Titlebook: Semantics in Data and Knowledge Bases; Third International Klaus-Dieter Schewe,Bernhard Thalheim Conference proceedings 2008 Springer-Verl

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Rewriting Conjunctive Queries over Description Logic Knowledge Bases ontology is expressed in the language DL-Lite. Finally, we sketch an extended version of the algorithm that would, we are confident, be optimal for several DL languages with data complexity of query answering ranging from . to .-complete.

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Definition and Formalization of Entity Resolution Functions for Everyday Information Integration the data integration decisions made during these activities. In this paper, we formally define entity resolution and de-resolution, and show that these functions behave predictably and intuitively in the presence of attribute value updates.

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A Theoretical Framework for the Declarative Debugging of Datalog Programsropose graphs as a more convenient structure in the case of Datalog, proving formally the soundness and completeness of the debugging technique. We also present a debugging tool implemented in the publicly available deductive database system DES following this theoretical framework.

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