Tag

#reciprocal rank fusion

Query Rewriting for RAG: Fix Retrieval at the Query Side

You tuned chunking, added a reranker, and swapped embeddings, but RAG still misses on short or conversational questions. The reason is often the query itself. Here is how query rewriting, multi-query, HyDE, and expansion fix retrieval at the query side, and how to measure

Muhammad Qasim HammadJuly 24, 20266 min

RAG & Knowledge

Hybrid Search for RAG in n8n: BM25 + Vector, and When to Use Each

Vector search nails meaning but misses exact tokens like SKUs, error codes, and function names. Hybrid search adds a BM25 keyword leg and fuses both with Reciprocal Rank Fusion. Here is when each wins and how to wire it in n8n with Qdrant or pgvector.

Muhammad Qasim HammadJune 29, 202610 min