Dynamic reduction based on rough sets in incomplete decision systems

Authors:
Dayong Deng;Houkuan Huang
Affiliations:
School of Computer and Information Technology, Beijing Jiaotong University, Beijing, PR China and Zhejiang Normal University, Jinhua, Zhejiang Province, PR China;School of Computer and Information Technology, Beijing Jiaotong University, Beijing, PR China
Venue:
RSKT'07 Proceedings of the 2nd international conference on Rough sets and knowledge technology
Year:
2007

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Abstract

In this paper we investigate the dynamic characteristics in an incomplete decision system while information is increasing. We modify the definition of reduction of condition attributes in this case, and present algorithms of reduction in order to deal with increase information.