In this work, the problem of dealing with incomplete information in object-oriented data models (OODM's) is addressed. A method to compute default values for unknown objects' attributes is proposed, based both on the association of typical values with the attributes in the intensional definition of a class and on the application of a prioritized aggregation operator to combine typical values appearing in an inheritance structure. This method also can be applied to refine vague attribute values expressed by means of fuzzy sets interpreted as possibility distributions. A new interpretation of partial inheritance in this context is proposed, introducing the concept of "partial overriding" of typical values

Pasi, G., & Yager, R. (1999). Calculating Attribute Values using Inherithance Structures in Fuzzy Object Oriented Data Models. IEEE TRANSACTIONS ON SYSTEMS, MAN, AND CYBERNETICS. PART C, APPLICATIONS AND REVIEWS, 29(4), 556-565 [10.1109/5326.798769].

Calculating Attribute Values using Inherithance Structures in Fuzzy Object Oriented Data Models

PASI, GABRIELLA;
1999

Abstract

In this work, the problem of dealing with incomplete information in object-oriented data models (OODM's) is addressed. A method to compute default values for unknown objects' attributes is proposed, based both on the association of typical values with the attributes in the intensional definition of a class and on the application of a prioritized aggregation operator to combine typical values appearing in an inheritance structure. This method also can be applied to refine vague attribute values expressed by means of fuzzy sets interpreted as possibility distributions. A new interpretation of partial inheritance in this context is proposed, introducing the concept of "partial overriding" of typical values
Si
Articolo in rivista - Articolo scientifico
Scientifica
Aggregation operators, Fuzzy set theory, Inheritance, Null values, Object-oriented data models (oodm's), Possibility theory
English
556
565
10
Pasi, G., & Yager, R. (1999). Calculating Attribute Values using Inherithance Structures in Fuzzy Object Oriented Data Models. IEEE TRANSACTIONS ON SYSTEMS, MAN, AND CYBERNETICS. PART C, APPLICATIONS AND REVIEWS, 29(4), 556-565 [10.1109/5326.798769].
Pasi, G; Yager, R
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10281/43388
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