Unverified50% confidenceConceptExact time
recall@k refers to the proportion of questions for which the top k results contain at least one correct text chunk.
1
Sources
50%
Confidence
Long-term
Relevance
10/16/2026
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Related Claims
UnverifiedRecall@K indicates what proportion of truly relevant documents were successfully found among the top K results returned by the system.77% similarUnverifiedNeither Recall@k nor Reciprocal Rank@k measures whether the final answer is correct, safe, or grounded; both only answer questions at the retrieval level.65% similarUnverifiedIn retrieval evaluation, Recall@k is prioritized, because missing evidence leaves downstream generation with no way to recover, whereas bringing back a small amount of noisy documents can usually still be filtered out by the context window or a reranker.60% similarUnverifiedPlacing key information at the beginning and end of the input can mitigate the impact of the 'lost in the middle' effect on results.59% similarVerifiedWord Error Rate (WER) is calculated as (substitution errors + deletion errors + insertion errors) divided by the total number of reference words.58% similar
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