Automatically assigned DDC number: 006312

Manually assigned DDC number: 006312

Number of references: 4

Title: Data Summarization in Relational Databases Through Fuzzy Dependencies

Author:

Author:

Author:

Author:

Subject: J. C. Cubero,J. M. Medina,O. Pons,M. A. Vila Data Summarization in Relational Databases Through Fuzzy Dependencies

Description: In this paper we deal with the problem of data summarization through the concept of fuzzy dependency. We introduce a projection operator which leads us to partition a database into two projections with a less amount of information. Thus, we can replace the original relation by those projections. In this process we must guarantee that we can recover the original relation, through the projections, using a special join operator. This process can be done whenever the relation satisfies a fuzzy dependency. The projection represents a set of fuzzy rules explaining such a dependency. Also, we show that this definition of dependency maintains the good properties of completeness as in the classical case. Keywords: Fuzzy Dependencies, Relational Databases, Resemblance, Fuzzy Projection, Fuzzy Join 1 Preliminaries 1.1 Introduction The treatment of non crisp information in databases has been accomplished over the last decade by several authors. The study of incomplete information has been addre...

Contributor: The Pennsylvania State University CiteSeer Archives

Publisher: unknown

Date: 1997-10-10

Pubyear: unknown

Format: ps

Identifier: http://citeseer.ist.psu.edu/144268.html

Source: ftp://decsai.ugr.es/pub/arai/articulos/carlos/is.ps.Z

Language: en

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Relation:

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Rights: unrestricted

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