Jan G. Bazan, Hung Son Nguyen, Andrzej Skowron, Marcin S. Szczuka. A View on Rough Set Concept Approximations. In Guoyin Wang, Qing Liu, Yiyu Yao, Andrzej Skowron, editors, Rough Sets, Fuzzy Sets, Data Mining, and Granular Computing, 9th International Conference, RSFDGrC 2003, Chongqing, China, May 26-29, 2003, Proceedings. Volume 2639 of Lecture Notes in Computer Science, pages 181-188, Springer, 2003. [doi]
Abstract is missing.