Equation 15 · Measuring What a RAG System Retrieves, Not Just What It Answers
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the scored by recall at. Read the equation part by part below; each part has a contextual explanation and a link to its mathematical background.
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What the article says around this equation
The practical consequence is that a retrieval-only evaluation is cheap to build once and reusable forever. A set of queries paired with the identifiers of the passages that answer them, scored by recall at k and nDCG, survives every later change to the generator, the prompt template, or the model vendor, because none of those changes touch the object being scored.
Sources cited in the article section
- [3] The TREC-8 Question Answering Track Report ↗
- [2] BEIR: A Heterogeneous Benchmark for Zero-shot Evaluation of Information Retrieval Models ↗
These citations give research context. Read each source to check which claims it supports.
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