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A different perspective on canonicity

  • Michel Wermelinger
Knowledge Representation
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1257)

Abstract

One of the most interesting aspects of Conceptual Structures Theory is the notion of canonicity. It is also one of the most neglected: Sowa seems to have abandoned it in the new version of the theory, and most of what has been written on canonicity focuses on the generalization hierarchy of conceptual graphs induced by the canonical formation rules. Although there is a common intuition that a graph is canonical if it is “meaningful”, the original theory is somewhat unclear about what that actually means, in particular how canonicity is related to logic.

This paper argues that canonicity should be kept a first-class notion of Conceptual Structures Theory, provides a detailed analysis of work done so far, and proposes new definitions of the conformity relation and the canonical formation rules that allow a clear separation between canonicity and truth.

Topics

Conceptual Graph Theory Knowledge Representation Ontologies 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1997

Authors and Affiliations

  • Michel Wermelinger
    • 1
  1. 1.Departamento de InformáticaUniversidade Nova de LisboaMonte da CaparicaPortugal

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