Equation 22 · Retrieval Is an Evidence System, Not a Memory
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the scored with 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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Build a retrieval-only test set first. Queries paired with the identifiers of spans that answer them, scored with recall at k and nDCG. It is cheaper to build than an answer-labelled set, it is reusable across generator changes, and it is the only artefact that survives a model swap.
Sources cited in the article section
- [6] BEIR: A Heterogenous Benchmark for Zero-shot Evaluation of Information Retrieval Models ↗
- [17] Ragas: Automated Evaluation of Retrieval Augmented Generation ↗
- [18] Benchmarking Large Language Models in Retrieval-Augmented Generation ↗
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