Rough sets International Joint Conference, IJCRS 2017, Olsztyn, Poland, July 3–7, 2017 : proceedings : part II - Polkowski, Lech 1946-; Yao, Yiyu 1962-; Artiemjew, Piotr; Ciucci, Davide; Liu, Dun; Ślęzak, Dominik 1972-; Zielosko, Beata (Lecture Notes in Computer Science, 2017)