Exchange-Repairs: Managing Inconsistency in Data Exchange

J. Data Semantics, Volume 5, Issue 2, 2016, Pages 77-97.

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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 certai...More

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