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An extension of context model for representing vague knowledge
by Van-Nam Huynh; Sadaaki Miyamoto; Yoshiteru Nakamori
International Journal of Reasoning-based Intelligent Systems (IJRIS), Vol. 4, No. 3, 2012


Abstract: In this paper, a framework for representing vague knowledge based on the notion of context model introduced by Gebhardt and Kruse (1993) is discussed. From a concept analysis point of view, it has been shown that the context model can be semantically considered as a data model for fuzzy concept analysis (Huynh et al., 2004). From a decision analysis point of view, in order to deal with the problem of synthesis of vague evidence linguistically provided by experts in some situations of decision analysis, the notions of context-dependent vague characteristics and fuzzy context model will be introduced. It is shown that each context-dependent vague characteristic within fuzzy context model directly induces a uncertainty measure of type 2 interpreted as 'vague' belief function, which is inferred from vague evidence expressed linguistically.

Online publication date: Fri, 16-Nov-2012


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