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cs.DB2025
Rewriting Consistent Answers on Annotated Data
Phokion G. Kolaitis, Nina Pardal, Jonni Virtema +1
We embark on a study of the consistent answers of queries over databases annotated with values from a naturally ordered positive semiring. In this setting, the consistent answers o…
cs.DB2025
A logic-based framework for database repairs
Nicolas Fröhlich, Arne Meier, Nina Pardal +1
We introduce a general abstract framework for database repairs, where the repair notions are defined using formal logic. We distinguish between integrity constraints and so-called…