Sankar K. Pal Rough-Fuzzy Knowledge Encoding and Uncertainty Analysis: Relevance in Data Mining. 1-12 2008 conf/icdcn/2008 ICDCN http://dx.doi.org/10.1007/978-3-540-77444-0_1 db/conf/icdcn/icdcn2008.html#Pal08