By Zongmin Ma
Accumulating the newest learn effects from the top researchers within the box of fuzzy object-oriented databases, Advances in Fuzzy Object-Oriented Databases: Modeling and functions offer a unmarried resource for present learn and sensible functions in fuzzy object-oriented databases. This publication comprises significant elements of fuzzy object-oriented database modeling - conceptual, logical and actual, in addition to information of implementations and purposes. Readers will reap the benefits of an entire realizing of the notions, innovations, and strategies with regards to the learn and advancements of fuzzy object-oriented databases. This ebook can act as a place to begin and a reference for his or her study and advancements and stimulate the curiosity within the box of fuzzy object-oriented databases and additional advertise the study within the box.
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Extra info for Advances in Fuzzy Object-Oriented Databases: Modeling and Applications
Copying or distributing in print or electronic forms without written permission of Idea Group Inc. is prohibited. , object schemes as follows: • The types of both schemes have the same (inherited) characteristics and the associated fuzzy sets of constraints of both schemes are equal. • • The types of both schemes are subtypes of a “common” ancestor type. The type of one object scheme is a subtype of the type of the other object scheme. With the “scheme-compatible” object schemes os 1 = [id 1 ,t 1 ,M 1 ,C t1 ] and os 2 = [id 2 ,t 2 ,M 2 ,C t2 ] as arguments, the operation ∪(os1,os2) [resp.
Aachen, Germany. Rossazza, J. -P. (1990). D. thesis, Université Paul Sebatier, Toulouse, France. Rossazza, J. , & Prade, H. (1997). A hierarchical model of fuzzy classes. In R. ), Fuzzy and uncertain object-oriented databases: Concepts and models (pp. 21–61). Singapore: World Scientific. Shaw, G. , & Zdonik, S. B. (1990). A query algebra for object-oriented databases. In Proceedings of the Sixth International Conference on Data Engineering, ICDE’90 (pp. 154–162). Los Angeles, CA. Taivalsari, A.
The object identifier oid is used to refer to the (state of the) object. The set of Copyright © 2005, Idea Group Inc. Copying or distributing in print or electronic forms without written permission of Idea Group Inc. is prohibited. 22 de Tré & de Caluwe object names N can be empty. The set of all the instances of an object type t ∈ Tobject is written as Vtinstance. If t is a subtype of another object type tˆ, then Vtinstance ⊆ Vtˆ instance. The extent of an object type t is written as Vtextent and is defined as the set of all the persistent instances of t within a particular database.