2016
DOI: 10.1007/s13740-016-0057-4
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Exchange-Repairs

Abstract: In a data exchange setting with target constraints, it is often the case that a given source instance has no solutions. Intuitively, this happens when data sources contain inconsistent or conflicting information that is exposed by the target constraints at hand. In such cases, the semantics of target queries trivialize, because the certain answers of every target query over the given source instance evaluate to "true". The aim of this paper is to introduce and explore a new framework that gives meaningful sema… Show more

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Cited by 4 publications
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References 28 publications
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