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The accuracy and completeness of data exchange largely depend on the semantics of the data exchange problem and are best verified by answering queries over target instances in such a way that is semantically consistent with the source data. The concept of certain answers is used in the definition of the semantics of answering queries. But as certain answers are defined as a relation without null values,...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.