AI and LLMs · Middle · Question 4 of 75
What does a reranker do in a retrieval pipeline?
- 1Reorders retrieved candidates by relevance with a stronger model
- 2Picks which LLM provider will answer the question
- 3Sorts the final answer's sentences in alphabetical order
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Correct answer: Reorders retrieved candidates by relevance with a stronger model
Explanation
A fast first stage fetches, say, 50 chunks; a cross-encoder reranker picks the best 5 for the prompt, improving precision.