-level preference evaluation.
+
+---
+
+## Links
+
+- 📄 **arXiv Paper**: https://arxiv.org/abs/XXXX.XXXXX  
+- 🤗 **Hugging Face Paper**: https://huggingface.co/papers/XXXX.XXXXX  
+- 💻 **GitHub Code**: https://github.com/ModalityDance/MRM  
+- 📦 **Hugging Face Collection**: https://huggingface.co/collections/ModalityDance/mrm
+
+---
+
+## Evaluation
+
+The model is evaluated using user-level preference accuracy with few-shot personalization.  
+Inference follows the same adaptation procedure used during training: for each user, the reward weights are initialized from the meta-learned initialization and updated with a small number of gradient steps on user-specific preference data.
+
+### Example evaluation script
+
+```bash
+python inference.py \
+  --embed_pt data/emb/prism/V1.pt \
+  --meta_json data/emb/prism/V1.json \
+  --ckpt path/to/checkpoint.pt \
+  --dataset PRISM \
+  --seen_train_limit -1 \
+  --unseen_train_limit -1 \
+  --hidden_layers 2 \
+  --inner_lr 1e-3 \
+  --eval_inner_epochs 1 \
+  --val_ratio 0.9 \
+  --score_threshold -1 \
+  --seed 42 \
+  --device cuda:0
+````
+
+---
+
+## Citation
+
+If you use this model or code in your research, please cite:
+
+```bibtex
+@article{mrm2025,
+  title   = {Meta Reward Modeling for Personalized Alignment},
+  author  = {Author Names},
+  journal = {arXiv preprint arXiv:XXXX.XXXXX},
+  year    = {2025}
+}
+```
+
+---
+
+## License
+
+This model is released under the **MIT License**.