Extended Tolerance Relation to Define a New Rough Set Model in Incomplete Information Systems

Joint Authors

Unehara, Muneyuki
Yamada, Koichi
Nguyen, Do Van

Source

Advances in Fuzzy Systems

Issue

Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-10, 10 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2013-09-30

Country of Publication

Egypt

No. of Pages

10

Main Subjects

Information Technology and Computer Science

Abstract EN

This paper discusses and proposes a rough set model for an incomplete information system, which defines an extended tolerance relation using frequency of attribute values in such a system.

It first discusses some rough set extensions in incomplete information systems.

Next, “probability of matching” is defined from data in information systems and then measures the degree of tolerance.

Consequently, a rough set model is developed using a tolerance relation defined with a threshold.

The paper discusses the mathematical properties of the newly developed rough set model and also introduces a method to derive reducts and the core.

American Psychological Association (APA)

Nguyen, Do Van& Yamada, Koichi& Unehara, Muneyuki. 2013. Extended Tolerance Relation to Define a New Rough Set Model in Incomplete Information Systems. Advances in Fuzzy Systems،Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-466826

Modern Language Association (MLA)

Nguyen, Do Van…[et al.]. Extended Tolerance Relation to Define a New Rough Set Model in Incomplete Information Systems. Advances in Fuzzy Systems No. 2013 (2013), pp.1-10.
https://search.emarefa.net/detail/BIM-466826

American Medical Association (AMA)

Nguyen, Do Van& Yamada, Koichi& Unehara, Muneyuki. Extended Tolerance Relation to Define a New Rough Set Model in Incomplete Information Systems. Advances in Fuzzy Systems. 2013. Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-466826

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-466826