Tech Freedom Circle

Nov 8, 2026 · Artificial Intelligence

RRF in RAG: How Reciprocal Rank Fusion Solves ES-Milvus Score Fusion

This article explains Reciprocal Rank Fusion (RRF) for merging Elasticsearch sparse retrieval and Milvus vector retrieval scores in RAG systems, covering standard vs weighted RRF, the smoothing constant k, static weight configuration principles, and dynamic weight adjustment via intent classification and slot extraction.