Soft set approaches to decision making problems

Authors:
Keyun Qin;Jilin Yang;Xiaohong Zhang
Affiliations:
College of Mathematics, Southwest Jiaotong University, Chengdu, China;College of Fundamental Education, Sichuan Normal University, Chengdu, China;Department of Mathematics, College of Arts and Sciences, Shanghai Maritime University, Shanghai, China
Venue:
RSKT'12 Proceedings of the 7th international conference on Rough Sets and Knowledge Technology
Year:
2012

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Abstract

There are mainly two approaches applying soft set theory to decision making problems, namely, choice value based approach and comparison score based approach. Based on the analysis of these approaches, the main objective of this paper is to propose some improved algorithms which require relatively fewer calculations compared with the existing algorithms. In addition, it has been pointed out that the choice value based approach and comparison score based approach are equivalent for crisp soft set based decision making problems.