A semantic validation of conceptual graphs

The research works on knowledge validation aim at enhancing the quality of knowledge bases. The conceptual graph model is a knowledge representation model which belongs to the family of the semantic networks. We give a solution to validate semantically a knowledge base expressed in terms of conceptu...

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Bibliographic Details
Published in:Knowledge-based systems 2006-11, Vol.19 (7), p.498-510
Main Authors: Dibie-Barthélemy, Juliette, Haemmerlé, Ollivier, Salvat, Eric
Format: Article
Language:English
Subjects:
Computer applications
Conceptual graphs
Expert systems
Graphs
Knowledge base validation
Knowledge based systems
Knowledge representation
Life Sciences
Semantic relations
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Summary:The research works on knowledge validation aim at enhancing the quality of knowledge bases. The conceptual graph model is a knowledge representation model which belongs to the family of the semantic networks. We give a solution to validate semantically a knowledge base expressed in terms of conceptual graphs. The semantic validation of a knowledge base consists in checking that the knowledge base respects a set of constraints given by an expert. We propose to express these constraints in terms of conceptual graphs. Two categories of constraints are introduced: the existential constraints which enable one to represent pieces of knowledge that must or must not exist in the knowledge base and the descriptive constraints which enable one to describe how some pieces of knowledge must be represented in the knowledge base. The checking of these constraints by a knowledge base is done by means of the projection operation which is the ground operation of the conceptual graph model.
ISSN:0950-7051
1872-7409
DOI:10.1016/j.knosys.2005.04.002