# FAISS Index

This repository contains a FAISS index of TopiOCQA split into multiple parts in the `index/` folder.

## Reconstruct the index

```bash
cat part_* > e5_Flat.index
````

## Usage

```python
import faiss

index = faiss.read_index("e5_Flat.index")
```

This index can be used with the ChatR1 code repository (https://github.com/SimonLupart/ChatR1).

## Notes

* All `part_*` files are required.
* Do not modify the part files before reconstruction.

## Citations

This index was built as part of the ACL main paper ChatR1, please cite our work.

```bibtex
@article{lupart2025chatr1,
  title={Chatr1: Reinforcement learning for conversational reasoning and retrieval augmented question answering},
  author={Lupart, Simon and Aliannejadi, Mohammad and Kanoulas, Evangelos},
  journal={arXiv preprint arXiv:2510.13312},
  year={2025}
}
```