AI Architecture
Re-Ranking with Cohere & Cross-Encoders: Supercharging RAG Precision by 40%
Implement two-stage retrieval: fetch 50 candidate chunks with fast vector search and re-rank the top 5 with Cohere Cross-Encoders.
3 min
Two-Stage Retrieval Architecture
1. Stage 1 (Bi-Encoder): Rapidly fetch 20-50 candidate documents with vector embeddings. 2. Stage 2 (Cross-Encoder): Deeply analyze query-document pairs simultaneously with Cohere Rerank to extract the top 3-5 most relevant chunks.