Equation 19 · Retrieval Is an Evidence System, Not a Memory
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Because retrieval and generation are separable, an end-to-end score is nearly uninformative about which one broke. Decompose it. Let be the retrieved set and S(x) the set of spans that would suffice to answer x :
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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