Rough Sets and Knowledge Technology 2011 ( RSKT

This special issue of Fundamenta Informaticae contains a selection of papers initially presented at the 6th International Conference on Rough Sets and Knowledge Technology (RSKT’11) held during October 8-11, 2011 in Banff, Canada. RSKT is an international scientific conference series that has been held every year since 2006. The conferences serve as a major forum that brings researchers and industry practitioners together to discuss and deliberate on fundamental issues of knowledge processing and management and knowledge-intensive practical solutions in the current knowledge age. Experts from around the world meet to present state-of-the-art scientific results, to nurture academic and industrial interaction, and to promote collaborative research in rough sets and knowledge technology. We initially had twelve papers invited. After rigorous review, eight papers were selected to be included in this issue. They are substantially extended versions of respective conference papers. Each paper was review by three domain experts and went through at least two rounds of revisions.