"New Directions in Rough Sets, Data Mining, and Granular-Soft Computing: 7th International Workshop, RSFDGrC'99, Yamaguchi, Japan, November 9-11, 1999 Proceedings ... / Lecture Notes in Artificial Intelligence)" - читать интересную книгу автора (Ning Zhong, Andrzej Skowron, Setsuo Ohsuga)