Reference

I use the Reference section for topics you may need to look up without following the Course in sequence. Each page explains one concept and links back to the related part of the system.

Retrieval

• Chunking strategies
• Embeddings and cosine similarity
• PostgreSQL and pgvector
• Retrieval and hybrid ranking
• Reranking

Sources

• Parsing overview
• Text and code
• Structured records
• Webpages
• PDF and OCR

Generation and evaluation

• Evidence and grounded generation
• Evaluating retrieval and Answers
• RAG-specific testing

Changing recommendations

• Providers and models
• Deployment options
• Glossary