#Retrieval

Posts about retrieval. ← All posts

Feb 23, 2026 · Engineering

HyDE — generate a hypothetical answer to improve retrieval

Embedding a question and embedding an answer often produce different vectors. HyDE generates a hypothetical answer to the question, embeds *that*, and retrieves on it. Retrieval quality goes up disproportionately.

RAGHyDERetrieval

Feb 22, 2026 · Engineering

Self-RAG and CRAG — when to retrieve, when to skip, when to correct

Naive RAG retrieves on every query. Self-RAG decides whether to retrieve. CRAG decides whether the retrieved content is good enough or needs corrective retrieval. Two papers; both worth implementing.

RAGSelf-RAGCRAGRetrieval