README.md

metadata

title: 'Vanishing Voices: Language Atlas'
emoji: 🌍
colorFrom: indigo
colorTo: blue
sdk: streamlit
sdk_version: 1.29.0
app_file: rag_hf.py
pinned: false

Vanishing Voices: South America's Endangered Language Atlas 🌍

This app explores three retrieval-augmented generation (RAG) methods to support the documentation of South America's endangered indigenous languages:

• Standard Search: Based on Wikipedia/Wikidata embeddings only.
• Hybrid Search: Combines embeddings with RDF cultural knowledge.
• GraphSAGE Search: Includes structural information from a graph neural network.

🧠 Powered by

• 🤗 Hugging Face Inference Endpoints
• 🧱 SentenceTransformers for multilingual embeddings
• 🧮 NetworkX + RDFLib for cultural graphs
• 🔗 Glottolog, Wikidata, Wikipedia

📊 Features

• RAG with local numpy embeddings
• RDF triple inspection
• Comparison of methods in terms of relevance and hallucination
• Custom prompt injected into a Hugging Face endpoint

Note: This app requires your own HF API token in .streamlit/secrets.toml.

📄 Instructions

1. Upload your own .ttl, .pkl, .npy files for graph and embeddings.
2. Set up HF_ENDPOINT and HF_API_TOKEN in .streamlit/secrets.toml.
3. Deploy via Streamlit or Hugging Face Spaces.

---