Glossary

• RAG: Retrieval-Augmented Generation, combining search with generation.
• Chunk: A sliced portion of a document used for embedding and retrieval.
• Embedding: Vector representation of text.
• pgvector: PostgreSQL extension for vector similarity search.
• HNSW: Approximate nearest neighbor index used by pgvector.
• zhparser: PostgreSQL full-text search parser for Chinese text.
• CORS: Cross-Origin Resource Sharing.