---
tags:
- retrieval
- datastore
- language-modeling
---

# Adaptive-RETRO-GPT-1B Retrieval Datastore

External chunk datastore used by Adaptive-RETRO-GPT-1B during retrieval-pretraining.

- Source: `wikimedia/wikipedia` / `20231101.en`
- Chunks: 120000
- Chunk token window: 512
- Retriever: signed token-hash inner product top-k

Files:

- `chunks.npy`: tokenized retrieval chunks
- `embeddings.npy`: normalized chunk embeddings
- `chunk_metadata.jsonl`: decoded chunk text and metadata
- `datastore_meta.json`: preprocessing and retrieval config