Search and RAG
Lexical search, embeddings, vector databases, ingestion, chunking.
9 lessonsquests, about 1.6 h. None is open yet: they open here as they are written. Take them in any order.
Introductory4 lessonsquests
- The RAG pipeline
- Lexical search and BM25
- Ingestion apart from querying
- Embeddings and similarity
Intermediate5 lessonsquests
- Vector search, exact and approximate
- Vectors in PostgreSQL
- Chunking long documents
- Shipping embeddings
- Freshness, metadata and live retrieval