## RAG la gi?
Retrieval Augmented Generation ket hop: - Retrieval: Tim kiem tu knowledge base - Generation: Tao cau tra loi tu LLM
## Setup ChromaDB
```python import chromadb client = chromadb.Client() collection = client.create_collection("docs") ```
## Index va Query
```python collection.add(documents=["doc1", "doc2"], ids=["1", "2"]) results = collection.query(query_texts=["search"], n_results=2) ```
## Production Tips
1. Chunking documents 2. Metadata filtering 3. Reranking results
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