1
Published 2004
Springer Berlin Heidelberg
Table of Contents: ...Rough Sets – Introduction -- Some Issues on Rough Sets -- Rough SetsTheory -- Learning Rules...

2
by Cios, Krzysztof J., Pedrycz, Witold, Swiniarski, Roman W.
Published 1998
Springer US
Table of Contents: ... Membership Function Determination -- 3.6 Fuzzy Relations -- 3.7 Set Theory Operations and Their Properties...