Abstract
The projection operation can be used to query a CG knowledge base by searching all the specializations of a particular CG — the question. But in some cases it may not be enough, particularly when the knowledge allowing an answer is distributed among several graphs belonging to the fact base. We define two operating mechanisms of knowledge querying, that work by means of graph operations. Both these mechanisms are equivalent and logically based. The first one modifies the knowledge base, while the second modifies the question. The Rap module is an implementation of the last algorithm on CoGITo.
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Guinaldo, O., Haemmerlé, O. (1998). Knowledge querying in the conceptual graph model: The RAP module. In: Mugnier, ML., Chein, M. (eds) Conceptual Structures: Theory, Tools and Applications. ICCS 1998. Lecture Notes in Computer Science, vol 1453. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0054921
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DOI: https://doi.org/10.1007/BFb0054921
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