AI and LLMs · Middle · Question 5 of 75
What does recall@k measure for a retriever?
- 1How quickly the top k results are returned
- 2How often the relevant chunk is among the top k results
- 3How many tokens the top k results use in the prompt
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Correct answer: How often the relevant chunk is among the top k results
Explanation
If the right passage isn't retrieved, the model can't use it. Retrieval quality is measured separately from answer quality.