This book constitutes the thoroughly refereed conference proceedings of the 9th International
Conference on Rough Sets and Knowledge Technology RSKT 2014 held in Shanghai China in
October 2014. The 70 papers presented were carefully reviewed and selected from 162
submissions. The papers in this volume cover topics such as foundations and generalizations of
rough sets attribute reduction and feature selection applications of rough sets intelligent
systems and applications knowledge technology domain-oriented data-driven data mining
uncertainty in granular computing advances in granular computing big data to wise decisions
rough set theory and three-way decisions uncertainty and granular computing.
