Reranking
Reranking is a secondary step in RAG (Retrieval-Augmented Generation) pipelines where a highly accurate model evaluates and re-orders the candidate documents fetched during initial vector search, ensuring the most relevant context is placed at the top.
Frequently Asked Questions
Why is reranking needed if we already have vector search?▼
Vector search is fast but can miss complex context nuances. Reranking filters out semantic noise, keeping only the highly relevant chunks.
What type of model is commonly used for reranking?▼
A Cross-Encoder model, which compares the query and document together to compute a deep semantic score.
Quick Facts
- CategoryInformation Retrieval
- Key ApplicationRAG accuracy optimization, search engine optimization, and QA pipeline enhancement.
Coverage Trend12 Weeks
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