Studies on Improved Variable Precision Limited Tolerance Relations with a Threshold Number

Research areas:

• Volume 3,Issue 6, May 2015

Year:

2015

Type of Publication:

Article

Keywords:

Incomplete Information System, Rough Set, Symmetry, Variable Precision Limited Tolerance Relation

Authors:

Chen Wu; Youquan Xu; Dandan Li; Lijuan Wang

Journal:

IJAIM

Volume:

3

Number:

6

Pages:

290-295

Month:

May

Abstract:

The present paper first further studies on our improved variable precision limited tolerance relation rough set model suggested by us deeply. It newly defines object classes and overcomes some disadvantages in it. Then it proposes an new improved variable precision limited tolerance relation rough set model with an integer to restrict the identical value number on the same attributes. It discusses properties and relationships between or among several models mentioned, and makes rule generation. It is shown that the obtained results by applying our newly suggested model are more accurate and reasonable.

Full text: IJAIM_443_Final.pdf