reranking concept in RAG

Topics

• RAG
• reranking techniques

Without Reranking:

• Initial retrieval → Select top-K chunks for final context
• The selected chunks could be irrelevant

With Reranking:

• Initial retrieval → Rerank top-N chunks → Select top-K chunks for final context
• Here N > K, so more likely to get relevant chunks in that group
• Reranking helps to get relevant chunks in the top-K selection process

Related