Geodesic
Interpolative Relations and Interpolative Preference Structures
Yugoslav journal of operations research, Tome 15 (2005) no. 2, p. 171 .

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Relations are very important mathematical objects in different fields of theory and applications. In many real applications, for which gradation of relations is immanent, the classical relations are not adequate. Interpolative relations (I-relations) (as fuzzy relations) are the generalization of classical relations so that the value (intensity) of a relation is an element from a real interval $[0, 1]$ and not only from $\{0, 1\}$ as in the classical case. The theory of I-relations is crucially different from the theory of fuzzy relations. I-relations are consistent generalizations of classical relations and, contrary to fuzzy relations, all laws of classical relations (set-theoretical laws) are preserved in general case. In this paper, the main characteristics of I-relations are illustrated on the interpolative preference structures (I- preference structures) as consistent generalization of classical preference structures.
Classification : 03E20 03B50 91B08
Keywords: Fuzzy relations, interpolative relations (I-relations), symbolic level of I-relations, structure of I-relations, primary, atomic and combined I-relations, valued level of I-relations, intensity of I-relations, generalized product, interpolative preference (I-preference) structure. 
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     author = {Dragan Radojevi\'c},
     title = {Interpolative {Relations} and {Interpolative} {Preference} {Structures}},
     journal = {Yugoslav journal of operations research},
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Dragan Radojević. Interpolative Relations and Interpolative Preference Structures. Yugoslav journal of operations research, Tome 15 (2005) no. 2, p. 171 . http://geodesic.mathdoc.fr/item/YJOR_2005_15_2_a0/