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Rewriting Consistent Answers on Annotated Data

Summary: Semiring semantics with limited negation for annotated data; consistent answers are the minimum over repairs. Self-join free CQs with keys: CQA is rewritable iff the attack graph is acyclic; extends Koutris-Wijsen to semirings; bag semiring NP-hard and hard to approximate under strong cycles. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID
1981
Venue
PODS
Year
2025
Pagerank
4.1945683e-05
Overall Rank
10,357 | 27.95%
DOI
10.1145/3725247

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