TY - GEN A1 - Nicoletti, Maria do Carmo A1 - Uchôa, Joaquim Quinteiro A1 - Baptistini, Margarete T.Z. A2 - Grzymala-Busse, Jerzy - ed. A2 - Świniarski, Roman W. - ed. A2 - Zhong, Ning - ed. A2 - Ziarko, Wojciech - ed. PB - Zielona Góra: Uniwersytet Zielonogórski N2 - Rough Set Theory (RST) is a mathematical formalism for representing uncertainty that can be considered an extension of the classical set theory. It has been used in many different research areas, including those related to inductive machine learning and reduction of knowledge in knowledge-based systems. One important concept related to RST is that of a rough relation. This paper rewrites some properties of rough relations found in the literature, proving their validity. L1 - http://www.zbc.uz.zgora.pl/Content/58781/AMCS_2001_11_3_4.pdf L2 - http://www.zbc.uz.zgora.pl/Content/58781 KW - rough set theory KW - rough relation KW - knowledge representation T1 - Rough relation properties UR - http://www.zbc.uz.zgora.pl/dlibra/docmetadata?id=58781 ER -