The parameter reduction of soft sets and its algorithm
Soft set theory is a new mathematical tool to deal with uncertain problems. In this paper, we prove the fact that there exists a one-to-one correspondence between "the set of all soft sets" and "the set of all 2-value information systems". Base on this fact, we investigate the parameter reduction of soft sets by means of the knowledge reduction in rough set theory and give an algorithm. Parameters of soft sets are classified and the core of soft sets are obtained.
parameter reductions soft sets one-to-one correspondences information systems rough sets cores