%0 Journal Article %A Madrid Labrador, Nicolás Miguel %A Ramírez Poussa, Eloísa %T Representative Set of Objects in Rough Sets Based on Galois Connections %D 2020 %@ 0302-9743 %U http://hdl.handle.net/10498/24202 %X This paper introduces a novel definition, called representative set of objects of a decision class, in the framework of decision systems based on rough sets. The idea behind such a notion is to consider subsets of objects that characterize the different classes given by a decision system. Besides the formal definition of representative set of objects of a decision class, we present different mathematical properties of such sets and a relationship with classification tasks based on rough sets. © 2020, Springer Nature Switzerland AG. %K Attribute reduction %K Decision systems %K Object reduction reduct %K Rough Set Theory %~ Universidad de Cádiz