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Combining multiple knowledge bases

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3 Author(s)
Baral, C. ; Dept. of Comput. Sci., Maryland Univ., College Park, MD, USA ; Kraus, Sarit ; Minker, Jack

Combining knowledge present in multiple knowledge base systems into a single knowledge base is discussed. A knowledge based system can be considered an extension of a deductive database in that it permits function symbols as part of the theory. Alternative knowledge bases that deal with the same subject matter are considered. The authors define the concept of combining knowledge present in a set of knowledge bases and present algorithms to maximally combine them so that the combination is consistent with respect to the integrity constraints associated with the knowledge bases. For this, the authors define the concept of maximality and prove that the algorithms presented combine the knowledge bases to generate a maximal theory. The authors also discuss the relationships between combining multiple knowledge bases and the view update problem

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Knowledge and Data Engineering, IEEE Transactions on  (Volume:3 ,  Issue: 2 )