README.md

# Wiki-RAG
This repository hosts a prebuilt FAISS index and metadata for Retrieval-Augmented Generation (RAG) over English Wikipedia.

📍 Hugging Face Hub: [royrin/wiki-rag](https://huggingface.co/royrin/wiki-rag)



Quick start to download entire Wikipedia and load it into a RAG for you. This RAG code gives you a RAG that directly gives you the relevant wikipedia article. It's entirely offline, so saves on requests to Wikipedia. 

Note: The RAG is generated on the first 3 paragraphs of the Wikipedia page. To then get the full page from Wikipedia, you can access a local version of Wikipedia, or make an API call for that page.

There are things like this, but somehow nothing quite like this. Other things require many HTTP requests to Wikipedia (like this https://llamahub.ai/l/readers/llama-index-readers-wikipedia?from=).

Date of download of Wikipedia : April 10, 2025, from `https://dumps.wikimedia.org/other/pageviews/2024/2024-12/`.




## 🛠️ Usage

```python
from huggingface_hub import hf_hub_download
import faiss
import pickle

# Download index and metadata
index_path = hf_hub_download("royrin/wiki-rag", PATH_TO_INDEX)
meta_path = hf_hub_download("royrin/wiki-rag", PATH_TO_METADATA)

# Load FAISS index
index = faiss.read_index(index_path)

```




# Do it for yourself, from Scratch
1. Download Wikipedia full (~22 GB, 2 hours to download over Wget, ~30 min using Aria2c)
    `aria2c -x 16 -s 16 https://dumps.wikimedia.org/enwiki/latest/enwiki-latest-pages-articles.xml.bz2`
2. Extract Wikipedia into machine-readable code:
    `python3 WikiExtractor.py ../enwiki-latest-pages-articles.xml.bz2 -o extracted --json`
3. Get list of top 100k or 1M articles, by page-views from
    `https://dumps.wikimedia.org/other/pageviews/2024/2024-12/`
4. load abstracts into RAG




# Helpful Links:
1. Wikipedia downloads: `https://dumps.wikimedia.org/enwiki/latest/`
2. Wikipedia page views: `https://dumps.wikimedia.org/other/pageviews/2024/2024-12/`