Showing papers on "Rough set published in 1980"
01 Apr 1980-International Journal of Human-computer Studies \/ International Journal of Man-machine Studies
TL;DR: The shift operation on S fuzzy sets is introduced and this new operation is used to present a method for multiple objective decision making with ordinal information on both membership grades and importances of the objectives.
Abstract: We introduce S-fuzzy sets as fuzzy sets whose membership grades lie in a finite linearly ordered set. We extend the basic operations from fuzzy sets to these sets. We introduce the shift operation on S fuzzy sets. We then use this new operation to present a method for multiple objective decision making with ordinal information on both membership grades and importances of the objectives.
16 citations