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Colloquium of the Collaborative Research Center SFB 876: Gerhard Brewka (University of Leipzig), 07.07. , 16.15 o'clock, Auditorium OH14

Event Date: July 7, 2011 16:15

Multi-Context Systems: A Flexible Approach for Integrating Heterogeneous Knowledge Sources In this talk we give an overview on multi-context systems (MCS) with a special focus on their recent nonmonotonic extensions. MCS provide a flexible, principled account of integrating heterogeneous knowledge sources, a task that is becoming more and more relevant. By a knowledge source we mean a knowledge base (KB) formulated in any of the typical knowledge representation languages, including classical logic, description logics, modal or temporal logics, but also nonmonotonic formalisms like logic programs under answer set semantics or default logic. The basic idea is to describe the information flow among different KBs declaratively, using so-called bridge rules. The semantics of MCS is based on the definition of an equilibrium. We will motivate the need for such systems, describe what has been achieved in this area, discuss work in progress and introduce generalizations of the existing framework which we consider useful.


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