Titlebook: Uncertainty in Multi-Source Databases; Premchand S. Nair Book 2003 Springer-Verlag Berlin Heidelberg 2003 Confidence Index Set.Database Sy

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https://doi.org/10.1007/978-3-540-37099-4Confidence Index Set; Database Systems; Fuzzy Set; Multi-Source Databases; Operator; Uncertainty; database

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1434-9922 fidence index set (ciset).Includes supplementary material: .Database and database systems have become an essential part of everyday life, such as in banking activities, online shopping, or reservations of airline tickets and hotels. These trends place more demands on the capabilities of future datab

背景

Ciset,shades that can be observed in a typical picture. As an example, a pixel can have a brightness value between 0 and 1. The value 0 may correspond to black and the value 1 may correspond to white. In this case, every number between 0 and 1 corresponds to a certain gray level. Fuzzy theory has made sig

periodontitis

The Relational Model,n as the data structure. After we present the notion of a relation, we present other fundamental concepts such as candidate key, primary key and foreign key. Integrity rules such as the entity integrity rule and the referential integrity rule are presented. We conclude this chapter with a brief intr

投射

The Ciset Relational Model,relation as the data structure. After we present the notion of a ciset relation, we present other fundamental concepts such as candidate key, primary key and foreign key in this model. Both entity integrity rule and the referential integrity rule are also explored.