# New Set-Level Retrieval Improves Results, Study Finds

- slug: new-set-level-retrieval-improves-results-study-finds
- date: 2026-04-08
- category: Artificial Intelligence

RAG systems have been measuring retrieval quality wrong. A new paper argues the field has been optimizing point-wise relevance when the real objective should be set-level diversity — and shows that without a diversity-aware adapter, NDCG@10 drops by 53.7 percent.

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