Fuzzy Dominance-based Rough Set in Set-valued Information System
集值信息系统中的模糊优势关系粗糙集

The set valued information system was analyzed by dominanccbased rough set approach. By considering the dominance degree in terms of pair of objects, the concept of fuzzy dominance relation was proposed, the fuzzy technique was then employed in the dominanccbased rough set theory. hhe fuzzy dominanccbased rough set model was presented, then corresponding properties were discussed, from which we obtained new theory and practical approach to derive decision rules from the set valued decision system. Some numerical examples were employed to substantiate the conceptual arguments.